wtw pH 315i, Руководство по эксплуатации

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Operation pH 315i
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4.2 Measuring
Preparatory activities Perform the following preparatory activities when you want to measure:
Note
Incorrect calibration of pH electrodes leads to incorrect measured val-
ues. Calibrate regularly before measuring.
Temperature sensor Basically, pH measurements should only be performed using a temper-
ature probe. The temperature probe is shown on the display by TP.
If you nevertheless use an electrode without a temperature probe, the
instrument operates with a reference temperature of 25 °C. Thus, the
sample and calibration solution must have their temperatures adjusted
to 25 °C in order to avoid larger measurement errors.
Note
The pH meter automatically recognizes the type of temperature probe
used. This enables electrodes to be connected with the NTC30 or
Pt1000.
1 Connect the electrode to the measuring instrument.
2 Calibrate or check the measuring instrument with the elec-
trode.
3 Select the measuring mode with <M>.