Topcon GR-5, Operator'S Manual

Page: 51 / 202

Charging the Batteries
P/N 7010-1004
2-7
Charging the Batteries
About the Chargers
The power supply unit or the battery charging cradle can be used to
charge the batteries.
The power supply unit
(p/n 22-034101-01) charges the internal
batteries when connected to a grounded outlet (Figure 1-8 on page 1-
21). This unit converts the alternating current (AC) normally supplied
from an electrical outlet to a direct current (DC) used to charge the
batteries and/or power the receiver.
The power supply unit can be connected to the charging cradle or
directly to the GR-5. The power supply has the following
specifications:
• input voltage – between 100 and 240 V AC
• frequency of input power – between 50 Hz and 60 Hz
• output voltage – 12 V DC@2.5 A (30 W)
The battery charging cradle
(Figure 2-5) connects to a standard
power outlet using the power adapter cable and power cable/power
supply unit.
The charger has two ports, one button, and three LEDs.
• The two ports connect the charger to either a receiver or an
external power source. The ports charge or drain the batteries
simultaneously.
• The STATUS button activates the battery LEDs.
CAUTION
The power supply unit is designed for
indoor use only. Do not use it in damp or
wet environment. Do not expose the
power supply to rain or snow. It should
only be used for charging the batteries.
Do not use as a power source during
surveying.