24
4
CALIBRATION PROCEDURE
24
CALIBRATION P
R
OCEDURE
Chapter
4
4-2.
Procedure of equivalent input calibration and
calibration protect
The equivalent input calibration and the calibration protect uses the following procedure :
Turn off the calibration protect that inhibits
calibration.
Set the excitation voltage according to the sensor
used.
Set the decimal place.
Set the desired minimum value of digital increments.
(This step may be omitted if there is no change.)
Set the zero point of the strain gauge sensor in no-
load condition (with the sensor unloaded).
Equivalent input calibration
Register the rated output value of the strain gauge
sensor, and the indicated value of that time.
Actual load calibration
Set the span (gain) point of the strain gauge sensor
with a load applied to the sensor.
The calibrated value can be offset in advance.
(When not using, set "0.")
Set the load limit that allows Digital Zero.
Set the HI/LO limit for monitoring overload.
Turn on the calibration protect to prevent
misoperation.
Equivalent input
Actual load
calibration
calibration
Digital offset
⑦
Calibration protect
Min. scale division
a.
Equivalent
input
Calibration protect
①
④
⑥
⑩
Zero calibration
⑤
Excitation voltage
②
Decimal place
③
Digital Zero limit
⑧
b.Actual load
⑥
Alarm HI and LO limits
⑨
calibration
calibration