Calibration; Calibration Prompt; Zero Calibration (Span Calibration For Oxygen) - Honeywell X4 Series Operating Instructions And Maintenance Manual

4. Calibration

note
Calibration should be carried out with fresh batteries.
Warning
Calibration cannot be carried out when the detector emits a low battery
alarm.
The calibration mode menu structure is shown in Appendix A (A-1 and A-).

4-1. Calibration Prompt

To enter calibration mode while in measuring mode, press the ON/OFF button 
times.
When "no" is selected, the calibration will be aborted. When "YES" is selected, the
calibration will be performed.

4-2. Zero Calibration (Span Calibration for Oxygen)

ZERO calibration must be performed in a clean atmosphere. It is recommended that
a ZERO calibration be performed daily or after any gas alarm.
• The detector will initiate a ZERO calibration showing a blinking ZERO
Calibration icon and a countdown from '00' to '000'.
• When the ZERO calibration has been completed successfully for all sensors,
the Test Pass icon
4
A "CAL no" prompt will be displayed.
Press the UP or DOWN buttons to alternate between "no"
or "YES" and press the ON/OFF button to select.
a
Countdown
will blink for 5 seconds.
or
X4 Series