Appendix A Technical Specifi Cations - Michell Instruments Liquidew I.S. User Manual

Liquidew I.S. User's Manual
Appendix A Technical Specifi cations
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
Michell Instruments
Michell Ceramic Moisture Sensor
Easidew PRO I.S.
0.001 to 1000 ppm Higher range on request
W
Actual range dependent on solubility of sample fl uid
-100 to +20°Cdp (-148 to +68°Fdp)
±1°C between –59.9 & +20°Cdp
(±1.8°F between -75.9 to +68°Fdp)
±2°C between –60 & -100°Cdp
(±3.6°F between -76 to -148°Fdp)
±10% of reading
±20% of reading
0.1°C between +20 and -100°Cdp (+68 and-148°Fdp)
Pt100
-20 to +70°C (-4 to +158°F)
Accuracy ±0.2°C
Up to 5 MPa (50 barg / 725 psig)
0 to +50°C (32 to +122°F)
Min 0.01 l/min (0.003 GPM), Max 10 l/min (2.64 GPM))
0.1 to 0.3 l/min (0.026 to 0.079 GPM) recommended
Traceable to British (NPL) and American (NIST) National Humidity
Standards
Two line 6-digits LED, displaying moisture content / dew point (user
toggle) and temperature
Two 4-20 mA (max load 500 Ω) - user confi gured for parameter, unit
and range.
Output 1 = 21mA when a high or low error occurs.
Output 2 = 3mA for a low error and 21mA for a high error.
RS485 Modbus RTU
Moisture content (ppm
W
Dew point (°C or °F)
Temperature (°C or °F)
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 10A / 240 V AC or 8A / 24 V DC Non-
inductive load
Two Form A contacts rated 5A / 240 V AC or 4A / 24 V DC Non-inductive
load
Galvanic isolation type, integrated to Control Unit
85 to 265 V AC 47/63Hz or 10 to 72 V DC
10 W max power consumption
)
, 0.1°C temp
W
APPENDIX A
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