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Dew Point Sensor – A Series

USD $1,255USD $2,195

Dew point transmitter with Alumina-Oxide sensor for compressed air and gases. 

Pressure Dew Point (PDP) Range
-80°C to +20°C (-112°F to +68°F)
-100°C to +20°C (-148°F to +68°F)

Gas Pressure Range
up to 50 bar (725 psi)

Dryer Types
Desiccant, Membrane, drum or hybrid dryers

Gas Quality
Minimal contaminates (ie minimal oil, particles or water vapour)

Accuracy
Dew point measurements
• -80°C to +20°C: ±2%
• -100°C to -80°C: ±3%
Temperature measurements: ±0.5 °C
Pressure @ 23°C (optional): ±0.3% FS

Measure
Pressure dew point (PDP), Relative Humidity and Temperature
Optional – Pressure measurement (requires integrated pressure sensor).

Display
Optional 1.5” LCD Touch screen

Output
Modbus (RS485) and 4-20mA

Power requirement
10 to 30 VDC, max 50 mA @ 24 VDC

Alarm
Alarm relay is optional – requires the touch screen display

Sensor Technology
Aluminium-Oxide sensor

Application
Manufacturing and industrial use
Temporary or permanent installation

Accessories
Extra M12 connectors and data cables are available on the Accessories page

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SKU: DEA Categories: , Tag:

The A Series Dew Point Transmitter is our mid-range sensor. It uses an Alumina-Oxide capacitor to measure dew point, pressure, temperature and pressure dew point of compressed air and inert gases (argon, carbon dioxide, carbon monoxide, helium, hydrogen, nitrogen and oxygen). The A Series Dew Point Transmitter is suitable for dew point ranges of -100°C to +20°C (-148°F to +68°F).

The sensor is available with an in-built display or without a display. The display option includes an alarm relay and allows you to adjust the dew point settings (gas type, measurement units, modbus and 4-20mA settings, etc). 

Best suited to

  • Compressed air and gas systems to 4 Mpa (600psi)
  • Membrane, drum, hybrid or desiccant dryers
  • Dew point range of -100°C to +20°C (-148°F to +68°F)
  • Temporary or permanent installation 

Key features of the Dew Point Transmitter

  • Alumina-Oxide sensor technology
  • Dew Point Measurement Range:
    • -80°C to +20°C (-112°F to +68°F)
    • -100°C to +20°C (-148°F to +68°F)
  • Accuracy +/- 2°C (down to -80°C)
  • Fast response time
  • Modbus and 4-20mA outputs
  • Measure:
    • Pressure Dew Point (PDP)
    • Gas temperature
    • Relative humidity
    • Pressure (optional)
  • Optional in-built Display and alarm relay

Important

  • A minimum flow rate of > 1L/min is required for the sensor to read accurately
  • The sensor must be installed in an upright position, after the dryer.
  • Incorrect wiring or installation can damage the sensor and void the warranty. If you aren’t sure how to install or wire the sensor, please contact us. Full installation and wiring instructions are available in the User Manual

Dew Point Transmitter comes with

  • Measurement Chamber with adjustable silencer and removable Nitto type quick connect
    (contact us for other measurement chamber options)
  • M12 connector (data cable optional)
  • Calibration certificate
  • User Manual
  • 12 month warranty

Options for the Dew Point Transmitter

  • Dew Point Range: 
  • Integrated pressure sensor: 0 to 17 bar (242 psi)
  • In-built Display
  • 5 meter data cable
  • Gas Types: Air, Argon, Carbon Dioxide, Carbon Monoxide, Helium, Hydrogen, Nitrogen, Oxygen
  • Contact us for other measurement chambers or cable lengths.

Warranty & Calibration

12 month warranty

Calibration is recommended every 2 years (provided the sensor is not exposed to relative humidity above 85%).
Annual calibration is required if the sensor is exposed to relative humidity above 85%.

Technical Documents

User Manual

Quick Installation Guide

Product Flyer

Adjust Modbus Settings

Accessories

Accessories such as mechanical and electrical fittings are available on the Accessories page.

