• Direct connection to PCs for pneumatic control
  • Two-wire loop powered or three-wire voltage modes
  • Easily accessible wiring terminal blocks
  • Quick panel mounting with supplied snap-track
  • High accuracy with low hysteresis
  • Driftless operation with high repeatability
  • AC/DC operation





  • The ETP-9500 Series transducers convert an electrical input signal to a pneumatic output signal to position pneumatic damper and valve actuators in HVAC systems. The ETP-9520 accepts an industry standard 4 - 20mA current input signal and produces a proportional 21 - 103 kPa (3 - 15 psig) pneumatic output. The ETP-9500 offers more flexibility as it is field selectable to accept either a 4 - 20mA or a 0 - 10 VDC input signal to control the 21 - 103 kPa (3 - 15 psig) pneumatic output.

    The ETP-9520-PW accepts a field selectable pulse width signal to control the pneumatic output.

    The ETP-9520 is powered by the process loop signal and requires no power supply. The ETP-9500 is also loop powered in the 4 - 20mA configuration and will accept a wide range of AC or DC power supply voltages in the 0 - 10 VDC mode. The ETP-9520-PW requires a 24 VDC or 22 to 28 VAC power supply.


    ETP-9500 / 9510 / 9520

    Input Signal EPT-9500, 4 - 20mA or 0 - 10 VDC, jumper selectable;
    EPT-9510, 2 - 10 VDC, 2-wire
    EPT-9520, 4 - 20mA, 2-wire
    Input Impedance 4 - 20mA input, 400 ohm minimum, 550 ohm maximum;
    0 - 10 VDC input, > 100 K ohm
    Power Supply 4 - 20mA input, Loop powered
    0 - 10 VDC input, 24 - 30 VAC/DC, 1.0 Watt maximum
    Air Supply 138 kPa (20 psig) nominal, 207 kPa (30psig) maximum   Clean, dry, oil-free air required
    Air Consumption 5.66 ml/s (0.012 scfm) @ 138 kPa (20 psig) supply, maximum
    Output Air Capacity 141 ml/s (515 scim) maximum @ 138 kPa (20 psig) supply
    Air Connections Male barbed fittings for flexible 1/4" OD pneumatic tubing
    Wiring Connections Screw terminals for 14 - 22 AWG wire
    Output Signal 21 - 103 kPa (3 - 15 psig) nominal, direct acting
    Linearity 0% of span
    Hysteresis 0% of span
    Adjustments Zero and span potentiometers
    Operating Temperature 0C - 60C (32F - 140F)
    Operating Humidity 5 - 95% RH, non-condensing
    Dimensions H x W x D 83 mm x 70 mm x 50 mm (3.25" x 2.75" x 2")



    ETP-9520-PW

    Power Supply Regulated 24 VDC min, 35 VDC max; Regulated 22 to 28 VAC
    Input Dry contact to common, 5 to 24 VDC, or 24, VAC 010%
    Time between pulses 1 millisecond min.
    Pulse duration 0.02 to 5 sec.; 0.59 to 2.93 sec.; 0.1 to 10 sec.; 0.1 to 25.5 sec.
    Accuracy 0% of span for all ranges
    Dimensions H x L x D 83 mm x 165 mm x 50 mm (3.25" x 7" x 2")

    Greystone Energy Systems Inc. reserves the right to make design modifications without prior notice.


    OPTIONS:
  • Pressure gauge (not mounted) PG-100-30, 0-30 psig
  • Pneumatic air filter (not mounted) K-335, 0.5 micron
  • Enclosure NEMA-1 - ETP95XX-E (not available for ETP-9520-PW)