This micro oval gear flow meter is a positive displacement flow sensor built for accurately measuring low-volume liquid flow. It works by using two rotating oval gears to measure a precise volume of fluid with each rotation, making it a very reliable way to track usage. Features and Benefits
- Oval gear design - Measures true volume, so its accuracy isn't affected by changes in fluid viscosity or flow rate.
- RS485 digital output - Provides a clean, interference-resistant signal for PLCs and data logging systems.
- Aluminum and stainless steel parts - It's compatible with a range of fluids, including diesel, oils, and some chemicals.
- Measures low flow rates - It can accurately track volumes down to 12 liters per hour, making it good for detailed monitoring. Applications
- On small engines or test benches to monitor exact fuel consumption.
- In automated systems for precise chemical dosing or additive mixing.
- For tracking oil and lubricant dispensing in industrial machinery.
Key Functions
A flow meter measures the rate of flow of a fluid, such as a liquid or gas, through a pipe or conduit. This particular Gear Flow Sensor is designed for flow control applications. It provides an electronic RS485 digital output, enabling precise monitoring and control of fluid movement. The sensor is compatible with various fluids including diesel, gasolines, urea, and water, making it versatile for different industrial and commercial uses where accurate flow measurement is critical.
Common Types of Flow Meters
Flow meters are essential tools for accurately measuring the movement of liquids and gases. They come in various designs, each suited to different applications and fluid types. This product, an Oval Gear Flowm, uses a positive displacement method. Other common types include ultrasonic, electromagnetic, and vortex flow meters. While a peak expiratory flow meter is used in medical settings to measure airflow from the lungs, industrial flow meters like this one are used for process control and monitoring in pipelines.
Key Types & How They Work
Flow meters operate on various principles to determine fluid velocity or volume. For instance, the Gear Flow Sensor described here is an Oval Gear Flowm, which falls under the positive displacement category. These meters work by trapping and displacing a known volume of fluid with each rotation of their gears, directly measuring the volume passing through. This method provides high accuracy, especially for viscous fluids. Other types include turbine meters, which measure flow by detecting the rotational speed of a turbine within the flow path.
Velocity-Based Meters
Velocity-based flow meters calculate the flow rate by measuring the speed at which a fluid moves through a pipe. These meters infer the volume by knowing the pipe's cross-sectional area and the fluid's velocity. Examples include ultrasonic flow meters, which use sound waves, and vortex flow meters, which detect vortices created by an obstruction in the flow. This Gear Flow Sensor, however, is an Oval Gear Flowm, which directly measures volume rather than relying on velocity calculations.
Differential Pressure (DP) Meters
Differential pressure (DP) meters measure flow by creating a pressure drop across an obstruction in the flow path. Devices like orifice plates, venturi tubes, or nozzles are used to create this pressure difference. The flow rate is then calculated based on the measured pressure differential and the known characteristics of the obstruction. While effective for a wide range of fluids, this Gear Flow Sensor operates on an oval gear principle, directly measuring fluid volume rather than relying on differential pressure.
Port Size: G1/4, G1/2, G3/4. Compatible Fluids: Diesel, Gasolines, Urea, Water. Function: Flow Control. Output Type: Electronic, RS485 Digital. Sensor Type: Oval Gear Flowm. Nominal Diameter (DN15): G1/2 inch. Nominal Diameter (DN20): G3/4 inch. Nominal Diameter (DN8): G1/4 inch. Housing Material: Aluminum Alloy or Stainless Steel. Power Supply: 12-24V DC. Flow Rate Range (DN15): 1 to 100 L/min. Flow Rate Range (DN20): 5 to 200 L/min. Flow Rate Range (DN8): 0.5 to 50 L/min. Output Signal: RS485 Digital. Operating Temperature: -20°C to 120°C. Pressure Rating: 1.6 MPa. Accuracy: ±0.5% to ±1%. Compatible Fluids: Diesel, Gasolines, Urea, Water. Measurement Principle: Oval Gear. Product Type: Micro Oval Gear Flow Meter. Q: What are the available thread sizes and the measurement range? A: You can get this meter with G1/4, G1/2, or G3/4 inch threaded ports. It's designed to measure flow rates from 0.5 up to 1,800 liters per hour, depending on the specific model you choose.. Q: What are the internal gears made of? Can it handle diesel fuel? A: The internal oval gears are made from stainless steel for accuracy and corrosion resistance. The meter is designed specifically to work with fluids like diesel, gasoline, urea, and water.. Q: How do I read the data from this flow sensor? What is the output type? A: This is an electronic flow sensor with a digital RS485 output that uses the Modbus protocol. You need to connect it to a PLC, microcontroller, or a dedicated display that can interpret the RS485 signal to view the flow data.. Q: What kind of warranty is included with the flow meter? A: It's covered by a 12-month warranty against any defects in materials or workmanship. Please note that this does not cover damage from incorrect installation or using fluids that are incompatible with the meter's materials.. Q: Why choose an oval gear meter over a turbine meter for measuring oil? A: Oval gear meters are a type of positive displacement meter, which makes them very accurate, even with thicker fluids like oil. Their performance isn't affected by changes in viscosity as much as a turbine meter, so you get more reliable measurements..