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ductor is positive and the inside is negative. When operating in DC mode, the
AC power switch on the rear panel is not functional.
The optional 9313 Battery Pack, available from Hart Scientific, can be used as
a portable power source for the 1504. It includes a 1.2 amp-hr 12V sealed
lead-acid battery, a DC power cord that plugs into the 1504’s DC input, a carry-
ing bag, and a battery charger. The battery pack can provide three to eight
hours of operation with each charge depending on whether the power saver fea-
ture is enabled (see Section6.6).
To recharge the battery, disconnect the battery’s plug from the 1504 and plug it
into the mating connector from the battery charger. Attach the charger’s AC
plug into an AC supply of the proper voltage (normally 100 to 125V AC, 50/60
Hz; optionally 200 to 230V AC, 50/60 Hz.). The charger takes about six hours
to fully charge the battery. The charger will stop charging automatically when
the battery is full.
NOTE: Certain precautions must be observed with the battery and
charger. These devices can present safety concerns if misused or damaged.
To avoid the risk of electric shock or fire do not use the charger outdoors
or in a dusty, dirty, or wet environment. If the cord, case, or plug of the
charger is damaged in any way discontinue its use immediately and have
it replaced. Never disassemble the charger. The battery may contain chem
-
icals that are hazardous. To avoid the risk of exposure to dangerous sub
-
stances or explosion, immediately discontinue use of the battery if it leaks
or becomes damaged. Never allow the battery to be shorted, heated, punc
-
tured, dropped, or squashed. Store the battery where it will not come into
contact with metal or fluids that might short circuit the battery and where
it will be safe from excessive temperatures. When no longer usable the bat
-
tery must be recycled. The battery may be returned to the seller for recy
-
cling. Do not dispose the battery in a landfill. Never dispose of the battery
in a fire as there is a danger of explosion which may cause injury or prop
-
erty damage.
13
4 Quick Start
DC Power Option
+
–
Figure 2 12 V DC power source polarity