Operation Multi 3430
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ba75865e08 06/2010
4.6 pH value
4.6.1 General information
You can measure the following parameters:
z pH value [ ]
z Sensor voltage [mV]
Note
The sensor connection and the USB-B (device) interface are galvani-
cally isolated. This facilitates interference-free measurements also in
the following cases:
z Measurement in grounded test samples
z Measurement in one test sample with several sensors connected to
one Multi 3430
Temperature
measurement
For reproducible pH measurements, it is essential to measure the tem-
perature of the test sample. IDS sensors measure the temperature with
a temperature sensor integrated in the IDS sensor.
When operating a sensor without integrated temperature sensor, e.g.
via an IDS pH adapter, you have the following options to determine the
temperature of the measuring solution:
z Temperature measurement via the integrated temperature sensor of
an IDS sensor.
When the measured temperature value is taken from an IDS sensor
the [TP
↑
] status indicator is displayed in the measuring window of
the IDS pH adapter. In the measuring window of the IDS sensor pro-
viding the measured temperature value the [TP
↓
] status indicator is
displayed.
z Manual determination and input of the measured temperature value.
Note
The settings for the temperature can be adjusted in the menu for calib-
ration and measurement settings (siehe section 4.6.3).
Preparatory activities Perform the following preparatory activities when you want to measure:
1 Connect the IDS pH sensor to the meter.
The pH measuring window is displayed.
2 If necessary, select the measured parameter with <M>.
3 If necessary, calibrate or check the IDS pH sensor.
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