EDN

4-20mA Current Loop Configurations and FAQ’s

Transmitters are available with either floating outputs (typically used in loop-powered applications) or with single-ended outputs (typically used in locally-powered applications). This application ...
EDN

4/20mA to 0/20mA loop current converter for grounded loads

These results suggest that the circuit delivers high accuracy, with error no higher than 0.5%, except with a 4mA input. The error and associated accuracy can be ...
Electronics Weekly

ARM Cortex M3 plus 24bit DACs for 4-20mA loops

Analog Devices has designed a high-resolution data acquisition chip for 4-20mA current loops around an ARM Cortex-M3 core. Called ADuCM360, the chip includes dual 4ksample/s 24-bit sigma-delta DACs ...
Electronics Weekly

Adding a digital interface to accurate 4-20mA loop

With an eye on factory automation, Maxim has released a reference design for a precision 4-20mA temperature transmitter with added data capability. The whole thing, branded Novato, is loop-powered, ...
Automation World

Whitepaper: Two-Wire Transmitters and 4-20mA Loops

A whitepaper that explains the proper way to use and install transmiters in a current loop is now available from Acromag. As the leading analog transmission standard for industrial I/O, the future ...
Automation World

Field and Panel Mount Loop-Powered 4 to 20mA Process Displays

The ProSense LPM1 series of loop panel meters offers a simple, low cost digital display of an analog 4-20mA signal. Models are available for mounting in a standard 1/8 DIN size panel cut-out with ...
The Engineer

4-20mA DC clamp meter forms part of Fluke Connect wireless test tools

Fluke has introduced a Current Clamp Meter measuring 4-20mA DC that wirelessly relays measurements to other Fluke Connect enabled master units or the Fluke Connect mobile App. The Fluke a3004 FC ...