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Dew-Point Hygrometer - Michell Easidew Advanced Online

Updated:2025-03-13

Brand: PST/Michell
Model: Easidew Advanced Online
Description: Easy to install and configure, the versatile touch screen Easidew Advanced Online Hygrometer can measure and display dew point, moisture content, and pressure. This display provides analog, digital, a
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Product Details

Dew-Point Hygrometer - Michell Easidew Advanced Online Description：

Product Manual

Moisture measurement online dew-point meter with pressure compensation

Features

Measurement range -110...+20 °C (-166...+68 °F) dew point

Dew point or moisture content output

Accuracy ±1 °C (±1.8 °F) dew point

Pressure indication and compensation

Touch screen reconfiguration

3 x 4...20 mA outputs and 4 relay outputs

Modbus RTU over RS485 output

Choice of AC or DC Power Supply

Sample block and cable included

Traceable 13-point calibration certificate

Easy to install and configure, the versatile touch screen Easidew Advanced Online Hygrometer can measure and display dew point, moisture content, and pressure. This display provides analog, digital, and 4 programmable relay alarm outputs with a front screen or software app display configuration.

With high performance 1% accuracy for use in Compressed Air and Gas Generation applications.

Specification

Performance Specifications
Measurement Range	-110...+20 °C (-166...+68 °F) dew point; -100...+20 °C (-148...+68 °F) dew point
Accuracy *	±1 °C from -60 to +20 °C dew point (±1.8 °F, -76...+68 °F dp) ±2°C from -100 to -60 °C dew point (±3.6 °F, -148...-76 °F dp)
Response Time	5 mins to T95 (dry to wet)
Repeatability	0.5 °C (0.9 °F) dew point
Sensor Calibration	Traceable 13-point calibration certificate
Auxiliary Pressure Input	45 MPa (450 barg/6527 psig) maximum
Pressure Compensation	Live 4...20 mA pressure transmitter or fixed programmable value
Moisture Content Scales	Automatic compensation for ppm_V, lbs/MMscf, g/m³ units
Relay Alarm Type/Rating	2 x Form A, 2 x Form C 30 V DC 5A Namur compliant programmable relay contacts for process and fault conditions
Electrical Specifications
Sensor Input Signal	Modbus RTU over RS485
Online Output Signals	3 x 4...20 mA channels; Modbus RTU over RS485; 4 programmable relay alarms
Online Outputs	Dew point, Moisture Content, Pressure
Maximum Analog Output Scaled Range	Dew point: -110...+20 °C (-166...+68 °F); Moisture content in gas: 0...3000 ppm_V
Online Supply Voltage	85...265 V AC; 18...30 V DC
Online Power Consumption	AC Power: 7.5 VA DC Current: 170 mA @24 V DC
Electrical Safety	BS/EN61010-1: 2010
Operating Specifications
Operating Temperature	Sensor: -40...+60 °C(-40...+140 °F); Process Monitor: 0...50 °C (+32...+122 °F)
Compensated Temperature Range	Sensor: -20...+50 °C (-4...+122 °F); Process Monitor: not applicable
Storage Temperature	Sensor: -40...+60 °C (-40...+140 °F); Process Monitor: 0...+60 °C (+32...+140 °F)
Operating Pressure	45 MPa (450 barg/6527 psig) maximum
Sensor Flow Rate	1...5 Nl/min mounted in standard sampling block; 0...10 m/sec direct insertion
Mechanical Specifications
Ingress Protection	Sensor: IP66 in accordance with standard BS EN 60529:1992+A2:2013; NEMA 4 protection in accordance with standard NEMA 250–2014 Process Monitor: IP54 & NEMA Type 2 & 12K front panel only
System Materials	Sensor & Sample Block: 316 stainless steel Process Monitor: UL Rated ABS - EpsotechAB AN2 V0
Dimensions	Sensor: L=119 x ?27 mm / L=4.69” x ?1.06” (no connector cable) Process Monitor: 1/8 DIN Case, 90 x 40 x 92 mm / 3.54 x 1.57 x 3.62” (w x h x d) Sample Block: 55.2 x 30 mm / 2.17 x 1.18”
Filter (Sensor Protection)	Standard: HDPE <10μm Optional: 316 stainless steel sintered guard <80μm
Sensor/Sample Block Process Connections	G1/2” BSP, 3/4” 16 UNF, 5/8” 18 UNF
Sample Block Inlet/Outlet Connections	1/8” NPT
System Weights	Sensor 150 g (5.29 oz); Sample Block 250 g (8.82 oz); Process Monitor 280 g (9.88 oz)
Sensor Electrical Connections	Easidew M12: M12 5 pin (A Coded)
Online Sensor Cable	2, 5, 10 meter (6.5, 16.4, 32.81 ft) connector/cable available
Display Type	LCD touch screen 320 x 240 pixel
NOTES * Over Compensated Temperature Range