4-20ma Current Loop Tester

This circuit injects an adjustable current through a wire loop.  Using a digital current meter, the current can be adjusted from near zero to over 24 milliamps.

Comments

Post a Comment

Popular posts from this blog

HIGH PASS ACTIVE FILTER COLLECTION

Image
This is a collection of inverting and non-inverting active high pass filter circuits.  I included one, two three, four and six pole filter circuits.  You can change the component value ratios shown to achieve any frequency cut-off you may need. The circuit does not specify an operational Amplifier.  The circuits should be used to select the needed resistor and capacitor components for a particular frequency knee and  slope.
Read more