Liquid Pressure Transducers
WP Series




  • Excellent long-term stability and high accuracy
  • Backlit LCD for display of differential or gauge
        pressure
  • Jumper selectable LCD backlight for low power
        consumption applications
  • Four switch selectable pressure ranges
  • Jumper selectable output types, 4-20 mA, 0-5
        and 0-10 Vdc
  • NEMA 4X (IP65) enclosure
  • Pushbutton and remote zeroing terminal
  • Uni-directional or bi-directional pressure
        range selection switch
  • High / low port swap switch to solve incorrect
        plumbing for differential
  • Normal or slow surge damping switch to prevent
        false alarms and reduce noise
  • Output polarity reverse switch



  • Gauge pressure tranmistter



    Wet/Wet differential pressure transmitter c/w LCD

  • Pump Monitoring
  • Filter Monitoring
  • Chiller Monitoring
  • HVAC Systems


  • The Wet-Wet pressure transmitter is designed with dual sensors that enable it to accept high differential pressures in the ranges of 5PSI to 500PSI. All models can handle overload pressure 2X the maximum full scale range and burst pressure is 5X the maximum full scale range.

    The gage pressure transmitter is designed with a single sensor that enables it to accept high pressures in the ranges of 5PSI to 500PSI. All models can handle overload pressure 2X the maximum full scale range and burst pressure is 5X the maximum full scale range.

    Features include field selectable pressure ranges and output signal types for the most flexible applications. Typical HVAC applications include monitoring of water differential and gage pressure. The output signal is factory calibrated and temperature compensated for the highest start-up accuracy.

    Ensure that the maximum individual port pressure does not exceed the maximum pressure range of the unit. For example, the maximum individual port pressure on a WPD-102 is 100 PSI. Exceeding this may damage the sensors and WILL give erroneous readings.



    Media compatibility 17-4 PH stainless steel
    Input power 15 to 30 Vdc / 24 Vac nominal
    Supply Current @ 24 Vdc (max) 100 mA with LCD backlight 35 mA LCD backlight disabled
    Output 3-wire transmitter; user selectable 4-20mA, 0-5V and 0-10V
    Pressure Ranges 0-5/10/25/50 psig/d, 0-10/20/50/100 psig/d, 0-20/40/100/200 psig/d, 0-50/100/250/500 psig/d, 0-.5/1/2.5/5 Bar, 0-.75/1.5/3.75/7.5 Bar, 0-1/2/5/10 Bar, 0-3/6/15/30 Bar, 0-50/100/250/500 kPa, 0-75/150/375/750 kPa, 0-100/200/500/1000 kPa, 0-300/600/1500/3000 kPa
    Proof Pressure Max. 2X highest range per model
    Burst Pressure Max. 5X highest range per model
    Accuracy +/- 1% F.S. of selected range combined linearity, hysteresis, and repeatability. Lowest range has accuracy of +/- 2% F.S.
    Pressure cycles > 100 million
    Surge Damping normal 4-second averaging slow 8-second averaging, switch selectable
    Temperature compensated range
    (at transmitter)
    0 to 55ºC (32 to 130ºF)
    Sensor operating range -40 to 105ºC (-40 to 220ºF)
    Long term stability +/- 0.25% typical (1 year)
    Zero Adjust pushbutton auto-zero and digital input
    Operating environment 0 to 50ºC 10-90% RH non-condensing
    Fittings 1/8"NPT female
    Enclosure ABS with hinged lid and gasket, 145 x 102 x 63mm (5.7"x 4"x 2.5")
    Shock 100G, 11 mSec, 1/2sine
    Vibration 20G peak 20 to 2400 Hz
    Rating IP65 (NEMA 4X)


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