multi EA 5000 Maintenance and care
133
} Place the combustion system in the vertical position.
} For nitrogen and sulfur determination in vertical operation mode: Ensure
that the quartz wool plug has been inserted at the proper place in the
combustion tube.
} Apply FAST connectors to the gas connections of the combustion tube.
NOTICE!For angled FAST connectors: Do not push the combustion tube
connections too far into the limbs of the FAST connectors. The gas flow
may be impeded otherwise.
} Insert the combustion tube into the combustion furnace. The bent gas
connection for hose 3 must be fit into the recesses on the furnace.
} Vertical operating mode:
Screw a screw cap with septum onto the combustion tube.
Press hoses 3 and 4 into the FAST connectors on the combustion tube.
} Re-insert the cover plate with hole into the top device opening.
Connect the autosampler or auto-injector.
} For horizontal operating mode:
Press hoses 3 and 4 into the FAST connectors on the combustion tube.
Carefully press the flame sensor (FS) onto the combustion tube connec-
tion. The connection is very fragile!
Move the combustion furnace into the horizontal position.
} Connecting the ABD:
Check the sealing element in the coupling piece of the ABD
for correct fit
and insert new a sealing element into the coupling if necessary.
ABD
Fasten the ABD with the coupling piece to the combustion tube.
Also see the "ABD
user manual".
} Open the gas supply at the pressure reducer.
} Close the pneumatic seal at the auto-protection valve assembly. Flip the
toggle switch down.
ü The combustion tube is now sealed in the auto-protection valve as-
sembly and ready for operation again.
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