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2.4
Microphone care
Coupler microphone:
1) DO NOT twist the cable when attaching a coupler to the coupler microphone.
Turn only the coupler or unplug the coupler microphone before turning it.
2) DO store the coupler microphone in its mounting clip when transporting.
3) DO make sure that the 2cc coupler is tightly screwed to the coupler microphone
when performing hearing instrument tests. Coupler leakage can cause
feedback and erratic response curves.
4) DO ensure there are no cracks in the #13 tubing on the BTE (HA-2) coupler.
5) DO replace the tubing on the BTE coupler with 3/8" (10 mm) of #13 tubing.
Probe microphone:
1) DO NOT reuse probe tubes. Debris and liquid from cleaning attempts can
lodge in the enlarged base of the probe tube and subsequently clog the probe
microphone port.
2) DO NOT attempt to open or repair the probe microphone. Attempting to repair
the probe module may lead to damage or alteration of the factory calibration.
3) DO keep the probe module and probe tubes in a clean area.
4) DO stow the probe module when not in use or when transporting the RM500SL.
FastFacts 2.4: Microphone care
2.5
Battery pill use and care
Battery pills are optional. The thin connecting strip of each battery pill is
fragile. When inserting pills into hearing instrument battery compartments, take
care that this strip is not pinched or bent severely as the battery door is closed.
1) Select a battery pill that is appropriately sized for the hearing instrument that
you are testing.
2) Insert the pill into the hearing instrument, carefully closing the battery door over
the thin connecting strip.
3) Plug the pill's cable into the battery pill jack inside the RM500SL HIT test
chamber (to the left of the coupler microphone connection).
4) Turn the hearing instrument on.
FastFacts 2.5: Battery pill use and care
0611
RM500SL User's Guide Version 2.8
Page 12
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