EOP-P61-014-7-002-06E PGPL-620Aシリーズ取説(英文) · EOP-P61-014-7-002-06E E.J. OZONE...

EOP-P61-014-7-002-06E

E.J. OZONE PRODUCTS

（様式 EO-H0523-07）

INSTRUCTION MANUAL

OZONE MONITOR

MODEL 620A series

Published on December 22, 2011

EBARA JITSUGYO CO., LTD. MEASURING INSTRUMENT

AND MEDICAL DIVISION

MEASURING INSTRUMENT SALES DEPARTMENT

EAST JAPAN SALES BRANCH WEST JAPAN SALES BRANCH

:

:

2-3-12 Kurigi, Asao-ku, Kawasaki-shi, Kanagawa, 215-0033 JAPAN Tel: +81-44-981-0560 Fax: +81-44-981-0561 E-mail [email protected] 3-2-13, Hiranocho, Chuo-ku, Osaka-shi, Osaka, 541-0046 JAPAN Tel: +81-6-6231-3528 Fax: +81-6-6231-2929 E-mail [email protected]

TECHNICAL ENGINEERING DEPARTMENT

: 2-3-12 Kurigi, Asao-ku, Kawasaki-shi, Kanagawa, 215-0033 JAPAN Tel: +81-44-981-0560 Fax: +81-44-981-0561 E-mail [email protected]

EOP-P61-014-7-002-06E

E.J. OZONE PRODUCTS - 1 -

Introduction Thank you for choosing our ozone monitor “EG-620A series”. This manual is created to help to properly install and use the ozone monitor. Thus, it contains important article which helps to fully take advantage of the ozone monitor. The ozone monitor consists of the following models. PG-620HA: Ozone monitor for high concentration gas PG-620MA: Ozone monitor for medium concentration gas PL-620A : Ozone monitor for dissolved ozone This is a state-of-art ozone monitor equipped with a microprocessor. It can automatically measure ozone concentration in gas phase (liquid phase), and has a function to output process control signal and the self-diagnosis function. Although information stored in the (non-volatile) memory of the microprocessor is not write-protected, you cannot perform its recalibration. For information on the safety precautions, see the marks and descriptions shown below, and “Dangerous Characteristics for Ozone Treatment” and “Cautions on operating the UV ozone monitor” described in page 2 and 3. Indication and description

Mark Description

DANGER

DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

CAUTION indicates a potentially hazardous situation which, if not avoided, may result in serious or moderate injury.

*Note1: Serious injury includes losing eye-sight, injury, burn (due to high/low temperature), electric shock, fracture, toxication, etc. which has after effects or requires hospitalization or prolonged treatment.

*Note2: Minor or moderate injury includes burn, electric shock, etc. which does not requires hospitalization or prolonged treatment, while physical damage includes extended damage related to damaged properties and equipment.

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Dangerous Characteristics for Ozone Handling Please read before using the ozone monitor and its related devices.

DANGER Dangerous Characteristics for Ozone Treatment

Ozone is used for oxidative decomposition of many materials or sanitization/disinfection due to its strong oxidative effect, but it known that ozone is toxic for human health.

Therefore, when operating ozone-related devices, take an appropriate actions to prevent careless exposure to ozone leaked form the peripheral parts.

Biological influences caused by ozone

Ozone concentration [ppm]

Influences

0.01 ～ 0.02 Sensible odor (with the sense of smell becoming gradually accustomed to the smell)

0.1 Strong odor stimulant to nose and throat

0.2 ～ 0.5 Visual deterioration by 3 to 6 hours exposure

0.5 Apparently stimulant to the upper respiratory tract

1 ～ 2

2 hours exposure causes a headache, chest pain, drying of upper respiratory and cough Continuous exposure results in a chronic toxicities

5 ～ 10 Increase in pulse rate and pulmonary edema will be caused

15 ～ 20 Small animals will die within 2 hours

50 Human life will be at risk in 1 hour

(“Report on Ozone Processing” by Japan Water Works Association, August, 1984, Page 40) Acceptable concentration：

Japan :0.1[ppm] Recommendation by Japan Association of Industrial Hygienist (2007 - 2008) USA :0.1[ppm] ACGIH TLV-TWA value (1994)

TLV :Threshold Limit Value TWA :Time Weighted Average Concentration ACGIH:American Conference of Governmental Industrial Hygienists

EOP-P61-014-7-002-06E


DANGER

This monitor is not explosion-proof construction. Never use the monitor in the explosive gas atmosphere. Otherwise, it can cause explosion.

WARNING

If the smell of ozone is detected, stop the instrument and check to see if there are clacked container, damaged pipes, or loosened fittings. In addition check the following points: If the smell of ozone is still detected after the above check, please contact the manufacture.

Never apply sample gas (water) with over maximum pressure resistance to the monitor. It can cause each container and part to be damaged or disrupted, which results in ozone leakage. Unless otherwise stated, sample gas (water) is supposed to be measured under atmosphere pressure.

After a sample gas (water) is measured, its ozone must be decomposed before being exhausted.

This is a precise instrument. It must be protected from shocks and vibrations.

We shall not hold any responsibility, regardless of the warranty period, for accidents or malfunctions caused by alternation/modification of the instrument.

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CAUTION Precautions for handling of the ozone monitor (ozone densitometer)

Fittings and gaskets used in the monitor are not permanent parts. These parts are worn by ozone and other solvents, which may cause a leak. Retighten these parts, and ask request service man to perform a regular inspection (every 1-2 years). If a leak is found or ozone smell is detected, immediately inspect related equipments, including the monitor.

The pressure resistance in the monitor is limited. Do not introduce a sample with unnecessary high pressure. This may cause a leak. Properly understand the specifications of the monitor and perform a regular inspection.

A high voltage power supply for ignition of low-pressure mercury lamps is installed in the monitor. The inside of the monitor must be adjusted and repaired by qualified engineers. Ultraviolet radiation emitted from the low-pressure mercury lamp may adversary affect your eyes or skin. Do not remove the low-pressure mercury lamp from the holder while it is illuminated. Do not stare at it.

The low-pressure mercury lamp, which is a consumable part, contains components hazardous for human health. When the lamp is replaced, it must not be disposed unless properly processed.

Always turn off the instrument before parts are replaced.

In either of the following cases: the sample water (gas) contains fluoride or hydrogen fluoride; wet gas is used; or high concentration ozone gas is introduced into a Teflon pipe, the gas (liquid) connecting portion in the monitor may be eroded/damaged/clouded. If the monitor is broken or measurement cannot be performed due to the above reason, it will not be covered by the warranty regardless of the warranty period.

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Contents 1. General Description..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2. Measurement Principle ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3. Specifications ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 9 4. Outline and Functional Indicators ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.1 Outline ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.2 Functional Indicators ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5. Functions ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 23 5.1 Standard functions ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

(1) Auto zero ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 (2) Hold of analog output ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 (3) Interval timer ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 (4) Self-diagnosis and check mode ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 (5) Test mode...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 (6) Alarm setting ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (7) Data set .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (8) Serial port..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (9) Temperature correction ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.2 Optional functions ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (1) Voltage output ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (2) Pressure correction ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (3) Temperature/pressure correction ...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 (4) Ozone monitor communications software ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

6. Installation and Operation ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 6.1 Use or installation ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

(1) Places where the monitor cannot be used ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (2) Connection of sampling pipes ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (3) Power supply..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 (4) Wiring for control output signal .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 (5) How to connect external signals ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

6.2 Operation (measurement) .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 (1) Preparation before measurement ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 (2) Measurement ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 (3) Re-operation of ozone monitor ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7. Span Adjustment ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 8. Maintenance and Inspection ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

(1) Inspect ion items ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 (2) Trouble shooting ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 (3) Consumables ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 (4) Sensor adjustment ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 (5) Error indications ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

9. Warranty ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

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Figures

Figure- 1 Logic Diagram...................................................................................................................8 Figure- 2 Flow rate and zero gas (water) replacement time curve .......................................... 10 Figure- 3 Outer dimensions and part names ............................................................................... 15 Figure- 4 Mounting plate for fixing .............................................................................................. 16 Figure- 5 MODE SWITCH ............................................................................................................. 17 Figure- 6 COMPENSATION MODE SWITCH............................................................................. 19 Figure- 7 Signal terminal board and serial port (9P connector) on rear panel..................... 22 Figure- 8 Connection example ........................................................................................................ 24 Figure- 9 Auto zero timing chart .................................................................................................. 25 Figure- 10 Interval timer ................................................................................................................ 26 Figure- 11 Straight cable ................................................................................................................ 28 Figure- 12 Figure of flow of gas (when measuring generated ozone) ...................................... 34 Figure- 13 Figure of flow of gas (when measuring exhaust ozone gas) .................................. 35 Figure- 14 Figure of flow of gas (in case of PG-620 MA)........................................................ 36 Figure- 15 Figure of flow of water (in case of PL-620 A) ....................................................... 37 Figure- 16 Example of connecting pipes ....................................................................................... 38 Figure- 17 Equivalent circuit .......................................................................................................... 40 Figure- 18 Reference example of connect circuit ........................................................................ 40 Figure- 19 Inside the monitor (Example: PG-620HA)................................................................. 45 Figure- 20 Cross-section of the low-pressure mercury lamp and the light distribution ........ 46 Figure- 21 Internal board ............................................................................................................... 47

Tables

Table- 1 Consumable parts list ...................................................................................................... 14 Table- 2 MODE SWITCH............................................................................................................... 18 Table- 3 Inspection items ............................................................................................................... 44 Table- 4 How to deal with troubles .............................................................................................. 45 Table- 5 Trouble shooting table ..................................................................................................... 49

Formulas

Formula- 1 Principle ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Formula- 2 Temperature correction ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Formula- 3 Pressure correction ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Formula- 4 Temperature/pressure correction ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Formula- 5 Formula of current calculation ...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Formula- 6 Formula of span adjustment ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

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1. General Description The portable ozone monitors of “620 A series (the device)” is a smaller and lighter ozone

monitor of portable type, which supports continuous measurement. Although it is a portable ozone monitor designed mainly for on-site measurement at various locations, including as measurement in an experiment/study and regular inspection on an industrial ozone supply unit, it also provides a sufficient performance for fixed installation purpose.

