Analytik Jena multi EA 4000 User Manual

Maintenance and care
multi EA 4000 Version 01.16 91
6. Flush the sulfuric acid container with a small amount of fresh sulfuric acid.
In case of heavy contamination flush it several times with distilled water and then al-
low it to dry completely.
7. Fill the sulfuric acid container with approx. 15 ml concentrated sulfuric acid and con-
nect it in accordance with section "Connecting the sulfuric acid container" p. 62.
8.3.2 Servicing/replacing the quartz glass combustion tube
WARNING! ELECTRIC SH
OCK!
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 ma
ins network.
WARNING
The concentrated sulfuric acid used as drying agent in the sulfuric acid container can cause
severe chemical burns!
Wear appropriate protective clothing when working at the sulfuric acid container.
CAUTION
There is a risk of
burning on the combustion furnace! Allow the device to cool down suffi-
ciently before removing the combustion tube!
CAUTION
Alkaline salts (hand perspiration) cause crystallizations in the quartz glass when heating the
combustion furnace which reduce th
e service life of the combustion tube.
Where possible do not touch the cleaned combustions tube with your hands. Wear protective
gloves to install the lock on the combustion tube.
If necessary, clean the combustion tube externally with Ethanol before ins
talling it in the
combustion furnace.
1. Switch the basic device off at the main switch, pull the mains plug from the mains
outlet and disconnect the gas supply.
1 fork clamp
2 oxygen supply connection
3 argon connection
2. Pull the glass olive out of the sulfuric acid
container. If using the safety container,
pull the hose of the safety container off the
bypass of the acid container.
3. Remove the fork clamp (1) and release the
spherical joint between the gas outlet of
the quartz tube and the sulfuric acid con-
tainer.
4. Carefully remove the acid container and
drain it.
5. Pull the gas hose off the gas inlet connec-
tion of the quartz tube (2).
If using the flame sensor unscrew it (see
also section "Connecting the flame sensor

Analytik Jena multi EA 4000 Specifications

General

Brand	Analytik Jena
Model	multi EA 4000
Category	Measuring Instruments
Language	English