Endress+Hauser Liquiline CM44P - Pending Diagnostic Messages

Diagnostics and troubleshooting Liquiline CM44P
158 Endress+Hauser
No. Message Factory settings Sensor
type
Tests or remedial action
S
1)
D
2)
F
3)
950 Process
temperature
F On On C Concentration table (conductivity)
Process temperature below the lowest
value in the table
‣
Extend table.
951 Process
temperature
F On On C Concentration table (conductivity)
Process temperature above the highest
value in the table
‣
Extend table.
952 Conductivity low F On On C Concentration table (conductivity)
Process conductivity below the lowest
value in the table
‣
Extend table.
953 Conductivity high F On On C Concentration table (conductivity)
Process conductivity above the highest
value in the table
‣
Extend table.
954 Concentration low F On On C Concentration table (conductivity)
Process concentration below the lowest
value in the table
‣
Extend table.
955 Concentration high F On On C Concentration table (conductivity)
Process concentration above the highest
value in the table
‣
Extend table.
983 Sensor ISE check F On On I Electrode or membrane defective
1. Check or replace electrode.
2. Check or replace membrane cap.
984 Process temp. high S On On I Temperature outside specification
1. Check process temperature.
2. Check electrode system.
985 Sensor Interface F On On I Sensor interface error
1. Check connector.
2. Check or replace cable.
987 Calibration
required
M On On I, DI Electrode replacement
‣
Calibrate sensor.
1) Status signal
2) Diagnostic message
3) Failure current
12.7 Pending diagnostic messages
The Diagnostics menu contains all the information on the device status.
Furthermore, various service functions are available.