04_PR1626 Instruction Manual E

Sartorius Hamburg GmbH , Meiendorfer Str. 205, D 22145 Hamburg, Germany Tel: +49.40.67960.303 Fax: +49.40.67960.383

Intrinsically safe load cell interface

PR1626/60

Instruction manual

Instruction manual 9499 050 62613 Third edition 05.11.2004

Please note In correspondence concerning this instrument, please quote the type number and serial number as given on the type plate. Bitte beachten Bei Schriftwechsel über dieses Gerät wird gebeten, die Typennummer und die Gerätenummer anzugeben. Diese befinden sich auf dem Typenschild an der Rückseite des Gerätes. Noter s.v.p. Dans votre correspondance et dans vos réclamations se rapportant à cet appareil, veuillez toujours indiquer le numéro de type et le numéro de série qui sont marqués sur la plaquette de caractéristiques. Important As the instrument is an electrical apparatus, it may be operated only by trained personnel. The maintenance may be carried out only by qualified personnel. Wichtig Da das Gerät ein elektrisches Betriebsmittel ist, darf die Bedienung nur durch eingewiesenes Personal erfolgen. Die Wartung darf nur von geschultem, fach- und sachkundigem Personal durchgeführt werden. Important Comme l'instrument est un équipement électrique, le service doit être assuré par du personnel qualifié. De même, l'entretien est à confier aux personnes suffisamment qualifiées.

INSTRUCTION MANUAL PR1626/60

Sartorius 1

List of Contents 1 DESCRIPTION.......................................................................................................................................................2

2 SAFETY INSTRUCTIONS.........................................................................................................................................4

2.1 Explosion Protection ........................................................................................................................................... 4 2.2 Initial Inspection .................................................................................................................................................. 4 2.3 Before Commissioning........................................................................................................................................ 4 2.4 Maintenance & Repair........................................................................................................................................ 4 2.4.1 Failure & excessive stress ......................................................................................................................................................5 2.4.2 Static sensitive components ................................................................................................................................................5 2.4.3 Replacing fuses.........................................................................................................................................................................5

3 TECHNICAL DATA.................................................................................................................................................6

3.1 Performance Characteristics & Specifications............................................................................................ 6 3.2 General Data.......................................................................................................................................................... 6 3.3 Supply...................................................................................................................................................................... 6 3.4 Interface To The Hazardous (Ex-) Area.......................................................................................................... 6 3.4.1 Supply voltage output ...........................................................................................................................................................6 3.4.2 Measuring voltage output (from the load cells) ...........................................................................................................7 3.4.3 Sense voltage input (from the load cells)........................................................................................................................7 3.5 Interface To The Normal (Safre) Area............................................................................................................ 7 3.5.1 Measuring voltage output (to the indicator/transmitter) .........................................................................................7 3.5.2 Sense voltage output (to the indicator/transmitter)...................................................................................................7 3.6 Enviromentals ....................................................................................................................................................... 7 3.7 Electromagentic Compatibility ........................................................................................................................ 8 3.8 Dimensions & Weights ....................................................................................................................................... 8 3.9 Approvals................................................................................................................................................................ 8

4 MOUNTING & CONNECTIONS ..............................................................................................................................9

4.1 Mounting................................................................................................................................................................ 9 4.2 Connections .........................................................................................................................................................10 4.2.1 Potential equalization......................................................................................................................................................... 11 4.2.2 Terminal allocation............................................................................................................................................................... 12

5 SETTINGS.......................................................................................................................................................... 13

5.1 Opening the instrument ..................................................................................................................................13 5.2 Settings .................................................................................................................................................................14 5.2.1 Interface Unit (PCB 2) ......................................................................................................................................................... 14

6 MAINTENANCE ................................................................................................................................................. 15

6.1 General ..................................................................................................................................................................15 6.2 Fuses.......................................................................................................................................................................15

7 FIGURES/INTERCONNECTION EXAMPLE .............................................................................................................. 16

8 EC-TYPE EXAMINATION CERTIFICATE ............................................................................................................... 18

