Small Capacity Transformer Coupled Shaft Torque Sensor Model T231

///Small Capacity Transformer Coupled Shaft Torque Sensor Model T231

Small Capacity Transformer Coupled Shaft Torque Sensor Model T231


  • 5 9/16” overall length including shafts
  • 2 1/2” overall housing diameter Weighs 1.3 lbs.
  • On-board shunt calibration circuit
  • Zero velocity speed sensor (optional)
  • SAE 4340 alloy steel – satin nickel finish
  • Supplied with mating connector

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The T231 is designed for in-line testing of small motors, pumps, compressors, turbines, fans, and other fractional horsepower rated devices. The T231 rotary transformer requires the use of AC strain gage signal conditioning electronics such as SensorData’s i200. The T231 is supplied with a foot mount as standard. The optional zero velocity speed sensor is installed inside the T231 housing. Interconnecting cable assemblies are available as an option. SensorData will provide in-house calibration of the T231 with customer-supplied electronics for a fee.

Additional information


T231-106, T231-231


Small, Medium, Large, X-Large


Rated Capacity50, 100, 200, 500, 1K oz-in
Rated Speed20,000 rpm
Nonlinearity0.05% of rated output
Hysteresis0.05% of rated output
Nonrepeatability0.02% of rated output
Rated Output, typical2 mV/V
Zero Balance+/-0.5% of rated output
Temperature Range, operating-20 to +220 F
Temperature Range, compensated+68 to +200 F
Temperature Effect on Output0.001% of load/F
Temperature Effect on Zero0.001% of rated output/F
Bridge Resistance, typical350 ohms
Excitation2.8 to 5 VAC rms, 3 kHz to 5 kHz
Insulation Resistance, bridge to case>5000 megohms at 50 VDC
Input voltage, speed sensor, Vcc (optional) (1)4.5 to 24 VDC
Maximum Load, safe (2)200% of rated capacity
Maximum Load, ultimate (3)400% of rated capacity
Number of Bridges1
Weight1.3 lbs
Construction SAE 4340 alloy steel with satin nickel finish