Easidew PRO I.S.

 Intrinsically Safe Dew-Point Transmitter
The Easidew PRO I.S. is a rugged instrinsically safe 2-wire dew-point transmitter for trace moisture measurement in liquids and gases. It is certified for use in IS Class 1 Div 1 Groups A,B,C and D, Ex II 1G EX ia IIC T4 and I.S. I 1 ABCD T4 (Ta = +60°C) hazardous area locations.

Simple Operation
The Easidew Pro I.S. is easy to install and operate. It requires a 12 to 28 V DC supply and provides a linear 4-20 mA signal representing moisture content.


Caractéristiques produits

  • ±1°C accuracy
  • Moisture in gases or liquids capability
  • 2-wire connection
  • Output configurable in ppmV and ppmW moisture content
 Easidew PRO I.S.

Spécifications techniques
Performance
Measurement Range (dp) -100 to +20°Cdp
Accuracy (dew point) ±1°Cdp (+20 to -60°Cdp)
±2°Cdp (-60 to -100°C)
Response Time 5 mins to T95 (dry to wet)
Repeatability 0.5°Cdp
Electrical output/input
Output Signal 4-20 mA (2-wire connection, current source)
User configurable over range
Output Dew point, moisture content for ppmV, ppmW
Output Range Dew point: -100 to +20°C
Moisture content in gas: 0-3000 ppmV
Moisture content in liquid: 0-3000 ppmW
Supply Voltage 12–28 V DC
Load Resistance Max 250 Ω @ 12 V; 500 Ω @ 24 V
Current Consumption Max 23 mA depending on output signal
Saturation Constants (for moisture in liquids measurements only) 6-point look-up table for saturation constants up to 3000 ppmW over the temperature range 0 to +50°C
Saturation constants for 8 common liquids can be programmed into the Easidew PRO I.S. via the application software
Alternatively the user can program saturation constants manually.
Operating conditions
Operating Humidity 0–100% RH
Operating Temperature -40 to +60°C
Operating Pressure 45 MPa (450 barg) max
Flow Rate 1 to 5 l/min mounted in standard sampling block
0 to 10 m/sec direct insertion
Mechanical specification
Hazardous Area Certificates ATEX - Ex II 1G EX ia IIC T4
FM - I.S. I 1 ABCD T4 (Ta = +60°C)
CSA - IS Class 1 Div 1 Groups ABCD T4
IECEx – EX ia IIC T4 (-20°C ≤ Ta ≤ +60°C)
Ingress Protection IP66 in accordance with standard BS EN 60529:1992
NEMA 4 in protection accordance with standard NEMA 250-2003
Housing Material Stainless steel
Filter 80µm sintered guard
HDPE Guard <10 µm (optional)
Weight 1.27kg
Electrical Connections Screw terminal, M20 x 1.5mm
Fault conditions (factory programmed)
ConditionOutput
Sensor fault23 mA
Under-range dew point4 mA
Over-range dew point20 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

Applications
Aerospace  Automotive  Compressed Gas  Environment  General Gases  General Engineering  Military / Defense  Natural Gas & Petrochemicals  Power Generation  Process Industries

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