Campbell Manufacturing CR10 Manual De Usuario
SECTION 14. INSTALLATION AND MAINTENANCE
14-5
charging source is interrupted. The PS12LA
specifications are given in Table 14.3-2.
specifications are given in Table 14.3-2.
The two leads from the charging source can be
inserted into either of the CHG ports, polarity
doesn't matter. A transzorb provides transient
protection to the charging circuit. A sustained
input voltage in excess of 40 V will cause the
transzorb to limit voltage.
inserted into either of the CHG ports, polarity
doesn't matter. A transzorb provides transient
protection to the charging circuit. A sustained
input voltage in excess of 40 V will cause the
transzorb to limit voltage.
Some solar panels are supplied with a
connector, this connector must clipped off so
the two wires can be inserted into the two
terminal ports. It is recommended that these
two leads be stripped and tinned.
connector, this connector must clipped off so
the two wires can be inserted into the two
terminal ports. It is recommended that these
two leads be stripped and tinned.
The red light (LED) on the PS12LA is on when
a charging source is connected to the PS12LA
CHG ports. The switch turns power on and off
to the 12 V ports, battery charging still occurs
when the switch is off.
a charging source is connected to the PS12LA
CHG ports. The switch turns power on and off
to the 12 V ports, battery charging still occurs
when the switch is off.
CAUTION: Switch the power to "off" before
disconnecting or connecting the power
leads to the Wiring Panel. The Wiring
Panel and PS12LA are at power ground. If
12 V is shorted to either of these, excessive
current will be drawn until the thermal fuse
opens.
disconnecting or connecting the power
leads to the Wiring Panel. The Wiring
Panel and PS12LA are at power ground. If
12 V is shorted to either of these, excessive
current will be drawn until the thermal fuse
opens.
The external port, labeled EXT, is not meant to
be used with the PS12LA. The primary power
source is the charging source, and the
secondary power source is the internal lead
acid battery. Connecting a lead acid battery to
the external source is the same as connecting
two lead acid batteries in parallel, causing one
battery to drop voltage and the other to raise
voltage. Alkaline batteries connected to the
external port must have a diode in series to
block charging which would cause an
explosion. (The PS12ALK battery pack has this
diode.)
be used with the PS12LA. The primary power
source is the charging source, and the
secondary power source is the internal lead
acid battery. Connecting a lead acid battery to
the external source is the same as connecting
two lead acid batteries in parallel, causing one
battery to drop voltage and the other to raise
voltage. Alkaline batteries connected to the
external port must have a diode in series to
block charging which would cause an
explosion. (The PS12ALK battery pack has this
diode.)
Monitor the power supply using datalogger
Instruction 10. Users are strongly advised to
incorporate this instruction into their data
acquisition programs to keep track of the state
of the power supply. If the system voltage level
consistently decreases through time, some
element(s) of the charging system has failed.
Instruction 10 measures the voltage at the 12 V
port, not the voltage of the lead acid battery.
External power sources must be disconnected
Instruction 10. Users are strongly advised to
incorporate this instruction into their data
acquisition programs to keep track of the state
of the power supply. If the system voltage level
consistently decreases through time, some
element(s) of the charging system has failed.
Instruction 10 measures the voltage at the 12 V
port, not the voltage of the lead acid battery.
External power sources must be disconnected
from the CR10 and charging circuit in order to
measure the actual lead acid battery voltage.
measure the actual lead acid battery voltage.