Replacing The Fine Safety Filter; Maintenance Work On The Bench-Top Unit; Emptying The Condensation Trap; Replacing The Coarse Filter - Siemens ULTRAMAT 23 Series Equipment Manual

10.2.5

Replacing the fine safety filter

To replace the filter, proceed as follows:
• Loosen the two lid screws on the back of the unit. Push the lid about 2 cm towards the rear
panel. You can then lift the lid upwards.
• Remove the hoses from the filter.
• Remove the old filter.
The filter must be disposed of as residual waste.
• Insert the new filter.
When installing the filter, make sure that the arrow on the filter points in the gas flow
direction.
• Push the cover back onto the housing and screw tight.
10.2.6

Maintenance work on the bench-top unit

10.2.6.1

Emptying the condensation trap

Proceed as follows:
1. Switch off the pump by pressing the <PUMP> key.
2. Loosen the condensation trap on the front of the analyzer by tilting it slightly, and pull
downwards carefully.
3. Empty the trap and dispose of the condensate according to the composition of the sample
gas.
4. Push the condensation trap on again from below.
Condensate in the analyzer
If condensate is spilled onto the analyzer during this process, it can penetrate into the analyzer
through gaps in the housing.
Such an analyzer is not suitable for measurements, and therefore must not be used any longer!
10.2.6.2

Replacing the coarse filter

Proceed as follows for this:
1. Switch off the pump by pressing the <PUMP> key.
2. Loosen the condensation trap on the front of the analyzer as described in section Emptying
the condensation trap (Page 171).
3. Remove the contaminated filter.
ULTRAMAT 23
Equipment Manual, 04/2022, A5E37100388-012
CAUTION
Service and maintenance
10.2 Maintenance work
171