3-28 
 
3.11 Battery Check 
Tools required: 
  None. 
 
Function Test 
1.  If the patient monitor is installed with batteries, remove the batteries first. 
2.  Verify that the patient monitor works correctly when running powered form an AC 
source. 
3.  Insert two batteries per the procedures provided in the Operator’s Manual. 
4.  Remove the AC power cord and verify that the patient monitor still works correctly. 
5.  For T5 only: Remove one battery and verify that the patient monitor continues to work 
correctly. Verify that the patient monitor can also work independently from another 
battery. 
 
Performance Test 
Perform the test by referring to the Battery chapter in the Operator’s Manual and verify the 
operating time of the battery meets the product specification.