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The SIM-ALP2 can simulate a 2 wire 4-20 mA loop powered device, a 4 wire 4-20mA current source without an external power supply, or a 0-10VDC signal without an external power supply. Simulating is easy in 1 mA/V or 0.1 mA/V increments by simply clicking the up and down buttons.
17 mar 2021 · Many 4 - 20 mA inputs have a 250 Ω shunt resistor to convert 20 mA to 5 V. If this is what you are dealing with then you can simulate the transmitters with a PP3 style 9 V battery, a potentiometer, a limiting resistor and a multimeter in mA mode. It's very cheap and should suffice for testing.
4 sty 2015 · I'm trying to create a simple 4-20mA current loop simulator that I can control using a potentiometer. The idea is to hook up this circuit to an Arduino and use the Arduino's analog input to read in the current loop (by converting it into a 1-5V signal using a 250 ohm resistor).
4-20 mA simulator controllable by a PWM signal from a micro-controller, Raspberry pi, Arduino, Beaglebone etc. Characteristics. Galvanic isolation between PWM input and 4-20 mA loop. Voltage detection on 4-20 mA loop.
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This simulator generates a 4-20mA signal.
The SJE Rhombus® 4-20mA Simulator is an easy-to-use, hand-held test instrument designed to generate an adjustable 4-20mA signal from loop power. The output of the Simulator is adjusted across the full range by turning the adjustment knob.
