Operating manual EMGZ307
14
7.6
Calibrating the Measuring Amplifier
•
Connect gauge to the tension or
current output.
•
Connect the first force sensor.
•
Check if a positive output signal is
appearing when loading the sensor in
measuring direction. If not, exchange
the two signal wires of the referring
force sensor in the terminal block
(terminals 2 / 3).
•
If used, connect the second force
sensor.
•
Check if a positive output signal is
appearing when loading the sensor in
measuring direction. If not, exchange
the two signal wires of the referring
force sensor in the terminal block
(terminals 2 / 3).
•
Insert material or a rope loosely to the
machine.
•
Adjust the offset trimmer until the output value is zero.
•
Load material or rope with a defined weight (fig. 10).
•
Adjust the gain trimmer until the output value shows the needed value (for ex. 10V
corresponding to 500N).
Note
If the measuring amplifier is operated with fixed gain and offset, signal
conditioning has to be done with additional equipment (for ex. PLC).
fig. 10:
Calibrating the measuring
amplifier
C431011e
