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Dec 30, 2023 · NAMUR sensor is a proximity sensor developed to be used in industrial hazardous areas, where the risk of explosive gases or combustible dust is present or formed in the facility. In this article, we will take about the NAMUR sensors, how they work, and the advantages & disadvantages of using NAMUR sensors.
In a nutshell, NAMUR proximity sensors were developed to ensure safety in hazardous locations. NAMUR proximity sensors are used in classified hazardous location areas that have explosive gas, dust, or fibers present. NAMUR proximity sensors are considered Intrinsically Safe. So how does a NAMUR proximity sensor ensure safety?
It detects a metal object or "target" in its vicinity through changes in impedance. These sensors are powered by a nominal 8.2 VDC supply, sourced from a switch amplifier.
A NAMUR sensor is a non-amplified sensor that supplies two different signal levels depending upon switch state. These signal levels are low-level current. A logic interface circuit, controller, PLC, DCS, or intrinsically safe (IS) barrier is needed to read these current levels.
What are NAMUR Proximity Sensors? A NAMUR proximity sensor is a special type that follows the NAMUR standard for hazardous environments. It detects objects without touching them and is widely used in industrial automation.
Apr 27, 2020 · The acronym NAMUR identifies a family of proximity sensors having a completely different type of output from that of the common NPN and PNP sensors.
NAMUR sensors are two-wire sensors that represent the switch state via specific current values as defined in the EN 60947-5-6 standard. NAMUR sensors are usually connected to isolated switch amplifiers that interpret the current values of the NAMUR sensor and convert them into discrete switching outputs.
May 8, 2022 · A NAMUR sensor is a special type of proximity sensor. NAMUR sensors use a two-wire connecting cable instead of the typical three wires used by standard PNP or NPN sensors.
A NAMUR sensor is a non-amplified sensor that supplies two different signal levels depending upon switch state. These signal levels are low-level current. A logic interface circuit, controller, PLC, DCS, or intrinsically safe (IS) barrier is needed to read these current levels.
NAMUR sensor is a type of sensor used in automation and process control applications. It is designed to be used in environments with harsh conditions, such as high temperatures, high humidity, and exposure to dust and dirt.
