Minebea CSA-507C, Instruction Manual

Page: 23 / 50

11
5 − 2 − 1. Calibration with actual load
Procedures
1
Make the condition of applying the initial load
(Tare weight) on the load cell.
When the initial load (Tare weight) is exceeding
±
0.25 mV/V in input conversion, cancel the
initial load (Tare weight) according to the
paragraph 5
− 3.
ZERO trimmer
SPAN trimmer
2
Zero adjustment
Adjust the voltage output value to 0.000 V, or
adjust the current output value(option) to 4.000
mA by using the “ZERO” trimmer.
When both the voltage output and the current
output will be used together, adjust the output
voltage by using above procedure at first, then
adjust the current output by using the trimmer
on the top face.

Warning
：
Make calibration with shorted
between A/Z OFF and A/Z COM when
optional auto zero function (CSA
− 507C − 99)
is attached.
3
SPAN Adjustment
Apply the standard weight on the load cell (use
the one near the maximum load as possible.) and
adjust the value to the output voltage value or
output current value(option) to be set by using
the SPAN trimmer.
When both the voltage output and the current
output will be used together, adjust the output
voltage by using above procedure at first, then
adjust the current output by using the trimmer
on the top face.
current output
SPAN trimmer
ZERO trimmer
4
Zero adjustment
Remove the standard weight applied in the step
3, then confirm if the voltage output value
becomes to 0.000 V, or if the current output value
becomes to 4.000 mA, otherwise return the
procedure to step 2.
5
Now, calibration has completed.
5
, p