Endress+Hauser Analytik Jena multi EA 4000, Operating Manual

Page: 74 / 151

Operation multi EA 4000
74
If the gas sluice has already been installed, the ceramic tube can also be inserted into
the basic device from the left-hand side via the opening of the dust trap.

For ease of handling first place the dust trap onto the ceramic tube.

Insert the combustion tube with dust trap into the furnace from the left. Insert the
tube up to the seal of the gas sluice.

Make sure that the drying tube is filled with magnesium perchlorate and quartz
wool is present in the lower part of the drying tube.

For C determination install the halide trap filled with copper and brass wool in the
gas path.

For S determination remove the halide trap and connect an empty U tube instead.
The halide trap binds some of the sulfur. For C/S determination the use of the halide
trap must therefore be considered. With low sulfur concentrations it is recommended
not to use a halide trap. With higher concentrations the halide trap should be installed
in the gas path.
Figure 43 Inspecting the halide trap and drying tube
1 Drying tube with magnesium perchlorate
2 Halide trap with copper and brass wool
for C determination
3 Empty U tube for S determination
6.2.2 Performing the C/S measurement
CAUTION
During the operation of the sampler and the manual sample feed there is a risk of
burns at the hot boat and ceramic hook! After pulling out of the furnace the boat and
hook remain hot for a long time.
Inspecting the halide trap
and drying tube