The Easidew PRO XP transmitter is designed to reliably and accurately measure dew point or moisture content in a wide variety of gas or liquid process applications. The robust mechanical design minimises installation time and provides a robust and reliable transmitter for all global explosion and flameproof applications.

Product Features

  • Measurement ranges -110 up to +20°Cdp
  • Global explosion / flameproof certification
  • Accuracy ±1°Cdp
  • 2-wire 4-20 mA output
  • Traceable 13-point calibration certificate
  • 6500 psig pressure rating
  • 3/4” UNF industry standard process connection
  • EN 10204 3.1 material certification
  • Moisture in gases and liquids
  • Integral display meter
  • Electronics Conformal Coating
  • Oxygen Service Cleaned

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Technical Specifications

Easidew PRO XP for Gases Easidew PRO XP LQ for Liquids
Performance Specifications
Measurement Range -110 to +20°C dew point; -100 to +20°C dew point0 to 1000 ppmW;
Non-standard available on request
Accuracy ±1°C dew point (+20 to -60°C); ±2°C dew point (-60 to -110°C)
Response Time 5 mins to T95 (dry to wet)
Repeatability 0.5°C dew point
Calibration Traceable 13 point calibration and certificate
Electrical Specifications
Output Signal 4-20 mA (2-wire connection, current source); User configurable over range
Output Dew point or moisture content Moisture content
Analog Output Scaled Range Dew point: -110 to +20°C
Moisture content in gas: 0-3000 ppmV
Non-standard:mg/m3, lbs/MMSCF natural gas
Moisture content in liquid: 0-1000 ppmW
Non-standard available on request
Supply Voltage 14 to 28 V DC
Load Resistance Max 250 Ω @ 14 V (500 Ω @ 24 V)
Current Consumption 23 mA max, depending on output signal
Saturation Constants
(for moisture in liquids measurements only)

6-point look-up table for saturation constants up to 1000 ppmW over the temperature range 0 to +50°C; Saturation constants for 8 common liquids can be programmed into the Easidew PRO XP LQ via the application software;
Alternatively the user can program saturation constants manually
CE Conformity 2004/108/EC, 94/9/E ATEX directive
Operating Specifications
Operating Temperature -40 to +60°C
Compensated Temperature Range -20 to +50°C
NOTE: The transmitter accuracy statement is only valid for the temperature range: -20/+50°C
Storage Temperature -40 to +60°C
Operating Pressure 45 MPa (450 barg) maximum
Flow Rate 1 to 5 Nl/min mounted in standard sampling block
0 to 10 m/sec direct insertion
Mechanical Specifications
Ingress Protection IP66 in accordance with standard BS EN 60529:1992;
NEMA 4 protection in accordance with standard NEMA 250-2003
Explosion and Flameproof Area Certificates

Standard: aluminiumOptional: 316 stainless Steel
ATEX: II 2 GD Exd [ia] IIC T6 Gb
EX tb IIIC T80°C Db IP66
Tamb -20°C to +70°C

II 2 GD Exd [ia] IIC T6 Gb
EX tb IIIC T80°C Db IP66
Tamb -20°C to +70°C

IECEx: Exd [ia] IIC T6 Gb
Ex tb IIIC T80°C Db IP66
Tamb -20°C to +70°C

Exd [ia] IIC T6 Gb
Ex tb IIIC T80°C Db IP66
Tamb -20°C to +70°C

CLS I, Zone 1 AEx/Exd [ia] IIC T6
Zone 21, AEx/Ex tb IIIC T80°C
Tamb = -20°C to +70°C IP66

Tamb = -20°C to +70°C IP66

INMETRO (Brazil):[Approval codes as per IECEx]
TC TR EX-Certificate: 1Ex d [ia] IIC T6 Gb X
Ex tb IIIC T80°C Db X
Tamb –20°C to +70°C
(Russia, Belarus, Kazakhstan)

Russian Pattern Approval Pending: Russia (GOST-R), Kazakhstan (GOST-K)
Canadian Pressure Vessel Certification C.R.N. - all Canadian provinces
Oxygen service Optional: cleaned for enriched oxygen
Housing material Standard: Aluminium (copper free), epoxy and polyurethane powder coated, blue RAL 5009
Optional: 316 stainless steel (Housing supplied with EN10204 3.1 material cert. if option F2 requested) (ATEX, IECEx only)
(sensor protection)
Standard: Stainless steel sintered guard (for protection against fine particulate >80μm)
Optional: HDPE guard (for protection against fine particulate >10μm)
Process Connection and Material 3/4” - 16 UNF with recessed Viton® o-ring
316 stainless steel
Weight Aluminium: 1.6kg
316 Stainless Steel: 2.4kg
Electrical Connections Dual 3/4” NPT gland
Programmable display meter range Optional: -1999 to +9999
Programmable display decimal point Optional: 0 to 3 decimal places
Display meter overload limits Optional: 3.6 mA & 20.4 mA
Programmable display meter scales Optional: °C, °F, %, No Scale
Stainless steel tags Optional: 316 stainless steel tags (70 x 25mm)

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