Operation Under Emergency Power

TM 5-6350-262-14/5

NAVELEX 0967-466-9050

TO 31S9-4-38-1 Chg 3

power alone for more than 24 hours-( 12 hours if battery

3-7. Operation Under Emergency Power

is two years old or if operating temperature is -20'F.). If

ac power is off for more than this specified maximum

The Control Unit automatically switches to its

the battery must be recharged as directed in chapter 7.

emergency battery power supply when primary ac power

Failure to do so may create a safety hazard.

fails. It should not be allowed to operate on battery

3-5

Change 3