Description of the signal inputs and outputs
35
Error messages and troubleshooting
Temporary faults
If a water shortage or if water turbidity or dirt contamination occurs,
the
Alarm
key flashes. A further analysis is started after the time set
under “Interval pause after water shortage”
on page 29).
If the cause of the error has been corrected, analyses are performed
again with the set measurement interval.
If the error is still present, the
Alarm
button lights up and the device
goes into standby. The alarm must be acknowledged before a new
measurement is started.
Error messages
If the
Alarm
key lights up red or flashes, an error has occurred. For
most errors, no further analyses are performed (see table below).
The respective error is recorded on the SD card. The alarm relay
switches and reports the error to the master controller. As a result,
the service technician is called to the device and determines which
error is present either by reading the SD card or by using a computer
at the USB interface. Only after the error has been eliminated, the
alarm is acknowledged, and the device can perform analyses again.
Once an alarm has been acknowledged after an interval operation
has been stopped, the analysis can start.
Error number/error
message
Description, possible
causes
Reaction of the
device
Solution, trouble-
shooting measures
07
SD Card Fault
SD card defective or full.
No data logging is possi-
ble!
Interval opera-
tion is continued
Replace the SD card.
03 RTC bus error
The connection to the
clock is interrupted.
Interval opera-
tion is continued
The device must be re-
paired so that the time
stamp is correct.
04 RTC data
invalid
The device has been
switched off and the
clock’s buffer battery is
empty.
None
Replace the battery;
The date and time
must be re-entered via
the Service Monitor af-
ter the battery change.
30 Fault dosing
pump 1
Dosing pump 1 is defec-
tive
Interval opera-
tion is stopped
Measurement
phase is can-
celled.
•
Check the cable to
the pump to ensure
a correct connection
•
Replace the pump
and enter the new
run time
press
Acknowledging the
alarm:
flashes
lights up
