I'm using a USB 6210, I want to measure 480v ac, I can't seem to find a step down X-former to do the job, Please help.

[Russellg]

I'm using a USB 6210, I want to measure 480v ac, I can't seem to find a step down X-former to do the job, Please help.

[ramses64]

Hi,

You can use this product : http://docs-europe.electrocomponents.com/webdocs/03e2/0900766b803e2456.pdf

Not exactly what you're looking for for two reasons :

1) the input is only up to 370V AC

2) the output is 4-20mA (but can easily converted to voltage using a precise resistor)

But i think that the product you're looking for is in this direction !

Hope it will help you !

best regards,

[johnsold]

Russellg,

Standard instrument potential transformers are rated for 120 V output, nominal.  You would need to have about a 5 V, nominal transformer.  If you just need rms values and do not have a high speed requirement a voltage transducer may be appropriate.

What is your accuracy and bandwidth requirement?

Lynn