Endress+Hauser Cerabar M - Page 223

Cerabar M, Deltabar M, Deltapilot M Troubleshooting
Endress+Hauser 223
M438 Data record 23 10 – The supply voltage is disconnected when
writing.
– An error occurred when writing.
1. Check setting
2. Restart the device
3. Replace electr.
M472 Buffer 17 6 – Writing too often to EEPROM – Reduce write accessing to
EEPROM.
M515 Configuration
Flow
18 13 – Max. flow out of nominal range of
sensor
1. Recalibrate the device
2. Restart the device
M882 Input signal 22 0 – External measured value displays a
warning status.
1. Check the bus
2. Check source device
3. Check the setting
S110 Working range T 20 8 – Over temperature and low temperature
present.
– Electromagnetic effects are greater than
specifications in the technical data.
– Sensor defect.
1. Check proc. temp.
2. Check temperature range
S140 Working range P 20 8 – Overpressure and low pressure present.
– Electromagnetic effects are greater than
specifications in the technical data.
– Sensor defect.
1. Check the process pressure
2. Check the sensor range
S822 Process temp. 17 8 – The temperature measured in the sensor
is greater than the upper nominal
temperature of the sensor.
– The temperature measured in the sensor
is lower than the lower nominal
temperature of the sensor.
1. Check the temperature
2. Check the setting
S841 Sensor range 17 8 – Overpressure or low pressure present.
– Sensor defect.
1. Check the pressure value
2. Contact Endress+Hauser Service
Diagnostic
code
Error message XD_ERROR
Value
BLOCK_ERROR
bits
Cause Measure