Endress+Hauser Liquiline CA80SI - Page 118

Diagnostics and troubleshooting Liquiline System CA80SI
118 Endress+Hauser
No. Message Factory settings Tests or remedial action
S
1)
D
2)
F
3)
906 Cat.exchanger failure F On Off Invalid values for conductivity or flow
1. Check for valid measured values in the
menu of the mathematical function.
2. Check sensors.
3. Check minimum flow.
907 Cat.exchanger warning S On Off Limit values exceeded for conductivity or flow.
Possible reasons:
• Resin depleted
• Blocked pipe
‣
Check application.
908 IEX capacity low M On Off The capacity of the exchange resin will soon be
exhausted.
‣
Schedule resin regeneration or replacement.
909 IEX capacity exhausted F On Off The capacity of the exchange resin is exhausted.
‣
Regenerate or replace the resin.
910 Limit switch S On Off Limit switch activated
930 No sample F On On Sample flow interrupted during aspiration
• Suction line blocked or leaking
• No inflow of sample
1. Check suction line and suction strainer
2. Check inflow of sample
937 Controlled variable S On Off Controller input warning
Status of the controller variable is not OK
‣
Check application
938 Controller setpoint S On Off Controller input warning
Status of set point is not OK
‣
Check application
939 Control. disturbance S On Off Controller input warning
Status of disturbance variable is not OK
‣
Check application
940 Process value S On Off Measured value out of specification
Uncertain measured value.
1. Change the measuring range
2. Calibrate the system
941 Process value F On On Measured value out of specification
Invalid measured value.
1. Change the measuring range
2. Calibrate the system
951 -
958
Hold active CH1 .. C On Off Output values and status of the channels are on
hold.
‣
Wait until the hold is deactivated again.
961 -
968
Diagnostic module 1
(961)
...
Diagnostic module 8
(968)
S Off Off Diagnostic module is enabled
969 Modbus Watchdog S Off Off The device did not receive a Modbus telegram
from the master within the specified time. The
status of Modbus process values received is set to
invalid