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APPENDIX 3: TABLE OF SELF-DI AGNOSIS
Symbol
Self-Diagnosis Information
pH
Conductivity
Wrong conductivity calibration solution or the meter recognition
of calibration solution out of range.
√
√
Press
key when measuring value is not stable during calibration.
√
√
During calibration, the measuring value is not stable for ≥ 3 min.
√
√
pH electrode zero electric potential out of range (<-60mV
or >60mV)
√
pH electrode slope out of range (<85% or >110%)
√
Enter in pre-set due calibration to remind re-calibration
√
√
APERA INSTRUMENTS (Europe) GmbH
Address: Wilhelm-Muthmann-Str.15
42329 Wuppertal, Germany
Email: [email protected]
Website:
Tel.: +49 202 51988998
