HBM T40B Mounting Instructions page 32

Mechanical installation
Rotational speed measuring system sensor head alignment
If the stator is accurately aligned for torque measurement, the rotational speed
measuring system and the sensor for the reference signal (zero index) are also
correctly aligned. So the two Allen screws on the sensor head (Fig. 5.10) must
not be loosened.
Important
You must not change the position of the sensor head.
Important
This is a magnetic rotational speed measuring system.
In applications where magnetic strengths are expected to be high (such as an
eddy­current brake), suitable action must be taken to ensure that the max.
magnetic field strength stated in the specification is not exceeded.
Fig. 5.10 Torque transducer with sensor head for rotational speed measurement
30
Never loosen the screws!
A03452_15_X00_00 HBM: public
Sensor head for
measuring
rotational speed
T40B