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DPF20 Frequency, rate, total or period counter
Instruction Manual
3.2
How to close the housing
A.1
A
B
D
C
A.3
A.2
D
B
C
A
Front filter
Internal View
Locate the 4 clips (A B C D) at the housing (image A.1) and the 4 matting clips at the filter (image A.2). With the instrument inside the housing,
face the front filter against the housing (do not clip yet). Do not press the rear terminals with your hand, as the instrument would force the
filter outwards.
A. Locate the clips
‘X’
B.1
Press ‘A’
Corner ‘X’ fitted
B.3
B.2
Corner ‘X’ fitted
Corner ‘Y’ can be
fitted or not fitted
Fully insert corner ‘X’ into the housing. See at image B.2 that the filter is not yet clipped : only corner ‘X’ is completely fitted. Corner ‘Y’ can
be also fitted or not fitted (it is not important). With corner X fitted and firmly pressed (it must remain fitted), press clip ‘A’ and it will clip (you
will hear a clear ‘snap’).
B. Fit corner ‘X’ and clip ‘A’
C.1
Press ‘B’
Corner ‘X’ fitted
1st
Press ‘C’
2n
Press ‘D’
Corner ‘X’ fitted
C.2
C.3
Still press firmly corner ‘X’ until all four clips are clipped. You can release your finger from clip ‘A’ as clip ‘A’ will not unclip once it is clipped.
Press on clip ‘B’ until it clips (you will hear a clear ‘snap’). Then press on clips ‘C’ and ‘D’ (you will hear a clear ‘snap’ on each case).
C. Clip remaining clips ‘B’, ‘C’ & ‘D’