12.Calibrating

1. Enter Calibration mode. From the main reading screen, click the button twice in rapid succession to enter the menus.
2. Click the button until you see Calibrate.
3. Place the calibration cap over the Honeywell BW Solo, and hook the cap’s left clip to the corresponding groove of the detector and press down on the tab to snap the right clip into place.

4. If the hose is not connected to the calibration cap and the regulator on the calibration gas cylinder, attach it now.
5. Hold down the button, and release after it says, “Zeroing.” It performs a zero calibration.
6. When “Apply Gas” appears on the display, open the cylinder valve by turning the pressure regulator knob counterclockwise.

7. Start the calibration by pressing and holding the button for 1 second. The calibration is indicated by a progress bar, followed by “Passed” or “Failed.” You can abort the calibration by clicking the button once.

IMPORTANT!

If it fails calibration, try calibrating again. If it cannot calibrate after repeated tries, the sensor may need replacement or there may be a problem with the instrument. Do not use the instrument until the issue is resolved.

8. When “Turn Gas Off” appears, close the cylinder valve by turning the pressure regulator knob clockwise.
9. Remove the calibration cap by pulling on the tab.

IMPORTANT!

If the sensor does not pass a full calibration, the sensor may need replacement. Do not use the instrument until it passes a full calibration.