BRUEL & KJAER 4226 User Manual page 23

Fig.3.2
Inserting a microphone
To insert a microphone into the coupler and Adapter UA-1231 (Fig.3.2):
1) Turn the adapter in an anti-clockwise direction until the stop point is reached (approx. 340°
back from its fully tightened position).
2) Insert the microphone. Make sure it reaches the stop ring of the adapter.
3) Lock the microphone in place by tightening the adapter (turn it approximately ¼ to ¾ of a
of a revolution in a clockwise direction.
Fig.3.3
Type 4226 with its
coupler mounted on
the microphone of
Hand-held Analyzer
Type 2250
Removing UA-1231 Completely from the Coupler
1) Turn the adapter in an anti-clockwise direction until the stop point is reached (approx. 340°
back from its fully tightened position).
2) Continue turning the adapter in an anti-clockwise direction past the stop point (more finger
pressure is required to go past this stop point).
Loosen adapter until Insert microphone until
it reaches stop point it reaches the stop ring
(~ 340°)
CHAPTER 3
Operation
Tighten the adapter
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