TSI IAQ50 - Manual (Page 29)

29
especially important in applications where
strict calibration records must be main-
tained.
Send the instrument to TSI Instruments
Ltd. prepaid. Securely package your
instrument in a strong container sur-
rounded by at least 5 cm of suitable shock-
absorbing material. Include a purchase
order that clearly shows the instrument
model number and serial number, a
contact name, phone, fax number, and
RMA number. Mark the outside of your
shipping container with the RMA number.
This will expedite processing of your
instrument when we receive it.
Field Calibration
CO
2
Field Calibration Procedure
1. Turn the IAQ50 on and set the Baro-
metric Pressure to the current Baro-
metric Pressure. Be sure to use “station
pressure” which may be available at
the local airport. “Station pressure” is
not corrected to sea level.
2. Turn the IAQ50 off and flip DIP switch
#7 to ON.