Optidew

 Optical Dew-Point Transmitter
A state-of-the-art digital dew-point transmitter with chilled mirror technology providing high performance, fundamental measurement, maximum flexibility and low cost of ownership.





Product Features

  • Precision process dew point, %RH and temperature measurement
  • Measurement Range:
    <0.5 to 100% RH
    -40 to +90°Cdp (-40 to +194°Fdp)
  • Measurement Accuracy:
    ±0.2°Cdp (±0.36°Fdp)
    (±0.15°C (±0.27°F) optional )
  • Fundamental drift free dew-point measurement
  • Rugged NEMA 4X industrial housing
  • High temperature sensor option to +130°C (+266°F)
  • Optional local display
  • Optidew

    More Information

    Technical Specification

    Performance
    Measurement range
      1-stage
      2-stage
      High Temperature

    -30 to +90°Cdp (-22 to +194°Fdp) at sensor temperature of 20°C
    -40 to +90°Cdp (-40 to +194°Fdp) at sensor temperature of 20°C
    -20 to +130°Cdp (-4 to +266°Fdp) at sensor temperature of 20°C
    Measurement accuracy ±0.2°Cdp (±0.36°Fdp)
    ±0.1°C temperature (±0.18°F)
    ±0.15°Cdp accuracy optional (±0.27°Fdp)
    Measurement units °Cdp; °Fdp; % RH; °C, °F temperature; g/m3; g/kg; aw; ∆ (t - t dew point)
    Response speed 1°C/sec (1.8°F/sec) plus settling time (dew point dependant)
    Power supply 85 to 264 VAC, 47/440 Hz
    Dew-Point Sensor
    Mirror options Gold plated copper
    Solid gold
    High temp sensor - 316 stainless steel
    Temperature measurement 4-wire PT100 1/3 DIN class B
    Sample flow rate 0.1 to 2 Nl/min (0.2 to 4.23 scfh) in sampling block
    Maximum velocity 10 m/sec direct insertion (1968 ft/min)
    30 m/sec with sintered guard (5905 ft/min)
    Pressure 2 MPa (20 barg/290 psig
    25 MPa (250 barg/3626 psig optional
    Ingress protection IP66 (NEMA 4)
    IP65 (25 MPa (250 barg/3626 psig) sensor (NEMA 12)
    Cable length - Remote 2m (6.5ft)
    Maximum 250m (820ft)
    Remote PRT
    Temperature measurement 4-wire PT100 1/10 DIN class B
    Transmitter Electronics
    Resolution 0.1 for °C, °F and %RH
    0.01 for g/m3 and g/kg
    Outputs Analog: Two channels 0/4-20 mA
    Digital: RS232 (RS485 optional)
    Alarm: Volt free contact 2A @ 30 V DC
    Status LEDs Power on, DCC and alarm status
    Operating temperature -20 to +40°C (-4 to +104°F) ambient
    Enclosure 304 stainless steel
    Ingress protection IP66 (NEMA 4X)
    Cable pack Power and RS232 cables

    Applications

    Metrology Research & Development

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