Honeywell IAQPoint2 User Manual page 1341

Setting the Sensor Zero
This option allows users to calibrate the sensor Zero.
• Before starting the calibration (using
the programming menus), connect
the regulator to the gas cylinder.
• Adjust the flow rate to 0.1 L/min.
• Open the rubber cap on the
IAQPoint calibration port and
connect the tubing from the regulator
to the sensor, as shown.
• Let the gas flow for at least 10
minutes before starting the
calibration
• Scroll to the CO
• The next screen requests confirmation; Use the Up or Down buttons
to display YES and press Enter to confirm. (If there is no confirmation
within 32 seconds, the calibration is automatically canceled and
display returns to the main menu option.)
Never calibrate the sensor Zero with ambiant air. Always
use Nitrogen (N
sensor for at least 10 minutes before beginning and
continue throughout.
.
Set Zero screen and press Enter to select.
2
IAQPoint User Manual
). Make sure to release the gas to the
2
* Menu *
CO Set Zero
2
CO Set Zero
2
YES
Using the IAQPoint
Programming Menus
Calibration
Gas Cylinder
25