Masterflex
Portable Sampling Drive Operating Manual
4-2
Section 4
Maintenance
DANGER:
NEVER apply AC voltages directly to the EXTERNAL POWER
INPUT receptacle on the front panel. The application of AC voltages
can result in injury and death of the operator and destruction of the
unit. Use only the AC/DC Power Supply/Converter supplied with the
unit to power unit from an AC source.
To Charge the Internal Battery With an External 12V Battery, the 07571-50
Automotive Power Adapter, or other DC Power Source
A.
Connect the
external power source by lifting the
EXTERNAL POWER INPUT
(A),
receptacle cover and inserting the 2.5 mm coaxial power jack into the
receptacle. (See Figure 1.)
B. Connect the 07571-50 Automotive Power Adapter accessory to the
cigarette lighter in the vehicle.
C. Place the Mode of Operation Selection Switch (C), (CHARGE/RUN)
to the
“CHARGE”
position.
D. The charge indicator will illuminate when charging circuit is powered.
E. The battery will fully charge in 8–12 hours from a fully discharged state.
Replacing the Internal Battery (See Figure 2)
A. Place all control panel switches in the off position and disconnect the AC/
DC Power Supply/Converter or other external power source if present.
B. Remove the fourteen (14) screws holding the control panel assembly to the
housing using a phillips screwdriver.
C. Gently remove the control panel from the housing and disconnect the wires
from the battery.
D. Remove the quick-disconnect terminals supplied with the replacement
battery and place them over the terminals of the old battery.
E. Using a 5/16 in nut driver, loosen and remove the four (4) nuts and bracket
holding the battery restraining bar in place.
F. Remove the battery.
Figure 2. Battery Replacement
Maintence
(Continue)
B
C
D
E
