Product Manual

Honeywell BW Solo User Manual
36
13.3. Replacing The Filter
If the filter appears dirty, replace it by peeling it off the sensor’s top surface. Peel a new filter from
its protective paper and gently press it so it adheres evenly to the top perimeter of the sensor.
If the sensor does not need to be replaced, reinstall the cover.
Reinstall the front cover (see 13.5).
13.4. Replacing The Sensor
The sensor is held in place with a sensor frame and its four screws.
CAUTION!
1. Turn off the instrument before replacing the sensor.
2. Only change the sensor in a safe area, free of hazardous gas.
3. Wear an ESD wrist or heel strap when replacing the sensor. Avoid touching electronic
components on the detector printed circuit board or shorting circuits on the printed circuit
board.
4. Use only the sensor specifically designed for the Honeywell BW Solo. Otherwise, the detector
will not monitor the target gas.
5. Ensure that the sensor cover is properly aligned to ensure a proper environmental seal.
6. After replacing a sensor, allow the new sensor to stabilize the following amounts of time
before use:
30 minutes: CO, H
2
S, CL
2
, H
2
, SO
2
, O
3
, PH
3
, NO
2
, ClO
2
, NH
3
10 hours: CO-H, HCN
12 hours: O
2
, ETO, NO
No warm-up time is required for the NDIR CO
2
sensor. However, the instrument requires 5
minutes of stabilization time before calibration.
Do not expose a sensor to vapors of organic solvents such as paint fumes or organic
solvents.
Aways calibrate the instrument after changing the sensor.