Dew Point Sensors...Dew Point Sensor - Product Catalogue December 2019 6 Product Selector Compressed...

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Compressed Air Alliance

Dew Point Sensors

Product Catalogue

December 2019

Dew Point Sensor - Product Catalogue December 2019

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Table of Contents

General Information ....................................................................................................................................... 3

Introduction ..................................................................................................................................................... 4

Product Selector .............................................................................................................................................. 6

Dew Point Sensor - Q Series .......................................................................................................................... 7

Dew Point Sensor - ADC Series ..................................................................................................................... 9

Dew Point Sensor - K Series ........................................................................................................................ 11

Dew Point Sensor – Mini Series .................................................................................................................. 13

Options ........................................................................................................................................................... 15

Default Modbus Settings ............................................................................................................................. 16


3

General Information

How to Order

Product codes in this catalogue list the most

common combinations for that item,

however other combinations may be

available. Please contact us if you require a

configuration that isn’t listed in this

catalogue.

To order sensors and/or accessories, please

email [email protected]

with:

• Your name and contact details

• The 9-digit product code(s) for items you

would like

• The quantity of each item

• Any special requirements or instructions.

OEM and Private Label

Compressed Air Alliance can offer private

label (your brand) and OEM versions of the

products contained within this catalogue.

Please contact Compressed Air Alliance to

discuss your requirements.

Become a Dealer

Please contact Compressed Air Alliance if you

are interested in becoming a dealer or

reseller of our products.

Contact us

You can contact Compressed Air Alliance by:

• Phone (Australia): 1300 558 526

• E-mail: [email protected]

• Website:

www.compressedairalliance.com

Warranty

Compressed Air Alliance provides a 12-month

warranty for all Dew Point Sensors. The

warranty covers material and workmanship

under the stated operating conditions from

the date of delivery.

If faults occur during the warranty period we

will repair or replace the defective unit,

without charge. The warranty covers the

device only, it does not cover other services

such as labour to remove or reinstall the

instrument, transport or packing. Warranty

repairs or replacements do not extend the

original period of warranty.

The following damage is excluded from this

warranty: (i) improper use and non-

adherence to the user manual, (ii) use of

unsuitable accessories and (iii) external

influences (e.g. damage caused by vibration,

damage during transportation, excess heat

or moisture).

The warranty is cancelled when one of the

following situations occurs:

• The user opens the measurement

instrument without a direct request.

• Repairs or modifications are undertaken

by third parties or unauthorised persons.

• The serial number has been changed,

damaged or removed.

Other claims, especially damage occurring on

the outside of the instrument (eg dents,

marks), are not included in the warranty

unless responsibility is legally binding.

mailto:[email protected]

mailto:[email protected]

http://www.compressedairalliance.com/


4

Introduction

When it comes to monitoring compressed air

systems, nothing offers a better payback

than a dew point sensor. Once you have

moisture in your system, everything becomes

a problem. If you have ever had this occur,

you'll know the problem occurred days

before you discovered it and it took even

longer to dry out after it was fixed.

Most people don't think of dew point sensors

as providing efficiency, but wet compressed

air will do irreparable damage to

components, create reliability issues

throughout your entire plant and allow

bacteria, rust and corrosion to build up in

your system. Once there it’s extremely

difficult to rectify and component failures will

go on for years.

If you have a system running a

desiccant dryer or with a specified purity

requirement, then you are already

demonstrating your dew point is a critical

component of your system and should be

under continuous monitoring.

Indicators on refrigerant dryers don’t

measure dew point

The indicator on your refrigerant dryer is

exactly that, an indicator, it is not measuring

the dew point entering your plant. It is only

measuring the refrigerant gas that is cooling

to the desired temperature. Any number of

issues before and after your dryer can lead to

the dew point deteriorating and they will not

be shown on the dryer indicator.

