Introduction：QWLJ series gas turbine flowmeter is a kind of precision measuring instrument used for gas flow measurement, which is developed by introducing advanced technology from abroad and combining with our own products, it has the features of small ……
QWLJ series gas turbine flowmeter is a kind of precision measuring instrument used for gas flow measurement, it is developed by combining our own products with the introduction of advanced technology from abroad, it has the features of small pressure loss, high accuracy, low starting flow, good performance of anti-vibration and anti-pulsation flow, and wide range ratio.
QWLJ series gas turbine flowmeter can be widely used in petroleum, chemical, electric power, industrial boiler gas measurement and gas pressure regulating station, transmission and distribution gas pipeline. pressure regulating station, gas transmission and distribution pipeline network natural gas, urban natural gas metering and other fields.
1、Patented rectification technology can be in the installation conditions are not ideal, the media flow rate changes are relatively large in the case of maintaining the reliability of measurement.
2、 the patented dust-proof structure can effectively prevent impurities in the medium into the bearing caused by rapid wear and tear, jamming phenomenon.
3、 low installation requirements, before the straight pipe section ≥ 2D, will be able to ensure the accuracy of the flowmeter measurement.
4、 intelligent integrated design can dynamically detect the temperature and pressure of the medium, and automatic compensation and compression factor correction, directly display the standard instantaneous volume flow rate of gas and the total volume of the standard.
5、 aluminium alloy turbine high strength, corrosion resistance, anti-aging, long service life, high accuracy, good repeatability.
6、 advanced microcomputer technology and high-performance microcontroller, so that the whole machine is more powerful and superior performance.
7、 advanced dual-power micro-power consumption of high-tech, low power consumption of the machine, not only with the battery long-term power supply operation (two lithium batteries can be used for 36 months), but also can be connected to the external power supply operation.
8、 large screen backlit LCD display, in the darker environment can be clear and intuitive readings.
9、 flowmeter with pulse signal output, but also according to user needs output (4 ~ 20) mA standard analogue signal, IC card quantitative pulse signal and other signals.
10、Adopting RS485, RS232C, MODBUS, HART protocol: it can be matched with special MODEM to build automatic meter reading management system through telephone network, with high degree of automation.
11、Adopting E2-PROM data storage technology, the setting parameters can be stored for a long time after power failure.
12、 internal battery low voltage alarm (≤ 3.0V), to remind users to replace the battery in time.
13、 Intelligent flow totaliser can be rotated 180 o, easy to read.
14、 accidental power failure, automatically save data to prevent data loss.
15、 with signal output calibration function. Can output (4, 8, 12, 16, 20) mA standard current signal.
16、 the liquid crystal display of the accumulator can withstand 80 ℃ high temperature.
17、 external power supply and flowmeter main circuit isolation, isolation voltage up to 1000V.
18、 reliable electromagnetic compatibility design.
High frequency vibration test bench 
Direct coupled electric vibration table (water cooled) 
Direct coupled electric vibration table (air-cooled) 
PT721 clamp type AC current probe (1200A, 100kHz) 
PT320 high-frequency AC/DC current probe (60A, 20MHz) 
Waveform generator 33622A 120 MHz 2-channel 
Impedance analyzer E4990A 20 Hz to 10/20/30/50/120 MHz 
Waveform generator 33511B 20 MHz 1 channel with arbitrary waveform generation capability 
Waveform generator 33612A, 80 MHz, 2-channel 
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