What pressure does the vortex gas flowmeter display

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1. Uncertainty of the vortex flowmeter

The uncertainty of the vortex flowmeter in the vortex bundle should be analyzed separately according to its classification (Class A/B), and the core influencing factors include measurement repeatability, standard device error, etc. 1. Uncertainty analysis methods for two types of vortex flowmeters: Type A flowmeter: using the instrument K coefficient to calculate the indication error, uncertainty analysis focuses on the stability of the K coefficient and the repeatability of the flow point measurement. ② B-class flowmeter: cumulative flow is used to calculate indication error, and uncertainty needs to be introduced as variables, including measurement error and pulse counting stability.

2. The main influencing factors of uncertainty need to be considered for all types of vortex flowmeters: • Flow meter repeatability: the degree of dispersion of continuous measurement data • Standard device error: such as the accuracy level of gas flow accompanying the standard device • Medium state fluctuation: density deviation caused by temperature and pressure changes. 3 In practical applications, it is recommended to prioritize using the real flow calibration method to obtain the correction parameters for specific models when the measurement accuracy requirement is higher than level 1.0. If theoretical estimation is required, component synthesis calculation can be carried out based on the mathematical model in JJG 1121-2015 "Verification Regulations for Spiral Vortex Flowmeters".

2. What pressure does the swirl vortex gas flowmeter display?

The common Ziyou instrument series intelligent swirl vortex gas flowmeter adopts the latest microprocessor technology, which h

1. The instantaneous flow rate and pressure displayed on the head of the vortex flowmeter are normal, but the temperature display does not match the temperature at the work site.

2. There is no display on the head of the vortex flowmeter. 1. The flowmeter does not have a 24V power supply or battery power supply. Provide 24V power to the flowmeter or replace the flowmeter battery. 2. The traffic meter LCD panel is damaged. Replace the flow meter LCD panel. 3. The flowmeter motherboard is damaged. Replace the flowmeter motherboard. 4. The power wiring is incorrect or disconnected. Find and rewire.

3. The temperature and instantaneous flow rate displayed on the head of the swirl gas flowmeter do not match the actual working pressure indication If the pressure reading is "80" or the "pressure upper limit" of the flowmeter (the upper limit can be found in the flowmeter selection reference table). One is to c

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