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2-Wire, 3-Wire, and 4-Wire Transmitter

🎥 In today’s industrial automation, the 4 to 20 milliamp transmitters are used in a wide range of processes for monitoring many parameters such as temperature. You should know that several types of 4 to 20 milliamp transmitters wiring exist, and they can be divided into three categories: 2-wire, 3-wire, and 4-wire configurations. By watching this video, you’ll get the answer to these questions: - What is the function of a transmitter? - What is the definition of a transmitter? - What are the output signals of transmitters? - How to connect 2-wire transmitters to the PLC? - How to connect 3-wire transmitters to the PLC? - How to connect 4-wire transmitters to the PLC? - What are the 4-20 mA transmitters' wiring types? - What are the advantages and disadvantages of 2-wire current loops? - What are the advantages and disadvantages of 3-wire current loops? - What are the advantages and disadvantages of 4-wire current loops? ====================================================== 💬 Video Summary: - A transmitter is a device that senses the real-world signal from a sensor and converts it into the control signal. A broad range of voltage or current output signals is provided on transmitters. So far, the most frequent analog signal used in industrial applications is 4 to 20 milliamps. - You should know that several types of 4 to 20 milliamp transmitters wiring exist, and they can be divided into three categories: 2-wire, 3-wire, and 4-wire configurations. These current loops have three things in common: a transmitter, a power supply, and a receiving device such as a PLC. - In the 2-wire current loop, the current goes from the positive side of the power supply to the positive side of the transmitter. From there, the current goes from the negative side of the transmitter to the positive side of the PLC analog input. Then it goes back out of the negative side of the PLC analog input to the negative side of the power supply, and that will make our current loop. - In the 3-wire current loop, from the positive side of the power supply, we bring 24 volts to power up the transmitter. Then the transmitter generates its desired signal current, which is the 4 to 20 milliamp signal going to the analog input of the PLC. And as the common side of the transmitter and the common side of the PLC analog input are the same connection, this is the return path of the 4 to 20 milliamp signal. - In the 4-wire current loop by bringing the power supply voltage to the 4-wire transmitter, we make it operational. The positive polarity of the transmitter milliamp signal connects to the positive polarity of the PLC analog input. Also, the negative side of the transmitter goes to the negative side of the PLC analog input. ====================================================== ⏰ TABLE OF CONTENTS ⏰ 00:00 Transmitter Definition 01:16 4-20mA Transmitters Wiring Types 01:45 2-Wire Transmitters Connection to PLC 02:56 2-Wire Current Loop Pros and Cons 03:31 3-Wire Transmitters Connection to PLC 04:14 3-Wire Current Loop Pros and Cons 04:55 4-Wire Transmitters Connection to PLC 05:58 4-Wire Current Loop Pros and Cons ====================================================== 🔥 Have you seen our recent popular videos? You can watch them here: PLC Explained | Programmable Logic Controller:    • PLC Explained | Programmable Logic Co...   PLC Hardware Components:    • PLC Hardware Components   Potentiometer Explained:    • Potentiometer Explained   ====================================================== 💡 If you enjoyed this video and want to follow our upcoming videos, subscribe to this YouTube channel and relax your mind: https://bit.ly/3CTjbUi ====================================================== #Automatedo #transmitter #transmitter_wiring