Benefits of monitoring dew point

• Improves system reliability

• Reduces product contamination risks

• Reduces system maintenance

• Reduces operating and energy costs

• Reduces risk of rust and corrosion build

up

• Improves dryer reliability

• Improves filter life and performance

• Reduces risk of bacteria, fungus and yeast

build up

• Alerts you to changes in dryer

performance before moisture appears in

your plant

Easy to install and low maintenance

Compared to your compressed air system,

dew point sensors are cheap, easy to install

and have low maintenance requirements.

They are the most cost effective sensor

purchase you are ever likely to make.

Key Features of Dew Point Sensors

All Compressed Air Alliance dew point

sensors come with:

• Fast response time

• Up to four output signals:

o Pressure Dew Point (PDP)

o Relative Humidity

o Temperature

o Optional integrated pressure

transducer (excluding Mini Dew

Point sensors)

• Two outputs as standard

o Modbus (Digital)

o 4-20mA (Analogue)

• Measurement Chamber (with optional

fittings)


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• Optional 5m Cable or Connector

• Multiple Gas options

• Up to 4 Mpa (600psi)

• Accuracy +/- 2°C

• IP65 rated

• Strong contamination resistance

Accuracy

The accuracy of the sensor is regulated by

the on-site conditions. Parameters such as

oil, high humidity or other impurities can

affect the calibration and furthermore the

accuracy.

Calibration requirements

Dew point sensors are calibrated before

delivery. Dew point sensors require

calibration every 2 years (provided the sensor

is not exposed to relative humidity above

85%). Compressed Air Alliance can arrange

calibration for you.

Permanent and temporary solutions

All dew point sensors are available for

temporary or permanent installations.


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Product Selector

Compressed Air Alliance offers four dew point sensors to suit various dew point ranges and dryer

types.

• The Q series is ideal for desiccant dryers with extremely dry dew points (-110°C to +0°C).

• The ADC Series is designed for desiccant dryers with low dew points (-80°C to +20°C).

• Both the K series and Mini series can be used on desiccant dryers operating above -50°C

or refrigerant dryers. The mini is smaller than the K series and comes with either an

aluminium or stainless steel casing.

Q Series ADC Series K Series Mini Series

Technology Quartz

Polymer with

auto drift

correction (ADC)

Polymer Polymer

Compact Design

Dryer Types - up to 4 Mpa (600psi)

Desiccant dryers (above -50°C) (above -50°C)

Membrane dryers

Refrigerant dryers

Measuring Ranges

Dew point range -110°C to +0°C

-166°F to +32°F

-80°C to +20°C

-112°F to +68°F

-60°C to +60°C

-76°F to 140°F

Operating Pressure range 0 to 16 bar 0 to 50 bar

Gas Temperature range -40°C to +100°C

-40°F to +212°F

Ambient temperature

range

-20°C to +70°C

-4°F to +158°F

-30°C to +70°C

-22°F to +158°F

Output Signals

Pressure dew point (PDP)

Relative Humidity

Gas Temperature

Optional integrated

pressure transducer

Analogue output (4-20mA)

Digital output (Modbus)

Installation Type

Permanent installation

Temporary installation


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Dew Point Sensor - Q Series

For desiccant dryers with dew point between -110°C to +0°C

Next Generation Quartz

Sensing Technology

The most advanced quartz technology dew point sensor

available. Comes with M12 connector and

measurement chamber (range of fittings available).

Optional integrated pressure sensor and data cable.

Best suited to:

✓ Compressed air and gas systems to 4 Mpa (600psi)

✓ Desiccant dryers

✓ Extremely dry dew points, down to -100°C PDP

(-148°F)

✓ Dew point range -110°C to +0°C (-166°F to +32°F)

✓ Optional 0 to 16 bar pressure transducer

✓ Permanent or temporary installation

Product Prefix

Integrated Pressure Sensor

0 - No

1 - Yes

Connector & Cable

1 – M12 Connector Only

2 – M12 with 5M Cable

Measurement Chamber

1 - 1/4” Female Threads, No fittings

2 - 1/2” Quick coupling (Nitto type), Adjustable Silencer

Please contact us for other measurement chambers

1 0 0 1 D E 1 Q 2

Gas Type

1 – Air

2 – Oxygen

3 – Nitrogen

4 – Hydrogen

5 – Carbon Monoxide

6 – Carbon Dioxide

7 – Argon

8 – Helium

9 – Other gas (please specify)

