54 FONIX FP40 Portable Hearing Aid Analyzer
TYPE OF AID COUPLER COMMENT
ITE, ITC MZ-1
BTE, or MZ-1
With custom earmold attached. (NOTE: Vents must be plugged.)
EYEGLASS
MZ-2
Without custom earmold attached, when a 3-mm horn earmold
is planned, use with the Ear-Level Hearing Aid Adapter that
normally snaps onto the HA-2, 2cc coupler.
MZ-3
Without custom earmold attached, when a conventional #13 tub-
ing) earmold is planned, attach a length of #13 tubing that corre
-
sponds to the length of the sound channel of the wearer’s earmold.
BODY* MZ-2 With snap-on receivers, use the MZ-2 without the Ear-
Level Hearing Aid Adapter attaced.
Figure 3.8A—Choosing the proper MZ coupler
Figure 3.8B—MZ-3 vs HA-2 comparison