Other information

Part Numbers:

  • Standard Dew Point Sensor (no display): DEA010001, DEA020001, DEA110001, DEA120001, DEA010011, DEA020011, DEA110011, DEA120011
  • Dew Point Sensor with Display: DEA011001, DEA021001, DEA111001, DEA121001, DEA011011, DEA021011, DEA111011, DEA121011

Please refer to our Terms and Conditions of Sale.

Weight 1 kg
Dimensions 23 × 16 × 10 cm

Specifications

General

Technology

Alumina-Oxide Technology

Dryer Types

Compressed air and gas systems up to 4 MPa (600 PSI)

  • Desiccant dryers 
  • Membrane dryers 
  • Drum dryers 
  • Refrigerant dryers
  • Hybrid dryers

Gases

Air, Argon, Carbon Dioxide, Carbon Monoxide, Helium, Hydrogen, Nitrogen, Oxygen

Accuracy

Dew Point (-80°C to +20°C): ±2°C
Dew Point (-100°C to -80°C): ±3°C

Temperature: ±0.5°C

Pressure: ±0.3% full scale (at 23°C), ±0.01 bar/10°C

Note: the accuracy of the sensor is affected by on-site conditions.
Contaminants such as oil, moisture, particles or other impurities can affect the calibration and accuracy of the sensor.

Minimum Gas Flow Required

> 1 litre per minute

Measurement Ranges

Dew Point Measurement Range

  • -80°C to +20°C  |  -112°F to +68°F
  • -100°C to +20°C  |  -148°F to +68°F)

Pressure Measurement Range

  • 0 to 50 bar (no integrated pressure sensor)
  • 0 to 17 bar if using the integrated pressure sensor

Gas Temperature Measurement Range

  • -40°C to +100°C
  • -40°F to +212°F

Output

Outputs

  • Analogue: 4 to 20mA (3 wire)
  • Digital: RS485 Modbus / RTU

Modbus Output Signals

  • Pressure Dew Point (PDP)
  • Relative Humidity
  • Temperature and
  • Pressure (if using the integrated pressure sensor)

Analogue Output Signals

  • Pressure Dew Point (PDP) only

Alarm Relay

Standard Dew Point Sensor (no display)

  • Alarm Relay not available

Dew Point Sensor with Display

  • Normally open, 32vDC / 500 mA

Power Supply

Power

Standard Dew Point Sensor (no display)

  • 10 to 30VDC / max 50 mA + 4-20mA Current output

Dew Point Sensor with Display

  • 16 to 30 VDC / max 150 mA + 4-20mA Current output

Electrical Connection

Standard Dew Point Sensor (no display)

  • 1 x 5 pin M12

Dew Point Sensor with Display

  • 2 x 5 pin M12

EMC

According to IEC 61326-1

Other Information

Display

Standard Dew Point Sensor (no display)

  • No Display

Dew Point Sensor with Display

  • 1.5” LCD Touch screen

Measurement Chamber

Measurement Chamber with adjustable silencer and removable Nitto type quick connect

Contact us for other measurement chamber options

Ambient Temperature Range

  • -20°C to +70°C
  • -4°F to +158°F

Relative Humidity

0 to 95% RH

Process Connection

G1/2” thread

Contact us for UNF process connection

Dimensions

Standard Dew Point Sensor (no display)

  • 135 mm L x 35 mm W
  • 5.3″ L x 1.4″ W

Dew Point Sensor with Display

  • 148 mm L x 67 mm W
  • 5.8” L x 2.6” W

Casing

Standard Dew Point Sensor (no display)

  • Stainless Steel

Dew Point Sensor with Display

  • Anodised Aluminium

IP Rating

IP65

Installation Type

Permanent installation, or
Temporary installation

Calibration Frequency

  • Every 2 years (provided the sensor is not exposed to relative humidity above 85%).
  • Annual calibration is required if the sensor is exposed to relative humidity above 85%.

Warranty Period

12 months

Downloads

Installation Manual

Product Flyer

Quick Install Guide

Change Sensor Settings

User Manual - Dew Point Sensor - A Series Dew Point Sensor Flyer - A Series Dew Point Sensor - Quick Installation Guide CAA Service Software