A customer recently called to ask questions about the electrical system on his machine. I asked if he had a voltmeter. There was a long pause, then he said, “Yes, but I don’t know how to use it.” He ...

Measuring airflow has always been one of the more difficult and time consuming tasks a service person does. In fact, it is not generally done because it is too time consuming, requires special tools, ...

An ammeter is always connected in series with the component whose current you want to measure. This means it is placed ...