OEM OPM223, Operating Instructions Manual, Page: 30 / 104

Operation OPM223/253
30
5.4 System configuration
5.4.1 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.
!
Note!
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 mV
ORP %
"
Caution!
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
1 ... 60
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
!
Note!
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
A
SETUP 1
A1
Oper . Mode
pH
A2
Wiring
sym
A3
Damping
1
A4
Sensor
Glass
A5
Temp
Pt100