Magtrol TM Series, User Manual, Page: 27 / 44

2.3.2 TORQUE SIGNAL CONDITIONING ELECTRONIC CIRCUIT
The TM Series Torque Transducer is fitted with a measuring signal conditioning electronic circuit. This con-
ditioning chain is based on a carrier frequency system containing a synchronous demodulator and a
second-order Butterworth-type low-pass filter. The filter’s cut-off frequency is adjusted by micro-switches
(SW1 to SW12) that are accessible by removing the cover of the transducer’s builtin electronics (
see Fig.2-
7
). The various setting possibilities are indicated on a label affixed to the back of this cover.
Some applications may warrant fine adjustment of the torque transducer zero point. To activate the offset
adjustment potentiometer, simply positioning the SW12 micro-switch to ON. A full-scale zero adjustment
of ±10 % equivalent to ± 0.5 V can then be carried out by the potentiometer. With the SW12 micro-switch
to OFF, the default settings are used.
. There are no functions allocated to the SW11 micro-switch.
Fig.2-7 SW1 – SW12 Micro-switches and Offset Adjustment Potentiometer
NOTICE
ON
Offset Adjustment
Potentiometer
DIP switch
12 poles
1
ON
2
ON
1 Hz
ON
2 Hz
ON
5 Hz
ON
10 Hz
ON
20 Hz
ON
40 Hz
ON
100 Hz
ON
200 Hz
ON
500 Hz
ON
1 kHz
ON
2.5 kHz
ON
5 kHz
OFF ON
19
TM
series
INSTALLATION / CONFIGURATION