Endress+Hauser Liquiline CM44P - Page 149

Liquiline CM44P Diagnostics and troubleshooting
Endress+Hauser 149
No. Message Factory settings Sensor
type
Tests or remedial action
S
1)
D
2)
F
3)
168 Polarization S On Off C (cond.) Polarization warning
The measured value is corrupted at high
conductivity levels.
‣
Use a sensor with a larger cell
constant.
169 Operating time M On Off S Operating hours, conc. > 200 mg/l,
measurement can still take place
1. Replace sensor.
2. Change monitoring limit.
3. Disable monitoring.
170 Operating time M On Off S Operating hours, conc. < 50 mg/l,
measurement can still take place
1. Replace sensor.
2. Change monitoring limit.
3. Disable monitoring.
171 Lamp change M On Off N, T, S,
Phot
Lamp must be replaced
1. Replace lamp.
2. Contact the Service Department.
172 Echo lost F On On U Echo signal lost
173 Sludge level F On On U Incorrect separation zone measurement
‣
Replace sensor.
174 Turbid. failure F On On U Incorrect turbidity measurement
‣
Replace sensor.
175 Wiper failure F On On U Wiper not working
‣
Clean or replace sensor.
176 Operating time M On Off DI Operating hours > 100 nA, measurement
can still take place
1. Replace sensor.
2. Change monitoring limit.
3. Disable monitoring.
177 Operating time M On Off DI Operating hours > 20 nA, measurement
can still take place
1. Replace sensor.
2. Change monitoring limit.
3. Disable monitoring.
178 Operating time M On Off DI Operating hours > 15 °C, measurement
can still take place
1. Replace sensor.
2. Change monitoring limit.
3. Disable monitoring.
179 Operating time M On Off P Operating hours > 300 mV,
measurement can still take place
1. Replace sensor.
2. Change monitoring limit.
3. Disable monitoring.