KH-LWGY series ethanol meter flow meter is learned at home and abroad advanced technology optimized design, has a simple structure, lightweight, high precision, reproducibility is good, responsive, installation and maintenance, easy to use features of the new generation of turbine flowmeter, widely used to measure the closed pipe and stainless steel 1Cr18Ni9Ti, 2Cr13 and corundum AI2O3, carbide corrode, and no fibers, particles and other impurities, kinematic viscosity at operating temperature is less than 5 × 10-6m2 / s of liquid, for sports viscosity greater than 5 × 10-6m2 / s of liquid, solid solution after the flowmeter calibration use. If the display instrument package with special features, you can also quantitative control, excessive alarm, etc., is a flow metering and energy saving ideal instrument .KH-LWGY type turbine flowmeter is a precision flow measurement instruments, and the corresponding flow totalizer meter package can be used to measure the flow and volume of the liquid. Widely used to measure petroleum, chemical, metallurgy, research and other fields, the control system. Equipped with a turbine flow sensor sanitary fittings can be used in the pharmaceutical industry. Integrated turbine flowmeter proof structure designed to display the total flow, instantaneous flow rate and the percentage of full scale flow. The battery is long-lasting lithium battery, single-function calculator watch battery life of up to five years, multi-function display meter battery life can be up to 12 months. Numerous integrated flow meter can display units, there cubic gallons, liters, standard cubic meters, the standard 升等, you can set a fixed pressure and temperature parameters of the gas to compensate for changes in pressure and temperature parameters is not the occasion You can use this instrument for fixed compensation totalizer. Technical performance liquid turbine flow meter for high viscosity hydraulic oil, engine oil, small caliber specifications can adopt real flow calibration. KH-LWGY series ethanol flowmeter features * High accuracy, generally up to ± 1% R, ± 0.5% R, high-precision up to ± 0.2% R; · repeatability, short-term repeatability of up to 0.05% to 0.2 %, it is due to good reproducibility, such as frequent calibration or online high accuracy calibration available in trade settlement is the preferred flow meter; · output pulse frequency signal, suitable for the measurement of total and computer connection, no zero drift, anti-jamming capability; · availability of high frequency signals (3 ~ 4kHz), signal resolution and strong; · wide range of degrees, medium and large caliber up to 1:20, small caliber 1:10 ; * Compact and lightweight, easy installation and maintenance, flow capacity; * For high voltage measurements on the meter body does not have to cut, easy to type instrument made of high pressure; · special type of sensor types, can be designed according to the special needs of all kinds special type of sensor, such as low temperature, bi-directional, underground type, sand and other special type; * can be made to insert type, suitable for large diameter measurement, pressure loss, low price, do not remove the drying, easy installation and maintenance. The basic parameters and measurement range and working pressure: meter diameter and connection 4,6,10,15,20,25,32,40 threaded connections (15,20,25,32,40) 50,65,80,100 , 125,150,200 flange connection Accuracy ± 0.5% R rating scale ratio 1:10; 1:15; 1:20 304 meter stainless steel material, 316 (L) stainless steel measured medium temperature (℃) -20 ~ + 120 ℃ Environmental Conditions Temperature -10 ~ + 55 ℃, relative humidity of 5% to 90%, atmospheric pressure 86 ~ 106Kpa output signal 4-20mADC current signal (KH-LWGY- □ C type) power supply KH-LWGY- □ B-type : comes with lithium battery (can be used continuously for 3 years); KH-LWGY- □ C type: + 24VDC signal transmission line 2 × 0.3 (two-wire) transmission distance ≤1000m signal line interface thread M20 × 1.5 (KH-LWGY- □ C type) Protection class IP65 Explosion levels ExdIIBT6 meter diameter (mm) normal flow range (m3 / h) extended flow range (m3 / h) General withstand pressure (MPa) special pressure rating (MPa) (flange connection ) DN 4 0.04 ~ 0.25 0.04 ~ 0.4 6.3 12,16,25 DN 6 0.1 ~ 0.6 0.06 ~ 0.6 6.3 12,16,25 DN 10 0.2 ~ 1.2 0.15 ~ 1.5 6.3 12,16,25 DN 15 0.6 ~ 6 0.4 ~ 8 6.3,2.5 (flange) 4.0,6.3,12,16,25 DN 20 0.8 ~ 8 0.45 ~ 9 6.3,2.5 (flange) 4.0,6.3,12,16,25 DN 25 1 ~ 10 0.5 ~ 10 6.3 , 2.5 (flange) 4.0,6.3,12,16,25 DN 32 1.5 ~ 15 0.8 ~ 15 6.3,2.5 (flange) 