This instrument allows you to use the built-in solenoid valve and the setting timer in the monitor

to automatically perform zero calibration (zero adjustment) at a regular interval. In addition, this instrument employs a self-diagnosis function to monitor and display

abnormalities on it. It is designed to be relocated easily so that it can be installed near the location measuring easily-

decomposing ozone. At the same time, it can be embedded into a process control device if it is mounted on a control board by using the optional fixing and mounting plate.

Therefore, it can measure ozone concentration, including checking the abilities of different ozone gas (water) production devices.

The tubing of the sample gas (water) is simply connected to the sample inlet if the sample source

is under pressure, while sampling is performed by using a (optional) pump if it is not under pressure.

Data communications with the host computer can be made via the serial port of the monitor.

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2. Measurement Principle This instrument is an ozone meter of ultraviolet radiation absorptive type, which supplies

sample gas to the detecting area and measure and determine how much ultraviolet radiation the ozone absorb.

A low-pressure mercury lamp (ignition wave length 253.7nm) is used for the light source. The quantity of light absorbed by ozone between light path length‘Ｔ’ is determined in accordance with Lambert-Beer law. The ozone concentration can be calculated as follows:

Ix

Io log

αT

A C ××=

・・・・・・・・・・・・・・・・・・・ Formula- 1

Where, Ｃ：Concentration of ozone α ：ozone absorption coefficient Ｔ：Light path length Ｉｏ： light quantity of incoming ultraviolet radiation Ｉｘ： light quantity of penetrating ultraviolet radiation Ａ：Constant

Figure- 1 Logic Diagram

オゾン

Ｔ

センサ１

センサ２

ランプLamp

Sensor 1

Ozone

Sensor 2

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3. Specifications Models : PG-620HA (for high concentration gas) PG-620MA (for medium concentration gas) PL-620A (for dissolved ozone)

Measurement principle : Ultraviolet radiation absorptive type

Objects to be detected : PG-620HA/620MA ･･･ Ozone gas which does not contain impurities. PL-620A ･･･ Ozone water which does not contain impurities. If it contains other components and temperature of the dissolved

ozone water is particularly lower than neighboring temperature, please contact us.

Measurement range : Models PG-620HA PG-620MA PL-620A

Objects to be measured

High concentration dry ozone gas

Medium concentration dry ozone gas

Dissolved ozone

g/m3 (N) ppm g/m3 (N) mg/L Measuring range * Selectable one range whichever

Setting when shipping

0-2.00 0-5.00 0-9.99

0-20.0 0-50.0 0-99.9

0-200 0-400

0-200 0-500 0-999

0-1.00 0-2.00 0-5.00

0-9.99

0-20.0 0-30.0 0-50.0 0-99.9

*Note 1 : In the case of hope, unit indication wt% with a high concentration gas monitor, please appoint it at the time of ordering.

*Note 2 : The (N) of [g/ m3 (N)] indicates the value in the standard value (0°C, 1013hPa(Abs)). *Note 3 : The smallest indication in case of the liquid phase is to a decimal first place.

Measuring interval : Continuous measurement, but performs the zero calibration (zero correction) by the automatic zero function periodically.

Sampling method : PG-620HA/PL-620A ･･･ Push out by supply pressure or by outside pump PG-620MA ･･･ Internal pump suction method

Measuring flow rate : PG-620HA/MA ･･･ 0.2 - 2.0 L/min PL-620A ･･･ 0.1 - 0.6 L/min

*Note : When using a pump for sampling at PL-620A, this flow rate should be lower value than 0.3 L/min.

Rated pressure (inlet) : PG-620HA ･･･ +39.2 - +78.4 kPa(G) PG-620MA ･･･ -1.47 - +1.47 kPa(G)

*If the pressure is higher than the above value, pressure correction must be performed.

PL-620A ･･･ 0 - +50 kPa(G)

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流量とゼロガス(水)入替時間

0

5

10

15

20

25

30

0 0.1 0.2 0.3 0.4 0.5 0.6

流量　[L/min]

入替

時間

　[sec]

Maximum allowable pressure (inlet) : PG-620HA/PL-620A ･･･ +0.3 MPa(G) or less PG-620MA ･･･ -0.08 - + 0.08 MPa(G)

*Note : PG-620MA has a pump installed inside. Excessive pressure may damage the pump. Do not apply a pressure higher than the maximum allowable pressure.

Outlet pressure : Atmospheric pressure

Span drift : Within ±1%FS/month

Zero drift : Within ±1%FS/month (a value under the conditions below) *Note : Zero calibration should be performed at interval mode. When shipping the monitor, the interval timer and replacing time of sample gas (water) are respectively set to 10 minutes and 20 seconds.

Linearity : Within ±1%FS

Repeatability : 1%FS or less

Zero adjustment : The internal timer triggers zero calibration regularly. *Note1 : In PG-620HA and PL-620A, the zero gas (water) must be the raw gas (water) of the ozone generator or the ozone water production machine. *Note2 : Replace time of material gas needs to be changed in accordance with the flow rate. Set the replacing time, referring to the Chart-2. This time is set to 20 seconds when shipping the monitor.

Figure- 2 Flow rate and zero gas (water) replacement time curve

Flow rate [L/min]

Rep

lace

men

t ti

me

[sec

]

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Display : Main : Concentration display The smallest indication figure of each monitor is as follows

• PG-620HA/PL-620A ･･･ less than 10g/m3(N), mg/L: Indication of 2 decimals 20 - 99.9g/m3 (N), mg/L: Indication of 1 decimal more than 100g/m3(N), mg/L: Indication of 1 digit integer • PG-620MA ･･･････････ g/m3(N) unit: Indication of 2 decimals ppm unit: Indication of 1 digit integer

Sub : Mode indication of the main display gas-phase monitor ･･････ Temperature display Unit : °C Pressure display Unit : hPa(ABS)

*Note : When the optional pressure correction function is added.

Span adjustment : Digital setting (0.1% interval)

Monitor output : As the output, monitor (PG-620HA/MA) for gas is 6 systems including an option, the dissolved ozone monitor (PL -620A) is 4 systems.

During-measurement signal : Output is made only when the measurement is performed properly. (photo coupler open corrector output. The relay output is possible with an option) Error signal : Output when the monitor is malfunctioning. (photo coupler open corrector output. The relay output is possible with an option) Density alarm output : Any one-step warning can be set. Two systems (relay output) (a contact Rated contact capacity AC 100V, 1A) Pressure warning output : Arbitrary signal level alarm settings 2 channels (When only PG-620HA/MA is optional, and a pressure correction function is added)

Analog output : DC 0 - 1V and DC 4 - 20mA (insulation output) However, the allowable external resistance is more than 10 kΩ for voltage signal output, and 750 Ω or less for current signal output.

Monitor input : Auto zero timing input Driven by photo couplr Driving current 10≦ i≦20 mA However, when using the internal timer, this outside signal cannot be received.

Self-diagnosis function : Detect and identify defective light source, contaminated cell, abnormal internal circuit, etc.

Test mode : Supports the test of analog output, alarm contacts, and solenoid valve operation

Serial port : data transmission via RS232C １）Basic specifications ①Connector type : D-sub 9pin ②Communication rate : 9600bps ③Communication type : full - duplex ④Data bit length : 8 bit ⑤Stop bit length : 1 bit ⑥Parity : no

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２）Transmission format The typical format for both send and receive is as follows: STX data ETX (02h) (03h) Data portion contains upper-case ASCII characters (lower-case characters are not accepted). When data portion has plural numbers, enclose them with comma (,).

３）Data portion format ①Command Ⅰ !(21h)Data poling : output request of measurement data Ⅱ S(53h)Sense : Output request of monitor internal state Ⅲ Z(5Ah)Zero set : auto zero start request Ⅳ M(4Dh)measure set : forced measurement start request ②Response Response means transmission of data from the monitor in response to the above commands. The number of characters in data portion (fixed word length) is 23 characters for data polling and 2 characters for others.

Ⅰ Output of measurement data !A(21h 41h), concentration , pressure, and temperature, 0/1

(ⅰ) Trailing 0/1 indicates the following: 0 shows measured data has no error and 1 shows data has error (ⅱ) In the case of the following, internal data value is indicated as space and the end is as 1.

When the mode switch is at other than MES UP2 Err AutoZero

(ⅲ) Units and the number of figures of concentration value, pressure value and temperature value are the same as the indication. However, the indication has no decimal point, period is added to the end of concentration value.

Ⅱ Output of monitor internal state SA(53h 41h) ，?? Following texts are output for ??

(ⅰ) OK ：When measuring the concentration (ⅱ) UP ：When warming up the monitor (UP2 state) (ⅲ) NM ：When the mode switch is not set to MES (ⅳ) ZR ：during auto zero operation (during analog hold) (ⅴ) E0 – E6 ：Error state

Ⅲ Acceptance of auto zero start request ZO(5Ah 4fh) OK (command accepted) ZN(5Ah 4eh) NG (command not accepted) *Note：This command is not accepted when the internal timer is used. Ⅳ Forced measurement start request MO(4Dh 4fh) OK (command accepted) MN(4Dh 4eh) NG (command not accepted)

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Temperature correction : Range of temperature compensation : 5-45°C Compensated temperature : 0°C (273K) However, function to be limited to a monitor for gas phases (PG-620HA/MA).

