Endress+Hauser Analytik Jena multi EA 5000 - Analytical Problems During TC Determination

Troubleshooting multi EA 5000
116
Error Possible cause Remedy
Smell of ozone ¡ Chemical ozone de-
composer old/inef-
fective
¡ Replace chemical
ozone decomposer
(→ "Replacing the
chemical ozone de-
composer" 149)
¡ Gas hoses on the
ozone generator
leaky or loose
¡ Check hoses
¡ Search for leak as
necessary with indi-
cator paper
¡ Device leaking or de-
fective
¡ Inform customer ser-
vice department
13.8 Analytical problems during TC determination
Error Possible cause Remedy
Scattering measurements ¡ Oxygen supply to the
module interrupted
¡ Check oxygen con-
nection, reconnect as
necessary
¡ Absorber clogged or
worn out
¡ Replace absorber,
see (→ "Replacing the
absorber" 148)
¡ Sample unsuitable for
vertical operation
mode (droplet forma-
tion)
¡ Use the horizontal
operation mode
¡ In vertical operation
mode: Quartz wool
not present or at the
wrong position in the
combustion tube
¡ Check the position of
the quartz wool, ad-
just as necessary
¡ Sample evaporates
before dosing
¡ Use a cooled sampler.
¡ Sample too viscous
too be drawn in with-
out air pockets
¡ Use the horizontal
operation mode and
dilute the sample, or
dose directly as a
solid.
¡ Inhomogeneous sam-
ple or sample con-
taining particles
¡ Homogenize sample
Very low measurement
values or no analysis sig-
nal
¡ Measuring gas con-
nection incorrect
¡ Check the measuring
gas connection
¡ Gas outlet flow im-
peded
¡ Check the "sample
out" connection for
unimpeded flow
¡ Oxygen supply inter-
rupted
¡ Check oxygen con-
nection, reconnect as
necessary