Maintenance and care
94 Edition 01/2016 multi EA 4000
8.3.4 Servicing the measuring cells
Since the entry of warm reaction gases during the measurement results in the evaporation of
electrolyte components, it is recommended to replace the electrolyte solution daily:
1. Remove the used-up electrolyte.
2. Rinse the measuring cell and the magnetic stirring rod with water or ethanol.
3. Next carefully wipe the measuring cell and the magnetic stirring rod with cellulose to
remove any sliver chloride deposits present.
4. Re-fill the measuring cell with electrolyte (see section "Making the measuring cell avail-
able").
Observe the following notes:
If the system is decommissioned for several days, clean the measuring cell and
store it dry.
Check the outer sleeve of the magnetic stirring rod regularly for cracks. Metal ions
entering the electrolyte solution may interfere with the analysis.
Avoid the ingress of liquid into the stirring/cooling block and the plug-in contact (dan-
ger of short circuit).
8.3.5 Replacing the adsorption agent
1. Switch off the basic device and the Cl module from the
mains switch. Switch off the gas supply.
2. Pull the adsorption tube out of the holder.
3. Unscrew the screw caps from the glass tube.
4. Remove the cotton plugs and spill the adsorption agent.
5. Seal one side of the glass tube with cotton wool and fill
the adsorption agent.
6. Seal the glass tube with cotton wool.
7. Screw the filled adsorption tube back on finger-tight.
8. Press the adsorption tube back into its holder.
Caution:
Do not twist or kink the hoses.
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