Alfa Laval Indication units

Category - Automation

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Our Our product profile contains a wide range of equipment of the Alfa Laval. Alfa Laval manufactures powerful and creative goods that always find the solution for the tough industrial problems at any time. The Alfa Laval achieves the high standards of equipment performance while creating the modern technologies that strengthen the working cycle of the industries. The Alfa Laval Alfa Laval Indication units is one of the flawlessly developed equipment. Alfa Laval Alfa Laval Indication units presents high degree of precision, which offer wide range of automatic and electric resolutions to fulfill all application needs. Because of the high quality of constituents, Alfa Laval Alfa Laval Indication units secure long term functioning.
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Description

Alfa Laval valve indication units provide basic information about the position of valves used in hygienic applications. Based on proven technology, this range of valve position indicators offers safe, reliable and economical operation. Safe, reliable and economical indication Alfa Laval indication units are cost-effective digital devices with up to two feedback signals that are mounted directly on the valve yoke, which provide feedback on the valve’s open/closed position. These valve position indicators (Side indicater and brackets) may be used on any Alfa Laval valve, but are especially competitive solutions for Alfa Laval SRC/ARC Single seat valves,and mixproof valves (brackets), and butterfly valves. Four types of valve indications Alfa Laval offers these standard valve position indicators for hygienic industries: Micro-switch This lightweight, electromechanical device offers precision operation and long service life. Hermetically sealed within a corrosion-resistant housing, the micro-switch provides high durability and may be directly manipulated, which means only limited operational safety can be provided compared to newer, more advanced technologies. Inductive proximity sensor Based on principles of electromagnetic conductivity and metallic detection, this non-contact electronic sensor is inherently resistant to dust, humidity and oil in industrial environments. This increases operational safety and reliability. Hall proximity sensor Based on principles of electromagnetic conductivity and magnetic detection, this non-contact electronic sensor provides safe and accurate detection of valve position compared to conventional proximity sensors. It provides enhanced reliability and longer service life for valve position sensing in any operating environment. Namur sensor This inductive proximity sensor, complete with bracket for butterfly valves, requires minimal energy to operate. It is an ATEX-certified device designed for intrinsically safe applications and may be used in hazardous and potentially explosive environments. Individual brackets and inductive sensors Alfa Laval offers an extensive portfolio of brackets and inductive sensors for use with any Alfa Laval valve that requires special support or an alternate sensing interface. For more information, please refer to Documentation. Product benefits

Cost-effective digital devices
Precision operation
Long service life

How it works Operating principles Micro-switch Mechanically activated by a roller leaf, this electromechanical device requires physical contact to engage and sends an electrical signal to indicate valve positions as an on/off digital signal. The Micro-switch is distinguished from other sensor principles because the electrical circuit can operate at higher voltages that exceed 24VDC, or work with AC alternating voltages. Inductive proximity sensor This non-contact proximity sensor consists of an oscillator, which creates high-frequency electromagnetic fields that radiate from the sensing face. Each time a conductive metal (damping target) approaches the sensor, it reduces the electromagnetic field, thus changing the voltage of the oscillator. A trigger circuit converts this analog signal into an on/off digital signal and amplifies the output to 24VDC. Hall proximity sensor This non-contact proximity sensor consists of a Hall transistor, convert this Hall sensing into an on/off digital signal and amplifies the output to 24VDC . The sensor indicates the valve position by using a magnetic field (North Pole) to measure the distance from the relative position of the indication pin on the valve stem. Namur sensor NAMUR is most associated with two wire DC proximity sensors. Such sensors must be wired to isolator barriers or intrinsically safe devices in order to be used in hazardous environments. The NAMUR proximity sensor's operation is similar to that of a variable resistor. As a metal target approaches the face of the NAMUR sensor, a change in impedance in the sensor occurs and, therefore, the current draw of the sensor is reduced. This triggers the galvanic isolator's amplifier, which activates the isolator's switch and thereby into an on/off digital output signal to the PLC system. Options Sensors with and without fixed cable and side indicators with M12, 5-pin plug connectors, including the plug counterpart, are available for connection to AC/DC power supply. Part of a broad automation range Alfa Laval offers a comprehensive range of automation intended for hygienic applications in the dairy, food, beverage,home care, personal care, biotechnology and pharmaceuticals.

Alfa Laval Indication units
Alfa Laval IndiTop

For a broader automation range, explorer the different product categories: control unit and indication units. Food Logic Alfa Laval's hygienic equipment combines high performance with gentle handling to preserve sensitive ingredients. Keeping up with the food industry trends and addressing four key challenges, supplying food products to consumers at a competitive price, getting the most from raw materials, reducing waste and emissions, and delivering safe and hygienic food products. ''