As the fluid passes through the flow meter, a specific pressure differential is generated between the inlet and outlet of the flowmeter. The rotating component of the flowmeter, known as the rotor, is designed to rotate under the influence of a specialized mechanism. This rotation is achieved by the fluid's movement from the inlet to the outlet. In this process, the fluid repeatedly fills the "metering space" of the flowmeter before being continuously discharged to the outlet. In a given flowmeter configuration, the volume of the metering space can be calculated by measuring the number of rotor rotations. The flow meter can be used to measure the cumulative volume of fluid.
The regular flowmeter is equipped with a lead seal and encryption chip, ensuring a secure anti-cheating design that prevents human tampering.
Temperature auto-correction: Fuel expands when heated and contracts when cooled.
Maintenance Tips: If the fuel dispenser slows down in metering or makes strange noises, it may be necessary to have the flow meter inspected for maintenance or replacement.
The product's basic structure consists of the following components: Inlet & Outlet, Cylinder, Base, Adjusting Gear Accuracy Dial, and sensor interface.
Eaglestar company specializes in the provision of 4 piston-type flowmeters.
The Role of the fuel dispenser flowermeter Function
The so-called flow meter is an instrument that can measure the volume of fluid passing through a pipeline per unit of time. Each classification possesses a distinct scope of adaptation, accompanied by specific limitations. In general, flow meters can be categorized based on the purpose of measurement. Specifically, they can be divided into two types: flow measurement and total measurement. The corresponding instruments for these categories are flow meters and total meters, respectively. The primary function of the gasoline dispenser flowmeter is to accurately measure the volume of oil output.
Accurate measurement
Convert the fuel flow quantity into a standard electric signal (pulse number). It is essential that the accuracy meet the OIML R117 international standard (error ≤ ± 0.3%). In addition, the system must support multi-oil switching (gasoline, diesel, etc.). It is also crucial that it automatically identify the viscosity difference (e.g., diesel viscosity 2.5-4.5mm²/s).
Temperature compensation
The built-in temperature sensor enables real-time correction of volume error (gasoline temperature change of 1 ℃, volume change of 0.12%). High-end models (such as Tokheim V4) use dual-temperature compensation and simultaneously monitor the oil temperature and the flowmeter chamber temperature difference.
The flowmeter used in Eaglestar Fuel Dispenser fully complies with world metrological standards, ensuring an error range of ±2%. Moreover, the Flowmeter used in each fuel dispenser has undergone at least three tests, ensuring the accuracy of metrology for fuel station customers.
As the "fair eye" of the fuel retail terminal, the technical performance of the flow meter is directly related to people's livelihoods and commercial reputation. From the nano-scale processing of mechanical gears to the prospective exploration of quantum sensors, the technological evolution of flow meters has always been centered on the three major cores of precision, reliability, and safety. When selecting a qualified flow meter, it is essential to adhere strictly to OIML, ASTM, JJG, and other standards. Additionally, it is crucial to consider specific scenarios, such as biofuels and extreme cold environments, to identify the most appropriate solution. In the future, with the integration of hydrogen energy and electricity measurement, the technical boundaries of the flow meter will continue to expand, but its essential mission of ensuring the accuracy of measurements will remain constant.
