Description of the signal inputs and outputs
36
Error number/error
message
Description, possible
causes
Reaction of the
device
Solution, trouble-
shooting measures
31 Fault dosing
pump 2
Dosing pump 2 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
33 Fault optics
LED1
Error in the optical unit
(light source defective)
Interval opera-
tion is stopped
Measurement
phase is can-
celled.
Change the measure-
ment chamber mount-
ing
27 Fault optics
LED2
Error in the optical unit
(light source defective)
Interval opera-
tion is stopped
Measurement
phase is can-
celled.
Change the measure-
ment chamber mount-
ing
82 Fault optics
BPW
Error in the optical unit (re-
ceiver defective)
Interval opera-
tion is stopped
Measurement
phase is can-
celled.
Change the measure-
ment chamber mount-
ing
80 Fault optics
Imin
Automatic zero-point ad-
justment at the lower stop
not possible
or
automatic zero-point ad-
justment at stop
Interval opera-
tion is stopped
Measurement
phase is can-
celled.
Avoid extraneous light
81 Fault optics
Imax
Automatic zero-point ad-
justment at the lower stop
not possible
or
automatic zero-point ad-
justment at stop
Interval opera-
tion is stopped
Measurement
phase is can-
celled.
•
Clean sight glasses
•
Change the meas-
urement chamber
mounting
34 Fault
Turbidity
The water is too turbid/
soiled
Interval opera-
tion is stopped
Measurement
phase is can-
celled.
Install an upstream wa-
ter filter
35 Fault soiling
The sight-glass windows
are soiled
Interval opera-
tion is stopped
Measurement
phase is can-
celled.
Clean the sight-glass
windows
37 Reagent low
Reagent stock has de-
creased to 10%
Interval opera-
tion is continued
See Reagent shortage
on page 37
12 Meas. range
exceeded
Measurement scope is ex-
ceeded
Interval opera-
tion is stopped
•
Check measuring
chamber and drain
hoses for correct in-
stallation/blocking
•
Are all plugs present
and sit correctly?