Product Code


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Specifications

Dew Point Sensor - Q Series

Technology Advanced Quartz Technology

Dryer Type Desiccant dryers up to 4 Mpa (600psi) or

Membrane dryers up to 4 Mpa (600psi)

Dew Point Range -110°C to +0°C -166°F to +32°F

Output Signals

Pressure Dew Point (PDP), Relative Humidity, Temperature

and

Optional integrated pressure transducer

Gases Air, Argon, Carbon Dioxide, Carbon Monoxide, Helium,

Hydrogen, Nitrogen, Oxygen

Accuracy ±2°C

Operating Pressure Range 0 to 16 bar

Temperature Measuring Range -40°C to +100°C -40°F to +212°F

Ambient Temperature Range -20°C to +70°C -4°F to +158°F

Output Analogue: 4 to 20mA (3 wire)

Digital: RS485 Modbus / RTU

Power Supply 16…30V / 30 mA + 4-20mA Current output

IP Rating IP65

Casing Stainless Steel

Electrical Connection 5 pin M12, female

(see Wiring Diagram for more information)

Measurement Camber

1/4” Female Threads, No fittings, or

1/2” Quick coupling (Nitto type) with Adjustable Silencer

(Please contact us for other measurement chambers)

Dimensions 135 mm L x 35 mm W

Installation Type Permanent installation, or


Calibration Frequency Every 2 years

Wiring Diagram

Modbus RTU Data +

+12-30vDC 4-20mA Output

0 vDC

Modbus RTU Data-


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Dew Point Sensor - ADC Series

For desiccant dryers with dew point of -80°C to +20°C

Auto Drift Correction (ADC)

technology

This new generation polymer dew point sensor has

auto drift correction (ADC) technology which ensures

accuracy and consistency of readings down to -80°C (-

112°F). Comes with measurement chamber (range of

fittings available) and electrical connection (M12)

options. Optional integrated pressure sensor and data

cable.

Best suited to:


✓ Desiccant dryers

✓ Dew point of -80°C to +20°C (-112°F to +68°F)



Product Prefix


0 - No

1 - Yes

Connector & Cable



Measurement Chamber


2 – 1/2” Quick coupling (Nitto type), Adjustable Silencer


1 0 0 1 D E 1 H 2

Gas Type

1 – Air

2 – Oxygen

3 – Nitrogen

4 – Hydrogen



7 – Argon

8 – Helium


Product Code


10

Specifications

Dew Point Sensor – ADC Series

Technology Polymer with Auto Drift Correction (ADC)

Dryer Type Desiccant dryers up to 4 Mpa (600psi) or


Dew Point Range -80°C to +20°C -112°F to +68°F

Output Signals


and




Accuracy ±2°C







Auto Drift Correction Power 16…30V / 250 mA

IP Rating IP65




Measurement Camber








Wiring Diagram

Modbus RTU Data +


0 vDC

Modbus RTU Data-


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Dew Point Sensor - K Series

For refrigerant or desiccant dryers with dew point of

-60°C to +60°C

This precision dew point sensor is suitable for both

refrigerant and desiccant dryers. Its polymer technology

provides strong contamination resistance. Comes with

M12 connector and measurement chamber (range of

fittings available) options. Optional integrated pressure

sensor.

