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5.2
Adjusting the flame
Where?
How?
EN
The size of the flame can be slightly adjusted by opening / closing the gas valve (3).
6. Cleaning / Maintenance
6.1
Cleaning
Caution:
Never clean the burner by boiling or steam cleaning!
Never use acetone when cleaning!
Do not blow compressed air into the hose connection or the mixing tube on the burner! This
could damage the safety valve.
Only the following parts may be cleaned with boiling water or steam cleaner once they have
been dismantled:
► Mixing tube (1, Fig. 1)
► Sensor holder (8, Fig. 1)
► Collection pan (7, Fig. 1)
When cleaning the external parts, please observe the following points:
• Only clean the burner once it is completely cool.
• Before cleaning, close the gas shut-off valve at the laboratory workbench (gas isolation valve).
• Do not use chemicals for cleaning.
• Never drill or unscrew the burner nozzle.
• The maximum cleaning temperature is 50 ºC (122 ºF).
6.2
Collection pan
The collection pan (7, Fig. 1) can be disassembled for cleaning.
6.3
Cleaning the mixing tube / sensor holder
Disassembly:
⇒ Using an allen key (10, Fig. 1), loosen the clamping screw (9) and sensor
holder (8).
⇒ Pull the sensor holder upwards.
⇒ Unscrew the mixing tube (1).
Cleaning:
⇒ Clean the mixing tube and sensor holder with boiling water or the steam
cleaner.
Assembly:
⇒ Screw the mixing tube back on.
⇒ Push the sensor holder over the mixing tube and sensor so that they sit approximately in the middle
of the upper part of the mixing tube (Fig. 2).
⇒ Position the sensor so that the upper edge of the sensor's brass sleeve and the upper edge of the
mixing tube are in line (Fig. 2).
⇒ Tighten the clamping screw in the sensor holder.
⇒ Carry out a function test.
knurled nut (4) on the mixing tube.
Soft flame:
turn the knurled nut (4) in an upward direction (air supply reduced).
Strong flame: the knurled nut (4) in a downward direction (air supply increased).
- 4 -
2
8
9
1
Fig. 2
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