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1. Industrial oxygen flowmeter scheme
The industrial oxygen flowmeter scheme needs to be selected comprehensively based on specific application scenarios, accuracy requirements, and environmental conditions, with the core being to ensure safety, accuracy, and stability.
1. Flow meter selection 1 The Heshunda VN oxygen vortex flowmeter is suitable for measuring oxygen flow in general industrial environments. The caliber range is from DN15 to DN600mm, the nominal pressure covers 1.6MPa to 4MPa, the operating temperature is suitable for -25 ℃ to 200 ℃, the accuracy reaches 1.0% of key dispersion, and the range ratio is 1:10. The connection method provides flange clamping or flange connection, and the structural type can be selected as integrated or split type. Power supply supports built-in 3.6VDC lithium battery or external 24VDC, with output signals including 4-20mA two-wire system, pulse 0-1000HZ, and RS232/RS485. The protection level covers intrinsic safety type ExiallCT4 and explosion-proof type, with the execution standard of Q. The meter head can display multiple parameters such as cumulative flow rate, instantaneous flow rate, operating temperature, operating pressure, etc.
2. The precision controlled micro gas flowmeter (biopharmaceutical special) is designed specifically for the fermentation process of biopharmaceuticals, meeting the precise control requirements of sterility and trace oxygen, with a precise range covering 0.05 to 80mL/min, suitable for micro oxygen supply in fermentation tanks. Adopting medical grade PTFE coating and 316L stainless steel gas path, it has passed GMP and FDA sterile certification and can withstand wet heat sterilization at 121 ℃. Equipped with laser Doppler f
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2. Installation points: Ensure that sufficient straight pipe sections are retained before and after the flowmeter to ensure fluid stability and measurement accuracy.
. Install and seal the flow meter correctly according to the selected connection method to prevent oxygen leakage. For split type structures, attention should be paid to the installation environment requirements for sensors and converters. 3. Maintenance Plan: Regularly check the operation status of the flowmeter, pay attention to whether the meter head display is normal and whether there are any fault alarms. The flow meter powered by lithium batteries needs to replace the battery according to the prescribed time (such as two years of digging). Clean the casing and sensor to avoid dust and impurities affecting measurement accuracy. Regularly calibrate the flowmeter to ensure the accuracy of measurement data.2. What does the flow unit of a flowmeter refer to? The flow unit of a flowmeter refers to the unit used to measure the flow rate of the medium measured by the flowmeter. The common flow units of flow meters are as follows: 1. cubic meter/hour (m ³/h): represents the volume of medium passing through the flow meter per hour
2. liter/hour (L/h): represents the volume of medium passing through the flow meter per hour, equal to 0.001 cubic meter/hour
3. kilogram/hour (kg/h): represents the mass of medium passing through the flow meter per hour
4. ton/hour (t/h): indicates the mass of medium passing through the flow meter per hour, equal to 100
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