Description of the signal inputs and outputs
37
Error number/error
message
Description, possible
causes
Reaction of the
device
Solution, trouble-
shooting measures
38 Water low
Inlet pressure is too low
Interval opera-
tion is stopped
Measurement
phase is can-
celled.
•
Check the water in-
take
•
Connector at the in-
let valve is corroded
(valve is blocked)
•
Clean the filter sieve
and replace the
valve block
•
Remove the pres-
sure controller valve
body
•
Outlet valve blocked
or defective. Clean
or replace the valve
•
Inflow rate must be
at least 400 ml/min
39 Ext. light in-
fluence
External light penetrates
the measurement section
Interval opera-
tion is stopped
Measurement
phase is can-
celled.
•
Avoid sunlight
•
Hardware problem.
Send the device for
repair
66 Fault auto re-
move air
Automatic venting has
failed
Interval opera-
tion is stopped
Measurement
phase is can-
celled.
•
Possible causes can
be problems with the
dosing pump, optics,
cloudiness, dirt con-
tamination, analysis
error or water short-
age.
Reagent shortage
If the reagent stock is only sufficient for less than 50 analyses, the
100%
key flashes, the
Alarm
key lights up and the alarm relay
switches. The interval operation is continued.
The error can be acknowledged by pressing the
Alarm
key.
The
100%
key continues to flash.
Only after the bottle has been replaced, the
100%
key should be
pressed for more than one second.
If the reagent stock is depleted, the
100%
and
Alarm
keys light up,
the interval operation is stopped, and the error is recorded in the his-
tory. The alarm relay switches and reports the error to the master
controller.
When the bottle has been replaced, press
100%
key for more than
one second. This also clears the alarm.
flashes
lights up
lights up
