Ultrasonic level switch

NegotiableUpdate on 12/15

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Nature of the Manufacturer: Producers

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Overview

ELL-SA ultrasonic level switch is a type of level switch that utilizes the principle of ultrasonic wall propagation attenuation and combines "variable frequency ultrasonic" technology to achieve detection. It adopts a residual vibration working mode. The measuring probe is attached to the outer wall of the container and is a non-contact isolation instrument that detects the liquid level from outside the tank. It can be widely used for level detection of various liquids. The measuring probe of the instrument emits ultrasonic waves and detects its residual vibration signal in the container wall. When the liquid overflows the probe, the amplitude of this residual vibration signal will decrease, and this change will be detected by the instrument and output a switch signal.

Product Details

ELL-SA ultrasonic level switchworking principle

Variable frequency ultrasonic technology "is an ultrasonic signal change detection technology invented by Dinghua Electronics. traditionUltrasonic level switchThe main problem is that the ultrasonic signal is interfered by the attachments on the tank wall and drifts with temperature and time, causing the amplitude of the residual vibration signal to change, which can easily lead to false alarms. Dinghua Electronics can effectively eliminate interference and drift, accurately detect signal changes, and adapt to various complex on-site working conditions through its adaptive adjustment "variable frequency ultrasonic technology", ensuring long-term stable and reliable operation. Due to the use of Dinghua Electronics' "micro vibration analysis" external sonar signal processing technology in the manufacturing process of the product, the reliability and durability of the ultrasonic external liquid level switch are ensured.

ELL-SA ultrasonic level switchpurpose

When installing the ELL-SA series ultrasonic external liquid level switch, there is no need to drill holes on the tank wall to install sensors. The instrument does not come into contact with the liquid medium or gaseous medium inside the container. Therefore, the installation is simple and fast, and it is very safe and reliable to use. During maintenance and repair, it is not necessary to clean the tank, use hot work, or affect normal production.

The ELL-SA series ultrasonic external liquid level switch is suitable for fixed-point liquid level measurement and alarm of various containers and liquids, and can be widely used in industries such as petrochemicals, chemicals, oil depots, petroleum, power, liquid storage and transportation, and pharmaceuticals. It has significant advantages in the field of fixed-point liquid level measurement and alarm for pressure vessels, hazardous chemical liquids, flammable and explosive liquids, etc.

Product Features

Safety: When measuring liquids that are toxic, corrosive, pressurized, flammable, explosive, volatile, and prone to leakage, do not use valves, connecting pipes, or joints, have no leakage points, and do not come into contact with liquids and gases inside the tank. It is very safe. Even in the event of instrument damage or maintenance, there is no possibility of leakage, poisoning, or explosion.

Reliable and Durable: Adopting Dinghua's signal processing technology and manufacturing process, it is reliable and durable.

Accuracy: up to ± 1mm.

Easy installation and maintenance: No hot work or cleaning of the tank is required during installation and maintenance, which does not affect production.

Widely applicable: not limited by the pressure, temperature, density, dielectric constant, viscosity, and corrosiveness of the measured medium inside the tank.

Technology: Equipped with fault self diagnosis and remote transmission output fault signal design; The instrument comes with lightning protection and surge protection functions, without the need for additional surge protectors.

Through the accreditation of the National Accreditation Service for Conformity Assessment (CNAS), the Shanghai Institute of Instrumentation and Automation System Inspection and Testing has obtained the "Functional Safety Integrity" level certification and obtained the SIL3 certificate.