Campbell CR3000 Micrologger, Руководство оператора

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Section 10. Troubleshooting
521
10.9.3.3 Charging Regulator with Transformer Test
The procedure outlined in this flow chart tests PS100 and CH100 charging
regulators that use ac/ac or ac/dc transformers as power source. If a need for
repair is indicated after following the procedure, see Assistance
(p. 5)
for
information on sending items to Campbell Scientific.
Charging Regulator with ac or dc Transformer Test
Disconnect any wires attached to the 12V and G (ground) terminals on the PS100 or CH100 charging regulator. Unplug any batteries. Connect the power input ac or dc transformer to the two
CHG terminals. Polarity of the inputs does not matter. Only the transformer should be connected. Set the charging-regulator power switch to OFF. Connect the transformer to mains power.
Transformer Test
Determine whether the transformer output is ac or dc voltage (labeling on the
transformer usually identifies the output voltage type). Set a voltmeter to read that
type of voltage. Measure transformer output across the two transformer leads by
placing a voltmeter lead on one CHG terminal, and the other lead on the other
CHG terminal. Is the output 17 to 22 volts?
Taking care not to short the
transformer leads, remove the leads
from the charging regulator. Measure
transformer output across the two
leads. Is the output 17 to 22 Vac /
Vdc? The transformer is damaged and
should be replaced.
No No
Yes Yes
Reconnect the power source
(transformer / solar panel) to the
CHG terminals on the charging
regulator. Measure the voltage
between the two CHG terminals. Is
the voltage ≥ 17 Vdc / Vac?
No
Yes
5 kΩ Load Test
1) Place a 5 kΩ resistor between a
12V terminal and a G (ground) terminal on the
charging regulator.
2) Switch the power switch to ON.
3) Measure the dc voltage across the resistor.
Is the measured voltage 13.3 to 14.1 V?
Measure the voltage between the two
pins in a battery-connection
receptacle. Is the voltage 10.0 to 15.5
Vdc?
No No
Yes Yes
50 Ω Load Test
1) Switch the power switch to
OFF
.
2) Disconnect the power source (transformer / solar panel).
3) Remove the 5 kΩ resistor
4) Place a 50 Ω, 1 W resistor between a
12V
terminal and a
G
(ground) terminal
on the charging regulator.
5) Reconnect the power source and then switch the power switch to
ON
.
7) Measure the voltage across the ends of the resistor.
Is the voltage 13.0 to 14.0 Vdc (13.3 if circuit just adjusted)?
8) Switch the power switch to
OFF
.
NOTE The resistor will get HOT in just a few seconds. After measuring the
voltage, switch the power switch to
OFF
and allow the resistor to cool before
removing it.
See Adjusting Charging Voltage (p.
522) to calibrate the charging
regulator, or return the charging
regulator to Campbell Scientific for
calibration.
Get Repair Authorization
The charging regulator is damaged
and should be repaired or replaced.
No
Yes
Test Completed
The charger is functioning properly. Remove the 50 Ω resistor.