Diagnostics and troubleshooting
Liquiline System CA80PH
152
Hauser
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.
970 Curr. input overload
S
On
On
Current input overloaded
The current input is switched off due to overload
and reactivated automatically when a normal
load is present.
--> Check the connected device, the cable and the
connector
971 Current Input low
S
On
On
Current input too low
At 4 to 20 mA, the input current is less than the
lower error current.
--> Check the connected device, the cable and the
connector for short-circuiting.
972 Curr. input > 20 mA
S
On
On
Current output range exceeded
The connected device returns an error current
973 Current Input < 4 mA
S
On
On
Current output range undershot
The connected device returns an error current
974 Diagnostics confirm.
C
Off
Off
User has acknowledged the message displayed in
the measuring menu.
The diagnostics display is disabled in all
measuring menus until the next diagnostic
message occurs.
975 Device reset
C
Off
Off
Device reset
976 PFM value high
S
On
Off
Pulse frequency modulation: output signal
exceeded/undershot. Measured value outside the
specified range.
Reasons: sensor in air, air pockets in assembly,
incorrect flow to sensor, sensor fouled.
1. Clean sensor
2. Check plausibility
3. Adjust the PFM configuration.
977 PFM value low
S
On
Off
978 ChemoClean Failsafe
S
On
On
No feedback signal detected within the
configured period.
1. Check the application
2. Check the wiring
3. Extend the duration
990 Deviation limit
F
On
On
Redundancy: limit value of percentage deviation
exceeded
991 CO2 conc. range
F
On
On
CO
2
concentration (degassed conductivity)
outside the measuring range
992 pH calculation range
F
On
On
pH calculation outside the measuring range
993 rH calculation range
F
On
On
rH calculation outside the measuring range
No.
Message
Factory settings
Tests or remedial measures
Cat. Diag.
on/off
Error
current
Summary of Contents for Liquiline System CA80PH
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