PR1626/60 INSTRUCTION MANUAL

2 Sartorius

1 DESCRIPTION The PR1626/60 is an intrinsically safe interface unit. It has been designed to interface load cells situated in a hazardous (Ex) area with a weighing indicator/transmitter situated in a safe area. It is classified to be an associated apparatus (with intrinsically safe circuits) and complies with class [EEx ib] IIB and IIC. The Certificate of Conformity has the PTB-Number Ex-91.C.2098 X, it is to be found under paragraph 8. The unit can be used for weighing applications as well for all other applications which require this kind of intrinsically safe interfacing. This is achieved by use of double provided current and voltage limiters in the supply circuit and barriers in the measuring and sense circuits of the PR1626/60.

The unit provides the intrinsically safe interfacing of: - 1 voltage output for the supply of e.g. load cells situated in a hazardous (Ex)-area, - 1 measuring voltage input from the hazardous (Ex)-area, - 1 sense voltage input from the hazardous (Ex)-area. This is achieved by use of double provided current and voltage limiters in the supply circuit and barriers in the measuring and sense circuits of the PR1626/60. In addition the PR1626/60 has an approval in conjunction with Sartorius indicators: PR1612/02, PR1613, PR1713, PR5210, PR5510, PR5610 & PR5710.


Sartorius 3

The load cell supply voltage can be set to: Either nominal 12V DC / 80 mA e.g. for the connection of 4 load cells of 650 each, connected in parallel (162.5 ¥) or nominal 7.5 V DC/ 92 mA e.g. for the connection of 8 load cells of 650 each, connected in parallel (81,3 ¥) or for the connection of 4 load cells of 350 each, connected in parallel (87.5 ¥). The housing of the PR1626/60 contains provisions for wall or rail mounting. The interface can be supplied by either a 24 V DC or a 24 V AC power supply unit. Connections are to be made via screw terminals up to 4mm2. Terminal PE must be connected to the potential equalization system, which has to be installed and earthed according to VDE 0100 and its part 540, or/and acc. to respective local regulations.


4 Sartorius

2 SAFETY INSTRUCTIONS

2.1 Explosion Protection

The instrument fulfils the basic requirements of EN 50014 and EN 50020. It complies with the requirements for ignition protection class II(2)G [EEx ib]II B/C and has the type approval certificate number PTB 02 ATEX 2056. This approval number is printed on one side of the instrument. A copy of the approval can be looked up in chapter 8 of this manual. This instrument has been supplied in a safe condition. The following important information and warnings must be followed by the user in order to ensure a safe operation and to maintain the instrument in a safe condition.

2.2 Initial Inspection

Check the contents of the shipment for completeness and note whether any damage has occurred during transport. If the contents are incomplete, or there is damage, a claim should be filed with the carrier immediately, and the local organisation of Sartorius should be notified in order to facilitate the repair or replacement of the instrument.

2.3 Before Commissioning

Before putting the instrument into operation after storage or transport, visually check it for physical damage. Mounting, installation, and earthing: Mounting, installation, earthing and interconnection of the instrument must always comply with the requirements stated in the Certificate of Conformity. Over and above this, it has to comply with the local NATIONAL rules for the installation of electrical systems in hazardous areas (in Germany e.g. acc. to VDE 0165). For installation and connection refer to paragraph 4, to the application drawings of this manual, and observe the required environmental conditions as stated in the technical data.

CAUTION Terminal PE must be connected to the potential equalization system.

Before actual commissioning, the system has to be tested by a person who is authorized by the local authority to perform such a test.

2.4 Maintenance & Repair

Repairs can only be carried out at Sartorius Hamburg GmbH, Hamburg and are subject to checking. In case of defect or functional trouble, please, contact your local Sartorius organization for repair. When returning the instrument for repair, an exact and complete fault description must be supplied with the defective instrument.


Sartorius 5

Maintenance work may be carried out only by a trained technician aware of the involved hazards, whereby the relevant precautions must be taken in account.

