Cooper Instruments & Systems LXT 971 Rotating Torque Load Cell - Manual

CF 59
1
Rev. I September 2013
LXT 970/971 Non-Contact Torque Sensor
1.0 Short Description
The LXT 970/971 series allows an easy and inexpensive torque measurement for test benches and production
lines. With this torque sensor the effective torque on the gauge bar can be measured bi-directionally in real time
both at rest and in rotation.
The sensor is delivered as a complete unit with corresponding connecting cable and key stones. The torque
sensor is particularly characterized by its low price and high robustness.
2.0 LXT 970 / 971 Series
LXT Series
Max Rated Torque
[Nm (ft-lb)]
Max Overload
[Nm (ft-lb)]
Max Rotational
[rpm]
Square Drive Round Drive bidirectional (+/-) Ft-Lbs Round / Square
LXT 970 2.5 LXT 971-2.5 2.5 (1.8) 5 (3.7) 5000 / 1000
LXT 970 5.0 LXT 971-5.0 5.0 (3.7) 10 (7.4) 5000 / 1000
LXT 970 7.5 LXT 971-7.5 7.5 (5.5) 15 (11) 5000 / 1000
LXT 970 17.5 LXT 971-17.5 17.5 (12.9) 35 (25.8) 5000 / 1000
LXT 970 75 LXT 971-75 75 (55.3) 150 (110.6) 5000 / 1000
LXT 970 175 LXT 971-175 175 (129) 350 (258) 5000 / 1000
LXT 970 250 LXT 971-250 250 (184.3) 350 (258) 5000 / 1000
LXT 970 500 LXT 971-500 500 (368.6) 750 (552.9) 5000 / 1000
3.0 Technical Characteristics
No.
Model Series LXT
Accuracy Class 1
Unit Value
1 Linearity deviation incl. hysteresis %ME * < ± 1.0
2 Rotational Signal Uniformity (RSU) %ME * < ± 1.0
3 Repeatability %ME * < ± 0.05
Output signal in general Unit Value
4 Frequency range, ‐3dB point, Bessel
characteristics
Hz 1000
5 Analog signal V 0… 5
6 Signal at torque = Zero V ≈ 2.5
7 Signal at positive nominal torque V > 2.5
8 Signal at negative nominal torque V <2.5
9 Calibration parameter mV/Nm ‐‐‐