Easidew Dew Point Transmitter

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Simple to install and maintain, the Easidew sensor is a moisture meter measuring dew point and moisture content and is available with a range of process connections and electrical connectors. All Easidew dew-point transmitters are available with a service exchange program which reduces the cost of maintenance.

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

	Easidew, Easidew M12 and Easidew 34 Transmitter	Easidew 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 time	5 mins to T95 (dry to wet)
Repeatability	0.5°C dew point
Calibration	Traceable 13 point calibration certificate
Electrical Specifications
Output signal	4–20 mA (2-wire connection, current source); User configurable over range Easidew M12: Modbus RTU over RS485
Output	Dew point or moisture content
Analog output scaled range	Dew point: –110 up to +20°C; Moisture content in gas: 0– up to 3000 ppm_V;
Supply voltage	12 to 28 V DC
Load resistance	Max 250 Ω @ 14 V (500 Ω @ 24 V)
Current consumption	23 mA max, depending on output signal
CE conformity	Approved
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 pressure	45 MPa (450 barg) maximum
Flow rate	1 to 5 Nl/min mounted in standard sampling block; 0 to 10 m/sec direct insertion
Mechanical Specifications
Ingress protection	IP66 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 _CCSA_US: Class I, Division 1, Groups A B C D, T4
Oxygen service	Optional: cleaned for enriched oxygen
Housing material	316 stainless steel
Dimensions	MiniDIN 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 connection	Easidew: 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
Weight	150g
Electrical connections	Easidew: MiniDIN 43650 form C Easidew M12: M12 5 Pin (A coded)	MiniDIN 43650 form C
Mating Electrical Connectors	Mating 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 Output 23 mA 4 mA 20 mA
Approved galvanic isolators		KFD2-CR-EX1.20200 KFD2-CR-EX1.30200 KFD0-CS-EX1.50P KFD0-CS-EX2.50P KFD2-STC4-EX1.H MTL5041 MTL5040
NOTES * Over Compensated Temperature Range

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Datasheet Easidew 2019.4.6 0.3 MB