Welch Allyn MicroTymp® 4 Tympanometer
User Manual
DIR 80024157 Ver A Page 5
INITIAL SET UP
Place the cradle on a stable counter or table where it will be used. The location should be near a
properly grounded wall outlet. When placing the handset in the cradle make sure that the
connectors on the handset and cradle align.
POWER SUPPLY
The Welch Allyn MicroTymp 4 tympanometer is designed for continuous operation and is
powered by a rechargeable Nickel-Metal Hydride (NiMH) battery-pack which is fitted in the
instrument. If the instrument is placed onto its cradle the battery within it will be charged.
The mains adapter is supplied and specified as part of the equipment. Connect the output lead
from the adapter into the power socket on the rear of the instrument cradle. Switch on the mains
supply - the indicator on the adapter will illuminate green. The mains adapter is the mains
disconnect device and therefore the tympanometer should be positioned such that easy access
to the mains adapter is possible.
The output from the mains adapter is fitted with electronic circuit protection. In case of overload
the adapter will shut down and the indicator will be off. When the fault is cleared the adapter
will operate as normal.
The input to the mains adapter is protected with a non-replaceable fuse. If this fails, the adapter
will not operate and will need to be replaced. If a replacement mains adapter is required, please
contact your Welch Allyn distributor.
CRADLE CONNECTIONS
The cradle connections are labeled to ensure correct identification and connection as follows:
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