
multi N/C pharma UV
Fault removal
93
Water traps clogged
Cause
Remedy
Lifetime exceeded (renewal after 6 month
recommended, matrix dependent)
Measuring of samples with strong aerosol generation
Peltier cooling insufficient – simultaneous error
message in the window
System state
– temperature
out of range
Replacement of the water traps (see section "Replacing
the water traps" p. 74)
inform Service
Minimum sample volume > cup volume
Cause
Remedy
sample volume selected too large
number of measurements too high
check configuration in the method:
sample volumes
wash volume
adjust number of detections (repeat measurements) to
the cup volume
Rinse water insufficient
(for sample supplied with sampler)
Cause
Remedy
rinse reservoir insufficient
check configuration in the method:
reduce rinse volume
reduce number of backwash cycles
Scattering measured values
Cause
Remedy
metering faulty
metering syringe leaking
check metering
bubble free sample drawing
check that sufficient sample is available
install new metering syringe
added reagents unstable
bubble free drawing of the reagent(s)
consider blank value
modify purge flow for reagents
check that sufficient reagents are available
insert hose deep enough into the container
sensitive samples
prevent introduction of CO
2
or organic vapors from the
ambient air
cover sample cups on sampler with aluminum foil
for manual measurement do not aerate the head room of
the sample container with N
2
/Ar
check the environmental conditions
remove the source of interference
drift NDIR basic
unsuitable integration criteria
measurement is canceled too early
check the settings
increase the maximum integration time
inhomogeneous sample matrix
filter samples prior to analysis
notify application of Analytik Jena GmbH (stir sample, use
sampler with stirrer)
Содержание Analytik Jena multi N/C
Страница 1: ...Operating Manual multi N C pharma UV TOC Analyzer...
Страница 6: ...Contents multi N C pharma UV 6...