Low Pressure Transducers
LP2 Series



  • Ranges 1" W.C. to 12" W.C. (200 to 2000 Pa)
  • Four variable jumper selectable
        pressure ranges, W.C. & Pa.
  • Jumper selectable 2 wire current and
        3 wire voltage outputs standard
  • 24 Vac/dc power supply standard
  • Functional weather resistant ABS Enclosure
  • Available options include LCD display and
        integrated static probe
    		•


    LP2 c/w LCD display



    LP2 c/w LCD & integrated static probe

  • HVAC/VAV
  • Air Flow Monitoring
  • Hydraulic Pressures
    		•
  • Process Control
  • Drop Across Air Filters
  • Pneumatic Pressures


    • The LP2 Low Pressure Transducer can be used to measure positive, negative or differential pressure in the ranges of 1.00” W.C. to 12” W.C. (200 to 2000 Pa). The piezoresistive sensor is ideal for monitoring the pressure for air or other clean inert gas and is limited only to those media which will not attack polyetherimide, silicon, fluorosilicone, silicone, EPDM and neoprene seals.

    The LP2 features field selectable pressure ranges and output signal types for the most flexible applications. Typical HVAC applications include monitoring of filter differential pressure or VAV applications. The output signal is factory calibrated and temperature compensated for highest startup accuracy and trouble-free operation. Available options include LCDs and integrated static pressure probes.



    Pressure Ranges See ordering information
    Calibration Accuracy ± 1% F.S.O.
    Measurement Types Differential (two ports), Static, Velocity, and Total Pressures
    Response Time 1 ms maximum
    Stability < ±1% F.S.O. per year
    Thermal Effects < ±3% over compensated range
    Compensated Range 10 – 50° C (50 – 122° F)
    Over Pressure 20 psi or 2 x range (whichever is greater)
    Operating Conditions 0 – 60° C (32 – 140° F), 10 – 90% RH non-condensing
    Media Compatibility Limited only to those that will not attack polyetherimide, silicon, fluorosilicone, silicone, EPDM, and neoprene seals. Typically dry air or inert gas but liquid is allowed.
    Power Supply
    (at transmitter)     		12 – 28 Vac, 16.5 – 35 Vdc (non-isolated half-wave rectified)
    Supply Current < 4 mA
    Input Voltage Effect Negligible over specified operating range
    Protection Circuitry Reverse voltage protected and output limited
    Output Signal 4 – 20 mA (2-wire), 0 – 5 Vdc or 0 – 10 Vdc (3-wire)
    Current Output
    Drive Capability     		400 ohms maximum @ 24 Vdc
    Voltage Output
    Drive Capability     		2 Kohms minimum for 0 – 5 Vdc signal
    10 Kohms minimum for 0 – 10 Vdc signal 
    Zero Adjustment Push button auto-zero
    Wiring Connections Screw terminal block (14 to 22 AWG)
    Pressure Connections Barbed ports for 4.33 mm (0.170”) ID flexible tubing
    Conduit Connection Access hole for 1/2” NPT conduit or cable gland
    Enclosure High Impact black ABS, plenum rated with optional gasket
    116 mm W x 84 mm H x 53 mm D (4.55” x 3.3” x 2.1”)
    Optional LCD 3.5 digit, 10 mm (0.4") digit height


    HomeCompanyProductsISO 9000Client CenterContact UsLocationsStandardsSite Map
    Copyright © Greystone Energy Systems Inc. 2003

    Privacy Statement