『Guangzhou water flow meter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
What are the recommended manufacturers for flow meters?
2. What are the specifications of a water flow meter?
Introduction: A water flow meter is composed of two important parts: a sensor and a converter, and its operation is based on the law of electromagnetic induction.. The water flow meter can measure the volumetric flow rate of some conductive liquids, and the conductivity resistance of these conductive liquids must be greater than 5 μ S/cm, so it is an inductive instrument. Lets learn about the specifications of water flow meters and some other related introductions together. Specifications of the water flow meter: 1. Pipeline PTFE lining: DN10~DN1200 2. Pipeline rubber lining: DN40~DN1200 3. Flow direction: positive and negative 4. Range ratio of the water flow meter: 150:1 5. Repeatability error: around 0.1% of the measured value 6. Pipeline accuracy level: 0.5 and 1.0 7. Temperature of the measured medium: ordinary rubber lining temperature: between -20 and+60 ℃, high temperature rubber lining temperature: between -20 and+90 ℃, PTFE lining temperature: between -30 and+100 ℃, high temperature PTFE lining temperature: between -20 and+180 ℃ 8. Rated working pressure: DN6-DN80: ≤ 1.6MPa, DN100-DN250: ≤ 1.0MPa, DN300-DN1200: ≤ 0.6MPa 9. Flow rate range: 0.1m/s to 15m/s 10. Range of conductivity: The conductivity of the tested conductive fluid is greater than or equal to 5 μ s/cm. 11. Output of load resistance current: 0-10mA: 0-1.5k Ω, 4-10mA: 0-750 k Ω. 12. Digital frequency output: The frequency of digital output is between 1HZ and 5000HZ. When the external power supply is less than or equal to 35V, the collector current passing through is below 250mA. 13. Power supply: AC220V, DC24V or 3.6
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3. How to charge for hot water for college students in Guangzhou, Guangdong
The charging method for hot water for college students in Guangzhou, Guangdong is usually based on time or water consumption through smart IC card technology.
.1. Charging by Time In this charging mode, when students use hot water, the smart IC card will record the time of hot water usage.
. Students need to swipe their card before starting to use hot water, the system will start timing, swipe the card again after use, the button system will stop timing, and the corresponding fees will be deducted based on the usage time. This charging method is simple, intuitive, easy to manage and operate.Secondly, charging based on the amount of water used by the brother. Another charging method is to charge based on the actual amount of water used.
. The smart IC card system will be equipped with a flow meter to measure the actual water consumption of students during the use of hot water. Students also need to swipe their cards at the beginning and end, but the system will deduct the corresponding fees based on the data from the flow meter. This charging method is more accurate and can more accurately reflect students water usage situation. It is worth noting that whether charging based
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