Thermal Gas Mass Meter
Product Description
The unique temperature difference measurement method of the thermal gas mass flow meter overcomes the large zero drift caused by the water, oil and impurities in the gas when the thermal gas mass flow meter using the principle of constant temperature difference measures the gas flow, resulting in unmeasurable disadvantages. It can also be used to measure the mass flow of wet gas, such as the real-time detection of the air volume (speed) in the underground gas extraction, air supply and exhaust system.
Application
- Gas flow measurement in iron and steel plants and coking plants;
- Boiler air flow, measure the secondary air volume;
- Measurement of flue gas flow from the chimney;
- Water flow me a surement in water treatment;
- Gas flow measurement in the production process of cement, cigarette and glass factories;
- Compressed air flow measurement;
- Gas flow measurement of natural gas, coal gas, liquefied gas, flare gas, hydrogen, etc
Features
Mass calculation, standard volume me a surement to reduce measurement errors.
High linearity, high repeatability and high precision can be achieved.
High-performance intelligent microprocessor and analog-to-digital, digital-to-analog conversion chip.
Wide turndown ratio 1:1000; when measuring large-diameter low- velocity flow, pressure loss can be ignored, low-velocity measurement is sensitive, and the minimum flow rate can be measured as low as 0.05m/S.
Selection , installation, use and main tenance are simple , and can be disassembled and maintained online without interruption pipeline.
With no moving part s , vibration effects are negligible.
Insensitive to small particles such as dust, suitable for all kinds of single or mixed gas flow measurement.
Technical Parameter
- Performance:Technical Parameter
Structure Type:plug-in pipe;pipeline
Applicable Media:Moisture-free gas (except acetylene gas)
Levelof Accuracy:±1.0%; ±1.5%
Temperature Range:Ambient temperature (-20 ～ 50) ℃;Medium temperature (-20～120)℃
Power Supply:24VDC/220VAC
Work pressure:2.5Mpa;4.0Mpa
RespondingSpeed≤1S
Output Method:RS-485/HART;4-20mA analog output;pulse/frequency output
Pipe Material:carbon steel, stainless steel
Protection Class:IP65
Alarm point:Relay dry contact output, up to two channels
Pipe diameter range:DN40 mm and above DN10～DN300 mm
Velocity Range:(0.1～120)Nm/s
Turndown Ratio:100:1
Explosion-proof grade:Exd II ct4
Process Connection:Ball valve connection Flange connection (can be customized)
Electrical Lnterface:M20*1.5
Live Display:Four-line LCD display
