Fuel Pumps Use Reed Switches to measure Volume of fuel

Fuel pumps represent inherently hazardous environments where even the slightest error can precipitate a catastrophic fire. Given this risk, the selection of equipment is critical, with safety being paramount. Reed Switches and Reed Sensors stand out as exceptionally safe devices for use in such volatile settings due to their hermetic sealing, effectively isolating them from the surrounding atmosphere.

In these fuel pumps, reed switches play a pivotal role in ensuring operational safety and efficiency. For instance, they are utilized to detect whether the nozzle has been securely placed in the holster, enabling the automatic reset of the last volume filled display to zero.

This function is achieved through a clever design wherein a tiny magnet embedded in the nozzle handle activates a reed sensor positioned inside the holster, facilitating seamless and reliable detection.

Moreover, reed switch-based flow sensors offer exceptional longevity and reliability, even when operating under demanding conditions. These sensors, compatible with very low-level sensing loads such as 10V/10mA, can endure up to a billion operations. Utilizing encoder-type configurations, these flow sensors employ a multi-pole magnet that rotates alongside a paddle wheel within the pipeline. The resulting square wave output is then processed by a microprocessor to accurately calculate the volume of petrol or diesel being dispensed. This information is subsequently displayed on digital panels, alongside real-time fuel prices, facilitating efficient management and monitoring of fuel pumps in operation.

In essence, the incorporation of reed switches and sensors within petrol and diesel pumping stations not only ensures adherence to stringent safety standards but also enhances operational precision and reliability, contributing to the seamless functioning of these critical facilities while mitigating potential risks associated with volatile environments.

Application Classification

Applications are classified as Position Sensing, Pulse Counting, Electromagnetic or Relay, Temperature Sensing or Magnet Biasing types. This application is classified as follows and the link gives more information on best practices to help select the most suitable AT band and matching magnet.

Position sensing Type

When an application requires the end position of a movement sensed, or the sensing of a part when it comes into a zone, or when the Continue reading ->

Sep 29, 2024

Recommended Products

The Reed Switches and Sensors used in such applications need to be robust, durable and efficient in meeting a high life expectancy. Our engineers work hard in life testing our products under various conditions, and our intention is to ensure end product durability and life. Although we wouldn’t want to restrict any of our products for use in only certain applications, the recommended products for use in this application are listed below.