This product has explosion-proof markings of Exd Ⅱ BT6 and Exia Ⅱ CT6, with a protection level of IP65. It is suitable for measuring natural gas, dry coal gas, compressed air, etc. and is widely used in measurement and control systems in the fields of petroleum, chemical, metallurgy, scientific research, etc.
1、 Product Features
1. High quality alloy turbine with higher flow stability and corrosion resistance;
2. Imported high-quality specialized bearings with long service life;
3. The isolation between the measuring room and the ventilation room ensures the safety of the instruments;
4. It can detect the temperature, pressure, and flow rate of the tested gas, automatically track and compensate for the flow rate, and display the standard state; The cumulative gas volume of Pb=101.325KPa, Tb=293.15K; Real time query of temperature and pressure values;
5. Wide flow range (Qmax/Qmin ≥ 20:1), good repeatability, high accuracy (up to 1.0 level), low pressure loss, low starting flow rate, up to 0.6m3/h;
6. Multi point nonlinear correction of intelligent instrument coefficients;
7. Built in pressure and temperature sensors, high safety performance, compact structure, and beautiful appearance;
8. The instrument has explosion-proof and protective functions, with explosion-proof markings of Exd Ⅱ BT6 and Exia Ⅱ CT6, and a protection level of IP65;
9. The system operates with low power consumption, and a 3.2V10AH lithium battery can be used continuously for more than 3 years;
10. The instrument coefficient and cumulative flow value will not be lost for ten years after power failure.
2、 Technical parameters
Caliber: DN15~DN3000mm
Nominal pressure: 0.6-42MPa
Operating temperature: -180~+500 ℃
Accuracy of natural gas flowmeter: ± 0.2 to ± 1.5% FS
Range ratio: 1:10
Shell: Carbon steel; Stainless steel (or provided according to user requirements) (lined with fluorine)
Power supply method for natural gas flowmeter: built-in 3.6VDC lithium battery (changed every two years); External supply 24VDC (optional)
Output signal of natural gas flowmeter: 4-20mA two-wire system; Pulse frequency range of 0-1000Hz; RS232/RS485 (or to be provided upon user request)
Protection level: IP65 IP67
Explosion proof mark: intrinsic safety type ExiallCT4; Explosion proof ExdllCT4
Execution standard: Enterprise standard Q/BET05-06
Header display: Accumulated traffic; Instantaneous flow rate; Operating temperature; Operating pressure (only available with temperature pressure compensation)
3. Installation
The installation location of the sensor should have sufficient space for the inspection and maintenance of the flowmeter, and should meet the environmental requirements of the flowmeter;
Avoid interference from strong external magnetic fields;
When installed and used outdoors, there should be a cover to avoid direct sunlight and rainwater erosion, which may affect the service life of the instrument;
When conducting pipeline pressure testing, attention should be paid to the pressure measurement range of the pressure sensor equipped on the intelligent flowmeter to avoid damaging the pressure sensor due to overpressure.
Attention should be paid to the influence of installation stress. The upstream and downstream pipelines of the flowmeter should be coaxial, otherwise shear stress will be generated.
陈超 18015125918
