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Products => Test Equipment => Topic started by: KGB on May 15, 2015, 04:36:35 pm

Title: New HIOKI DT4255 model with fuse at voltage terminal
Post by: KGB on May 15, 2015, 04:36:35 pm

I do not see advantage of this. What do you think?

http://www.hioki.com/file.php?t=news&iid=3_59 (http://www.hioki.com/file.php?t=news&iid=3_59)

Title: Re: New HIOKI DT4255 model with fuse at voltage terminal
Post by: Vgkid on May 15, 2015, 05:17:35 pm

If it hsd current than I would see it, but voltage measurements typically have an input impedance of about 10meg ohms. It would take a high voltage to blow a fuse for that...

Title: Re: New HIOKI DT4255 model with fuse at voltage terminal
Post by: Lightages on May 15, 2015, 05:26:43 pm

Hmm, strange. I can only think this is to help prevent the kinds of accidents we have read about here with people getting severely burned or killed by connecting a meter across a circuit it wasn't rated for. There is currently no standard for this but it could help.