Nagano Keiki GC31 Instruction Manual page 24

 Error display
An error message and pressure value are alternately displayed when one of the following
errors occurs in the measurement mode (In case of "Out of pressure display range" error, only
error message is displayed). Check the content of error message and take the action below
immediately.
Error
display
Out of pressure display range (Upper limit)
A pressure above 110% F.S. of pressure
range is applied, or when indicated value
exceeds 1999.
Out of pressure display range (Lower limit)
A pressure less than -10% F.S. of pressure
range is applied, or when indicated value
falls below -1999.
During zero point adjustment, applied
pressure is outside the range of ±10% F.S.
Comparator 1 is overloaded
Comparator 2 is overloaded
Comparator 1 & 2 are overloaded
 Backup of setting values
The unit has an internal EEPROM and settings and the key lock state are maintained even
after the power is turned OFF. However, peak / bottom values are not maintained.
Contents
TY-GC31-004A
Actions
Adjust the applied pressure within
the rated pressure.
Open the unit to the atmosphere
and perform zero point adjustment
again.
Drop the load current below 80mA
before use.
To recover from error status, turn
on the power again.
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Rev.B