Minebea CSA-521, Инструкция по эксплуатации

Страница: 19 / 32

9
Procedures
3
(Load cell output value at Max. load)
(Rated output value of load cell))
×
(Max. load value)
(Rate load value of load cell)
3 mV/V
×
0.34 t
1 t
1.02 mV/V
(Voltage output value corresponding to CALIB
value)
(Voltage output value at Max. load)
×
(CALIB value)
(Load cell output value at Max. load)
10.000 V
×
0.5 mV/V
1.02 mV/V
4.902 V
Therefore, the voltage output value in turning on
“CALIB” switch is adjusted to 4.902 V
＝
SPAN adjustment
Turn on the “CALIB” switch.
Be able to get the output equivalent to the
calibration value at 0.5 mV/V
±
0.001 mV/V

“CALIB” switch is turned on by sliding up.
The voltage output value corresponding to the
CALIB value is calculated from the rated load
value, the rated output value, the maximum load
value, and the voltage output value of the
connected load cell at that time.
Adjust the voltage output value to become the
calculated value by using the “SPAN” trimmer.
Calculation example)
The calculation example when the voltage
output of 10.000 V is required at the maximum
load of 0.34 t in the condition of using one point
of load cell with the rated capacity 1 t, rated
output 3 mV/V.

Warning
：
Set the rated output value of the
load cell for calculation to the written value
of each inspection data sheet. The input
range of this instrument is 0.5 mV/V to 1.5
mV/V.
＝
＝
＝
≒
＝
Rated load value of the load cell 1 t
Rated output value of the load cell 3 mV/V
The maximum load value 0.34 t
Voltage output value at Max. load 10.000 V
CALIB value 0.5 mV/V
4
ZERO adjustment
Set the CALIB switch to OFF.
Confirm the voltage output value to 0.000 V.
If not, return to the step 2.
5 Calibration is completed.