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Rotating torque meter – Serie CR5


  • High precision measurement of torques for dynamic measures up to 1000 Nm.
  • High precision.
  • High speed.
  • Built-in speed measurement.
  • Torque measurements on drive motor.
  • Versatility.


Type 4502A... torque sensors operate on the strain gauge principle and supply an analog output
signal of ±0 ... 5 V which is contactless transferred. Also available with integrated rotational
angle/speed measurement.
  • Smart (integral measuring electronics)
  • Interference resistance due to active torque output (±5 VDC), electrically isolated from supply and measuring signal
  • Non-contact signal transfer
  • Unipolar supply
  • Highly responsive to dynamic peaks
  • Maintenance-free

Standardized mechanical connections:
  • 1/4" hex socket DIN3126
  • Square socket (size depending on measuring range)
  • Cylindrical shaft ends
  • Extremely compact
  • Suitable for pulse tool operation
  • Optional rotational angle measurement


Measuring ranges (Nm)0.2; 0.5; 1; 2; 5; 10; 20; 50; 100; 200; 500; 1000
Linearity deviation0.2 %
Overload 50%
Electrical connectionFrom 11 to 26 VDC
Output signalInsulated ± 5V
Bandwidth <3 KHz
Max. rotating speeds
Up to 18 Nm12000 tours/mn
From 20 to 160 Nm9000 tours/mn
From 250 to 1000 Nm7000 tours/mn
With ‘A’ option – angle measurement7000 tours/mn
Protection IP 40
Temperature From -25°C to +80 °C
Other speed on request


Speed/angle measurement (reference: RA, QA and HA). Built-in 360 pulses per second encoder, two squaring pulse trains, at 90°C.

RAU model (model to set onto a table).

R (Round) model / RA (Round and angle measurement).

H (Hexagonal) model / HA (Hexagonal and angle measurement).

Q model (Square) / QA (Square and angle measurement).