3. How to open and close
3.1 How to open the housing
Locate the 4 clips (A B C D). Clips are covered by the front lter.
Clips can be seen when looking from the rear of the instrument, just below the front lter.
A.1
A
C
B D
A
A.3
B
C A
A.2
D B
A. Locate the clips
Repeat for remaining 3 clips. All 4 clips are now unclipped.
Front lter is slightly moved to the front on each corner. It can now be removed by hand.
C.1 C.2
Unclipped
Unclipped
C.3
D B
C A
C. Repeat with all clips
Place a at screw driver at the rst clip. Insert rmly unl the end of the clip space, and then turn gently the screwdriver clockwise approx.
45º (while sll pushing against the clip). The front lter will ‘move up’ and unclip itself. Clip is unclipped when the front lter corner moves
slightly to the front.
B. How to unclip one clip
B.1
B
A
B.2
B
A
B.3
B
Screw driver placed Screw driver turned
B
UnclippedClipped
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