Power supply : AC 100 - 220V ±10%, 50/60Hz

Power consumption : 50VA or less

Outer dimensions : 130W x 318H x 320D mm *Note : The other projections are not included.

Weight : Approximately 6kg

Operating environment : 5 - 40°C

Relative humidity : 90%RH or less (no condensation)

Accessories : AC cable (1.5m) … 1set Fuse with rating of 250V AC, 1A (withstand rush current type approved by UL standard) … 1pc

Pipe-connecting port : Sample gas (water) inlet and outlet PG-620HA ･･･ Rc(PT)1/8 inch (M) PG-620MA/PL-620A ･･･ φ6mm & φ1/4 inch tube fitting (flow-well 30 series) Zero (raw) gas (water) inlet PG-620HA ･･･ Rc(PT)1/8 inch (M) PG-620MA/PL-620A ･･･ φ6mm & φ1/4 inch tube fitting (flow-well 30 series) Dry air inlet port (PL-620A only) ･･･ One touch type fitting with O.D 4mm

Optional functions : All the following functions are set at the factory as optional when shipping. ①Analog output DC 0–10V (average is DC 0 to 10V) Applicable load resistance to external is over 10 kΩ . ②Pressure correction (PG-620HA/MA only) The absolute pressure sensor corrects concentration, and pressure value can be read directly. Range of pressure compensation : 0-1961hPa(ABS)(0-2kgf/cm2(ABS))absolute pressure Compensated pressure : 1 atmosphere (atmospheric pressure) ③Mounting plate for fixing When fix a monitor, use it. ④Ozone monitor communications software You can import data from the monitor into a PC.

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Consumable parts : The component parts used in the monitor have an operating life. All the parts are warranted for one year from the date of delivery. And then, deterioration and/or corruption of materials by ozone reaction are out of our duty for warranty. Replacing criteria of the main parts are as follows.

Table- 1 Consumable parts list

No. Product name Goods code quantity Replacement term

Common consumable parts

1 low-pressure mercury lamp BZ103A 1 pc every 2 years

2 cell (※1) 1 pc different in the use

situation (※2)

3 3 ways solenoid valve EM086A 1 pc every 3 year (※3)

4 UV sensor BZ076D 1 pc different in the use

situation (※4)

PG-620HA use

1 flowmeter packing BZ035A 1 pc every 1 year

2 O-ring NO095A NO096A

each 1 pc different in the use

situation (※4)

PG-620MA use

1 flowmeter packing NO016A 1 pc every 1 year

2 filter (for zero gas) NF008A 1 pc every 3 year

3 filter (for sample gas) NF012A 1 pc every 1 year

4 pump BZ227A 1 pc every 1 year

PL-620A use

1 flowmeter packing BZ035A 1 pc every 1 year

※1 : It is different in a model and a density range. Please consult it with us. ※2 : In either of the following cases: the sample water (gas) contains fluoride or hydrogen fluoride; wet gas is used; or high concentration ozone gas is introduced into a Teflon pipe, the gas (liquid) connecting portion in the monitor may be eroded/damaged/clouded. If the monitor is broken or measurement cannot be performed due to the above reason, it will not be covered by the warranty regardless of the warranty period. ※3 : When assume an interval of the zero calibration for ten minutes. ※4 : Please consult it with us.

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4. Outline and Functional Indicators

4.1 Outline

Rubber feet

Mounting plate for fixing (option)

Figure- 3 Outer dimensions and part names

PA 1

PA 2

MES

ERR

AUX

REF. IN

AC 50/60Hz 90～260V

SAM. IN

FUSE

3A+

+

-

-

+

-ZIN

-

-

+

+

-

+

OUT

V 0

AL 1

AL 2

R S2 32 C

C N

+

-

+

-

-

+

-I 0

+

ＦＬＯＷ

ＤＡＴＡＰＯＷＥＲ

ＳＷ１ＳＷ２

ＣＯＭＰＥＮＳＡＴＩＯＮＭＯＤＥ

ＨＡＲＥ

130 320

①

⑩

⑨

②③

⑤⑥

⑦

⑧

⑪

④

⑫

⑬

⑮

⑭

⑰

318

⑯

⑲⑱

PA 1

PA 2

MES

ERR

AUX

REF. IN

AC 50/60Hz 90～260V

SAM. IN

FUSE

3A+

+

-

-

+

-ZIN

-

-

+

+

-

+

OUT

V 0

AL 1

AL 2

R S2 32 C

C N

+

-

+

-

-

+

-I 0

+

ＦＬＯＷ

ＤＡＴＡＰＯＷＥＲ

ＳＷ１ＳＷ２

ＣＯＭＰＥＮＳＡＴＩＯＮＭＯＤＥ

ＨＡＲＥ

130 320

①

⑩

⑨

②③

⑤⑥

⑦

⑧

⑪

④

⑫

⑬

⑮

⑭

⑰318

90 3004-φ5.5 Hole

⑯

⑳20 ⑲

⑱

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① Power switch ② Main display ③ Sub display ④ Status indication (LED) ⑤ Mode switch ⑥ Compensation mode switch

(Not used in PL-620A) ⑦ Setting switches 1 and 2 ⑧ Data input switch ⑨ Flow meter ⑩ Flow adjusting valve ⑪ Socket for power cable

⑫ Fuse holder ⑬ Connector for RS232C ⑭ Terminal block for signals ⑮ Inlet for sample gas (water) ⑯ Inlet for zero gas (water)

(Used in PG-620HA/PL-620A) ⑰ Outlet for sample gas (water) ⑱ Inlet port of dried air

(Used in PL-620A) ⑲ Rubber feet ⑳ Mounting plate (option)

Figure- 4 Mounting plate for fixing

２８０

３００

３２０

９０

１３

０

４－φ５.５

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4.2 Functional Indicators

(1) Power switch (POWER)

Turn on/off the power. (2) Main display (digital display)

The ozone concentration is displayed when it is measured. Main indicator can also be displayed according to the settings is error display, relevant setup values and mode switch. (3) Sub display (digital display)

Display the position of the mode switch.

The sub indicator displays the temperature value in PG-620HA/MA, and also displays the pressure value when options are selected. (4) Status indicattion (LED)

This is a lamp to indicate the state of the monitor. It is illuminated or blinked depending on the following states.

① The status indicator illuminates when displaying the temperature in the sub indicator (when used as a gas monitor only).

② It also illuminates when input is enabled in each of the data setup modes.

③ It blinks when zero gas is aspirated in auto zero mode. (5) Mode switch (MODE)

Switch the display among measurement, adjustment, alarm setting, etc.

A number indicating the position is displayed in the sub display device when the mode switch is set to a mode other than Measurement Mode (MES).

To modify the internal setup value of the monitor, refer to the pages in “5.1 Standard functions (7) Data set”.

Figure- 5 MODE SWITCH

MODE

MESCK1CK2AL1AL2

PA1 PA2 INTPUR

TE1TE2

TE3SPN

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Table- 2 MODE SWITCH

Signal Output Position

Sub display

Functions MES ERR AL1･2 PA1･2 ANALOG SV

Remarks

MES Ozone concentration measurement

Activated －－－－ Samp(ref)

CK1 1 Sensor 1 light-quantity check

Inactivated Hold Hold Inactivated Hold ref

CK2 2 Sensor 2 light-quantity check

Inactivated Hold Hold Inactivated Hold ref

AL1 3 Display and setting of alarm 1

Inactivated Hold Hold Inactivated Hold samp

AL2 4 Display and setting of alarm 2

Inactivated Hold Hold Inactivated Hold samp

PA1

5

Display and setting of pressure alarm 1 (optional)

Inactivated Hold Hold Inactivated Hold samp ①

PA2

6

Display and setting of pressure alarm 2 (optional)

Inactivated Hold Hold Inactivated Hold samp ①

INT

7

Display and setting of interval timer of auto zero

Inactivated Hold Hold Inactivated Hold

samp ②

PUR

8

Display and setting of purge time (zero gas (water)) aspiration time

Inactivated Hold Hold Inactivated Hold samp ③

TE1

9

Test mode 1 (analog output test)

Inactivated Hold Hold Inactivated － samp ④

TE2

10

Test mode 2 (solenoid valve test)

Inactivated Hold Hold Inactivated Hold － ④

TE3

11

Test mode 3 (alarm output test)

Inactivated Hold － Inactivated Hold samp ④

SPN 12 Display and setting of span value

Inactivated Hold Hold Inactivated Hold samp ⑤

*Note： Output signal : Output signal from rear panel of control module (except for SV) SV : Solenoid valve (three-way valve) samp : sample gas ref : zero gas hyphen(-) : refers to changes Hold : the previous state

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Remarks ① This is valid only for gas monitors (PG-620HA/MA) that possess optional functions to

compensate pressure. Measured in units of hPa(Abs)(absolute pressure). For details, refer to relevant pages in 5.2 Optional functions (2) Pressure correction.

② Mode for displaying and setting cycles to remove zeros. It is set to 10 minutes (600) before its shipment from the factory.

③ This process is performed when setting up the aspiration time of zero (raw) gas used for zero correction through zero calibration. Adjust setting in accordance with duct length and flow rate in units of seconds up to a maximum value of 90 seconds. Factory default setting is set to 20 seconds.

