Aeroflex 3500A - Page 159

Subject to Export Control, see Cover Page for details. 3-7
3-3. MAINTENANCE PROCEDURES
3-3-1. BATTERY RECHARGING
The Battery is equipped to power the 3500 / 3500A for five hours of continuous use, after which time,
the Battery needs recharging. The battery charger operates whenever DC power (11 to 32 Vdc) is
applied to the 3500 / 3500A with the supplied External DC Power Supply or a suitable DC power
source. When charging, the Battery reaches an 100% charge in approximately four hours. The
internal battery charger allows the Battery to charge between a temperature range of 5°C to 40°C.
Allow 20 minutes for battery to charge when turning 3500 / 3500A ON from a dead battery condition.
The Battery should be charged every three months (minimum) or disconnected for long term inactive
storage periods of more than six months. The Battery must be removed when conditions surrounding
the 3500 / 3500A are <-20°C or >60° C).
DESCRIPTION
This procedure is used to recharge the Battery in 3500 / 3500A with an External DC Power Supply.
WARNING
Do not recharge the Lithium Ion Battery Pack outside the 3500 / 3500A.
1. Connect the External DC Power Supply to the DC IN Connector on the 3500 / 3500A.
2. Connect the AC Power Cable to the External DC Power Supply and an appropriate AC power
source.
3. Verify the CHARGE Indicator is YELLOW.
If the CHARGE Indicator is RED, refer to Troubleshooting (para 3-2).
4. Allow four hours for Battery charge or until the CHARGE Indicator is GREEN.
If the CHARGE Indicator is YELLOW and/or the Battery fails to accept a charge and the
3500 / 3500A does not operate on Battery power, refer to Troubleshooting (para 3-2).
NOTE: The 3500 / 3500A may turn OFF whenever the External DC Power Supply (connected to
AC power) is plugged into 3500 / 3500A. This is a design behavior to prevent damage to
the lithium batteries. Performing the Steps above in order shown helps to avoid the
inadvertent turning OFF of 3500 / 3500A when External DC Power Supply is connected.
DC POWER
SUPPLY
DC POWER
SUPPLY
3500A
VWX
DEF
ABC
PQR
GHI
JKL
STU
MNO
YZ
±
3500
YELLOW
(CHARGING)
062-001b
(CHARGED)
GREEN
YELLOW
(CHARGING)
(CHARGED)
GREEN
(3500A)(3500)