After the 20 second countdown, the
meter will enter a 30 second average
sample period. The immediate air
volume is displayed as measurements
are made, with the meter displaying
an average at the end of the 3 0
seconds. During the sample time, the
following screen will be displayed.
After the sample is complete, the meter will display the average volume
from your test area. To continue on to the next register, press “ENTER”
briefly, then move to the proper entrance method by pressing the
“LW-D-Area” button. The value last entered will be saved to reduce the
time required to measure air volume on multiple outlets that have the
same characteristics.
Diameter – Enter diameter using the inch scale, or divide diameter by
12 to convert inches to feet.
Free Area – Enter value direct from grill engineering data provided by
grill manufacture (recommended)
Total Volume – At the end of a test, the “Total Volume” button can be
pressed to display a total of all measurements made since entering this
mode. The display will show total volume with a number in the upper
left corner of the display to indicate the number of air outlets that have
been measured and that are being used for a total average volume. To
return to the last volume measurement press the “Total Volume” button
again.
Low-Battery
Two level battery indication:
Level 1: Battery indicator will flash at level 1. In this situation, the
meter will work normally, however users should prepare to
replace the batteries.
Level 2: Battery indicator will always display on the LCD. In this level
change batteries immediately.
11
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