Yup. That's exactly how we have to do it. You'll need a digital VOM but to get the needed accuracy, you'll want the 200 ma scale but the internal fuse will blow. If you start out on the 10 amp scale, you usually have to move the positive lead, so that breaks the circuit. If you have a 2 amp scale, that's fused, even that can blow because the current can exceed 3 amps for up to 20 minutes. Even if the fuse doesn't blow and you wait for the computers to time out, as soon as you switch to the lower scale, the switch will break the circuit for an instant before it makes the next connection. That's enough to wake the computers up again and start all over. Installing the jumper wire first, then the meter, will solve the blowing fuses. Then wait a half hour, then remove the jumper wire to take the reading. The meter doesn't have to be turned on to prevent breaking the circuit, just connected.
Monday, February 27th, 2012 AT 2:35 AM