Maintenance of Batteries - TM-5-6350-262-14-50050

TM 5-6350-262-14/5

NAVELEX 0967-LP-466-9053

TO 31S9-4-38-1 Chg 3

(30) On newly installed equipment, place POWER

(10) Disconnect sensor intrusion alarm input wire

switch to OFF.

or jumper wire, as applicable, from terminal I of terminal

board E. Start stopwatch simultaneously with wire removal.

7-22.1 Maintenance of Batteries

(11) Observe TS352B VOM.

When voltage

indication drops to approximately 0.5 volt, stop stopwatch.

a. Description. The Control Unit contains I t chargeable

lead acid battery,; it is a 24-volt device with a 20 ampere-hour

Time on stopwatch indicates entrance time

capacity. Although the battery (contains wet cells, it is of the

delay.

scaled maintenance free type (no liquid maintenance

(12) If the entrance time delay is satisfactory,

required.) Internal low pressure: (2 psi) vent caps are provided

record time delay for future reference and proceed to step (17)

for each cell to minimize the probability of electrolyte leakage

to check or adjust exit time delay.

during shipment and handling.

(13) Reconnect wire which was disconnected in

b. Battery Storage and Recharging.

step (10). Do not tighten screw.

(14) Turn operating mode switch to TEST/RESET

(1) Since the battery is of the lead acid type, it

then to SECURE.

has a limited shelf life and requires recharging at periodic

(15) To adjust entrance time delay, rotate

intervals when in storage. If a spare Control Unit is available,

potentiometer A10R8 (fig. 7-2) clockwise to increase time

it may be utilized to periodically recharge stored batteries in

delay.

accordance with the instructions in d below. If no spare

(16) Repeat (10), (11), (13), (14), and (15) above

Control Unit is available then the recharging instructions given

until desired entrance time delay is achieved. Record time

in e below should be followed.

delay for future reference.

(2) At storage temperatures of 70-75 F.(21.1C-

23.88C.), the batteries will require recharging at intervals no

NOTE

longer than 6 months. The dates for recharge of a specific

battery are marked on the battery packing cases. If at all

Allow sufficient time between turning the

possible, the batteries should not be stored at temperatures

operating mode switch to SECURE and

above 80F.(26.66C.) for extended (longer than a few days)

disconnecting the signal wire for the exit

periods of time. High temperature storage will reduce the

time delay to expire (approximately 10 to

time between required recharges and may shorten the battery

90 seconds).

service life. If it is impossible to store the batteries at 7075

F.(21.11C.-23.88C.), then the batteries must be recharged

(17) To adjust the exit time delay, leave the sensor

at intervals specified in the following table, disregarding the 6

intrusion input wire or jumper wire disconnected.

month interval specified on the packing case. Batteries must

(18) Turn operating mode switch to TEST/RESET.

never be stored at temperatures above 100 F.(37.77 ) or

below -30 .(-34.44C).

(19) Turn operating mode switch to SECURE and

start stopwatch simultaneously.

(20) Observe TS352B VOM.

When voltage

Storage temperature

Maximum time between recharge

indication drops to approximately 0.5 volt, stop stopwatch.

70F. (21.11 .)

Subtract entrance time delay recorded in step (12) or (16)

6 months

from present reading to obtain exit time delay.

80F. (26.66 .)

5 months

90F. (32.22 .)

4 months

(21) If exit time delay is satisfactory, proceed to

100F. (37.77 .)

step (24) to restore equipment to normal condition.

3 months

c. Periodic Testing of Operational Batteries. Prior to initial

(22) To adjust exit time delay, rotate potentiometer

installation, the batteries should be fully charged and tested in

A9R6 (fig.

7-2) clockwise to decrease time delay or

accordance with the instructions in d and e below. Once this

counterclockwise to increase time delay.

initial charging and testing has been accomplished, the

(23) Repeat (18), (19), (20), and (22) above until

batteries should require no maintenance for a period of one

desired exit time delay is achieved.

year at ambient temperatures below 100 .(37.77 .), and six

(24) Disconnect TS352B VOM test leads.

months at temperatures above 100 .(37.77 .). At the

(25) Turn operating mode switch to TEST/RESET.

conclusion of these operating periods, the batteries should be

(26) Disconnect jumper wire between terminals L2-

retested in accordance with d below. Since the batteries have

1 and -4.

been operating in the equipment they do not require

(27) Connect sensor intrusion alarm input wire or

recharging prior to test. The tests in d below should thereafter

orange jumper, as applicable, at terminal E1.

be performed at six month intervals for items operating

(28) Close and lock door.

(29) Turn operating mode switch to SECURE.

Change 3 7-13