④ See “5.1 Standard functions (5) Test mode”.

⑤ This is a mode to display and set the span value. The value is calibrated before its shipment from the factory.

See “7. Span Adjustment” for more information. (6) Compensation mode switch (COMPENSATION)

This is used only for the gas monitor (PG-620HA/MA). Not used for the liquid phases monitor (PL -620A). The switch is for toggling between temperature and pressure corrections.

For more information, refer to “5.1 Standard functions (9) Temperature correction” and “5.2 Optional functions (2) Pressure correction/ (3) Temperature/pressure correction”. Figure- 6 COMPENSATION MODE SWITCH

OFF ： The temperature and pressure will not be compensated. The analog output also outputs non-compensated concentrations. The main indicator shows non-compensated concentration if “MES” is selected on the above mode switch.

PRS ： Only the pressure will be compensated. The analog output also outputs compensated concentrations.

TMP ： Only the temperature will be compensated. The analog output also outputs compensated concentrations.

ON ： The temperature and pressure are compensated. The analog output also outputs compensated concentrations.

*Note： Pressure correction is an optional function.

COMPENSAT ION

OFFPRS TMP

ON

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(7) Setting switch 1 (SW1)

Setting switch 1 is used during setting mode and test mode. For more information, refer to the pages in “5.1 Standard functions (7) Data set”. (8) Setting switch 2 (SW2)

Setting switch 2 is used to toggle between temperature value and pressure value displays when the optional pressure correction function is being added to the gas monitor (PG-620HA/MA).

Auto zero can be manually performed by simultaneously pressing SW1 and SW2 for approximately one second while the interval time of auto zero is set to 0.

Perform auto zero when only zero gas (water) is allowed to flow.

Do not press when allowing ozone gas (water) to flow.

The zero point will be offset thereby causing inaccurate density measurement.

The factory default setting of the interval time is set to 10 minutes (600). (9) Data input switch (DATA)

This is used to input data in the setting mode. For more information, refer to the pages in “5.1 Standard functions (7) Data set”. (10) Flow meter

It is a float type flowmeter for checking the flow rate of sample gas (water) to be measured. (11) Flow adjusting valve

This is a valve to control the flow rate of sample gas (water). The valve controls the appropriate flow rate. Fully open the control valve in situations described in the next. For more information, refer to relevant pages in “6.1 Use or installation (2) Connection of sampling pipes”.

① When applying pressure over 0.1 MPa(G) to sample entry point or zero gas (water) entry point, fully open this flow control valve and additionally set up a separate flow control valve at the sample entry point.

② When use P-620A by pull pressure (absorb it with a pump from the drainage exit of the monitor), please open up this adjustment valve all the way.

(12) Socket for power cable

This is a socket to connect the power cable of the ozone monitor to an external commercial power supply. The power supplied must be AC 100-220V ±10%, 50/60Hz. (13) Fuse holder

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Specifications of fuse A rash-resistant type UL certified fuse (φ5.2 x 20mm AC 250V 1A) must be used. (14) Connector for RS 232C

This is a connector to be used to communicate with the host computer via the serial port. It is compliant with the RS232C standard. (15) Terminal block for signals

By transmitting the input signal and other optional signals, and by pressing the tab of the terminal, you can insert the cable core of AWG#26～18 in order to connect. For information on connections, refer to relevant pages on “6.1 Use or installation (5) How to connect external signals”. Reversal of polarity may cause failure. Under standard specifications, AL1 and AL2 are relay outputs. MES and ERR are a photocoupler output. You may optionally modify the two lines to a relay output; this will however convert AL1 and AL2 to a photocoupler output. PA1 and PA2 are not used in standard products. This will be activated when the optional pressure correction function is added to the gas-phase monitor (PG-620HA/MA). A description of states under the standard specifications is provided below. VO ： Analog voltage output DC 0-1V or 0-10V (optional)

IO ： Analog current output DC 4-20mA The load resistance that can be connected externally is 750Ω or less.

AL1&AL2 ： This is an alarm 1&2 relay contact output (a contact) Rated contact capacity AC 100V, 1A Only the two Density alarm output lines are relay outputs under normal conditions.

PA1&PA2 ： Pressure alarm 1 Photocoupler output It is activated when pressure exceeds the preset pressure value in an open collector that is disjoined. This is valid only when the optional pressure correction function is attached to PG-620HA/MA. Not used in PL-620A.

MES ： Measurement signal It is activated when being measured normally in an open collector that is disjoined.

ERR ： Error signal It is activated when aberrance is detected to the monitor. It is a disjoined open collector.

ZIN ： Auto zero start plus input This is usually not used, except for the case that the external timing triggers auto zero. See “5.1 Standard functions (1) Auto zero”.

AUX ： Auxiliary terminal. This is an unused auxiliary terminal; do not connect anything.

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9P connector

Figure- 7 Signal terminal board and serial port (9P connector) on rear panel (16) Inlet for sample gas (water)

This is an inlet for sample gas. PG-620HA uses Rc(PT)1/8 inch(M), while PG-620MA/PL-620A uses φ6mm &φ1/4 inch tube fitting (flow-well 30 series). Connect the sample gas (water) tubing. (17) Inlet for zero gas (water)

This is an inlet for zero gas. PG-620HA uses Rc(PT)1/8 inch(M), while PG-620MA/PL-620A uses φ6mm &φ1/4 inch tube fitting (flow-well 30 series). Connect the raw gas (water) tubing of ozone gas (water) production equipment.

*Note： In either of the following cases: the sample water (gas) contains fluoride or hydrogen fluoride; wet gas is used; or high concentration ozone gas is introduced into a Teflon pipe, the gas (liquid) connecting portion in the monitor may be eroded/damaged/clouded. If the monitor is broken or measurement cannot be performed due to the above reason, it will not be covered by the warranty regardless of the warranty period.

＋

－

＋

－

＋

－

＋

－

＋

－

＋

－

＋

－

＋

－

VO

IO

AL 1

AL 2

PA 1

PA 2

MES

ERR

ZIN

AUX

＋

－

＋

－

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(18) Outlet for sample gas (water)

This is an outlet for sample gas (water). PG-620HA uses Rc(PT)1/8 inch(M), while PG-620MA/PL-620A uses φ6mm &φ1/4 inch tube fitting (flow-well 30 series). Connect the outlet tubing. Sample gas (water) must be exhausted after ozone gas (water) is decomposed. (19) Inlet port of dried air

This inlet is only applicable to PL-620A, and is used to prevent a dew condensation on inside of the monitor. When a case and sample water temperature to use in the environment of high temperature and humidity are low , and dew condensation is expected, please pour dry air into this inlet. This is a one-touch fitting of φ 4mm. This flow rate is suitable to be 0.1~1.0 L/min. Please use an oil-less compressor so that a dust mist does not enter.

5. Functions

5.1 Standard functions

(1) Auto zero

In case of ozone densitometer of ultraviolet radiation absorptive type, the zero point may be deviated along the time. The instrument can perform this adjustment automatically with the timer in the monitor, the switch on the front panel, or external signal. The gas (water) replacement time can be set to any value within 0 and 90 seconds in increments of 10 seconds by the operation from the front panel. It is set to 20 seconds by the factory default. Set it depending on the flow rate to the monitor.

*Note1： To use this function on PG-620HA/PL-620A, zero gas (water) (raw gas (water)), along with sample gas (water), must be provided.

*Note2： The compensated value is not lost after the power is turned off. However, because the compensated amount may be deviated after prolonged power off, recalibration of zero must be performed.

• Automatic calibration 1 (Auto zero by the internal timer) 2 The instrument has a timer installed inside, on which you can make any settings. Therefore, this timer can trigger zero point adjustment regularly. For more information on the internal timer, see “5.1 Standard functions (3) Interval timer”.

• Automatic calibration 2 (Auto zero by an external sequencer) This is the periodical calibration by using the controller such as an external sequencer. Input the external signals into the rear panel of the monitor. An connection example is shown below.

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A photo coupler is used for input to the monitor. Make the setting so that the value of the current “I” settles within the range of the expression below.

10 ≦ i ≦ 20 mA

Figure- 8 Connection example

*Note1： The “ON” time of the controller (sequencer, timer relay, etc.) should be approximately one second.

*Note2： If the output of the controller (sequencer, etc.) is by the transistor (open collector), make the connection as shown in Figure-8. Be careful about the polarity. If the polarity is not set correctly, a failure may occur.

• Manual calibration (Manual zero) [1] Check that the mode switch is set to MES. The zero calibration input is rejected when a mode other than the MES mode (check mode, test mode, setting mode) is engaged.

[2] Press the setting switches 1 and 2 simultaneously for approximately one second. (By this, the calibration is executed.)

*Note1： When the zero calibration is executed by “Automatic calibration 2” or “Manual calibration,” set the interval time to “0”.

*Note2： Provide the zero gas (water) (raw gas (water)) beforehand by seeing “Figures-12 through 15”. (2) Hold of analog output

When the auto zero operation is executed, the analog output is held for the double time of the sample gas (water) replacement. The operation timing is shown below. Or, the concentration alarm (described later) is not affected during this time. The purge time (gas (water) replacement suction time) T can be set to any value within 0 and 90 seconds in increments of 10 seconds. For setting procedures, see “5.1 Standard functions (7) Data set”. If “T = 0” is set, it is recognized that the zero gas (water) suction time is none, and the auto zero calibration is immediately executed. In this case, no analog hold is activated.

