8-26 
Message 
Alarm 
Priority 
Cause  Solution 
CO
2
 Overrange 
Low  The monitored value is 
out of the measurable 
range.  
1. Re-calibrate the CO2 module. 
2. Replace the CO2 module. 
CO
2
 Check Cal. 
Low 
 
1. Re-calibrate the CO2 module. 
2. Replace the CO2 module. 
 
8.3   Leak and Compliance Tests 
NOTE 
  Perform leak test after maintaining the anesthesia machine, replacing parts, or 
reconnecting tubes. 
 
8.3.1   Automatic Circuit Leak and Compliance Test 
1.  If the system is being powered on, the system automatically initiates a self-test and 
enters the Automatic Circuit Leak and Compliance Test screen. Or, from the main 
screen, select General > Test Leak/Compliance. Select Automatic Circuit Leak Test to 
enter the Automatic Circuit Leak and Compliance Test screen as follows.