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2.6 INITIAL SETUP
Place the TM 262
TM
Auto Tymp
TM
on a stable counter or table where it
will subsequently be used, and near a properly grounded wall outlet.
Attach accessories to their appropriately-labled connectors on the rear
panel of the TM 262 (see Figure 2-9).
Locate the POWER switch on the rear panel of the TM 262 and move
the switch to the ON ( ) position. Note that the lamp (F1) on the front
panel is illuminated, indicating the TM 262 is receiving power. The
TM 262 symbol will then appear on the display along with a listing of
the revision number for the Tymp/Reflex and Audiometry (if purchased)
software. Next, the display will default to the Tymp/Reflex mode and
the probe’s green lamp will begin to blink, indicating that the TM 262 is
ready to begin a test. If both the green and yellow lamps are illumi-
nated at the same time, either the probe is occluded or the tymp/
reflex software did not properly initialize. Simply move the power
switch to the OFF ( ) position, inspect the probe tip for any signs of
an occlusion, and reposition the power switch to ON ( ). If both green
and yellow lamps are still illuminated and you are certain that the
probe is not occluded, contact the Welch Allyn Technical Service
Department (see page 55). In the meantime, it is still possible to
select the Audiometry mode (if purchased).
Allow the instrument to warm-up for about five minutes before conduct-
ing a test. This allows the electronic circuits to stabilize prior to use.
If the storage temperature is lower than the room temperature, allow
some additional time for the instrument to reach room temperature.
Warning
The TM 262 is designed to be used with a hospital grade outlet. Injury to per-
sonnel or damage to equipment can result when a three-prong to two-prong
adapter is connected between the TM 262 power plug and an AC outlet or
extension cord. Additionally, those TM 262 Auto Tymps that are equipped with
power transformers use a specific transformer (8000-0260, 8000-0261 or 8000-
0262) which should not be interchanged with any other transformer or supply.
The TM 262 is a specifically-calibrated device and the periodic service and
adjustments which the instrument may require should be done
only by an
authorized Welch Allyn service technician.
