Reverse osmosis flowmeter | How to read the numerical value of reverse osmosis flowmeter

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1. A brief introduction to mass flow meters

2. Can electromagnetic flow meters be used for reverse osmosis water production?

Yes. After careful examination, electromagnetic flow meters can be used for conductivity greater than 5. However, rotor type flow meters are generally used.

3. Does pressure fluctuation of reverse osmosis device affect the measurement accuracy of electromagnetic flowmeter?

Pressure fluctuation of reverse osmosis device can affect the measurement accuracy of electromagnetic flowmeter, but interference can be eliminated through technical means.

Influence mechanism • Sudden pressure changes lead to changes in fluid density: Electromagnetic flow meters are based on Faradays law of electromagnetic induction. When the fluid conductivity remains constant, density changes caused by pressure fluctuations can affect the electrode induction signal • Bubble interference: Sudden pressure drops may cause dissolved gases to precipitate, and bubbles can cause measurement values to jump (usually manifested as an abnormal increase in instantaneous flow rate) • Mechanical vibration impact: Pipeline vibrations accompanied by pressure fluctuations may interfere with the sensors working state Solution: Install a buffer device: Install a pulsation damper (recommended volumetric damper, buffering effect>85%) in front of the flow meter. Parameter opti Reverse osmosis flowmeter

mization settings: Enable the low-pass filtering function of the flow meter (recommended cutoff frequency set to 1/10 of the system pressure fluctuation frequency). Adjust the response time constant (recommended 3-5 seconds for reverse osmosis systems). Hardware upgrade: Choose an electromagnetic flow meter with pressure compensation function (such as E+H Promag 50P series) Key Verification Indicators | Projects | Standard Values | Detection Methods | | ----------------------------------------------------------------------------------------------------------------------------- Industry Practice Data - Actual Test of a Seawater Desalination Project: After installing a damper, the pressure fluctuation was reduced from 0.35MPa to 0.08MPa, and the error of the electromagnetic flowmeter was reduced from 2.1% to 0.3%. The pharmaceutical industry purified water system standard (GMP Appendix 1) requires that the flow measurement deviation caused by pressure fluctuation should not exceed 0.5%.

4. How to view the value of the reverse osmosis flowmeter?

View directly. Reverse osmosis flow meters have digital display stools and mechanical indicators. The digital display can directly view the values. To distinguish between instantaneous and cumulative values, the mechanical direct vibration control can directly view the values. Flow meter, also known as pulse random coarse counter.