Honeywell BW Solo User Manual
36
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.
13.
Replacing The Filter & Sensor
The sensor needs to be replaced when it is unable to be calibrated or behaves erratically. Also, the
filter should be inspected periodically, and it should be replaced if it shows signs of accumulated
dust, dirt, or debris.
13.1.
Filter Color Reference
One of the holes in the sensor cover has a clear plastic window. While the other holes allow
ambient air (and dirt, debris, etc.) to reach the filter, the window keeps the part of the filter under it
clean. As a result, it is easy to visually confirm that the filter needs replacement by simply
comparing the clean spot with the other spots.
13.2.
Removing The Cover
Remove the front cover by using the tab end of the calibration cap or a flat-blade screwdriver to pry
it upwards from the slot. This exposes the sensor with its filter attached.
Reference
Window
Reference
Window
Clean Filter
Dirty Filter
Sensor
with filter
Align tab
With slot
Insert tab
In slot
Press
Down
Pop up
Cover