Michell Instruments Liquidew I.S. User Manual page 42

APPENDIX A
Appendix A Technical Specifications
Sensors
Sensor Technology
Sensor Version
Measurement Range
Calibration Range
Dew point:
Accuracy
Moisture
content:
Resolution
Temperature Measurement
Temperature Measurement
Range
Temperature Measurement
Accuracy
Analysis Pressure
Analysis Temperature
Sample Flow Rate
Calibration
Control Unit
Display
Analog Output
Digital Output
Display Mode
Display Resolution
Alarms
I.S. Barriers
Power Supply
Enclosure
Operating Environment
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Michell Ceramic Metal-Oxide Moisture Sensor
Easidew PRO I.S.
0.001...1000 ppm Higher range on request
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Actual range dependent on solubility of sample fluid
-100...+20 °Cdp (-148...+68 °Fdp)
±1 °C from -59.9 to +20 °Cdp
(±1.8 °F from -75.9 to +68 °Fdp)
±2 °C from -60 to -100 °Cdp
(±3.6 °F from -76 to -148 °Fdp)
±10% of reading
±20% of reading
0.1 °C from +20 to -100 °Cdp (+68...-148 °Fdp)
Pt100 with 4...20 mA transmitter
-20...+70 °C (-4...+158 °F)
Accuracy ±0.2 °C
Up to 5 MPa (50 barg / 725 psig)
0...+50 °C (32...+122 °F)
Minimum 0.01 l/min (0.003 GPM), Maximum 10 l/min (2.64 GPM))
0.1...0.3 l/min (0.026...0.079 GPM) recommended
Traceable to British (NPL) and American (NIST) National Humidity
Standards
2.8" color touch screen LCD, displaying moisture content / dew point
or O and analysis temperature
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Three 4...20 mA (max. load 500 Ω) user-definable outputs
RS485 Modbus RTU
Moisture content (ppm
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Dew point (°C or °F)
Temperature (°C or °F) % or ppm
0.1 °Cdp, 0.1 °Fdp, 0.01 ppm
Four alarm relays. Control action and set point are user programmable
Two Form C contacts rated 30 V DC, 5A
Non-inductive load
Two Form A contacts rated 30 V DC, 5A
Non-inductive load
Galvanic isolation type, integrated to Control Unit
85...265 V AC 47/63Hz or 18...28 V DC
30 V A maximum power consumption
19" sub rack unit
Dimensions: 132 x 483 x 375mm (5 x 19 x 14.75") (h x w x d)
(100mm (4") minimum rear clearance depth for cables and vents)
Indoor, safe area, 0...+50 °C (+32...+122 °F), < 90 %rh
Liquidew I.S. User Manual
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, 0.1 °C temp, 0.01 % / 0.5 ppm
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97092 Issue 6, July 2022
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