23
ments, press the desired measurement
button. For example, if you wish to see
humidity measurements, press HUMID.
Press HUMID again to see dew point
readings. For the external RTD, press the
TEMP key. If there is no data for that
measurement type “-----” will be dis-
played. Press another measurement key
to view more data or press ENTER to
return to measuring mode.
Note: To view return air, supply air or
outside air data individually, you must
download to computer or print out the
values. %OA is reviewable on-screen.
Arrow Keys (56)
The two arrow keys are used to scroll
through and select values as needed for
Model IAQ50 functions. They are also
used while in field calibration mode.
On the Model IAQ50, pressing either 5
or 6 key on the start-up sequence while
baud rate, time or barometric pressure is
displayed will allow you to change