Operation
52 Edition 01/2016 multi EA 4000
NDIR detector (C, S or C/S detection only): This assembly requires a run-in time of
approx. 15 min. after switching on the C/S module.
Coulometer (Cl detection only): run-in time of approx. 10 min.
During this time the indications of the components that are not yet ready for operation are
shown in red in the status window.
7.2 C/S measurement
7.2.1 Preparing the multi EA 4000 and C/S module
WARNING! ELECTRIC SHOCK!
Lethal voltages may occur in the combustion furnace. The combustion tube is part of the
cover of live components.
Therefore, only switch on the analyzer with the combustion tube inserted
! For conversion
and maintenance activities at the combustion tube or combustion furnace, always switch off
the analyzer from the mains switch and disconnect the multi EA 4000 by removing the mains
plug from the mains network.
Check the electric and pneumatic connections in accordance with section "Installing the multi
EA 4000 C/S" p. 122 ff.
Fit the ceramic tube to the gas airlock and insert it into the combustion
furnace
A ceramic combustion tube is used for the C/S measurements.
Caution: The ceramic tube is chamfered on one
side to center it for acceptance in the furnace.
The chamfered end is introduced into the fur-
nace. The airlock is attached to the end without
chamfer.
1. Fill the chamfered end of the ceramic tube
with quartz wool to a thickness of approx.
2.5 cm and push the cotton plug approx. 2
cm into the tube.
Caution: Do not push the quartz wool too
far into the center of the ceramic tube, be-
cause the wool clumps up at hot tempera-
tures.
2. Slide the contact pressure ring onto the end
of the ceramic tube without chamfer.
3. Slide the sealing ring approx. 3 cm onto the
ceramic tube.
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