Bluetooth smart battery monitor / dc power meter (7 pages)
Summary of Contents for Thornwave Labs PowerMon-5S
Page 1
PowerMon-5S Bluetooth LE Advanced Battery Monitor / DC Power Meter – QUICKSTART GUIDE –...
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Package contents. The product has been shipped in a box containing the PowerMon-5S device, two wires, 3 female blade terminals and one 3/8” ring terminal. From the factory, all extra features are in the disabled state. No calibration has been applied to the current reading. If better accuracy is required, please read the “Calibration”...
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Read all the instructions and cautions before using the PowerMon-5S device. Thornwave Labs Inc does not assume responsibility for any injury or property damage caused by improper installation, bad wiring or use of PowerMon-5S outside of its intended purpose. The device should be installed by a professional.
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TERMINAL DESCRIPTION Type Name Terminal Description 10mm hex Battery positive. PowerMon-5S takes its power from bolt BATT+ this terminal. It also measures the voltage at this point. ¼” blade Battery negative. Usually also the chassis ground. male BATT- Connect using the supplied black wire.
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Use the supplied blue wire and female blade terminals (crimping may be required) • If the Thornwave Labs SSR is used, connect RELAY to the control terminal of the SSR Check all the connections again. Verify that the high current wires are tight. Use fuses or circuit breakers where applicable.
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Offset zero-ing • Because of the extremely low voltage drop across the shunt resistor that the PowerMon-5S must sense, offset is inevitable. If the current measurement displayed by the app is not zero even though the actual current is, this is called an offset. It can be zeroed.
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Symptom: The PowerMon app is not finding any device Possible Causes: • The PowerMon-5S device is not powered. Check if power is available in between the shunt and the black wire. Also make sure the black wire is connected to the left terminal (BATT-) •...
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