wtw pH/Oxi 340i Operating Manual page 17

pH/Oxi 340i
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 a D. O. probe. The mea-
suring instrument recognizes which sensors are connected and
automatically switches to the correct mode for the temperature mea-
surement.
The following cases are distinguishable.
Temperature sensor
pH Oxi
yes -
yes yes
- -
- yes
* 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.
Display
TP Automatic with
pH temperature sensor
TP
Manual
TP The temperature value of the
flashes 2nd sensor (Oxi) in the same
test sample is used for the pH
measurement*
Operation
Mode
17