Xylem WTW pH/ION 3310, Руководство по эксплуатации

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pH/ION 3310 Ion concentration
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7 Ion concentration
7.1 Measuring
7.1.1 Measuring the ion concentration
NOTE
When connecting an earthed PC/printer, measurements cannot be
performed in earthed media as the values would be incorrect
.
The USB interface is not galvanically isolated.
Incorrect calibration of ion sensitive electrodes will result in incor-
rect measured values. Calibrate regularly before measuring.
For precise ISE measurements the temperature difference
between measurement and calibration should not be greater that
2 K. Therefore, adjust the temperature of the standard and
measuring solutions accordingly. If the temperature difference is
greater the
[TempErr] warning appears in the measured value
display.
1. Connect the ISE combination electrode to the meter.
The pH/U/ISE measuring window is displayed.
2. If necessary, select the ISE display (unit, mg/l) with <M> .
3. When measuring without temperature sensor:
– Temper the test sample, or measure the current temperature.
– Enter the temperature value with
<

> <

> .
4. Calibrate or check the meter with the electrode.
While no valid calibration is available, e.g. in the delivery condition,
"Error" appears in the measured value display.
5. Immerse the electrode in the test sample.
ISE
0.157
mg/l
25.0
°C
Ag
Menu
USB output
15.02.2014
12:12