horiba LAQUA-PC1100, Instruction Manual

Page: 103 / 117

When an error message appears
87
●
ERROR No.0006 Maximum calibration points exceeded
Attempted to perform 6th point calibration during pH calibration.
●
ERROR No.0007 Cannot identify standard solution
Unable to automatically detect the standard solution during pH calibration.
●
ERROR No.0008 Calibration interval error
・
More than the set number of days has elapsed since calibration was last performed.
・
The calibration interval alarm is "ON" and calibration has not been performed.
Cause How to solve problem
6th point calibration is
attempted.
Up to five points can be calibrated.
Cause How to solve problem
There is a problem with the
standard solution.
Use new standard solution.
Settings about the standard
solution do not match the
instrument.
Check if the instrument settings and the specifications of
the standard solution are compatible.
The electrode is dirty. Clean the electrode.
The electrode is cracked. Replace the electrode.
The standard solution
concentration is fluctuating.
Replace the internal solution in the reference electrode.
Electrode is not immersed
enough to cover liquid junction.
The electrode must be immersed up to the liquid junction.
As a guide, immerse to at least 3 cm from the tip of the
electrode.
Cause How to solve problem
Calibration has not been
performed for the set number of
days of the calibration interval or
longer.
Perform calibration.
The calibration interval alarm is
"ON" and calibration has not
been performed.
Perform calibration.