Figure 7
Figure 8
Figure 9
5.4.4 Using SÇ buttons, enter the
appropriate measurement in
inches. DO NOT PRESS
ENTER UNTIL STEP 5.4.6
5.4.5 TO MEASURE ROUND
GRILLS – after step 5.4.1
press the ENTER button
for more than 2 seconds,
until DIAMETER is dis-
played on LCD (Fig. 7);
then follow Steps 5.4.4
to 5.4.7.
5.4.6 Place the probe in front of
the unit's outlet so that the
sensor's cover is facing the
outlet. Press ENTER.
The VA500A will flash"WAIT"
for about 20 seconds.
Keep the probe in front of
the outlet's grill and when
"start average" begins to
flash; move the probe back
and forth across the unit's
outlet . (*See diagram
below step 5.4.7).
Make sure to cover the
complete area of the grill,
moving the probe at a rate of
speed to cover the entire grill
in less than 10 seconds. Go
back and repeat moving the
probe across the outlet for
one minute. At the end of
one minute the VA500A will
beep, signaling that the
measurement time has
ended.
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