BRUEL & KJAER 4184-A, Техническая документация инструкция, Страница: 46 / 52

Weatherproof Microphone Unit Type 4184-A – Supplement to Instruction Manual BE 1712 40
D.3 Mount Electrical Substitute for Microphones on the Built–in
Microphone Preamplifier
NOTE: Because the Microphone Type 4184-A is partly disassembled during this test, the test should only
be performed in a clean environment.
To mount Electrical Substitute for Microphone Cartrigte WA-0302:
1) Unscrew the base of the Type 4184-A microphone housing using Pin Wrench QA-0178 (Fig.D.5).
Fig.D.5
Base of
Type 4184-A
and pin wrench:
Unscrew counter-
clockwise
2) Remove the electronics assembly (consisting of actuator amplifier and preamplifier) from the
microphone housing by sliding it out (Fig.D.6).
Fig.D.6
Slide the electronics
assembly out of the
microphone housing
3) Gently place the electronics assembly (Fig.D.7) on a clean work surface.
Fig.D.7
Electronics
assembly
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