Best suited to


✓ Refrigerant or desiccant dryers



✓ Economical sensor


Product Prefix


0 - No

1 - Yes

Connector & Cable



Measurement Chamber

1 – 1/4” Female Threads, No fittings

2 – 1/2” Quick coupling (Nitto type), Adjustable Silencer


Range

1 - -60°C … +20°C

2 - -60°C … +60°C

2 2 0 1 D E 1 K 2

Gas Type

1 – Air

2 – Oxygen

3 – Nitrogen

4 – Hydrogen



7 – Argon

8 – Helium


Product Code


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Specifications

Dew Point Sensor – K Series

Technology Polymer

Dryer Type

Refrigerant dryers up to 4 Mpa (600psi) or

Desiccant dryers up to 4 Mpa (600psi) or


Dew Point Range -60°C to +60°C -76°F to 140°F

Output Signals


and




Accuracy ±2°C







IP Rating IP65




Measurement Camber








Wiring Diagram

Modbus RTU Data +


0 vDC

Modbus RTU Data-


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Dew Point Sensor – Mini Series

Compact sensor for refrigerant or desiccant dryers

Stainless

Steel Casing

Aluminium

Casing

This compact dew point sensor is suitable for both

refrigerant and desiccant dryers. Its polymer technology

provides strong contamination resistance. Comes with

M8 connector, cable and measurement chamber (range

of fittings available).

Best suited to

✓ Small spaces


✓ Refrigerant or desiccant dryers


✓ Most economical sensor


Casing Material

1 - Aluminium

2 - Stainless Steel

Product Prefix Measurement Chamber


2 - 1/2” Quick coupling (Nitto type), Adjustable Silencer


Range

1 - -60°C … +20°C

2 - -60°C … +60°C

1 0 0 1 D E 2

Gas Type

01 – Air

02 – Oxygen

03 – Nitrogen

04 – Hydrogen



07 – Argon

08 – Helium


M 2

Product Code


14

Specifications

Dew Point Sensor – Mini Series

Technology Polymer

Dryer Type

Refrigerant dryers up to 4 Mpa (600psi) or

Desiccant dryers up to 4 Mpa (600psi) or


Dew Point Range -60°C to +60°C -76°F to 140°F

Output Signals Pressure Dew Point (PDP), Relative Humidity and Temperature

(Note: No pressure output signal)



Accuracy ±2°C







IP Rating IP65

Casing Stainless Steel or

Aluminium



Measurement Camber


1/2” Quick coupling (Nitto type), Adjustable Silencer






Wiring Diagram

Modbus RTU Data -

Modbus RTU Data +

0 vDC

4-20mA Output

+12-30vDC


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Options

All dew point sensors have the following options.

Gas Types

The dew point sensor is suitable for the following gas types: Air, Oxygen (O2), Nitrogen (N),

Hydrogen (H), Carbon Monoxide (CO), Carbon Dioxide (CO2), Argon (Ar), Helium (He)

Pressure Transducer

Option to have an integrated pressure transducer as part of the dew point sensor.

Note: Dew Point Mini’s do have this option.

Connection

The standard connection and cable options are shown below. Other connectors and cables

available on request.

Measurement Chamber

The standard measurement chamber options are shown below. Other measurement chambers

available on request.

M12 female connector with 5m cable, IP67

or

M12 straight type female

connector, Plastic, IP67

Stainless steel measuring chamber. G1/2"

sensor connection, G1/4" Inlet/Outlet

connection

Stainless steel measuring chamber. G1/2"

sensor connection. Inlet: Self close quick

connector (Compatible with NITTO 20SM

SS SG). Outlet: Flow control valves with

silencer

or


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Default Modbus Settings

All dew point sensors use the following default Modbus settings. Settings can be changed to suit

system requirements on request.

Default Modbus RTU (RS485) Settings

Address Baud Rate Frame / Parity

/ Stop Bit

Response

Time Response Delay Frame Spacing

1 9600 8 / N / 1 1 Sec 0 Milliseconds 7 Characters

Modbus Registers

Holding

Register Address Data Type Byte Length Description Unit

Read /

Write

1 0 FLOAT 4 Temperature ºC or

ºF Read

3 2 FLOAT 4 Relative

Humidity %RH Read

5 4 FLOAT 4 Pressure Dew

Point

ºCtd or

ºFtd Read

Optional integrated pressure sensor - ADC, K and Q Dew Point sensors only

21 20 FLOAT 4 System Pressure KPa, Mpa,

Bar, PSI Read

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Dew Point Sensors...Dew Point Sensor - Product Catalogue December 2019 6 Product Selector Compressed...

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