Omron ZJ-SD Series User Manual page 51

Resetting Zero
The measurement value is used as a reference value to reset zero when a key
operation is performed or an external signal is input.
If the reference voltage was previously corrected, the previous correction will be
overwritten. With the default setting, the correction value will be saved in memory even
when the power supply is turned OFF. The setting can be changed so that the
correction value is not saved.
Saving the Zero Reset Level for the Reference Voltage in Zero Reset Memory p.38
1.
Place the reference sensing object in position.
2.
Set the mode switch to RUN.
3.
Press the ENT key at least one second or
input the zero reset signal from an external
device (for 800 ms max.).
This registers the reference value, and the zero reset
indicator lights.
The tolerance for the registered reference value is displayed on the main display.
Clearing the Reference Voltage Correction Value
1.
Set the mode switch to RUN.
2.
Hold the ENT and RIGHT keys down together
for at least three seconds.
To cancel zero reset from an external device,
input the zero reset signal for at least one
second.
Zero reset is canceled and the zero reset indicator turns OFF.
Correcting the Measurement Reference Voltage
Section 3
ZJ-SD
37
User's Manual