Xylem ProLab 1000 BENCH TOP pH METER - Manual (Page 52)

Operation ProLab 1000
52 ba75576e04 01/2011
4.6 Ion concentration
4.6.1 General information
Note
Incorrect calibration of ion sensitive electrodes will result in incorrect
measured values. Calibrate regularly before measuring.
CAUTION
When connecting an earthed PC/printer, measurements cannot be
performed in earthed media as incorrect values would result. The
RS232 and USB interfaces are not galvanically isolated.
Temperature
measurement with ISE
measurements
For reproducible measurements of the ion concentration, it is essential
to measure the temperature of the test sample.
You have the following options to measure the temperature:
z Measurement by a temperature sensor.
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:
* If this is not required you can unplug the second sensor and enter the
temperature manually.
Temperature
sensor
Resolution of the
temp. display
Mode
- 1 °C Manual
yes 0.1 °C Automatic with
temperature sensor