Aluminum Alloy Material Aluminum Alloy Material Stainless Steel Material
The LWQ type gas turbine flow meter is an optimized design of advanced technologies for flow meters at home and abroad, combined with theories of aerodynamics, fluid mechanics, and electromagnetics, and is self-studied and integrates temperature, pressure, flow sensors and intelligent flow totalizers. A new generation of high-precision and high-reliability gas precision metering instruments, with excellent low-pressure and high-pressure metering performance, multiple signal output methods and low sensitivity to fluid disturbances, widely used in natural gas, coal-based gas, liquefied gas, and light hydrocarbon gas Wait for gas metering.
▶Integrate a microprocessor, flow sensor, high-precision temperature and pressure sensor, directly measure the flow, temperature, and pressure of the measured gas, and automatically perform flow tracking compensation and compression factor calculation.
▶Adopting low power consumption design, it can be powered by lithium battery, the battery can be used continuously for more than 2 years; at the same time, it can also be an external power supply.
▶The instrument has pulse signal and analog signal output. It can directly realize the centralized collection and real-time management of computer data through the RS485 communication interface or the GPRS system.
▶Liquid crystal display, the reading is intuitive and convenient, and it can display the instantaneous flow rate under standard conditions, instantaneous flow under working conditions, cumulative flow under standard conditions, and the temperature and pressure of the measured medium at the same time.
▶With real-time data storage function, it can prevent data loss when the meter is suddenly powered off, and can be stored for a long time in the power off state.
|Executive standard||Measurement of gas flow in closed pipelines---turbine flow meter (CG/T18940-2003)|
|Accuracy grade||±1.5%R (±1%R requires special characteristics)|
Body: 304 stainless steel or cast aluminum
Impeller: high-quality aluminum alloy
Converter: cast aluminum
|Conditions of Use||Ambient temperature: -25~+80℃; relative humidity: 5%~95%; medium temperature: -20~+60℃; atmospheric pressure: 86kPa~106kPa|
A. External power supply: +24VDC±15%, ripple ≤±5%, suitable for 4-20mA output, pulse output, RS485, etc.
B. Internal power supply: 1 set of 3.6VDC lithium battery
|Communication output||RS485 communication|
|Real-time recording||Daily record, fixed time interval record|
|Signal interface||Internal thread M20X1.5 or others|
|Signal output||Pulse signal, 4-20mA current signal, control signal|
|Explosion-proof grade||Exia IIC T4 Ga|
|Model specification||Nominal diameter DN mm||Flow range m³/h||Maximum pressure loss (kPa)||Starting flow (m³/h)||Installation method|
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Measuring range , medium, Installation method (flange, thread), Pressure range, Remote transmitter, Level alarm switch
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