Liquisys M CPM223/253 Commissioning
Endress+Hauser 41
6.6 System configuration
6.6.1 Setup 1 (pH / ORP)
In the SETUP 1 function group, change the settings for the measuring mode and the sensor.
All the settings in this menu are made during initial commissioning. However, you can
change the settings at any time.
An error message (E010) is output if the temperature sensor is defective. Measuring
continues at a process temperature of 25°C (77 °F).
Setup 1 for ISFET and standard sensors
Coding Field Setting range
(Factory settings, bold)
Display Info
A
SETUP 1 function
group
Configuration of basic functions
A1
Select operating
mode
pH
ORP (= redox) mV
ORP (= redox) %
When the operating mode is
changed, all user settings are
automatically reset to the factory
settings.
A2
Select connection
mode
Sym = symmetrical
Asym = asymmetrical
Detailed information on symmetrical or
asymmetrical connections can be found in
the "Sensor connection" section.
A3
Enter measured
value damping
1
1to60
Measured value damping causes averaging
over the number of individual measured
values entered. This is used, for example,
to stabilise the display if the measurement
is unstable.
There is no damping if “1” is entered.
A4 Select sensor
Glass
Antimony
ISFET
For glass electrodes: glass
For ISFET sensors: ISFET
Glass electrodes may only be used
with zero point pH 7.
A5
Select temperature
sensor
Pt 100
Pt 1K
NTC 30 K
None
Field only available for version "IS"
For ISFET sensors: Pt 1K (Pt 1000)
For glass electrodes: Pt 100
NTC 30k not used
No temperature sensor: Select MTC in B1
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