2.4.1 Failure & excessive stress

If the instrument is suspected of being unsafe, take it out of operation permanently. This is the case when the instrument - shows physical damage - does not function anymore - is stressed beyond the tolerable limits (e.g. during storage and transportation)

2.4.2 Static sensitive components

The instrument contains electrical components which are sensible to damage from static discharge. Therefore it is strictly forbidden to open the instrument, as also unintentional touch of components can destroy them.

2.4.3 Replacing fuses

Fuses shall only be renewed by a qualified person who is aware of the hazard involved. The apparatus must be disconnected from all voltage sources when a fuse is to be renewed, or when the apparatus is to be adapted to different mains voltages.


6 Sartorius

3 TECHNICAL DATA

3.1 Performance Characteristics & Specifications

Properties expressed in numerical values with stated tolerances are guaranteed by the manufacturer. Specified non-tolerance numerical values indicate those that could be nominally expected from the mean of a range of identical instruments. This specification is valid after the instrument has warmed-up for at least 0.5 hours (reference temperature 23°C).

3.2 General Data

Type PR1626/60 Order number 9405 316 26601 Ex approval II(2)G [EEx ib ] II B/C Number PTB 02 ATEX 2056 MTBF 35000 hours Accuracy 3000 d according to OIML class III in conjunction with Sartorius

weighing instruments of types PR16../.., PR17../..., PR5210/.., PR5510/.., PR5610/.., PR5710/..

3.3 Supply

Connection two wire, via 4mm2 screw terminals Earth connection via 4mm2 screw terminal PE (see also paragraphs 2.3 and 4.2.1.) Nominal voltage by either 24 V DC, or 24 V AC Tolerance range DC = 18..33 V, AC = 18..28 V Power consumption 3.8 W, 6.6 VA at 24 V Frequency 50/60 Hz, ± 2 Hz Electrical safety class I, acc. to IEC 348, and/or VDE 100 part 410, and VDE 804

3.4 Interface To The Hazardous (Ex-) Area

A blue coloured block with 15 screw terminals of up to 4mm2 is provided for all 2 connections to the Ex-area.

3.4.1 Supply voltage output

Max. load 81 ¥ Voltage settable to either ±6 V DC ≤ 80 mA nominal, or ± 3.75 V DC ≤ 92 mA

nominal. Both symmetrically to ground. Symmetry ≤ 24 mV Tolerance range ± 5.5 V...± 6.3 V DC; ± 3.25 V...± 3.95 V DC Max. current ≤ 110 mA short circuit Tk +8 mV/K at ± 6 V, +3 mV/K at 3.75 V. Connection via two 4mm2 screw terminals.


Sartorius 7

3.4.2 Measuring voltage output (from the load cells)

Vmeas. (max) 37.2 mV (differential) Connection via two 4mm2 screw terminals.

3.4.3 Sense voltage input (from the load cells)

Vsense (max) either ± 6 V nominal (with ref. to ground), or ± 3.75 V nominal (with ref. to ground).

Connection via two 4mm2 screw terminals.

3.5 Interface To The Normal (Safe) Area

A black coloured block with 15 screw terminals of up to 4mm2 is provided for all 2 connections to the safe area.

3.5.1 Measuring voltage output (to the indicator/transmitter)

Vmeas. (max) 37.2 mV (differential) Tk0 ≤ 0.05 µV/K (at 0..+40°C and 1mV/V) TKSpan ≤ 5 ppm/K (at +23°C, 30000d and 1mV/V) Connection via two 4mm2 screw terminals.

3.5.2 Sense voltage output (to the indicator/transmitter)

Vsense (max) either ± 6 V nominal (with ref. to ground), or ± 3.75 V nominal (with ref. to ground).

Connection via two 4mm2 screw terminals.

