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9. Troubleshooting
Symptom
dilution system "produces"
particles
dilution factor is not at nominal
value
pressure gauge indicator not on
zero with VKL turned off
V
V005-06-2020
ERSION
Presumable Cause
nozzle, mixing chamber dirty
filter malfunction
inside channels dirty
outlet flow higher than total flow
environmental air is sucked in
over pressure or under-pressure at the
samplich oocation. Humidity- or
temperature impacts
inlet nozzle dirty
absence of isokinetic conditions
zero pont shifted
O
M
VKL 10 /100
PERATION
ANUAL
Elimination
cleaning
exchange filter
flush, or general
overhaul at plant
increase pre-pressure
contact manufacturer
cleaning
take different outlet
nozzle, use correct
pressure
send in equipment
27
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