6 Maintenance and Troubleshooting
6.5 Troubleshooting
156
HORIBA
6.5
Troubleshooting
The meter is equipped with a simply error-message
function to notify the operator that an operation error or
problem with the equipment has occurred. Errors or
other problems that occur while in the Measurement
mode are announced by an error No. appearing in the
lower left-hand corner of the display.
6.5.1 Error message chart
ERR No.
Message
Explanation
01
Memory error
Data cannot be read from or written to
the internal memory.
02
Battery voltage
low
The battery voltage is low.
03
Electrode
stability error
The electric potential did not stabilize
within three minutes.
04
Asymmetric
potential error
pH: The asymmetric potential of the
electrode is 45 mV or more.
05
Electrode
sensitivity error
pH: The electrode sensitivity is either
105% or more or 85% or less than the
theoretical sensitivity.
DO: The electrode sensitivity is out of
the standard.
06
Max. calibration
points exceeded
pH: No more than three points can be
calibrated.
07
Cannot identify
standard solution
pH: The pH meter cannot identify the
standard buffer.
08
Calibration cycle
error
pH: Exceeds the calibration cycle
setting.
09
Printer error
There is a problem with the printer.
10
Data memory
over
The number of data items has
exceeded the limit of the memory.
11
Cell constant out
of range
COND: Cell constant is out of
automatic calculation range.
Summary of Contents for D-25
Page 2: ......
Page 11: ...CONTENTS VIII HORIBA ...
Page 31: ...1 Overview of the Meter 1 9 Using the protective cap D 53 54 55 20 HORIBA ...
Page 75: ...2 Taking Measurements 2 9 Dissolved oxygen DO measurement D 55 64 HORIBA ...
Page 139: ...4 RS 232C communications 4 5 Communication example using the HyperTerminal 128 HORIBA ...