Function 7 - Adjust Sensor Zero; Function 8 - Adjust Span - Honeywell IAQPoint2 User Manual

Using the Transmitter
How to Program the Transmitter
The 301W sensors are designed to be maintenance free and do not
require calibration. The following calibration procedures (Functions 7
and 8) are provided as an exceptional troubleshooting measure.

Function 7 - Adjust Sensor Zero

• Press pushbutton 1
• Press pushbutton 2, count 8 blinks and release.
• Begin emitting the calibration gas
• Press pushbutton 1.
Note: Never calibrate any unit's Zero with ambiant air. Always use
Nitrogen (N
Once this function has been executed, the LEDs will display the result:
Success: Both LEDs blink simultaneously 7 times, for three cycles.
Failure: LED 1 blinks 7 times, for 3 cycles while LED 2 blinks non-
stop throughout the cycles.

Function 8 - Adjust Span

Allows you to calibrate the sensor's span. Remember to begin emitting
the calibration gas before starting the calibration.
• Press pushbutton 1
• Press pushbutton 2, count 9 blinks and release.
• Press pushbutton 1.
Once this function has been executed, the LEDs will display the result:
Success: Both LEDs blink simultaneously 8 times, for three cycles.
Failure: LED 1 blinks 8 times, for 3 cycles while LED 2 blinks non-
stop throughout the cycles.
26
) at the calibration port to calibrate the Zero.
2
301W User Manual
Honeywell
511398
5/07