rcross
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AD3 Voltmeter: 5V range shows lover value than 50V range
rcross posted a question in Test and Measurement
Setup: - power supply CH1 - set to 3.000V - voltmeter CH1 - set to 5V range, offset 0, atten X1 - V+ connected to 1+ Result: Voltmeter reads 2.6482V not changing. When voltmeter range is set to 50V, it reads 3.008V occasionally flipping to 3.010V, which is expected behavior. Why 5V range behaves this way? is 5V range really -2.5V:2.5V, so 3.0V is overvoltage?