4.0,6.3,12,16,25 DN 40 2 ~ 20 1 ~ 20 6.3,2.5 (flange) 4.0,6.3,12,16,25 DN 50 4 ~ 40 2 ~ 40 2.5 4.0,6.3,12,16,25 DN 65 7 ~ 70 4 ~ 70 2.5 4.0,6.3,12,16,25 DN 80 10 ~ 100 5 ~ 100 2.5 4.0,6.3,12,16,25 DN 100 20 ~ 200 10 ~ 200 2.5 4.0,6.3,12,16,25 DN 125 25 ~ 250 13 ~ 250 1.6 2.5,4.0 DN 150 30 ~ 300 15 ~ 300 1.6 2.5,4.0 DN 200 80 ~ 800 40 ~ 800 1.6 2.5,4.0 KH-LWGY series ethanol meter installation Note: in order to ensure the correct selection of ethanol meter turbine flowmeter to better use. What kind of turbine flowmeter selection should be based on the physical and chemical properties of the measured fluid medium to decide? Turbine meter diameter, flow range, lining materials, electrode materials and output current? Can adapt to the measured fluid the nature and flow measurement. 1, precision function tests measuring accuracy level and functions according to the requirements and use the occasion to select the instrument accuracy class, so economical. For example, for trade settlement, product transfer and energy measurement occasions, should choose some high level of accuracy, such as 1.0, 0.5, or higher level; process control applications for select different accuracy classes according to the control requirements; some only about the process flow is detected, do not need precise control and measurement of the occasion, you can choose a slightly lower accuracy level, such as 1.5, 2.5, or 4.0, then you can choose inexpensive insertion turbine flow meter. 2, media measurement medium velocity measurement range of the instrument with the caliber of measurable media in general, full-scale turbine flow meter can measure in the medium velocity 0.5-12m / s range to choose from, the range is wide. Select the meter specification (caliber) is not necessarily the same process piping, should be considered to measure flow velocity range is within the range determined that when the pipe is low velocity flow meter can not meet the requirements or the flow rate measurement accuracy is not guaranteed, the the need to downsize meter diameter, thereby increasing the flow rate of the tube, to be satisfied with the measurement results. [2] installed in order to ensure accurate measurement of turbine flowmeter must correctly select the installation location and method of straight pipe requirements: level meter must be installed in the pipe (pipe tilt in five or less), the installation of the meter axis should concentric pipe axis, the flow to be consistent. Flowmeter upstream pipe length should be not less than 2D straight pipe sections, etc., if the installation site promises recommend charging straight pipe upstream of 20D, downstream of the 5D. Requirements for piping: meter installation point on the inner diameter of the downstream pipe with an inner diameter of the same meter. Of the bypass pipe requirements: In order to ensure the maintenance when the meter does not affect the normal use the media in the pipeline before the meter should be installed off valve (valve), and should set the bypass pipe. Flow control valves to be installed downstream of the flowmeter, globe valve flow meter must be installed upstream of the open, to avoid the upstream portion of the fluid flow phenomena produce instability. The requirements of the external environment: the best meter installed in the interior, must be installed in the outdoors, be sure to adopt sun, rain lightning protection measures, so as not to affect the service life. The requirements for the medium containing impurities: In order to ensure the life of the meter should be installed before the filter straight pipe flow meter. Installation place: the meter should be installed in the ease of maintenance, no strong electromagnetic interference and thermal radiation of places to install the welding requirements: The user comes a pair of standard pipe flanges welded on the front and back. With flow soldering is not allowed! Should be strictly removed before installing the meter pipe welding slag and other dirt, preferably with equal diameter pipes (or bypass) instead meter purge pipes. To ensure that the flowmeter from damage during use. When installing the meter, flange gasket between the pipe can not be recessed. Flowmeter grounding requirements: flowmeter should be grounded, not shared with the strong electrical system ground. Requirements for explosion-proof products: In order to secure the normal use of the instrument, you should review whether the explosion-meter-proof environment and user requirements set match, and the installation process, should strictly