Xylem ProLab 3000 LABORATORY pH METER - Manual (Page 62)

System functions ProLab 3000
62 ba75645e02 01/2010
6.7.2 Temperature measurement
For reproducible measurements it is essential to determine the corre-
sponding temperature value.
The measuring system receives the temperature value from:
z a temperature sensor integrated in the sensor,
z a temperature sensor integrated in another sensor,
z an external temperature sensor NTC 30 or Pt 1000, or
z manual input of the temperature value.
On the display, the used temperature sensor is labeled with TP,
pH1 TP or pH2 TP.
Using an integrated
temperature sensor Sensors with an integrated temperature sensor always measure the
measured parameter and temperature simultaneously. If the integrated
temperature sensor is recognized, the measured temperature value
and the TP status indicator appear on the display.
Using the temperature
sensor of another
sensor
If no temperature sensor is available for a pH/ISE channel, you can
measure the temperature with the integrated temperature sensor of
another sensor.
To do so proceed as follows:
Using an external
temperature sensor
If you want to measure the temperature using an external temperature
probe, proceed as follows:
1 Immerse two electrodes in the measuring sample.
2 Highlight a channel in the measured value display.
3 In the sensor menu, select the Alternative TP menu item, e.g.
Measuring / Alternative TP.
The temperature measurement is active.
For checking purposes, the used temperature sensor is
indicated on the display.
1 Connect a temperature sensor to the measuring module.
2 Immerse the temperature sensor in the test sample.
The measured temperature value is shown on the display.