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A 4-20mA current loop output or signal is a standard scale of testing and troubleshooting the industrial process control or monitoring devices like pressure transmitters, flowmeters, etc. The modern process parameter control instruments like Rosemount pressure transmitter work on highway addressable remote transducer i.e.; HART protocol. The circuit includes an electronic 2-wire system with 4-20mA current loop output.

Temperature transmitters are the devices used for temperature measurement and its display on the monitoring screen. These devices are often used for enhancing the integrity of process parameters. In industrial applications, there various types of temperature transmitters are utilized. Today, you can find various types of result-centric, cost-efficient, high-performance temperature transmitters. 

The calibration of the control valve positioner is a crucial process and must be done properly for the desired results. Do you know how to calibrate the control valve positioner? If not, then the post leads you through the important steps of control valve positioner calibration and more.

In the fluid transmission system, several types of devices are used to measure and control the process parameters. The flow meter and the flow transmitter are two important devices used in such systems. For some reason, these two devices are often considered the same. Sometimes their functions are interchanged. However, in reality, both these devices and their functions are quite different than each other. This post introduces the flow meters and the flow transmitters individually and helps you to understand the difference between these devices.

There are different types of pressure transmitters in use today. Absolute pressure transmitter and gauge pressure transmitter are two popular choices. Would you like to know more about them? This post discusses both pressure transmitters in detail. So, stay tuned.

A thermocouple sensor is one of the many types of temperature sensing devices used in measuring different variables in industry applications. They are often used for temperature measurement and control at gas turbine exhausts, diesel engines, high-temperature furnace operations, etc. This post discusses what thermocouples are and how do they work.

Absolute pressure transmitter measures pressure in a complete vacuum with no contents inside. The measurement taken in absolute pressure uses absolute zero as the reference point. So, here there is no comparison in terms of pressure changes or relativity. With such importance in many industrial processes, it is essential to understand the working of these transmitters along with their applications. This post discusses the same.

RTD sensors are known to be accurate in their readings and designed for stability in harsh environments. This means they are resistant to extreme temperatures, vibration, shock, and so on. This post discusses the details about RTD sensors, their working, and more.

The radar level transmitters are widely used for level measurements in different applications. There are two types of radar level transmitters – non-contact systems and contact systems. Before making a buying decision, it is important to understand these systems and their underlying technologies in detail. The setup and working principle were discussed in detail in the previous post. This final part of the two-part post gives insights about radar transmitter functioning technologies and its industrial significance in terms of applications.

Level sensing is an important requirement in industries that utilize different types of fluids for functioning. The increase or decrease in the levels of a fluid may alter the results of the end process, or may also adversely affect people and environment around. To avoid this, industry users rely on various types of level sensing devices such as level switches and level transmitters. These devices help users measure the level of fluids accurately and avoid untoward incidents. Although the aforementioned devices are designed to measure the levels of fluids in various applications, they differ in terms of their operation. What is the difference between a level switch and a level transmitter? How to choose the right device for your application? Read the post to find answers.