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1. What is the accuracy level standard for micro threaded vortex flowmeters?
The accuracy level standard for micro threaded vortex flowmeters is divided into two categories: international standards and domestic standards. The core is to define the accuracy level by the maximum allowable error.
The international standard ISO 4185 divides accuracy levels into 0.5, 1, 1.5, 2, and 2.5, with corresponding maximum allowable errors of ± 0.5%, ± 1.0%, ± 1.5%, ± 2.0%, and ± 2.5%. ISO 6817 standard: Accuracy levels are divided into 0.2, 0.5, 1, and 1.5 levels, with corresponding maximum allowable errors of ± 0.2%, ± 0.5%, ± 1.0%, and ± 1.5%, respectively.2. According to the current domestic standard GB/T 2624-2019, the accuracy level and corresponding maximum allowable error of micro thread vortex flowmeter are: | Accuracy level | Maximum allowable error | | ---- | | | | 0.5 level | ± 0.5% | 1 level | ± 1.0% | | 1.5 level | ± 1.5% | 2 level | ± 2.0% | 2.5 level | ± 2.5% | The higher the accuracy level, the stronger the accuracy of the measurement results. When selecting, it is necessary to comprehensively judge based on actual measurement needs, range, and other factors.
How much does a set of DN150 vortex flowmeter cost?
The price of DN150 vortex flowmeter varies significantly, with mainstream prices ranging from 2899 yuan to 20000 yuan. The specific price is determined by factors such as material, accuracy, protection level, explosion-proof requirements, communication function, and procurement batch.
.1. Public quotation reference 1 Two product quotations from Qingdao Hesheng Zhiyuan Automation System Co., Ltd.:
(1) Special Equipment Supervision and Inspection Digital Vo
(2) Seismic vortex flowmeter: The starting unit price for one set is 7447 yuan, the unit price for two sets is 3958 yuan, and the unit price for three or more sets is 2922 yuan; 2. General configuration price range: The price range for domestic conventional DN50-DN200 vortex flowmeter is 4500-20000 yuan, and the price range for imported products is 8000-75000 yuan, covering DN150 specification products; 3. Special configuration markup rules: The price of high-temperature and explosion-proof products will increase by 30% -50% compared to conventional models; 4. Large scale customized quotation: The new DY150 vortex street flow brother bridge quantity meter (4-20mA output) requires a minimum of 100 units for batch, with a unit price range of 440-4400 yuan.
3. What are the differences between electromagnetic flowmeters and vortex flowmeters?
Electromagnetic flowmeter and vortex flowmeter are two commonly used flow measurement devices, with the following differences: their working principles are different: electromagnetic flowmeter uses the principle of electromagnetic induction to measure the flow rate of conductive fluid by measuring the electromotive force generated when the conductive fluid passes through an external magnetic field; The vortex flowmeter obtains the flow rate value by measuring the frequency of the vortex. Different measuring media: Electromagnetic flow meters can measure various conductive liquids, such as water, sewage, seawater, various acid-base salt solutions, various industrial liquids, etc; Vortex flow meters
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