8
LI0056 – Revision 28 May 2015
Removing the Microphone Assembly
The microphone is secured inside the front tube by a clamp and an M2 hex screw. When
positioned in the clamp with the M2 hex screw tightened, the microphone assembly
is properly secured. A guard ring below the protective grid ensures seating against the
inner surface
and
that the diaphragm is flush with the outer surface of the probe.
M-2 hex screw
Clamp
Upper inner surface of probe
housing
Guard ring
Diaphragm inside the protective grid is flush
with the probe’s outer surface
To remove the microphone:
1. Use a 1.5 hex key to loosen the M2 hex screw and gently pull the microphone
assembly out. The protective grid must be clear of the tube surface (see Fig. 7).
2. Pry the microphone housing loose from the clamp and pull it out of the probe.
M2 hex screw loosened to a level below the
inner surface
When pulled all the way down, there
is sufficient clearance to pull out the
microphone assembly
Fig. 6.
The microphone assembly secured by the M-2 hex screw and the clamp.
Fig. 7.
The microphone assembly ready to be pulled out. Notice the clearance above the protective grid.