Current transducer 4 to 20ma output factory
#Current transducer 4 to 20ma output factory series#
A current loop permits other current operated devices such as a remote readout or a recorder to be put in series with the loop, within the constraints permitted by the loop's Compliance Voltage. A third advantage is the live-zero feature of the loop (the 4 mA low limit), which makes the loop self-diagnostic if there is a break or bad connection in the loop or a loop power supply failure. Another benefit is that the current loop has a low impedance and is not particularly susceptible to noise or EMI at large. A major reason is that the loop current does not vary with long field wiring, as long as the voltage developed in the loop, called the Compliance Voltage, can sustain the maximum loop current. All current-loop-based measuring systems use at least these four elements.Īn obvious question arises: Why use a 4-20 mA current loop to transmit the analog data from a sensor? The answer is that a 4-20 mA current loop offers several benefits for such sensor data transmission:
In a current loop, the current is drawn from a DC loop power supply, then flows through the transmitter using field wiring connected to a loop load resistor in the receiver or controller, and then back to the loop supply, with all elements being connected in a series circuit. A 4-20mA current loop circuit is shown in Figure 1. The 4-20 mA current loop has become the standard for signal transmission and electronic control in most analog control systems. The transmitter is typically configured so that one end point of the measurement value will correspond to 4 mA and the other end point value measured will correspond to 20 mA. The range of the loop current, 4 mA to 20 mA, is called the span of the transmitter.
The measurand value must be converted to current within the measuring device in such a way that the current in the loop will be proportional to the measurand value.
Sensors or transducers are usually designed to measure a range of values of the measured parameter, which is known as the measurand. This world class technology now comes to you at a very competitive price.ĪC line transducers are available as current, voltage in 1Ø configuration whereas power, frequency & power factor in 1Ø / 3Ø configuration.Understanding current loop output sensorsįor analog sensor data transmission, a 4-20 mA current loop is a very common method to convey the sensor data acquired. In addition to being most accurate, our transducers are equally preferred by OEMs/ end users to other makes for their excellent stability over a long period of operation. Hardware calibration is done through trim-pot.Īll transducers performs with exceptional accuracy, repeatability and reliability. It provides accuracy up to 0.25% FS with up to 2 KV isolation. Masibus make transducers are also available with dual output option. They can also be used with distorted waveforms where high accuracy is not required.Įlectrical Transducer are having its application to interface with RTUs. Transducers are calibrated to true RMS value of the sine wave. Output proportional to measured electrical parameter can be connected further to Controllers, Data-Loggers, PLC’s, Analog / Digital Indicators, Recorders for display, analysis or control.ĪC line Transducer series offers an economical and accurate means of current & voltage measurement on systems where the waveform is a pure sine wave. A corresponding linearized signal is then transmitted for various applications such as SCADA, S/S automation, remote indication etc. All electrical parameters such as Current, Voltage, Active Power, Reactive Power, Frequency and Power factor can be accurately measured using current transducer, voltage transducer, Active power transducer/watt transducer, Reactive power transducer, Frequency transducer and Power factor transducer respectively. Masibus manufactures high quality AC lines single function Transducer of various types to help you manage and conserve electricity.