21 Apr
2001
21 Apr
'01
3:03 a.m.
I need to test a device that uses sensors that send
back a signal using a
0-20MA current. anyone know of a source of a schematic to make something to
generate such in 1 ma increnemts? or have any tips???
How about a battery, a potentiometer, and a meter?
If you want something automated and fancy, many DACs are actually current
output devices that require current to voltage converters, just buffer and
use the current output. Try this, took just a couple weeks for mine to
arrive.
<http://www.dataq.com/edn>
Fill out a short form, business addresses only, and they ship you a free
serial port based I/O module, looks like both analog and digital stuff plus
their windows based software package. Looks like fun to me.