オゾンモニタ

リアパネル

ZIN

＋

－

Vcc

R

コントローラ

→ｉ

Controller Ozone monitor

Rear panel

Vcc

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Figure- 9 Auto zero timing chart The raw gas (water) replacement time needs to be changed depending on the flow rate. Set it by seeing the graph of “Figure-2” on page 9. “20 seconds” is set by the factory default. (3) Interval timer

The instrument has an interval timer for auto zero installed inside. The interval timer enables the arbitrary setting of the zero calibration cycle separately from the timer for zero gas (water) suction time. Settable values are listed below. As the indication of unit of time, the respective special characters are shown at the top of the main display. “600sec (10min)” is set by the factory default.

Specified time unit Special character 0,30,120,300,600 sec blank 1,2,5,10 hour H 1,2,5,7,14,30 day L

The timing chart is shown in “Figure-9”. Note that there are three cases of the first auto zero trigger generation when the interval timer is a finite value (other than 0), as shown below.

[1] When the measurement (MES) mode is engaged from the warm-up operation (UP 20) [2] When the measurement mode is engaged from the check mode [3] When the compulsory command of entering the measurement mode is entered via RS232C during the warm-up operation The next and subsequent zero calibration is executed at the set interval timing.

Analog hold

2T = Hold time

Switch

(external signal)

Gas (water) replacement time

Calibration data

T = Gas (water) replacement time

(arbitrary time)

Auto zero activation Start

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When the interval timer is set to “0” (T2 = 0), the auto zero operation is executed at the timing shown below.

① When the switches 1 & 2 are pressed at the same time ② When auto zero signal is input from outside ③ When the command for zero set is input from RS232C

When the T2 is set to 0, it is considered that there is no self interval. Therefore auto zero operation is not performed after that. However when a signal is input externally or from the front panel again, the auto zero operation is done. When the auto zero is triggered by a signal from the controller provided outside, do not set this interval timer (Input 0). When the interval time is a finite value (a value other than 0), the monitor itself is considered as controlling the interval of zero. Therefore any external triggers are not accepted. The external trigger here is any of the switch on the front panel, input from the terminal block, or command of the serial port. Switch (External signal) Auto zero

Figure- 10 Interval timer (4) Self-diagnosis and check mode

① Self-diagnosis function This device detects an abnormality occurred internally during measurement and displays the error on the main display of the front panel. In addition, the terminal block outputs an error signal. In this case, it is impossible to perform measurement normally. For types of errors, refer to “8. Maintenance and Inspection (5) Error indications”.

② Check mode This mode is used to check the quantity of light from the low-pressure mercury lamp. Select CK1 by the mode switch to display the value for sensor 1 and select CK2 for sensor 2. Since the lamps are consumable items, use this mode to check the time for lamp replacement.

(5) Test mode

This mode is used to test the external signal connected to the device. The following three tests can be performed.

EOP-P61-014-7-002-06E


① Test mode 1 (analog output test) Select TE1 by the mode switch to test the analog output. Press the setting switch 1 (SW1) while in this mode to shift the selection of the main indicator as follows: 0%, 25%, 50%, 75%, 100%. The analog output changes at the rate that corresponds to the full scale.

② Test mode 2 (solenoid valve operation test) Select the TE2 by the mode switch to test the solenoid valve operation. By pushing the setting switch 1 (SW1) when the device enters this mode, the following contents are displayed on the main display sequentially to check the operating and non- operating conditions of the solenoid valve.

Display of P : Operating (Solenoid valve is turned on)

Display of S : Non-operating (Solenoid valve is turned off)

indicates blank.

③ Test mode 3 (alarm output test) Select TE3 by the mode switch to perform operation test of the output signal for concentration alarms. When the test is performed in this mode, the setting switches 1 (SW1) and 2 (SW2) correspond to alarm 1 and alarm 2, respectively. The main display displays as follows:

(6) Alarm setting

The device has two systems of alarms. Since these systems operate independently, two values of maximum and minimum canbe set. The values to the full scale ones can be input as the set value of this alarm. When the value displayed exceeds the set alarm value during measurement, the alarm signal connected to the terminal block on the backside activates. For the input procedure, refer to “(7) Data set” below. (7) Data set

Users can easily set various constants on this device. The following constants can be set. Concentration alarm(AL1, AL2), Pressure alarm(PA1, PA2) However, when optional pressure correction is performed with the gas monitor, seven kinds in five systems of interval time (INT), zero gas inlet time (PUR), and span set value (SPN) are available. These constants are stored in the device even after the power is turned off.

① If either of the modes is selected on the mode switch, the currently specified value will be output to the main indicator.

② Press the setting switch 1 (SW1), and the state indication (LED) lights up and the device enters a mode in which setting can be made.

Test for alarm 2: Display “1” for ON or “0” for OFF

Test for alarm 1: Display “1” for ON or “0” for OFF

EOP-P61-014-7-002-06E


③ By turning the data knob, the value displayed on the main display changes. Turn right (clockwise) to increases the value and turn left (counterclockwise) to decrease it.

④ Press the setting switch 1 (SW1) again, and the input value is fixed. The state indication (LED) goes out and the input is completed.

⑤ When the mode switch is changed from the condition in ② or ③, the value is not changed.

*Note1： The value of interval time is set at “600” before shipment from the factory. *Note2： The zero gas (water) inlet time is factory-set to “20”. *Note3： The span is set to the factory-calibrated value using our standard instrument. (8) Serial port

Send and receive data by handshaking with the host computer. It works in response to commands from the external control device(DTE). Therefore, without an order by the command, data is not output from the monitor. When any data other than the command specified is received, the monitor does not respond. After the receipt of a command, the monitor does not accept the next one until it completely output the answer. Basically, select MES mode by the mode switch. It is impossible to operate this switch externally. Use commercially available straight cable.

Figure- 11 Straight cable

① Basic specifications • Connector type : 9-pin D sub, female 1:CD 2:TD 3:RD 4:DTR 5:GND 6:DSR 7:RTS 8:CTS 9:RI(open)

*Note ： The size of mounting screws to fix the connector is UNC#4-40 (in inches).

• Communications speed : 9600bps • Communications type : full-duplex • Data bit length : 8 bits • Stop bit length : 1 bit • Parity : None • X parameter : Not used

EOP-P61-014-7-002-06E


② Transmission format The typical transmission format is described as below for both transmitting and receiving. STX Data ETX (02h) (03h) Only upper case alphabetical ASCII characters are allowed for data portion (lower case is not available). More than one data portion are separated by commas (,).

*Note ： From STX to ETX1 forms 1 sentence. The number of characters varies depending on the command, while each command has a fixed word length.

③ Data portion format

• Command From host to monitor, the following 4 commands are available. Basically, the monitor is operated by these commands. Therefore, the monitor will not respond if it receives any other data than the specified commands.

・ !(21h) Data polling : Output request for measured data ・ S(53h) Sense : Output request for internal condition of the monitor ・ Z(5Ah) Zero set : Request of auto zero start ・ M(4Dh) Measure set : Request of forced measurement start

If auto zero is triggered from the serial port, do not set the internal interval timer (Input 0). If the interval time is set as a limited value (not equal zero), it is considered that the monitor controls the zero interval by itself, and therefore, it cannot accept all the external triggers. Changing over the mode switch enables rst operation from UP20, while this operation is supported by “M” command from external control.

• Response Response is data transmit from the monitor corresponding to the above commands. Therefore, this corresponds to each command one by one. Every response has a fixed word length. The response corresponding to each command is described in detail as follows.

a) output of measurement data !A(21h 41h), concentration value, blank, blank, 0/1 !A, , , ,

The characters from ! to the error bit includes 23 characters in total. As all the characters are filled with blank in case of errors (error bit = 1), the number of characters is always 23 in any cases. The concentration value is described with 6 characters including the sign as below. ±XXXX. or ±XXX.X or ±XX.XX or ±X. XXX

Example +0000. ： in case of 0 g/m3 (N) +015.1 ： in case of 15.1 mg/L

EOP-P61-014-7-002-06E


For the pressure correction as an option in PG-620HA/MA, 5 characters are output as a pressure value such as XXXX. or 0.XXX. With no option or PL-620A, the blank for 5 characters follow.

Example 1020. ： in case of 1020 hPa

Similarly, as PG-620HA/MA has temperature correction, 5 characters are output as a temperature value such as 0XX.X or XX.XX. With PL-620A, the blank for 5 characters follow.

Example 030.2 ： in case of 30.2 degC

ⅰ 0/1 at the end means no errors (outputs 0) or errors (outputs 1) in measured data. ⅱ In the following cases, the internal data values are filled with blank and 1 at the end.

when the mode switch is not MES UP20 Err Auto Zero

b) Output of monitor internal state SA(53h 41h) , ??

The following characters are output in ??. For error state in detail, refer “8. Maintenance and Inspection (5) Error indications”

ⅰ OK : during concentration measurement ⅱ UP : during warm-up (UP20 state) ⅲ NM : when the mode switch is not MES ⅳ ZR : during auto zero operation (during analog hold) ⅴ E0-E6 : Error state

c) Acceptance of auto zero start request ZO(5Ah 4fh) in case of acceptance ZN(5Ah 4eh) in case of non-acceptance

Non-acceptance occurs if the internal state of the monitor above is in either of I - IV (UP20 - error).

d) Forced measurement start request MO(4Dh 4fh) in case of acceptance MN(4Dh 4eh) in case of non-acceptance

This command is used to omit warm-up operation(UP20) after the recovery from an instantaneous power interruption. Do not use this command in case of the recovery from a power failure over several minutes. In this case, start the measurement after the general warm-up operation. Non-acceptance occurs if the internal state of the monitor above is other than warm- up operation (UP20)

EOP-P61-014-7-002-06E


(9) Temperature correction

This function is available only for the gas phase monitor (PG-620HA/MA). The gas monitor is affected by temperature of measuring gas. Since measured value of ozone gas concentration is inversely proportional to its temperature, the monitor should automatically compensate it using signal from the temperature sensor in order to minimize measurement errors. You can decide whether conducting compensation or not by setting the compensation mode switch on the front panel. Refer to the section “4. Outline and Functional Indicators”. Temperature value is displayed on SUB-LED of the front panel and its unit is °C.

