Simple to install and maintain, the Easidew transmitter series measures dew point and moisture content and is available with a range of process connections and electrical connectors. All Easidew models are available with service exchange program which reduces the cost of maintenance.

Michell’s Advanced Ceramic Moisture Sensor technology based transmitter is calibrated to international standards and is delivered with a traceable calibration certificate.

Product Features

  • Measurement ranges -110 up to +20°Cdp
  • Dew point or ppmV moisture content output
  • 2-wire loop power connection
  • Accuracy ±2°Cdp
  • Traceable calibration certificate
  • Power supply 12 to 28 V DC
  • Easidew I.S. IECEx, cCSAus, FM and ATEX approvals
  • Low cost of ownership and easy maintenance with sensor exchange program
  • 316 Stainless steel sensor and sample blocks
  • 5/8” UNF, 3/4” UNF, G 1/2” process connections
  • MiniDIN 43650, M12 electrical connectors
  • Oxygen Service Cleaned

3D CAD files (Step)

  • Includes
    • Easidew 5/8 UNF
    • Easidew 34 3/4 UNF
    • Easidew M12 5/8 UNF
    • Easidew M12 3/4 UNF
    • Easidew M12 G1/2
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Technical Specifications

Easidew, Easidew M12 and Easidew 34 TransmitterEasidew I.S. Transmitter
Performance Specifications
Measurement range–110 to +20°C dew point; –100 to +20°C dew point; non standard ranges available on request
Accuracy±2°C dew point*
Response time5 mins to T95 (dry to wet)
Repeatability0.5°C dew point
CalibrationTraceable 13 point calibration certificate
Electrical Specifications
Output signal4–20 mA (2-wire connection, current source); User configurable over range
Easidew M12: Modbus RTU over RS485
OutputDew point or moisture content
Analog output scaled rangeDew point: –110 up to +20°C; Moisture content in gas: 0– up to 3000 ppmV;
Supply voltage12 to 28 V DC
Load resistanceMax 250 Ω @ 14 V (500 Ω @ 24 V)
Current consumption23 mA max, depending on output signal
CE conformityApproved
UL61010-1 & CAN/CSA C22.2 No. 61010-1
Operating Specifications
Operating temperature-40 to +60°C
Compensated temperature range-20 to +50°C
Storage Temperature-40 to +60°C
Operating pressure45 MPa (450 barg) maximum
Flow rate1 to 5 Nl/min mounted in standard sampling block; 0 to 10 m/sec direct insertion
Mechanical Specifications
Ingress protectionIP66 in accordance with standard BS EN 60529:1992; NEMA 4 protection in accordance with standard NEMA 250–2003
Easidew M12: IP65
Intrinsically safe area certificates
ATEX: II 1 G Ex ia IIC T4 Ga (-20 to +70 °C) IECEx: EX ia IIC T4 Ga (-20 to +70 °C) TC TR@ 0Ex ia IICT4 Ga (-20 to +70 °C) FM: Class I, Division 1, Groups A B C D, T4 CCSAUS: Class I, Division 1, Groups A B C D, T4
Oxygen service Optional: cleaned for enriched oxygen
Housing material316 stainless steel
DimensionsMiniDIN 43650 form C L=132mm x ø45mm (with connector cable)
Easidew M12: M12 5 pin L = 155mm x ø45mm (with connector cable)
Filter (sensor protection)Standard: HDPE <10μm
Optional: 316 stainless steel sintered guard <80μm
Process connectionEasidew: 5/8” - 18 UNF
Easidew 34: 3/4” - 16 UNF
Easidew M12: 5/8” -18 UNF, 3/4” - 16 UNF, G1/2” BSP
5/8” -18 UNF, 3/4” - 16 UNF, G1/2” BSP
Electrical connectionsEasidew: MiniDIN 43650 form C
Easidew M12: M12 5 Pin (A coded)
MiniDIN 43650 form C
Mating Electrical ConnectorsMating connector supplied as standard
Easidew M12: optional 0.8, 2, 5 metre M12 A coded connector/cable available
Diagnostic conditions (factory programmed)Conditions
Sensor fault
Under-range dew point
Over-range dew point
23 mA
4 mA
20 mA
Approved galvanic isolators
NOTES * Over Compensated Temperature Range

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