PR electronics is now ready with a new 3100 unit

By releasing the brand-new 3186B Output loop-powered current isolator, PR electronics can now offer a full program of isolation amplifiers in the company’s 3100 series.

The new 3186B Output loop-powered current isolator measures active 4…20 mA input signals without the need of a power-supply by using advanced two-wire technology. 


3186 Frit

Other features include:


  • Low energy consumption
  • Low input drop (< 3 VDC) and fast response time < 5 ms
  • Signal 1:1 range 3.5...23 mA
  • Excellent accuracy, better than 0.05 %
  • Slim, 6 mm housing
  • Available in either a one-channel or a two-channel version


This product provides solutions for a wide range of process applications, allowing our customers to connect any active 4…20 mA signal from the field to any receiving active device, for example, an active PLC. Due to the low input drop (< 3 VDC), the 3186B also can be used to split an existing 4…20 mA loop, providing the customer with an additional 4…20 mA loop-powered output. Furthermore, even if the loop power to the PR 3186B is lost, the input loop will still function perfectly, making this module unique.


See product data sheet