Omega PHCN-962, Руководство пользователя

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NOTE: Press key to quit set up mode at any time. Instrument will return to
measurement mode automatically.
NOTE: Transmitter will show ERR when calibration is error. Under this situation,
press to quit and calibrate again from step 1. It will show ERR again under
following situations:
(1) Use wrong standard solution or standard solution is expired.
(2) Electrode is aging or not clean or bubble is broken.
(3) Electrode wire is broken or leakage because of joint corrosion.
NOTE: When calibrating under manual temperature compensation, transmitter will
automatically switch to calibration temperature from pre-set measurement
temperature. When leaving calibration mode, transmitter will switch to measurement
temperature again. (Please refer to Item 5.2 for setting measurement temperature
and calibration temperature)
NOTE: ELE K=59.1 presents the conversation coefficient 59.1mV/pH of pH
electrode, which means each pH is converted by 59.1mV electric
potential.
For example: when slope is 90%, the conversation coefficient is 59.1 *
90%=53.19.
When the conversation coefficient is lower than 45mV, which is equal
to 75%, users should change electrode. Instrument will show ERR
automatically when the conversation coefficient is lower than 40mV,
which is equal to 67% slope.