wtw inoLab Oxi Level 2, Руководство по эксплуатации

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Operation
100
4.2 Measuring the pH value/Redox voltage
Preparatory
activities
Perform the following activities when you want to measure:
Note
Incorrect calibration of the pH electrode will result in
incorrect measured values. Therefore, regularly perform
calibration before measuring.
Temperature probe Measurements can be performed with and without a
temperature probe. A connected temperature probe is
indicated by TP on the display.
Note
The meter automatically recognizes the type of the
temperature probe used. As a result, you can connect
electrodes with the NTC30 or Pt1000.
The temperature measurement is absolutely essential for a
reproducible pH measurement. If the measurement is made
without a temperature probe, proceed as follows:
Note
When calibrating without a temperature probe, set up the
current temperature of the respective buffer solution
manually using
u d
while keeping the
g
key depressed.
1 Connect the electrode to the instrument.
2 Adjust the temperature of the buffer or test solutions
or measure the current temperature if the
measurement is made without a temperature probe.
3 Select the measuring mode by pressing
m
.
4 Calibrate or check the instrument with the electrode.
1 Determine the current temperature using a
thermometer.
2 Set up the temperature by pressing
u d
, while
keeping the
g
key depressed.