4-20mA Current Loop Basics

Troubleshooting Current Loops with Voltage Measurement
  • Control Systems

Troubleshooting Current Loops with Voltage Measurement

Sometimes ammeter or current measurement with multimeter is unavailable at work locations , we can still perform useful troubleshooting measurements…

5 years ago
  • Control Systems

Basics of Loop Powered Devices

What are Loop Powered Devices? A lot of loop setups will utilize an external power supply in order to power…

6 years ago
  • Control Systems

Troubleshooting a 4-20mA Current loop

The basic layout of every 4-20mA loop consists of a power supply, a transmitter, and passive loop devices. The supply…

6 months ago
  • Instrumentation Design

Why 4-20 mA Standard is so popular ?

4-20 mA Standard 4-20mA has an inherent ‘live zero’. Zero engineering units is 4.0mA, not 0.0mA. 0.0mA indicates an open…

5 years ago
  • Control Systems

Why Use a Current Loop?

4-20mA current-loop circuit have four individual elements: a sensor/transducer, a voltage-to-current converter, loop power supply and a receiver / monitor.

6 months ago
  • Basics

Basics of 4-20mA Current Loop

The 4-20 mA current loop is a very robust sensor signaling standard.  Current loops are ideal for data transmission because…

5 years ago
  • Control Systems

Basics of 4 to 20 mA analog Signals

The most popular form of signal transmission used in modern industrial instrumentation systems is the 4 to 20 mA current…

6 months ago