H87.0.0X.6C-01
Operating manual G 7500 Series
page 27 of 34
7.3 temperature channel menu
Independent available for both, temperature (O2/LF) and temperature (pH)
sensortype
NTC 10 k
NTC 10 k only
available for O2/LF
Pt1000
unit
°C
°F
K
alarm
function
off
on
min.-limit
max.-limit
7.3.1 sensortype
The channel temperature (O2/LF) will change the sensortype automatically when an
electrode is changed.
Conductivity electrode (LF 425) sensortype: Pt1000
Oxygen electrode (GWO 5610) sensortype: NTC 10 k
When other electrodes are used, the setting has to be changed manually.
Pt1000 is normally the correct setting for temperature (pH)
as it’s standard electrode is
the GE 125.
When using different electrodes, check the manual of the electrode for the correct
setting.
7.4 oxygen channel menu
measurement
O
2
concentration
[mg/l]
O
2
saturation
[%]
O
2
partial pressure
[hPa]
alarm
function
off
on
min.-limit
max.-limit
salinity
auto pressure
comp.
off
on
absolute pressure
7.4.1 salinity
Input of salinity. The oxygen value will be re-calculated on values not equal to 0.
7.4.2 auto pressure comp.
Automatic pressure compensation or manual input.
7.4.3 absolute pressure
Manual input of the air pressure.