Compensation temperature range: 5 to 45°C Compensated temperature: 0°C (273K)

・・ Formula- 2

5.2 Optional functions

The followings are optional functions, not standard ones.

(1) Voltage output

This output is originally 0 to 1 V DC. As an optional, it can be changed to 0 to 10 V DC, and can be output from the terminal block at position “V0” on the rear panel. When installing the control equipment connected to the external, prevent it from being affected by the electromagnetic field. For wiring, refer to the paragraph “6.1 Use or installation (4) Wiring for control output signal”. (2) Pressure correction

This is an optional function available only for the gas phase monitor (PG-620HA/MA). When using the pressure correction as optional, you can select pressure correction, temperature and pressure correction. No limited ozone, generally an output of the gas monitor is open to the atmosphere so as to minimize errors in pressure measurement. However, in a monitor that is designed to be able to measure supplied gas, pressure may be applied to the detector. Since measured value of ozone gas concentration is inversely proportional to its pressure, the monitor should automatically compensate it using signal from the pressure sensor in order to minimize measurement errors. You can decide whether conducting compensation or not and select the compensation method by setting the compensation mode switch on the front panel. Refer to the paragraph “4.2 Functional Indicators”. Pressure value is displayed on SUB-LED of the front panel. The absolute pressure sensor is built in this monitor and its unit is hPa(ABS).

補正オゾン濃度＝未補正オゾン濃度Ｘガス温度＋２７３

２７３

Uncompensated ozone

concentration

gas temperature + 273

273

Compensated ozone

concentration

EOP-P61-014-7-002-06E


Compensation pressure range: 0 to 1961 hPa(ABS) (0 to 2 kgf/cm2(ABS)) absolute pressure Compensated pressure: 1 atmosphere (atmosphere pressure)

・・ Formula- 3

(3) Temperature/pressure correction

Pressure is compensated by combining standard temperature correction and optional pressure correction. Compensated temperature is the same as that of the paragraph “5.1 Standard functions (9) Temperature correction”, and compensated pressure is the same as above. Compensation formula is as follows:

・・ Formula- 4

(4) Ozone monitor communications software

This is data logging software. The host computer regularly obtained data from the instrument through the serial port (RS232C). The obtained data is saved as CSV format, and shown on the display. For more information, see another Instruction Manual of OZONE MONITOR CIMMUNICATION SOFTWARE (book EOP-P61-016-7-001).

Construction (1) Hardware components

① Personal computer(with the terminal that can be connected through RS232C) ② CRT or display unit with equal functions (640x480, resolution of 256 colors or more) ③ Quad-speed or more CD drive ④ Mouse

(2) Operating environment ① OS : Windows 95(OSR2.x or later), 98, NT

2000, ME, XP ② Personal computer : DOS/V compatible machine ③ Main memory : minimum 64MB ④ Free space on HDD : minimum 100MB for work area


２７３Ｘ

ガス圧力

大気圧Compensated

ozone

concentration

Uncompensated

ozone

concentration

gas temperature + 273

atmosphere

pressure

gas pressure 273


２７３

Uncompensated ozone

concentration

Atmosphere pressure

gas pressure

Compensated ozone

concentration

EOP-P61-014-7-002-06E


6. Installation and Operation

6.1 Use or installation

(1) Places where the monitor cannot be used

In order to prevent the monitor from any damage or failure and to ensure its stable operation or safety, do not install it at places shown below.

① Dusty place or any place where such corrosive gas as hydrogen sulfide gas, sulfurous acid gas or halogen gas is floating in the atmosphere

② High temperature and high humidity environments, or places where temperature drastically changes

③ Places subjected to strong or continuous vibration ④ Places subjected to direct sunlight ⑤ Places close to the source of generation of a strong electromagnetic field, electric field or a

high frequency ⑥ Danger places with insufficient space for maintenance and/or inspection of the monitor ⑦ Places in the process where explosive gas may be made up

DANGER

This monitor is not explosion-proof construction. Never use the monitor in the explosive gas atmosphere. Otherwise, it can cause explosion.

WARNING


*Notice：This product is precision measuring equipment. Do not give shocks or vibration to it. (2) Connection of sampling pipes

In the following pages, flow of gas (water) is shown for each model. Connect the pipes to the monitor correctly, referring to these examples of use.

EOP-P61-014-7-002-06E


試料ガス

④ ③⑤

⑥

⑦

排ガス

ゼロガス

ＮＯ

ＮＣ

② ①

常用圧力：0.04～0.12 MPa(G)

常用圧力：0.04～0.12 MPa(G)

大気圧

オゾンモニタ

ＰＧ－６２０ＨＡ

① PG-620HA

① Filter for sample gas ② Flow adjusting valve for sample gas ③ Filter for zero gas ④ Flow adjusting valve for zero gas ⑤ 3-way solenoid valve

⑥ Flowmeter A flow adjusting valve (needle valve) installed on the flowmeter should be full opened, and adjust flow rate with ② flow adjusting valve for sample gas and ④ flow adjusting valve for zero gas.

⑦ Cell

※ ①～④ are installed on outside (option)

Figure- 12 Figure of flow of gas (when measuring generated ozone)

Sample gas

Normal pressure:

39.2 to 78.4 kPa(G)

Zero gas

Normal pressure:

39.2 to 78.4 kPa(G)

Ozone monitor

PG-620HA

Exhaust gas

Atmospheric pressure

EOP-P61-014-7-002-06E


① By-pass valve ② Pump ③ Filter for sample gas ④ Filter for zero gas ⑤ Zero gas generator ⑥ Flow adjusting valve

⑦ 3-way solenoid valve ⑧ Flowmeter

A flow adjusting valve (needle valve) installed on the flowmeter should be full opened, and adjust flow rate with ⑥ flow adjusting valve.

⑨ Cell ※ ①～⑥ are installed on outside

Figure- 13 Figure of flow of gas (when measuring exhaust ozone gas)

試料ガス

⑤

③

⑦

⑧

⑨

排ガス

空気

ＮＯ

ＮＣ

②

①

常用圧力：±1.47 kPa(G)

オゾンモニタ

ＰＧ－６２０ＨＡ

Ｐ常用圧力：±1.47 kPa(G)

⑥

④

Exhaust gas

Normal pressure:

±1.47 kPa(G)

Sample gas

Normal pressure:

±1.47 kPa(G)

Ozone monitor

PG-620HA

Air

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② PG-620MA

① Filter for zero gas ② Filter for sample gas ③ 3-way solenoid valve

④ Flowmeter ⑤ Flow adjusting valve ⑥ Cell

⑦ Pump

Figure- 14 Figure of flow of gas (in case of PG-620 MA)

Ｐ

排ガス

試料ガス

ゼロガス

⑥

③

①

⑤

φ６またはφ１／４イ

ンチチューブ用継手

②

ＮＯ

ＮＣ

④

⑦



Exhaust gas

Joint for φ 6 mm

or φ 1/4 inch tube

Joint for φ 6 mm

or φ 1/4 inch tube Sample gas

Zero gas

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③ PL-620A

① 3-way solenoid valve ② Flowmeter ③ Flow adjusting valve

④ Cell ⑤ Bubble reducer ⑥ Flow adjusting valve ⑦ Flow adjusting valve

※ ⑥･⑦ are installed on outside (option)

Figure- 15 Figure of flow of water

(in case of PL-620 A)

For PG-620 HA, PT 1/8 inch joint should be used, and for PG-620 MA/PL-620A, φ 6 mm or φ 1/4 inch tube should be used. Considerations are described below in detail.

① Install an ozone-proof stop valve between the separated point from sample gas (water) and the inlet of the gas (water) on the monitor to ensure that sample gas (water) can be cut off and its flow rate can be adjusted. The flowmeter is convenient to confirm flow rate.

② Connect pipes to the monitor with ozone-proof materials, and minimize the piping length and bending points.

③ For zero gas (water) for PG-620HA/PL620A, use material gas (water) from the ozone gas (water) manufacturing device.

④ After measurement, process and emit gas (water) with the ozone gas (water) destructor.

①

②

③ ④



排水

試料水

ゼロ水

ＮＯ

ＮＣ

⑤

⑥

⑦φ６またはφ１／４イ




Joint for φ 6 mm

or φ 1/4 inch tube

Joint for φ 6 mm

or φ 1/4 inch tube

Joint for φ 6 mm

or φ 1/4 inch tube

Sample water

Drainage

Zero water

EOP-P61-014-7-002-06E


ＰＰ

モニタ

モニタ

モニタ

①

②

③ゼロ水

ゼロ水

ゼロ水

Figure-16 shows how to connect pipes in each case. ① When sample gas (water) has no gas pressure, use the vacuum pump.

② When sample gas has gas pressure, use it.

③ When flow rate is very large, separate pipes and measure sample gas. Select the way of either ① or ②

Figure- 16 Example of connecting pipes

*Note1： Apply sample gas (water) and adjust flow rate with the flow adjusting valve (needle valve), referring to the indication of the flowmeter. When using the vacuum pump for sampling, install the external flow adjusting valve to the outlet side. When using gas (water) pressure, install it to the inlet piping side. When measure dissolved ozone at PL -620A, it can prevent the outbreak of the bubble. When sample water has bubble, it becomes the pulse noise. When pour sample water, please remove bubble. Under other circumstance, bubble is generated in sample water when supplied sample water is much quantity, and may become the pulse noise. Therefore the flow rate should be reduced.

