Honeywell BW Solo User Manual 
 
41 
 
Invert the sensor so the three contacts are showing. Press the round part of the sensor into the 
sensor frame, aligning its notch with the matching part of the sensor frame’s back. Invert the sensor 
and stretch the O-ring around the perimeter of the sensor.  
 
Invert the sensor, and press the sensor all the way until it is fully seated in the sensor frame. 
 
Insert the sensor assembly into the instrument. 
 
    
 
Tighten the screws to secure the assembly in place. Do not overtighten the screws. 
      
Install a new filter over the sensor before replacing the cover. 
 
 
Sensor 
View 
Frame 
partway