Apera Instruments SX823-B

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Appendix III: Self-diagnosis information
Icons
Self-diagnosis information
pH
Conductivity
Wrong pH buffer 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
≥ 3min.
√
√
pH electrode performance error
(zero potentia＜-60mV or＞60mV, slope < 75%）
√