*Note2： When sample gas (water) has no gas (water) pressure, prepare an ozone-proof pump to vacuum sample gas (water) and a flow control valve. Install the vacuum pump and the flow control valve to the outlet of sample on the monitor. Fully turn the valves counterclockwise on the monitor and release sample gas (water). When measure dissolved ozone at PL -620A, 0.1 - 0.3L/min degree is suitable for the flow rate. When supplied sample water is much quantity, bubble is generated and may affect the measurement.

Monitor

Monitor

Monitor

Zero

water

Zero

wate

Zero water

EOP-P61-014-7-002-06E


*Note3： Please apply flow rate of the sample gas (water) to the monitor, in the case of a gas- phase monitor at 0.2-2 L/min, when there is the water pressure in PL -620A at 0.1- 0.6 L/min, when there is not the water pressure and draws it out with a pump in PL -620A at 0.1-0.3 L/min. With too little flow rate, ozone is decomposed in the piping, and correct concentration cannot be measured. Take notice of it.

*Note4： When material gas (water) is changed or gas (water) is continuously used for a long period, periodically apply no ozone gas (water) (material gas (water)) and conduct zero calibration.

*Note5： When sample water is too low (lower than 5°C) in comparison with ambient temperature at PL-620A, surface of the sample cell may make dewdrop, and it can result in disorder on the indication. In the above case, to elevate temperature of the sample water or to let down the indoor humidity is required. (When measure in such an environment, please talk with us.) (3) Power supply

When supplying the power source to the monitor, use the power source recommended to instrumentation. If inductive load and/or high-capacity load are connected to the line, a surge problem may occur, which results in failure of measurement. (4) Wiring for control output signal

The shielded wire is not always necessary for signal wiring, but using twist pair wire is safe. Do not use signal wires without shielding with power cables in conduit or open tray. Also, avoid wiring them near heavy electric machine. (5) How to connect external signals

Two of signals output from the monitor are relay contacts, and the others are isolated with the photo-coupler. TLP521 (Toshiba) or corresponding products are used, which are open collector type. Apply power to the collector through resistance R from the external power source. When signals are output, “a” point becomes “L” (low level). With normal factory default, only concentration alarm 2 systems are relay contacts. Error signals and measuring signals are output by the photo-coupler. As shown below, decide resistance R so that the output current is in the range of 1 to 10 mA. When each signal is effective, “a” point becomes “L” (low level).

① Error signal ② Measuring signal ③ Pressure alarm (when a pressure correction function is added to PG-620HA/MA

as optional)

EOP-P61-014-7-002-06E


Current i should be calculated by using the following formula.

Refer to the next paragraph “Reference”.

Figure- 17 Equivalent circuit

Reference Assign + Vcc and R values to the following formula so that current i of 1 to 10 mA flows in the monitor (photo-coupler).

・・・・・・・・・・・・・・ Formula- 5

If +Vcc equals 5V and R is 1KΩ, i of 5 mA should flow. In addition, the figure below shows an example of circuits using relay.

Figure- 18 Reference example of connect circuit

Please contact us if you have any questions about settings. Decide the limiting resistor to meet the conditions.

ｉ＝＋Ｖｃｃ

Ｒ　　　[Ａ]

＋Vccモニタ制御部

R

←ｉ

↑ａ点

コレクタ

エミッタ

Monitor control

section

Collector

Emitter

a

リレー

AGP2019

２次側１次側

＋５[Ｖ]

＋

－

ﾄﾗﾝｼﾞｽﾀ

2SA562TM

モニタ

750[Ω]

1.1[kΩ]

ﾀﾞｲｵｰﾄﾞ

1S2076 5[A]250[VAC]

Monitor

Diode 1S2076

Transistor 2SA562TM

Relay

Primary Secondary

EOP-P61-014-7-002-06E


6.2 Operation (measurement)

(1) Preparation before measurement

① Set the mode switch to MES, turn on the power, and conduct warming-up operation for about 20 minutes. The main indicator will start to count down from 2000.

② Before ozone gas (water) is generated, check the following items with only material gas (water) supplied to the monitor.

a. Set the mode switch to CK1 (sensor 1, light intensity) and check that the main indicator displays a value within 1000 to 3200. If the value is not within the range, refer to the paragraph “(4) Sensor adjustment” in the section “8. Maintenance and Inspection”, and adjust it accordingly.

b. Set the mode switch to CK2 (sensor 2, light intensity), and make sure that the value is within the same range as one of CK1.

c. Set the mode switch to MES, and confirm that the main indicator displays 0 (zero). If not, perform auto-zero operation on the front panel.

③ Apply sample gas (water) to the monitor and adjust flow rate with the flow adjusting valve (needle valve), referring to the indication of the flowmeter. When using the gas (water) pressure to emit gas, use the valve installed on the separated point from the piping and also the valve on the monitor for fine adjustment, so that piping gas pressure over the specified value (0.3MPa) is not directly applied to the monitor. When using a pump at PL-620A, it can prevent the outbreak of the bubble when open the flow adjusting valve of the monitor and adjust it at a valve of the pump side.

(2) Measurement

① Set the mode switch to MES.

② The monitor will display ozone concentration on the main indicator corresponding to the measured value and also generates its analog output of voltage or current in proportion to the concentration.

(3) Re-operation of ozone monitor

After stopping measurement (interruption of the power source), to start the measurement again, conduct warming-up operation, confirm zero point with material gas (water) flowing, and then start measurement again.

*Note： For short-period stop, restarting the monitor will change indication of concentration value at the beginning, but it will be soon returned to the same value.

EOP-P61-014-7-002-06E


WARNING

If the smell of ozone is detected, stop the instrument and check to see if there are clacked container, damaged pipes, or loosened fittings. In addition check the following points: If the smell of ozone is still detected after the above check, please contact the manufacture.




CAUTION

In the condition that the valve of the front flowmeter is completely closed with no gas (water) flowing, the inside parts are overloaded, which can cause failure.

7. Span Adjustment

This monitor is designed to keep high steady state on the electric circuit, and it is adjusted at our factory before shipping. We recommend that it is used without changing the ratio of the default span adjustment as much as possible. We are not responsible for errors of measurement values caused by changing span values. ① Correct zero point in accordance with the paragraph “(1) Preparation before

measurement” in the section “6.2 Operation (measurement)”.

② Introduce generated ozone gas (water) into the monitor.

③ As soon as the indication of the monitor has stabilized, analyze sample gas (water), set the mode switch to SPN, and adjust the indicated value on the monitor according to the results of the analysis.

In this monitor, span values are adjusted before shipping. In case that there are some deviation between the analyzed value and the measured value, apply the following formula to the present concentration indication (measured value) to adjust the span value on the front panel.

EOP-P61-014-7-002-06E


Example: Measured concentration value 12.0 mg per liter Analyzed concentration value 11.0 mg per liter

・・ Formula- 6

④ An analysis method of the ozone water includes next.

• Perform a chemical analysis; a method for the density. 1) Gather a sample to offer in a chemical analysis, and record the instructions of the monitor at the same time. 2) Chemistry analyzes the sample which gathered by iodometry or other methods and finds density.

• Method put it in a duct same as a measuring instrument (standard) that it has been analyzed and finishes proofreading confirmation, and to add density.

⑤ In this monitor, span values are adjusted before shipping. As a result of frequent span adjustment, if the default span values are not known, please refer to the inspection certificate. It describes the default span values before shipping.

*Note： The range of span adjustment for this monitor is 0.001 to 2.000, where span is adjustable with an increment of 0.1 %.

8. Maintenance and Inspection

WARNING




We shall not hold any responsibility, regardless of the warranty period, for accidents or malfunctions caused by alternation/modification of the instrument.

０．９６２（スパン校正比）Ｘ１１．０

１２．０＝０．８８２(Ratio of span adjustment)

EOP-P61-014-7-002-06E


CAUTION

Always turn off the instrument before parts are replaced. Otherwise, it can cause electric shock.

Joints for piping and each container may loosen as time goes on. Periodically inspect devices at the manufacturer.

When sealing materials such as packing used for parts are deteriorated, it can cause leakage. Periodically inspect them at the manufacturer.

(1) Inspection items

Table- 3 Inspection items Inspection item Inspection period

Light intensity of lamp (CK1)

Optionally

Zero

1. Once a day 2. When starting the

monitor after supplying power

Span Optionally

Since the light intensity of the low-pressure mercury lamp will decrease in proposition to its use time, zero point of the monitor cannot be finally adjusted, or the indication may become unstable condition. Immediately after the delivery of the monitor or just after the replacement of the low- pressure mercury lamp, the indication of CK1 mode should be adjusted within 2400 to 3200. When the lamp intensity is above 1000 approximately at CK1 mode, there is no problem. If not, replace the low-pressure lamp as soon as possible. For details, please refer to the paragraph “(3) Consumables” in the section “8. Maintenance and Inspection”. When the lamp intensity is extremely decreased, the self-diagnosis function will generate an error. It is recommended to replace the low-pressure mercury lamp, based on its total use time of 2 years.

