What are NAMUR inputs?
The NAMUR input module is a special PLC digital input module that acts like a barrier and amplifier for a NAMUR sensor. It delivers limited power (limited voltage and limited current) to the NAMUR sensor, and is able to interpret the low-level output signal of the sensor to detect its state.
What is NAMUR type?
NAMUR is a type of sensor output that gives an on or off indication. There are different reasons why you may need a NAMUR sensor. I will go through some of them here. First, some information about NAMUR. NAMUR is a German acronym for (normenarbeitsgemeinschaft für Mess- und Regeltechnik in der Chemischen Industrie).
What are NAMUR standards?
NAMUR is an acronym for the User Association of Automation Technology in Process Industries, which provides an industry-wide standard for automated valve technology.
What is NAMUR solenoid?
A NAMUR solenoid valve is directly mounted to pneumatic actuator inlet/outlet ports. The function of a NAMUR solenoid valve is to control media flow: the valve itself is controlled by an electric solenoid, which opens or closes the valve, by controlling the amount of air thru a pilot to the pneumatic actuator.
What is NAMUR actuator?
NAMUR-valves are control valves which offer an assemblage interface according to the standard VDI/VDE 3845. NAMUR-valves are different from other in-line valves as they offer two ports on the flat side of the valve. In addition, there are holes for fixing the valve onto the actuator.
What is NAMUR 43 standard?
NAMUR NE43 is a standard used to define the operating AO-LL and AO-UL values. Similar to the Standard Analog Output Signal, NAMUR NE43 compliant transmitters are designed to output signals greater than the 4 to 20 mA “Base” signal, allowing for a small amount of Signal Saturation.
What is the power output of a Namur sensor?
Answer: A NAMUR sensor is a 2-wire proximity sensor that is usually powered by 8 VDC. When the sensor detects the target, the current flow through the sensor drops to less than 1.2 mA.
Are Namur proximity sensors safe?
– Namur proximity sensors are considered Intrinsically Safe. – A NAMUR proximity sensor will produce 2 different and distinct current output levels corresponding to the target position. If you have any questions about using NAMUR sensors, add them in the comments below and we will get back to you in less than 24 hours.
What happens when the target is not detected by the Namur?
When the target moves away from the sensor and is not detected, the current flow increases to above 2.1 mA. This change in current level is detected by the instrument to determine if the NAMUR sensor is detecting a target.
What is a fail-safe Namur output sensor?
The fail-safe NAMUR output sensor is used where there is a personal safety hazard to protect personnel when they are working at or near the equipment. A fail-safe NAMUR version with the appropriate intrinsically/fail-safe barrier can provide both explosion hazard and personal safety protection.