3.6 Enviromentals

The following environmental data are valid only if the instrument is checked in accordance with the official checking procedure. Details of these procedures and failure criteria are supplied on request from the local organization of Sartorius Hamburg GmbH. Ambient temperature, reference value +23°C Nominal operating temperature range -10°C ... +55°C

0°C ... +40°C (for 3000 d) Limit range for storage and transport -40°C ... +70°C Relative humidity: Reference range 45 ... 75 % } Nominal operational range 20 ... 80 % } Operational limits 10 ... 90 % } Limits for storage and transport 5 ... 95 % }

no condensation

Warming-up time approx. 30 min Mounting position any. The instrument is designed for either wall- or

railmounting. Electrical safety class I, acc. to IEC 348, and/or VDE 100 part 410, and

VDE 804 Protection class acc. to IP 20 (DIN 40050)


8 Sartorius

Housing lower part macrolon 8020, upper (connection) part macrolon 2800.

Interference voltage acc. DEUTSCHE-POST-VERORDNUNG VfG 1064; Amtsblatt Nr. 163/1984(VDE 0871, limit value class B)

3.7 Electromagentic Compatibility

Static discharges acc. IEC 801-2, level 3 (8 kV with 5 mJ) Resistance to irradiation: Electrical fields 100 kHz...500 MHz at 10 V/m,

500 MHz...1 GHz at 1 V/m. Magnetic fields 60 A/m at 50 Hz Mains voltage sags 100 % with 10 ms

50 % with 20 ms 20 % with 50 ms

Rapid low-energy transients: Amplitude 2000 V } Rise time 5 ns } Duration 100 ns }

positiv/negativ

High-energy transients to power line: Amplitude 2000 V } Rise time 100 ns } Duration 10 µs }

positiv/negativ

Burst to data lines: Amplitude 2000 V } Rise time 5 ns } Duration 50 ns }

acc. to IEC 801-4

Burst to data lines: Amplitude 1000 V } Rise time 5 ns } Duration 50 ns }

acc. to IEC 801-4

3.8 Dimensions & Weights

Dimensions H = 75 mm, D = 110 mm, W = 100 mm Weights net = approx. 500 g

gross = approx. 1000 g

3.9 Approvals

Ex approval II(2)G [EEx ib] II B/C PTB 02 ATEX 2056


Sartorius 9

4 MOUNTING & CONNECTIONS

4.1 Mounting

The instrument is suitable for mounting in any position. Before mounting, the instructions in paragraph 2.3 have to be observed. It can • either be wall mounted by means of two screws (acc. to DIN 46121 and 43660), • or be fixed to a 35 mm rail acc. to DIN 46277 and 50022.


10 Sartorius

4.2 Connections

• All screw terminals of the blue coloured block are provided for the connections to the Exarea. • All screw terminals of the black coloured block are provided for the connections to the safe area. • The screw terminals for interfacing and terminal PE are provided for 4mm2 at maximum. • The screens of the cables are to be connected on the shortest way to the respective screw terminals.

In intrinsically safe lines with a cable length of ≥ 50 m, the screen of the cables may only be connected at one end to the potential equalization line. In non-intrinsically safe lines the screen of the cables may generally be connected only at one end to the potential equalization system (see sketch below).

To avoid any danger in the event of wires becoming loose and moving into the intrinsically safe connection area of the module causing short circuiting, all wires of the safe side have to be secured together in a cable harness.


Sartorius 11

4.2.1 Potential equalization

According to VDE 0165/6.80, potential equalization is to be ensured within an intrinsically safe installation, especially in hazardous areas of zone 0 and 1. Otherwise impermissible sparking can occur between the particular conducting parts. Therefore terminal PE of the PR1626/60 must be connected to the potential equalization system, which has to be installed and earthed according to VDE 0100 and its part 540, or/and acc. to respective local regulations.

