Table of Contents
Advertisement
Operation
Coding
Field
CHECK function
P
group
Switch SCS alarm
P1
for the measuring
electrode on or off
Switch SCS alarm
P2
for the reference
electrode on or off
Enter SCS alarm
P3
threshold for
reference electrode
Leak current display
P4
for ISFET sensor
Select alarm
P5
threshold
monitoring
P6
Enter alarm delay
Enter lower alarm
P7
threshold
Enter upper alarm
P8
threshold
42
Setting range
(Factory settings, bold)
Off
On
Off
On
50.0 kΩ
0.0 ... 50 kΩ
0.0 ... 9.9 µA
Off
Low
High
LoHi = low + high
Low!
High!
LoHi!
0 s (min)
0 ... 2000 s (min)
-2.00 pH
-2.00 ... 16.00 pH
16.00 pH
-2.00 ... 16.00 pH
Display
P
CHECK
Off
P1
SCS Glass
Off
P2
SCS Ref
50.0
k@
P3
SCSThresh
0.0
P4
Leak Curr
Off
P5
A.Thresh
s
0
P6
Err.Delay
pH
-2.00
P7
LowAlarm
pH
16.00
P8
HighAlarm
OPM223/253
Info
Settings for electrode and process
monitoring
Monitoring of electrode for glass
breakage (error no.: E008).
Response time approx. 30 s
SCS glass warning (error no.: E175)
SCS monitoring is not active during
calibration.
Monitoring of reference electrode for
contamination or clogging (error no.:
E030).
Response time approx. 60 s
SCS ref warning (error no.: E177)
Only for A2 = sym.
The measurement result also contains
the resistance of the medium.
The impedance of the reference
electrode increases with the degree of
contamination.
Only if A4 = ISFET and P1 = on.
Display only.
Leak currents > 0.4 µA indicate damage
to the ISFET sensor.
Alarm possible with or without controller
switch-off.
xxxx = without controller switch-off
xxxx! = with controller switch-off
Depending on the option selected in F2,
the alarm delay is entered in s or min.
Only once this time has elapsed does
undershooting/overshooting in
accordance with field P7 / P8 result in an
alarm.
Not applicable when P5 = off.
Not applicable when P5 = off.
Advertisement
Table of Contents
