Technical parameters of compressed air flow meter

Project Overview

Function introduction of the compressed air flow meter: on-site LCD meter display, real-time temperature, real-time pressure, instantaneous flow, flow accumulation, with temperature and pressure compensation functions. When measuring gas and steam, check based on the actual measured temperature and pressure Table-based compensation ensures that the flow rate is not affected by changes in temperature and pressure, which may cause changes in gas density and affect the accuracy of the flow meter. When ordinary vortex flowmeters leave the factory with a range ratio of 1:5, the flow accuracy cannot be guaranteed when the range is below 20% or above 80%, because the non-intelligent type cannot perform multi-point linear compensation of the flow signal through the internal program. , the compressed air flow meter adopts multi-point linear compensation to ensure the flow accuracy of the flow meter at each point of the measuring range. The intelligent flow metering range ratio is 1:15, which is 3 times higher than the ordinary vortex flowmeter. The compressed air flow meter has the function of self-diagnosis and automatic compensation for temperature and pressure faults. It can record the clock and date when power is off. It can switch to display the working condition and standard flow rate by pressing the button. It uses dual sensors and has a strong vibration function.

Output signal: The compressed air flow meter can simultaneously output two current (ma) and frequency signals on three lines (corresponding to: instantaneous flow, flow accumulation, temperature, pressure) and can be set arbitrarily through the flow meter menu. The two-wire output current (ma) (corresponding to: instantaneous flow, flow accumulation, temperature, pressure) can be set through the instrument menu.

Product name: Compressed air flow meter

Caliber: DN15～DN3000mm

Nominal pressure: 0.6～42MPa

Working temperature: -180～+500℃

Accuracy: ±0.2～±1.5%FS

Range ratio: 1:10

Housing: stainless steel

Power supply method: built-in 3.6VDC lithium battery (replaced every two years); external 24VDC (optional)

Output signal: 4~20mA two-wire system; pulse 0~1000HZ; RS232/RS485 ( Or negotiate and provide according to user requirements)

Protection level: IP65 IP67

Explosion-proof mark: Intrinsically safe ExiallCT4; Flameproof ExdllCT4

Implementation standard: Enterprise standard Q/BET05-06

Gauge display: cumulative flow; instantaneous flow; operating temperature; operating pressure (temperature and pressure compensation type only); rod full scale percentage; fault self-test

Connection method: double flange type, plug-in type, clamp type