I just want to add a rule - Don't always trust what the meter says. I took 1950 v from an electron multiplier supply because the meter read around 40 volts. There was a common failure mode of this supply that it would shut down to 40 v. Instead of walking around to shut it off before disconnecting the meter (after all the supply was dead right? ) I just disconnected the meter. Surprise the supply was good and the meter was dead. I almost was also. I had severe cramps in that arm and shoulder for almost 2 days. Dan