TSI Instruments Q-Trak XP - Page 69

Operation and Service Manual 55
As mentioned above, three measurements are necessary for %
Outside Air calculations - Outside Air, Supply Air, and Return Air.
The measurements may be taken in any order. The calculation is
performed once the final measurement is taken.
IMPORTANT
The Q-Trak™ XP instrument is intended for indoor use only. Care
should be taken when taking % of Outdoor Air measurements so
that the instrument is not exposed to rain, sleet, hail, snow or other
inclement weather conditions as exposure to these elements will
void the factory warranty.
1. Position the Q-Trak™
monitor outside to perform
the Outside Air
measurement, select
START, and wait until the
measurement is complete.
2. The % Outside Air page
shows the number of
outstanding readings needed
before a calculation can
be made.
3. Position the Q-Trak™
monitor in the supply vent to
perform the Supply Air
measurement, select
START, and wait until the
measurement is complete.
4. Lastly, position the Q-Trak™
monitor by the return vent to
perform the Return Air
measurement, select
START, and wait until the
measurement is complete.
5. If a measurement (Outside Air, Supply Air, or Return Air) needs
repeating select CLEAR then select START.
6. Once the measurements are complete, the % Outside Air is
calculated and shown on the bottom of the page.