Model T1750 High-Pressure Transducer

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The Fairchild T1750 Transducers have a closed-loop, integrated, microprocessor control system that regulates outlet pressure. The output can be controlled from the Model T1750 using the keypad or from an analog control signal.


  • Output pressure displays in psig, [BAR], (kPa), or user-defined pressure units.
  • Reverse acting capability for analog input and output signals.
  • Select Current or Voltage mode for input signal or optional analog channels using the keypad.
  • Independently adjustable PID tuning coefficients.
  • Fully functional keypad and display.
  • Backlit Liquid Crystal display screen.
Operating Principles

The Feed and Bleed Solenoid Valves control pressure in the Signal Chamber of the Booster Section. A pressure sensor measures the outlet pressure and provides a feedback signal to the Electronics Section. Any variation in pressure between the setpoint and the outlet pressure activates the Feed and Bleed Solenoid Valves to change the output pressure.


Supply Pressure
1000 psig, [70 BAR], (7000 kPa) Maximum
Flow Capacity
220 SCFM (373.8 m3/HR) @ 600 psig, [40 BAR], (4000 kPa) supply
1000 SCFM (1699.2 m3/HR) @ 600 psig, [40 BAR], (4000 kPa) supply
Exhaust Capacity
190 SCFM (322.8 m3/HR) where downstream pressure is 300 psig, [21.0 BAR], (2100 kPa) above 20 psig, [1.5 BAR], (150 kPa) setpoint
Supply Pressure Effect
No Measurable Effect
Input Signal
4-20 mA, 0-10 VDC
Electrical Supply
24 VDC ± 10%
Power Consumption
Less than 5 watts
Analog Output Signal / Impedance
4-20 mA / 500 ohms Max., 0-10 VDC / 400 ohms Min.
Air Consumption
0 @ steady state output with Deadband @ 1% of Full Scale
Ambient Temperature Limits
0°F to +140°F, (-18°C to 60°C)
Accuracy / Repeatability / Linearity / Hysterisis
< +/- 0.50% of Span (per ISA S51.1)
Adjustable from 0-10% of Full Scale
Materials of Construction
Body and Housing: Chromate Treated Aluminum
Cover and Pintle: Acetel Plastic
Trim: Plated Steel
Elastomers: Fluorocarbon and Silicone
Finish: Anodize

Catalogue PDF: application/pdf
Operational PDF: application/pdf
Located in: Transducers

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