wtw pH 3310 - pH value; ORP voltage

pH 3310 Operation
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ba75802e02 12/2008
4.4 pH value / ORP voltage
4.4.1 General information
You can measure the following variables:
z pH value [ ]
z ORP [mV]
Warning
When a grounded PC is connected, measurements cannot be
performed in grounded media as incorrect values would result.
The USB-A (Device) is not galvanically isolated.
Temperature
measurement
For reproducible pH measurements, it is essential to measure the
temperature of the test sample.
You have the following possibilities to measure the temperature:
z Automatic measurement of the temperature by the temperature
sensor (NTC30 or Pt1000) integrated in electrode.
z Manual determination and input of the temperature.
The meter recognizes whether a suitable sensor is connected and
automatically switches on the temperature measurement.
The display of the temperature indicates the active temperature
measuring mode:
Preparatory activities Perform the following preparatory activities when you want to measure:
Temperature
sensor
Resolution of
the temp.
display
Mode
yes 0.1 °C Automatic with temperature
sensor
- 1 °C Manual
1 Connect a pH or ORP electrode to the meter.
The pH measuring window is displayed.
2 If necessary, select the pH or mV display with <M>.
3 Adjust the temperature of the solutions and measure the
current temperature if the measurement is made without a
temperature sensor.
4 Calibrate or check the meter with the combination electrode.