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14 \ USER OPERATION MANUAL: Purair Basic Series
» Remove the attaching screw from the
meter.
» Push the screw into the screw hole from
the outside of the enclosure.
» Align the meter to the screw from the
inside of the enclosure.
» Tighten the screw to secure the meter
in place.
NOTE: The meter is now ready to take read-
ings. It is pre-calibrated. If the vane becomes
damaged, it is easily replaced with the spare
vane. The vaneometer is accurate to ± 5%
of full scale from 0-100 fpm and ± 10% from
100 fpm to 400 fpm. The permanent mount-
ing bracket provided in the box is not used.
16. Removable yellow caps are provided in
the rear wall of the enclosure to allow
cables and hoses to be fed inside of the
enclosureasrequired;rettheyellow
caps when the holes are not in use.
17.Tocalibratethelterblockagealarm(see
Calibration - page 26), use a small Phillips
screwdriver to adjust the screw inside the
calibration port. NOTE: Adjustment screw
is made of nylon, so please use care not
to damage the screw.
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