abide by the requirements of explosion-proof products, can not be changed by the user proof system connections are not free to open the instrument. Selection within the specified flow range, to prevent overspeed operation, in order to ensure to obtain the desired accuracy and ensure the normal life. Before installing the meter should clean the pipeline debris: fragments, welding slag, stones, dust, etc. is recommended to install 5 micron mesh filter to block upstream droplets and sand. Flowmeter should slowly be put into operation before the valves open, after opening the valve to prevent damage to the turbine instant impact airflow. Lubricating operation should sign the number refueling clean and set according to the degree of temperament, usually 2-3 times a year. Due to pressure test, purge the pipe or exhaust turbo overdrive cause, as well as the turbine will operate in the reverse flow meter may be damaged. Before the meter runs freely allowed to open the back cover, modifiers inside the parameters, otherwise it will affect the normal operation of the meter. Carefully install the gasket, make sure there is no protrusion into the pipe to prevent interfering with the normal flow measurement. To capture the pressure meter on the meter taps during calibration. What should be noted that the use of ethanol flow meter: 1 each way using 1.1 installed in place, it should ensure that all the chips and debris have been cleared, the system has been flushed, pressure, airflow and boost to the flow into the inlet valve 1.2 opens a small turbine flowmeter upstream bypass valve 1.3 Slowly open the KH-LWGY small turbine flowmeter upstream bypass valve, slowly filling the gas turbine flowmeter downstream electric front until forced into the seal valve. Note: The pressure shock or excessive pressure can damage the turbine meter high speed. In order to protect the gas turbine flowmeter, pressure is applied to the turbine flowmeter rise no more than 35kPa / s. Pressure can not be measured, such as the scene changes, the monitoring turbine flow meter can not be exceeded. 1.4 close the bypass valve and shut-off valve small. 1.5 handwheel to force open the inlet valve seal. 1.6 Slowly open the downstream turbine flowmeter electric forced seal valve (for at least 1 minute), it is best to use a manual switch on the electric actuator must be careful not to overdrive the turbine flowmeter. 1.7 by 1.2-1.6 steps, the entire pressurized system is completed, the gas began to be metered. 2 online than gas turbine flowmeter (work road and the main road for comparison) 2.1 ensure that the inlet and outlet valve is off the main road. 2.2 in accordance with the "one for each way of using the" steps 1.2,1.3,1.4, pressurized to the main road. 2.3 forcibly close the road electric outlet seal valve, slowly open the mandatory seal valve on the pipeline than slowly forced open the main road electric outlet seal ball (best to do three things at the same time). 2.4 gas passes through the work of the road and the main road. Two turbine flowmeter can compare each other to check whether there is a large deviation. 2.5 when compared to the end, turn off the road than on the tube and the main road of the two mandatory seal valve, open the valve outlet pipe (preferably while doing three jobs). 2.6 Then work the way back to work. 3 car online with a mobile calibration calibration gas turbine flowmeter KH-LWGY 3.1 ports to ensure that the calibration between the two electric forced seal valve in the closed state. 3.2 Calibration mouth open board small blind flange ball valve, blind flange plate to ensure no internal pressure. Then remove the blind flange plate. 3.3 Move calibration and calibration port connected car. 3.4 in accordance with the "one for each way of using the" steps 1.2,1.3,1.4, pressurized to the main road. 3.5 forcibly close the road electric outlet seal valve, slowly open the mandatory seal valve on the pipeline than slowly forced open the main road two calibration seal valve (preferably at the same time do these four work). 3.6 In this case, the gas flows through the skid base within two gas turbine flowmeter calibration and move the car. 3.7 After the completion of the online calibration, calibration mouth shut two ball valves, slowly open the pipeline than mandatory seal valve, slowly open the valve seal Road exit electric mandatory (preferably at the same time do these four work). 3.8 The blind flange plate Replace, do not forget to close the blind flange plate small ball. 3.9 Then work the way back to work.