Campbell Scientific RAWS-H Remote Automated Weather Station - Manual (Page 15)

RAWS-H Remote Automated Weather Station
FIGURE 5-1. 12 volt charger/regulator
5.2.2 Wiring
The leads from the RAWS connector panel “BATT CHARGER/SOLAR
PANEL” connector COLOR CODED PURPLE are wired to the CH100
“CHG” terminals. Polarity does not matter; either lead can be connected to
either terminal. The charge indicating diode should be “ON” when voltage to
the charging circuitry (CHG Terminals) is present.
An internal and/or external battery can be connected to the CH100 by means of
INT (Internal) or EXT (External) connectors. The battery red lead connects to
the positive battery terminal and the black lead connects to the negative
terminal.
Connect 12 V power to the datalogger and/or peripherals using
the “+12 and Ground” terminals. The ON-OFF switch applies
power to these 12 V terminals. NOTE
Reversal of battery polarity will damage the CH100 or
battery. WARNING
A battery must be attached for the CH100 to function
correctly as a power supply. CAUTION
It is possible to leave two batteries connected. The battery
connections are diode isolated; however, if one of the
batteries fails, it could draw all the charging current and the
other battery will be discharged. CAUTION
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