Справочник Пользователя для Hanna Instruments hi 931402
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• If the reading is drifting, turn the meter off and
repeat the calibration procedure waiting longer
time for the reading to stabilize. However,
usually 1 or 2 minutes are enough to prevent
drifting of the reading.
time for the reading to stabilize. However,
usually 1 or 2 minutes are enough to prevent
drifting of the reading.
Note: If you need to unplug the instrument,
press the OFF key thus switching the
instrument off before disconnecting the
power cord. In this way the instrument
will retain the calibration data. Other-
wise, re-calibration might be necessary.
In the case of a power failure while the
instrument is operational, re-calibration
might be required.
instrument off before disconnecting the
power cord. In this way the instrument
will retain the calibration data. Other-
wise, re-calibration might be necessary.
In the case of a power failure while the
instrument is operational, re-calibration
might be required.