MemoTrans
38
No. Message
S
1)
D
2)
F
3)
Sensor type Configurable Tests or remedial action
122 Sensor glass
F
On
Off
P (glass)
Yes
Impedance limit values exceeded/
undershot.
Measuring can continue until the alarm
(122, 124) occurs.
1. Inspect sensor for hair-line cracks and
breakage.
2. Check or change limit values.
3. Replace sensor.
123 Sensor glass
M
On
Off
P (glass)
Yes
124 Sensor glass
M
On
Off
P (glass)
Yes
125 Sensor glass
F
On
Off
P (glass)
Yes
126 Sensor check
M
On
Off
P (glass)
No
Sensor condition check (SCC), poor
sensor condition.
Glass membrane fouled or dry, junction
blocked.
1. Clean sensor, regenerate.
2. Replace sensor.
127 Sensor check
M
On
Off
P (glass)
No
Sensor condition check (SCC), adequate
sensor condition.
128 Sensor leakage
F
On
Off
P (ISFET), O
Yes
Leak current alarm.
Defective due to abrasion or damage
Damage to the gate (only ISFET).
• Replace sensor.
129 Sensor leakage
F
On
Off
P (ISFET), DO Yes
Leak current warning.
Measuring can continue until the alarm
occurs.
130 Sensor supply
F
On
Off
P, O
Yes
Poor sensor power supply.
1. Check sensor connection.
2. Replace sensor.
136 Sensor temp. high
S
On
Off
O
No
Temperature outside specification.
1. Check process.
2. Check installation.
141 Polarization
F
On
Off
C
No
Polarization warning.
The measured value is corrupted at high
conductivity levels.
• Use a sensor with a larger cell constant.
142 Sensor signal
F
On
Off
C
No
Reasons: sensor in air, sensor defective.
1. Check installation.
2. Replace sensor.
146 Sensor temperature S
Off
Off
All
Yes
Temperature outside specification.
1. Check the temperature.
2. Check electrode system.
3. Replace sensor type.
154 Sensor data invalid
M
Off
Off
C
No
Factory calibration is used.
• Calibrate.
160 Sensor data invalid
F
On
Off
All
No
No calibration data. Reasons: data
deleted.
1. Select other data record.
2. Use factory calibration.
3. Contact the Service Department.
1)
Status signal factory setting
2)
Diagnostics message factory setting
3)
Fault current factory setting
