Calibration; Calibration Option 2, Code Kf1; Calibration Option 2, Code Sf1/Su2 - HBM T10F KF1 Operating Manual

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6

Calibration

T10F torque flanges deliver an electrical calibration signal which can be
picked up by the amplifier in the case of measuring systems using HBM com–
ponents. The torque flange generates a calibration signal of about 50 % of the
nominal torque. The precise value is specified on the type plate. Adjust the
amplifier output-signal to the calibration signal supplied by the connected
torque flange to adapt the amplifier to the torque flange.
In order to reproduce the measured values recorded in the test report, the
boundary conditions regarding the comparability (e.g. mounting position) must
be reproduced.
NOTE
The measurement flange should not be under load when the calibration
signal is being measured, since the calibration signal is mixed
additively.
CAUTION
To maintain measurement accuracy, the calibration signal should be
connected for no more than 5 minutes. A similar period is then needed
as a cooling phase before triggering the calibration signal again.

6.1 Calibration option 2, code KF1

The calibration signal is triggered by increasing the excitation voltage from
54 V to 80 V
PP PP

6.2 Calibration option 2, code SF1/SU2

The calibration signal is triggered by connecting an extra–low safe voltage of
5 V to pins 6 (+) and 7 ( ) of connector 1 or connector 3.
The rated voltage for triggering the calibration signal is 5 V (triggered when
U>2.7 V). The trigger voltage is galvanically isolated from the supply voltage
and the measurement voltage. The maximum permitted voltage is 30 V
voltages lower than 0.7 V, the measuring flange is in measurement mode.
Current drain at rated voltage is approx. 2 mA and at maximum voltage is
approx. 22 mA.
HBM
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(pins 6 and 7, connector 1).
T10F
At
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