Operation Multi 197i
18
ba75339e04 07/2009
Temperature measure-
ment in pH measure-
ments
You can perform pH measurements with or without a temperature sen-
sor as well as with the temperature sensor of an oxygen sensor or a
conductivity measuring cell. The measuring instrument recognizes
which sensors are connected and switches automatically to the correct
mode for the temperature measurement.
The following cases are distinguishable.
* If you do not wish that, you can:
– either disconnect the 2nd sensor and use the manual temperature
input or
– use an electrode with a temperature sensor.
If a temperature sensor is connected, it is indicated on the display by
TP.
Note
When calibrating without a temperature sensor (no TP display indicator
displayed), enter the current temperature of the respective buffer solu-
tion manually using the <▲> <▼> keys while keeping the <RUN/EN-
TER> key depressed.
Temperature sensor Display Mode
pH Cond or
Oxi
yes - TP Automatic with
pH temperature sensor
yes yes TP
- - Manual
-yesTP
flashes
The temperature value of the
second sensor (Cond or Oxi)
in the same sample is taken
over for the pH measurement*
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