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Electrode Service Request
Questionnaire
1. What model of meter is the electrode being used with?
2. What is the model number of the electrode?
3. What is the complete lot code of the electrode (located on
the electrode cable)?
4. What is the date the electrode was purchased?
5. How long has the electrode been in use?
6. What types of samples are being tested?
7. What is the temperature of the samples being tested?
8. How often is the electrode being used?
9. How is the electrode being stored between uses?
10. What is the electrode slope during a typical calibration?
11. If a new electrode, has it been conditioned according
to instructions?
12. If the electrode has been in use for a while, what
maintenance has been performed?
13. Describe the suspected problem or failure of the electrode.
14. When calling for telephone support, have your meter,
electrode, and buffers/standards, along with this completed
questionnaire, near the phone before calling.
15. Did you use ISA in samples or standards?
16. Did you use the low range method for LIS and high purity
drinking water samples with conductivity below
150
µ
S/cm?
17. Is the sample above pH 12 with a high Na
+
concentration?
