CR1000 Manual - Campbell Scientific

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Section 10. Troubleshooting Charging Regulator with Solar-Panel Test Disconnect any wires attached to the 12V and G (ground) terminals on the PS100 or CH100 charging regulator. Unplug any batteries. Connect the solar panel to the two CHG terminals. Polarity of inputs does not matter. Only the solar panel should be connected. Set the charging-regulator power switch to OFF. NOTE This test assumes the solar panel has an unregulated output. Solar Panel Test Set a voltmeter to measure DC voltage. Measure solar panel output across the two solar-panel 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 Vdc Yes No Remove the solar-panel leads from the charging circuit. Measure solar-panel output across the two leads. Is the output > 0 Vdc No The solar panel is damaged and should be repaired or replaced. Yes Is the voltage ≥ 17 Vdc No There may not be enough sunlight to perform the test, or the solar panel is damaged. 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 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 No Measure the voltage between the two pins in a battery-connection receptacle. Is the voltage 10.0 to 15.5 Vdc 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-Watt 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. Yes No See Adjusting Charging Voltage (p. 440) to calibrate the charging regulator, or return the charging regulator to Campbell Scientific for calibration. With the charging regulator still under load, measure the voltage between the two CHG terminals. Is the voltage > 15.5 Vdc Yes Obtain Repair Authorization The charging regulator is damaged and should be repaired or replaced. No Test Completed The charger is functioning properly. Remove the 50-Ω resistor. There may not be enough sunlight to perform the test. 438
Section 10. Troubleshooting 10.5.3.3 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 Warranty and Assistance (p. 3) for information on sending items to Campbell Scientific. 439
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CR1000 Measurement and Control Syst
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Assistance Products may not be retu
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Table of Contents Section 5. System
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Appendix C. Serial Port Pinouts C.1
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Appendix D. ASCII / ANSI Table Amer
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Appendix D. ASCII / ANSI Table Dec
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Appendix E. FP2 Data Format FP2 dat
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Appendix F. Other Campbell Scientif
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Index 1 12V Terminal...............
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Index Communications Memory Errors
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Index Expression...................
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Index IP Information...............
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Index PanelTemp....................
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Index Runtime Errors...............
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Index TCDiff ......................
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CR1000 Manual - Campbell Scientific

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