Maintenance and care
multi EA 4000 Version 01.16 85
8.2 Operation with C/S module
Maintenance intervals
Check ceramic tube for cracks and visible
damage, replace
every three months
Check and clean dust trap monthly (dependent on the incineration and
sample matrix)
Replace desiccant in the drying tube as required (blackening or clumping due to
moisture absorption)
Replace halide trap if half of the copper wool or the brass wool is
discolored
8.2.1 Check and replace the ceramic tube
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.
CAUTION
There is a risk of burning on the combu
stion furnace! Only remove the combustion tube
when the device is cold or allow the device to cool down sufficiently (preferably
overnight)!
Remove the ceramic tube
1. Arrange to have at least 75 cm of space to the right of the multi EA 4000. To do so, put
aside the FPG 48 or manual feeder.
2. Remove the hose for the oxygen supply from the gas airlock.
3. Grip the gas airlock and with a slight rotation pull the combustion tube out of the seal of
the dust trap in the rear of the combustion furnace.
4. If the tube moves freely, pull it out straight.
5. Unscrew the hexagon socket screws and dismantle the gas airlock. Slide the sealing
rings of the ceramic tube.
6. Remove the quartz wool from the ceramic tube.
7. If the ceramic tube is broken, open the dust trap on the rear of the furnace (see section
"Cleaning the dust trap" p. 86) and pull out the tube segment.
Caution!
The heating rods of the furnace must not be damaged when removing fragments!
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