Culligan MP97 Manual page 39

16. Press the key [ - ] to decrease the setting.
17a. Press the key [ CAL ] to confirm the new setting.
17b. Press the key [ NEXT ] to retain the previous setting in memory.
If an attempt is made to calibrate the offset with values that are too distant from the electric zero value, the µP 97
will automatically reject the setting. The same happens if an attempt is made to calibrate the gain with an input
signal which is too low. If the µP 97 settings are forced with offset/gain values too distant from the standard, the
following errors are emitted:
ERR 17 MINIMUM OFFSET LIMIT REACHED
ERR 18 MAXIMUM OFFSET LIMIT REACHED
ERR 19 MINIMUM GAIN LIMIT REACHED
ERR 20 MAXIMUM GAIN LIMIT REACHED
M003-23 - Rev. 03 - 05/2009
Microprocessore µP97
35