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Hello! I've analyzed the user manual for the B&K Precision Test Bench 389A Digital Multimeter. This manual covers a wide range of topics, including safety precautions, battery and fuse replacement, detailed specifications, and instructions for measuring voltage, current, resistance, capacitance, and frequency. I am ready to answer your questions about this device.
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How do I know when the battery is low?
What should I do if no current measurements are possible?
What kind of safety test leads should I use?
How can I return to autoranging mode?
How can I disable auto power off mode?
