32
SECTION 4, continued
4.3 Error Codes
Error codes indicate a functional problem with the meter and/or
the electrode. Error code numbers will appear in the temperature
field along with other icons. Table 4 describes the possible error
codes and some possible solutions to eliminate the cause.
4.4 Meter Service Request Questionnaire
1. What is the complete lot code of the meter and electrode?
2. On what date was the meter purchased?
3. How long has the meter been in use?
4. What types of samples are being tested?
5. What is the temperature of the samples being tested?
6. How often is the meter being used?
7. How is the meter being stored between uses?
8. If the meter has been in use for a while, what maintenance
has been performed?
9. Describe the suspected problem or failure of the meter.
10. Please have your meter, electrode, buffers/standards, and this
completed questionnaire near the phone before calling
technical support.
Table 4 Error Codes
Error Code Error Name & Display Icons Description
2 Cal slope error. ERROR and
SLOPE will be displayed.
Calibration slope is too high or low.
Ensure correct pH buffers are used. Be sure a pH
probe is connected to the meter. Disconnect any
probe connected to the BNC connector.
3 Cal Std Error.
ERROR, ENTER, CAL and
Standard will be displayed.
The value read will not work in the calibration
algorithm.
Ensure one buffer was not measured twice and
that the correct buffers were used. If not, repeat
calibration with new buffers.
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