Instruction manual
Fyrite
 INSIGHT
 Plus Manual  Configuration 
0024-9487 Rev 2  53 
Setup Menu  Function 
lifespan is a function of its exposure to the target gas 
(CO in this case). Though the CO sensor is designed to 
be used in combustion environments having a fairly 
wide range of CO gas present, limiting unnecessary 
overexposure to CO gas can greatly increase the life 
expectancy of the CO sensor. In addition, it can 
shorten sensor recovery time after exposure. 
The Protect CO feature sets a protection threshold 
above which the analyzer’s pump shuts off, limiting the 
CO sensor’s exposure to the high levels of CO gas and 
its negative effects. Enter the Protect CO screen from 
the Setup Menu. Select the “ON” option and press the 
ENTER key. The CO threshold limit is displayed. Use 
the up and down arrows to modify the CO limit 
threshold value (in 100 ppm increments) before 
returning to the Main Menu. 
During combustion analysis, if the Protect CO feature is 
enabled and the CO reading equals or exceeds the CO 
Limit setting, the analyzer shuts off the pump and 
prompts the operator for a course of action. 
•  Continue (and risk sensor damage) 
•  Purge 
Continue Option:  
•  Pump starts.  
•  Future High CO warnings are suppressed until CO 
drops below 100 ppm. 
•  After CO drops below 10
0 ppm, the analyzer 
begins enforcing the current Protect CO threshold 
limit again. 










