4 to 20 mA signal

Here you will learn all about 4 to 20 ma signal transmission.

What is source and sink ?

Source and sink refer to the direction of current flow between an I/O point on an I/O module and the connected device. It is only relevant for DC circuits with positive and negative polarities because current flows both directions in an AC circuit. It is important to select a sink or source I/O module based on …

What is source and sink ? Read More »

Fundamentals of 4-20 mA Current Loops

Fundamental of 4-20 mA Current Loops In process control, there are different types of infinite process inputs. Thermocouples and RTDs provide direct temperature reading while digital signals such as Modbus   provide exacting control over process variables and display. Analog signals, where information about the process is transmitted via varying amounts of voltage or current, are …

Fundamentals of 4-20 mA Current Loops Read More »

Why 4 to 20 mA used?

Following are the reasons Why 4 to 20 mA used?​:- Current signals are often used in sensors because the current response is usually more linear than the voltage response. Current signals also typically provide a low impedance for sensors, with the benefit of better immunity to noise. Current signals can extend much further than voltage …

Why 4 to 20 mA used? Read More »

इंस्ट्रूमेंटेशन (Instrumentation) अब हिंदी में 

 

हिंदी यूजर, हिंदी में इंस्ट्रूमेंटेशन की नयी जानकारी के लिए हमारा टेलीग्राम चैनल ज्वाइन करे 

Google Search में किसी भी टॉपिक के बाद In Hindi अवश्य लिखे जैसे - " Pressure Gauge In Hindi"