Campbell Scientific CR1000KD CR1000 Measurement and Control System - Page 435
Power Supplies
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Section 10. Troubleshooting 10.5 Power Supplies 10.5.1 Overview Power-supply systems may include batteries, charging regulators, and a primary power source such as solar panels or ac/ac or ac/dc transformers attached to mains power. All components may need to be checked if the power supply is not functioning properly. Diagnosis and Fix Procedures (p. 435) includes the following flowcharts for diagnosing or adjusting power equipment supplied by Campbell Scientific: • Battery-voltage test • Charging-circuit test (when using an unregulated solar panel) • Charging-circuit test (when using a transformer) • Adjusting charging circuit If power supply components are working properly and the system has peripherals with high current drain, such as a satellite transmitter, verify that the power supply is designed to provide adequate power. Information on power supplies available from Campbell Scientific can be obtained at www.campbellsci.com. Basic information is available in the appendix Power Supplies (p. 564). 10.5.2 Troubleshooting Power at a Glance Symptoms: Possible symptoms include the CR1000 program not executing; Low12VCount of the Status table displaying a large number. Affected Equipment: Batteries, charger/regulators, solar panels, transformers Likely Cause: Batteries may need to be replaced or recharged; charger/regulators may need to be fixed or recalibrated; solar panels or transformers may need to be fixed or replaced. Required Equipment: Voltmeter; 5‐kΩ resistor and a 50‐Ω 1‐W resistor for the charging circuit tests and to adjust the charging circuit voltage. 435
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