Troubleshooting
Instruction Manual AquaMaster
12745E/4
111
9.5
Prioritized fault messages and their effect on operation
PRIO (PRIORITIZED FAULT)
When there is a prioritized fault, the cause of the mal-
function is serious. If a prioritized fault occurs during
operation, it has the following effects:
Effects:
If an output for prioritized faults is programmed, it
is activated.
When the Prio message occurs, the color of the
status display changes to red and the text descri-
bes the prioritized fault in question.
Prioritized faults can be cleared only by a service
engineer.
Prio fault originating from the AquaMaster:
A prio fault of the AquaMaster sets all measuring
values to 0.
All current outputs go to the programmed electri-
cal current If fault.
All limits are deactivated.
Prio fault originating from the sensor:
A prio fault of a sensor/photometer sets the con-
cerned measuring values to 0.
The assigned current output goes to the pro-
grammed electrical current If fault.
The assigned limit is deactivated.
Example:
PRIO DEFAULT VALUES
The following prio error messages can be displayed:
PRIO MESSAGE
DESCRIPTION
POSSIBLE CAUSES
DEFAULT VALUES
The default values were
loaded.
If no parameters were initial-
ized or if all parameters were
lost, the default values are
loaded.
CRC EXPERTS
A fault was determined when
the expert data was checked.
Electromagnetic malfunctions.
Defect in the electronic system.
CRC USER
A fault was determined when
the user data was checked.
Electromagnetic malfunctions.
Defect in the electronic system.
CRC DISPLAY
A fault was determined when
the display data was checked.
Electromagnetic malfunctions.
Defect in the electronic system.
EXT RAM
A fault was determined when
the RAM in the graphic con-
troller was checked.
Defect in the electronic system.
Table 6: Possible prio error messages
