Class 17th 09 19 Flashcards
What is a Digital Multi-Meter
A digital multi-meter (DMM) is a test tool used to measure two or more electrical values—principally voltage (volts), current (amps) and resistance (ohms). It is a standard diagnostic tool for technicians in the electrical/electronic industries.
What did digital multi-meters replace long ago and why?
Digital multi-meters long ago (1970s) replaced needle-based analog meters due to their ability to measure with greater accuracy, reliability and increased impedance
What do Digital multi-meters combine
Digital multi-meters combine the testing capabilities of single-task meters—the voltmeter (for measuring volts), ammeter (amps) and ohmmeter (ohms). Often they include a number of additional specialized features or advanced options