(1) Conductor for additional potential equalization Leiter für zusätzlichen Potentialausgleich Conducteur pour une liaison équipotentielle additionnel

≥ 2,5mm² Cu

(2) Conductor for potential equalization Potentialausgleichsleiter Conducteur de liaison équipotentielle

≥ 4mm² Cu

(3) Conductor for potential equalization Potentialausgleichsleiter Conducteur de liaison équipotentielle

≥ 10mm² Cu

(4) Main conductor for potential equalization Hauptpotentialausgleichsleiter Conducteur principale de liaison équipotentielle

≥ 10mm² Cu

(5) Earthing conductor Erdungsleiter Conducteur de terre

≥ 10mm² Cu

(A) Sub potential equalization terminal Potentialausgleichsklemme (-schiene) Borne (barre) de liaison équipotentielle (B) Main potential equalization terminal Hauptpotentialausgleichsschiene Barre principale de liaison équipotentielle (E) To earth electrode Zum Haupterder (Elektrode) Vers la prise de terre


12 Sartorius

4.2.2 Terminal allocation


Sartorius 13

5 SETTINGS Opening and setting of the instrument may only be done after having switched-off the supply voltage, and by observing the instructions as given in paragraph 2.

5.1 Opening the instrument

Upon delivery from the factory the instrument is not completely closed. Sliding of the electronic part into the housing will be prevented by a small sponge, which only has to be removed after setting and connecting the instrument. When closed, and one needs to get access to the inside, the instrument must be opened carefully by spreading out slightly the side parts of the housing, without breaking them. This can be done by using e.g. a small screwdriver. As soon as the little plastic noses become released pull out the upper part.

After opening, the Power Supply Unit (PCB 1), and the Interface Unit (PCB 2) become visible. Both PCBs are fixed to each other by means of 3 bolts and interconnected via flat cable connection.


14 Sartorius

5.2 Settings

5.2.1 Interface Unit (PCB 2)

The Interface Unit can be set by means of the following solder-links which are situated at the component side of the board: MX 7 : Reserved for factory-internal adjustments. MX 8 : Supply voltage to the load cells Closed: 7,5 V DC nominal, if 80 ¥ ≤ RLC < 150 ¥ Open:

(delivery state) 12 V DC nominal, if RLC > 150 ¥

Type of the connected instrument Closed: for PR1612/00, PR1612/01, PR 614/01 and PR1615

MX 12:

Open: (delivery state)

for PR1612/02, PR1613/.., PR1713/.., PR5210/.., PR5510/.., PR5610/.. and PR5710/..


Sartorius 15

6 MAINTENANCE

6.1 General

It is recommended to check the module for proper functioning from time to time. In case of a fault • check the connections for possible loose contacts • check fuses and replace them if necessary • check the supply voltage for correct value • observe the maximum loading of inputs/outputs. In doing so, the safety instructions in paragraph 2 must be followed. Should the module be subject to failure, call the Customer Support of your local organization of Sartorius for assistance.

6.2 Fuses

All fuses belong to those parts which influence the intrinsic safety of the PR1626/60. Before exchanging when defective • it is a must to evaluate the reason of the defect, and • to observe the instructions in paragraph 2. • make sure that only fuses with the given nominal current and of the given type are used. Using repaired fuses and/or short-circuiting the fuse holder is strictly forbidden. Fuses shall only be renewed by a qualified person who is aware of the hazard involved. The power supply unit PCB1 is protected by a medium time delayed 450mA fuse, fixed by a holder. The interface unit PCB2 is protected as follows: • Each line of the measuring input by 1 medium time delayed 32mA fuse, each fixed by a holder, • Each line of the sense voltage input by 1 medium time delayed 32mA fuse, each fixed by a holder.


16 Sartorius

7 FIGURES/INTERCONNECTION EXAMPLE


Sartorius 17


18 Sartorius

8 EC-TYPE EXAMINATION CERTIFICATE


Sartorius 21

Sartorius Hamburg GmbH Meiendorfer Straße 205 22145 Hamburg, Germany Tel.: +49.40.67960.303 Fax: +49.40.67960.383 www.sartorius.com © Sartorius Hamburg GmbH All rights are strictly reserved Printed in Germany

Date post:	26-Oct-2015
Category:	Documents
Upload:	tree
View:	195 times
Download:	16 times

04_PR1626 Instruction Manual E

Documents