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Chapter 7
Push To Test Modification
General Information And Operation
7-1. General
THIS MODIFICATION HAS BECOME STANDARD EQUIPMENT FOR EACH OF OUR
UNITS. BOTH MILITARY AND CIVILIAN CLIENTS HAVE FOUND THIS MODIFICA-
TION TO BE CRITICAL TO THEIR OPERATION. THE PUSH TO TEST BUTTON IS
USED TO INDICATE THE CAPACITY OF THE POWER CELLS WITHOUT APPLYING AC
INPUT POWER. IT ALLOWS THE END USER TO CHECK THE STATUS OF THE POWER
CELLS. THIS LETS THE OPERATOR KNOW IF THERE IS ENOUGH POWER TO PER-
FORM ANOTHER ENGINE START, OR IF THE UNIT HAS TO BE RETURNED TO AC
POWER TO ALLOW IT TO RECHARGE.
7-2. OPERATION
1) MAKE SURE THAT YOU WAIT AT LEAST 2 MINUTES AFTER AC POWER IS APPLIED, OR
DC POWER IS EXTRACTED FROM THE UNIT, BEFORE YOU DEPRESS THE PUSH TO TEST
BUTTON. THIS WILL ENSURE A CORRECT READING.
2) WITHOUT AC POWER INPUT OR DC POWER OUTPUT, SIMPLY DEPRESS THE PUSH TO TEST
BUTTON ON THE FACE PLATE AND HOLD FOR APPROXIMATELY 15 SECONDS.
3) AT THIS TIME THE LED BAR GRAPH SHOULD LIGHT UP INDICATING THE STATUS OF
THE POWER CELLS.
4) THE FAN SHOULD ALSO OPERATE AT THIS TIME. IF YOU DO NOT HEAR THE FAN
RUNNING, STOP DEPRESSING THE BUTTON AND CHECK FOR ANY OBSTRUCTIONS TO THE
FAN.
5) NEVER DEPRESS THE PUSH TO TEST BUTTON WHILE THE UNIT IS PLUGGED INTO AC
POWER FOR RECHARGE, OR PLUGGED INTO AIRCRAFT FOR DC POWER OUTPUT.
6) NEVER DEPRESS THE PUSH TO TEST BUTTON FOR MORE THAN 30 SECONDS. THIS MAY
CAUSE A TEMPERATURE SENSOR TO TEMPORARILY DISRUPT PUSH TO TEST FUNCTION. (IF
THIS SENSOR IS TRIPPED, ALLOW TEN MINUTES FOR UNIT TO COOL BEFORE OPERATING
PUSH TO TEST BUTTON.)
7-1
STATUS
R
Y
G
0
1/2
OK