Atmospheric O&M flow calibration tool – P series portable gas laminar flow mass flow meter
The atmospheric particulate matter sampler is the core equipment of ambient air quality monitoring, and the accuracy of its collected data is crucial, it is an analytical instrument used to collect and analyze a variety of particulate matter and pollutants in the ambient air. The national standard stipulates that the working flow rate of the small flow sampler is a volumetric flow rate of 16.67L/min, and the relative standard deviation of the flow rate is required to be ≤2%. In order to ensure the accuracy of the data collected by the sampling pump during continuous use, regular calibration and maintenance are generally required, which seems to be a simple requirement for flow calibration equipment, but the actual working conditions bring severe challenges to flow calibration.
When a sampler calibrated in the plain area is transported to a high altitude area, the atmospheric pressure and temperature will change greatly, and the air pressure and temperature change will cause a significant shift in the volume flow, and the sampling results will be biased, which will directly affect the measurement accuracy. In the current domestic market, there is no instrument suitable for atmospheric operation and maintenance flow calibration, long-term dependence on imports, high price, long delivery time, poor after-sales timelines, and usually requires terminal certification and calibration, and the long-term stability of the instrument also faces many challenges. Therefore, there is an urgent need for a portable flow meter that can directly and accurately measure volumetric flow and maintain long-term stability at different altitudes and seasons.
Yidu handheld portable laminar flow mass flow meter came into being
Realize flow measurement under working conditions. Yidu P series portable mass flow meter is based on the principle of laminar flow differential pressure, the gas in the laminar flow state, the pressure difference is directly proportional to the flow rate, the volume flow rate is calculated through the pressure difference between the two ends of the laminar flow element, and then the mass flow rate is calculated through the ideal gas state equation. It can output both volumetric flow and mass flow rate to meet the requirements of atmospheric particulate matter sampler for 16.67L/min volumetric flow, providing an ideal solution for the environmental monitoring industry.
The core advantages of the series of handheld portable flow meters
Accurate measurement, stable and reliable. With the advantages of high precision, high repeatability, high stability, fast response, long battery life, and easy operation, Yidu P series portable gas mass flow meter can meet the flow measurement and equipment calibration needs of atmospheric operation and maintenance in different scenarios, different regions and different environments.
Portable and easy to use. With a small size and a weight of only 567g, it can be easily put into a pocket or tool bag like a smartphone, allowing you to measure anytime, anywhere. Equipped with a high-definition touch screen, it can display key data such as real-time temperature, pressure, volumetric flow, mass flow, and cumulative flow, which is intuitive and convenient, greatly improving work efficiency.
Strong environmental adaptability. With precise laminar flow elements and pressure sensors, it ensures high measurement accuracy (±1%Rd), long-term accuracy without drift (±0.1%F.S.), wide medium temperature range (-20°C~60°C), wide measurement range (0.5ml~5000L/min), working pressure up to 2MPa, stable product performance, high reliability, is a reliable professional tool for users.
Wide range of applications. The application scope of the Yidu P series portable gas mass flow meter is far beyond the field of environmental monitoring, and its high accuracy, portability and flexibility make it full of value in industrial process control and fluid measurement and calibration in laboratories and research institutes in semiconductors, biomedicine, fuel cells, photovoltaics and other fields.
Online calibration without downtime. When the measuring equipment needs to be calibrated regularly, the traditional method needs to disassemble the flow meter or flow controller for inspection, resulting in the production line shutdown for several days, the Yidu P series portable flow meter can be directly connected to the production line to complete the flow calibration without downtime.
Multi-gas supports one-key switching. The product has a built-in database of more than 70 kinds of gas support to switch gas media with one click on the touch screen, without manual conversion coefficient, this flexibility makes it very popular, its laminar flow differential pressure design principle and characteristics, making it a sharp tool for flow calibration, each of which can be sent to the National Metrology Institute or the local Metrology Institute to issue a certificate!
With its unique laminar flow differential pressure principle, direct volumetric flow measurement, excellent long-term stability, excellent portability, and wide range of multi-industry applicability, Yidu P series portable gas mass flow meters are quickly becoming a new generation benchmark product in the field of ambient atmospheric operation and maintenance and industrial precision measurement and control, which is an ideal choice for ensuring the accuracy of flow measurement and equipment reliability. Yidu P series portable gas mass flow meter is solving the problem of flow measurement and calibration for all walks of life, and has become an important part of China’s high-end “intelligent manufacturing”.