Troubleshooting
Instruction Manual AquaScat 2 P
11838E/2
57
The following warnings can be displayed:
WARNING
MESSAGE
DESCRIPTION
POSSIBLE CAUSES
V IN
The input voltage is outside the
permitted range (18-30 VDC).
The service voltage is faulty.
ADJUSTMENT
The adjustment of the instrument
could not be performed.
The instrument is soiled.
The set point for the ad-
justment does not match the
value of the sample.
CURRENT 1..8
Current output 1..8 is disturbed.
Terminals open.
Interruption of the current
loop of the reading output.
FLOW
(Name ext.in.)
A flow rate fault is signaled via the
digital input.
Flow rate incorrect.
HUMIDITY
The maximum permitted humidity
value in the measuring cell housing
has been exceeded.
Replace desiccant.
WATCHDOG
The internal error monitoring has
been actuated. The program has
been restarted.
Program crash.
9.3.2.
Error messages and their effect on operation
FAULT:
If an error occurs during operation, it has the fol-
lowing effects:
A fault is a malfunction which prevents
correct measurement value acquisition.
The measuring values go to 0.
The current output goes to the pro-
grammed electrical current
If fault
.
The limits are deactivated.
If an output for faults is programmed, it is
activated.
If the cause of the fault has been reme-
died, it is automatically deleted.
When the
Fault
message appears,
the
color of the status display changes to
red
and the error text describes what
the fault is about.
(Example:
FAULT
MEASURING FAULT)
