Liquidew EExd Moisture in Liquids Analyzer

The Liquidew EExd offers complete trace moisture measurement, applying a robust sensor technology to provide direct, accurate, on-line measurements for moisture dissolved in process liquids. Purpose designed explosion-proof analyzer provides single-or dual-channel measurements, convenient display interface and easy installation for new projects and retrofits to existing plants.

Product Features

  • EExd flameproof certified - IECEx, ATEX, CCSAUS and TC TR Ex
  • Complete hazardous area installation
  • Single or dual-channel measurements
  • 0.001 ppmW to saturation range capacity
  • Pre-programmed and user-entered saturation concentration values
  • Remote global access options
Liquidew EExd

Technical Specification

Main Unit
Measurement Parameters
Channel Configuration Single and dual channel
Moisture Content ppmw
Temperature °C and °F
Water Dew Point °C and °F
Sample Flow Rate Status indication: Low-Good-High (<0.1 to >0.3 l/min)
Sensor Technology
Moisture Sensor Technology Michell Ceramic Moisture Sensor
Calibration Range -100 to +20°Cdp
Measurement Range -120 to +30°Cdp (0.001 ppmw to saturation)
Accuracy Dew point: ±1°C between -59.9 & +20°Cdp
Moisture content: ±10% of reading
Dew point: ±2°C between -60 & -100°Cdp
Moisture content: ±20% of reading
Analysis temperature: Accuracy ±0.2°C
Resolution 0.1°C between +20 and -80°Cdp
1°C between -80 and -100°Cdp
Temperature coefficient Algorithm compensation (-20 to +50°C)
Operating Pressure Max. 80 barg (1160 psig)
Sample Flow Up to 1 l/min (0.1 - 0.2 l/min recommended)
Keypad/Interface Capacitive touch-screen through glass
Display Vacuum fluorescent
Datalogging A rolling maximum of 150 data logs is available
Each log records time, date, moisture and temperature values for each channel
5 minutes minimum and 60 minutes maximum logging intervals can be set by the user
Communications and Output Two non-isolated 4-20 mA per measurement channel
500 Ω maximum load
Range and parameter settable by user
Modbus RTU @ 9600 baud-rate
Alarms: two volt free contacts per channel; one process value and one instrument status
Also available via Modbus communications
Type Flameproof EExd
Construction Cast copper-free aluminium (IP66/NEMA 4)
Finish Chromate primer, Polyester P9010 powder coated (black). Meets BS3900
Sample Connections 1/8” NPT (ATEX / IECEx) or 1/4” NPT (CSA)(female)
Weight 22.5kg
Operating Supply Voltage 90 to 260 V AC, 50/60 Hz, 180 W Main Unit
Operating Environment -20 to +60°C up to 95% RH
Indoor or Outdoor, shaded location
Hazardous Area Certification ATEX: II2G Exd IIB + H2 Gb T5 (-40°C to 44°C) T4 (-40°C to +60°C)
IECEx:Exd IIB + H2 Gb T5 (-40°C to +44°C) T4 (-40°C to +60°C)
cSAus: Class I, Division 1, Groups B, C, D, T5 (Tamb -40°C to +44°C) T4 (Tamb -40°C to +60°C)
TR CU 012: 1Exd IIB + H2 GB T5 (Tamb -40°C to +44°C) T4 (Tamb -40°C to +60°C)
Pattern Approval GOST-R, GOST-K

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