EOP-P61-014-7-002-06E


(2) Trouble shooting Table- 4 How to deal with troubles

Trouble Cause Action

Zero adjustment is not working

1. Burn-out of mercury lamp

2. Insufficient light intensity of the mercury lamp

3. Optical cell with stain

1. Replace the low-pressure mercury lamp

2. Adjust sensor output 3. Clean up inside the cell

Indication is not steady Mercury lamp had failed Replace the mercury lampAuto zero switch was pushed by mistake when measuring

Readjust the zero point

Power switch is not working

1. Fuse had burned out 2. Power supply is

interrupted

1. Replace the fuse 2. Check value of supply

voltage

(3) Consumables

The parts below are consumables. Please replace them periodically.

① Mercury lamp The model of the mercury lamp used for this monitor is BZ103A. Please order it to us.

Figure- 19 Inside the monitor (Example: PG-620HA)

1. Be sure to turn off the power supply of the monitor and then replace it. 2. Remove four screws on the left side cover on the monitor, and take off the cover. 3. Detach the connector connected to the mercury lamp holder on the upper side of the side

surface, referring to “Figure-19”. 4. Loosen a fix screw of the mercury lamp holder and take out it. The lamp is very hot

immediately after the power is switched off. Be careful of it. 5. Insert a new lamp into the holder, tighten it with the fix screw, and then connect the

connector to the plug of the power source.

コネクタ

固定ねじ

水銀ランプホルダ

Connector

Fix screw

Mercury lamp holder

EOP-P61-014-7-002-06E


6. The low-pressure mercury lamp has the most lighted area as shown in “Figure-20”. Fasten the lamp so that the light axis should be arranged toward direction A-A'. Specifically, conduct warming-up operation for 20 minutes after the power is turned on, set the control mode switch to CK1, and then adjust the light axis by rotating the lamp to a position where the maximum value is displayed in the range of 2400 to 3200. Please refer to the next paragraph “(4) Sensor adjustment”.

Figure- 20 Cross-section of the low-pressure mercury lamp and the light distribution

(the most lighted area)

② 3-way solenoid valve When the 3-way solenoid valve used for this monitor needs to be replaced, please consult us

(4) Sensor adjustment

① When any of the following symptoms happen, sensor adjustment should be performed.

1. Immediately after installing the monitor, when the operation mode switch was set to CK1 (sensor 1, light intensity) or CK2 (sensor 2, light intensity) after sufficient warming-up operation with zero gas being applied, the indication is not within 1000 to 3200

2. When auto zero function do not fulfill to calibrate zero point of the monitor 3. When replacing the mercury lamp 4. When washing the optical cell

② Adjusting method

1. Be sure to turn off the power and then remove the cover installed on the left side of the monitor.

2. Set the mode switch to MES, turn on the power, and conduct warming-up operation for about 20 minutes.

3. Supply zero water into the ozone monitor. 4. Set the mode switch to CK1, and turn a trimmer VR1 for sensor 1 on the sensor board

(SLAV 1 – PCB in “Figure-21”) which is located on the upper side of the lamp holder, till the indication value becomes within 1000 to 3200 (in case of a new lamp, it is 2400 to 3200).

90

1800

270

光量分布

ランプ外壁

ＡＡ’

光軸方向

ランプ内隔壁

Direction of

light axis

Partition inside

the lamp

Outside wall

of the lamp

Light

distribution

EOP-P61-014-7-002-06E


5. Set the mode switch to CK2, and like the above step 4, turn a trimmer VR2 for sensor 2, till the indication value becomes within 1000 to 3200 (in case of a new lamp, it is 2400 to 3200).

6. Set the mode switch to MES. 7. Perform to calibrate zero point of the monitor. 8. Confirm that concentration indication is zero. 9. Switch off the power of the ozone monitor.

Figure- 21 Internal board

*Note1： Before conducting sensor adjustment, never fail to supply zero gas (water). When it is done while sample gas (water) is being supplied, the adjustment is impossible or abnormal measurement values are displayed. *Note2： Use zero gas (water) based on material gas (water). (5) Error indications

When a problem is detected inside the monitor by the self-diagnostics function, an error message occurs. Details of errors are described below. When an error occurs, EX is displayed on the main LED, and also an error signal from the terminal board becomes active. That is a blank. Only in MES mode, this indication is output. Error messages for external units continue to output unless cancelled. In other mode, the indication itself is preferentially displayed. When an error occurs, monitor output signal MES (measuring signal) becomes inactive.

① E0 This message appears when the measured signal value is in excess of the range of display (in case of overflow). The monitor continues to work. When the measured value is within the range of display, it returns to normal condition. If not, perform auto zero operation manually.

② E1 This message appears when it is judged that the light intensity for sensor 1 has decreased, although the light intensity for sensor 2 is normal. Specifically, it is output when the light intensity for sensor 1 becomes 1/8 or less as compare with one of sensor 2. The monitor continues to work, and it is possible to use the analog data. When the light intensity has been recovered, the display automatically returns to normal condition with regard to the measurement. When sensor 1 has any problem, this error occurs.

VR1

VR2

ＨＡＲＥ

5038-603SLAV1-PCB

EOP-P61-014-7-002-06E


③ E2 When calibrating zero point (when sucking zero gas (water)), this message appears when it is judged that the light intensity for sensor 2 has decreased, although the light intensity for sensor 1 is normal. This error occurs when the optical cell becomes dirty, or when sensor 2 has any problem. Specifically, when calibrating zero point (when sucking zero gas (water)), it is output when the light intensity for sensor 2 becomes 1/8 as or less compare with one of sensor 1. The monitor continues to work, and it is possible to use the analog data. When the light intensity has been recovered, the display automatically returns to normal condition with regard to the measurement.

④ E3 This message appears when it is judged that the light intensity has decreased for both sensors 1 and 2. It is displayed when the mercury lamp does not light up. Specifically, this appears when their indications are displayed to be about 512 or less, at MODE switch CK1 and CK2. The monitor continues to work, and when the light intensity has been restored, it shifts to warming-up mode (UP20).

⑤ E4 This message is output when internal setting switches are not set correctly. It appears when they have been set to any impractical mode under existing conditions. In this case, it returns to normal condition by resetting the switches or others correctly and by turning off and then turning on the power.

⑥ E5 This message appears when users set conditions incorrectly. For example, when intervals have been set to be less than the zero gas (water) sucking time x 2 (analog hold time), or when the alarm setting has exceeded the full scale value, it appears. Moreover, if internal related parameters are changed, the alarm value exceeds the full scale value, which can make the message to be E5. In this case, it returns to normal condition by resetting the time correctly.

⑦ E6 This error occurs in the following two patterns:

ⅰ When data in the memory has disappeared ⅱ Input range over occurred in the A/D converter, for example: ・When an internal cable is not connected ・When pressure beyond specifications is applied to the monitor ・When the light intensity is adjusted incorrectly after replacing the lamp, when he lamp does not light up, or when the light intensity of the lamp has decreased

When E6 occurs, verify the light intensity in the check mode. When the ozone monitor has temperature and pressure corrections, check temperature and pressure values in your monitor. It recognizes E6 when they exceed the following values:

・When sensor 1 or sensor 2 is in about 250 or less or over 4000 ・When gas temperature is 0°C or less or over 85°C ・When the absolute pressure sensor is used and it is under the pressure of over 0.43MPa (ABS) (4.4kgf/cm2)

EOP-P61-014-7-002-06E


Check the above mentioned again. If there is no abnormal condition but the monitor does not still return to normal operation by turning off and turning on the power, please contact us.

Table- 5 Trouble shooting table

9. Warranty

Our products are warranted for 12 months from the date of delivery. However, note that the following cases are not covered by this warranty.

Following failures or damages occurred within the warranty period.

① Failure caused by misuse. ② Failure caused by inappropriate repair or modification using non-genuine parts. ③ Failure or damage occurred during transportation or by drop after delivery. ④ Failure or damage resulting from fire, brine, gas, earthquake, wind, flood, lightning,

abnormal voltage or other natural disasters. ⑤ Failure caused by degradation of consumable parts (packings or seals).

Well, we can not warrant you for defects of the related devices, injury of human body and your any loosed profits even if when their in and out of guarantee terms.

Others

(1) Contact the dealer when repair is needed. (2) This instrument is repaired at our side after it is sent from the user. (3) The minimum storage period of repair parts and necessary parts for this instrument is

seven years after discontinuation of the instrument's production. * The “repair parts and necessary parts” stated here means the parts required to keep

the product performance. (4) The coverage of warranty for any event that has not occurred in the past is discussed

as it arises.

The specification may have to change without its announcement for improving and remodeling the equipment.

Display Confirmation item Action

E0 Confirm the light intensity, temperature and pressure values.

E1 E2

Calibrate zero point, supplying zero gas (water). When it does not still return to normal condition, please consult us.

E3 Verify the light intensity.

Replace the mercury lamp.

E4 Necessary to confirm the internal setting switches.

Reset these switches to the correct positions.

E5

Verify the outside settings, such as: ・INT time and PUR time ・Concentration ALM value ・Pressure ALM value

Set each value to its correct one again.

E6 Confirm the light intensity. If the lamp and each sensor have no problem, please consult us.

EOP-P61-014-7-002-06E


MEMO

荏原実業株式会社

計測器・医療本部

計測器営業部東日本営業課：215-0033

神奈川県川崎市麻生区栗木2丁目3番12号 TEL 044-981-0560 FAX 044-981-0561 E-mail ej-ozone＠ejk.co.jp

西日本営業課：541-0046 大阪市中央区平野町3丁目2番13号平野町中央ビル5階 TEL 06-6231-3528 FAX 06-6231-2929 E-mail ozon-osaka＠ejk.co.jp 技術部：215-0033

神奈川県川崎市麻生区栗木2丁目3番12号 TEL 044-981-0560 FAX 044-981-0561 E-mail ejozndsn1＠ejk.co.jp

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