Duspol voltmeter

[markm6164]

I have just completed training for new Hybrid vehicles. The two required tools, required as standard, to test the system are the Fluke 1503 and the Duspol Lc volt meter. The fluke I understand but what's special about the Duspol? What's your opinion on it? All the meters they could of chosen why this? Also the li-ion high voltage battery pack can be 350v and the Duspol requires two hands to use and is bulky in the hand. I'm sure there could of been a better choice?

[128er]

Hi markm6141,

I don't know much about the requirements for hybrid cars. But one big difference between the two devices is the input impedance. The Fluke has 3 MOhm input impedance and there seems to be no LoZ function. Most of these Duspol type meters have fairly low input impedance. 175 kOhm for the Duspol LC. Good to reduce "ghost voltages" and to avoid false readings.

That was the first thing that came to my mind. And with the switches on the Duspol you can even lower the input impedance more. You can discharge capacitors with that, or reduce ghost voltages even more.