TSI IAQ50 - Manual (Page 32)

32
Temperature and Humidity Calibrations
Adjustment Procedure
The temperature adjustment can add or
subtract a number of degrees. The range is
±9.99ºF (±5.55°C). Calibration can be done
in either ºF or ºC mode. Humidity adjust-
ment adds or subtracts a constant percent-
age. The range is ±12.0% relative humidity.
The procedure for field adjustment is as
follows:
Turn off the instrument, flip DIP switch #7
to “ON.” Turn the Model IAQ50 on again.
On the Model IAQ50, press and hold the
parameter key you want to adjust to enter
calibration mode. The display will begin a
countdown from 5 to 0. Release the key
when 0 is displayed. The top line of the
display will show the adjustment number
and the bottom line will show the actual
reading value. Use the
5 and6 keys to
change the adjustment number and press
READ
key to accept. The meter returns to
the measurement mode when the READ
key is pressed. You must press and hold
the parameter you want to adjust to access