Although several ranges are used, the most popular is still the 4- to 20-mA standard. Loop accuracy depends on the transmitter’s ability to transform the sensor signal to a current.

The transmitter's programmable gain amplifier range allows full-scale inputs from 5 to 320 millivolts. Its all-analog signal path contains a built-in subregulator, voltage reference, input multiplexer ...

It’s based on pulse-width modulation to implement a cheap but accurate current-loop transmitter. A dual-channel isolator (E1-E2-Q1-Q2) provides galvanic isolation of the PWM input.

Specific applications for true RMS current transmitters include monitoring VFD controlled loads and accurately measuring phase angle- or burst-fired, time-proportioned SCR controlled loads.

To eliminate errors introduced by possible spurious current paths, the signal must be DC-coupled with full galvanic isolation, yet inserted with accuracy. The circuit of Figure 1 comprises a ...

The Current Transmitters Market is poised for substantial growth between 2022 and 2028, driven by the increasing demand for efficient power management and the integration of automation and control ...