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- home > Supply > Supply flowmeter, diesel flowmeter, flowmeter manufacturers, Shanghai flowmeter Company
Information Name: | Supply flowmeter, diesel flowmeter, flowmeter manufacturers, Shanghai flowmeter Company |
Published: | 2013-03-19 |
Validity: | 300 |
Specifications: | DN25 ~ DN3000 |
Quantity: | 1000.00 |
Price Description: | |
Detailed Product Description: | Tokugawa instrument you: (electromagnetic flow meter, intelligent electromagnetic flowmeter, anti-corrosion type electromagnetic flowmeter electromagnetic flowmeter explosion-proof, split-type electromagnetic flowmeters, insertion electromagnetic flowmeter - electromagnetic flowmeter specifications, electromagnetic flowmeter introduced the price of the electromagnetic flowmeter, electromagnetic flow meter installation, electromagnetic flowmeter technology consulting information). DEC-LD Series flowmeters are suitable for measuring the flow of conductive medium volume flow meter, measuring principle is based on Faraday's law of electromagnetic induction. Flowmeter main components are: a measuring tube, an electrode, the excitation coil, the core and the yoke housing. It is mainly used for measuring the volume flow of the conductive liquid and slurry in the closed conduit. Including acid, alkali, salt and other corrosive liquids. The products are widely used in petroleum, chemical, metallurgy, textile, food, pharmaceutical, paper and other industries, as well as environmental protection, municipal administration, water conservancy construction and other fields. Product Features: 1, the measurement independent of fluid density, viscosity, temperature, pressure and conductivity changes; measuring tube unimpeded flow of parts, no pressure loss, straight pipe requirements; 3 series of nominal diameter DN25 ~~ DN3000. The sensor liner and electrode materials have a variety of options; converter novel excitation mode, low power consumption, zero stability, high accuracy. Flow range of up to 1500:1; converter sensors in compact or separate type; 6 converter with 16-bit high-performance microprocessor, 2x16LCD, convenient parameter setting, reliable programming; 7, flow counted as a bi-directional measurement system, built three totalizer: Forward total, the reverse total amount and the difference between the total; can display two-way traffic, and has a variety of output (current, pulse and digital, HART communications); 8 , converter using surface mount technology (SMT), a self-test and self-diagnosis function; Main technical data: machine and sensor technology data perform standard JB / T 9248-1999 nominal diameter 15,20,25,32,40 50,65,80,100,125,150,200,250,300,350,400,450,500,600,700,800,900,1000,1200,1400,1600,1800,2000,2200,2400, The maximum flow rate of 15m / s 2600,2800,3000 DNl5 ~ DN600 indication accuracy: ± 0.3% (≥ 1m / s) flow rate; ± 3mm / s (flow rate of 1 m / s) DN700-DN3000 showing the value of ± 0.5% (velocity ≥ 0.8m / S); ± 4mm / s (flow rate <0.8m / S) the fluid conductivity ≥ 5uS/cm nominal pressure 4.0MPa 1.599MPa 1.0MPa 0.6MPa 6.3,10 MPa DN25 ~ DN150 DNl5 to DN600 DN200 to DN1000 DN700 ~~ DN2500 special order ambient temperature sensor -25 ℃ - 10 60 ℃ converter integrated -10 ℃ - 10 60 ℃ lining material PTFE, neoprene, polyurethane, polyethylene fluorinated ethylene propylene (F46), poly full screening PFA maximum fluid temperature - Body 70 ℃ separation type neoprene rubber lining 80 ° C; 120 ° C (specify when ordering) polyurethane lining 80 ° C PTFE lining 100 ° C; 150 ° C (specify when ordering) FEP (F46) plus the network PFA signal electrode and the grounding electrode material is stainless steel 0Crl8Nil2M02Ti, Hastelloy C, Hastelloy B, titanium, tantalum, platinum / iridium alloy, stainless steel coated with tungsten carbide electrode scraper DN250-DN3000 connection method blue material is carbon steel grounding flange material the stainless steel 1Crl8Ni9Ti import protection flange material DN65-DNl50 stainless 1Crl8Ni9Ti DN200 ~ DNl600 carbon steel ten stainless steel 1Crl8Ni9Ti shell protection DNl5 ~ DN3000 separate type of rubber or polyurethane lining sensor IP65 or IP68 other sensors - Body Flow distance sensor IP65 pitch count and separate type converter (separate type) converter is generally not more than 100m converter technical data: power supply AC 85-265V ,45-400Hz DC 11-40V operation keys and four push-button membrane keypad set select all parameters set, can also use a PC (RS232) converter set programming; 3 line LCD wide viewing angle, wide temperature range, with backlight display; Line 1 shows the flow value; second line shows the flow units; Line 3 show the percentage of traffic, forward total, reverse total difference between the total amount of alarm, flow rate. Magnetic-button 2 magnetic key is used to display parameter selection and reset settings programmed using a PC (RS232) converter; 2 line LCD wide viewing angle, wide temperature range, with a backlit display: Line 1: magnetic key to select: show the percentage of traffic, forward total, reverse total difference between the total amount of alarm, flow rate. Line 2: Displays traffic. The internal totalizer Forward total, reverse total and the difference between the total amount. The output signal of the one-way fully isolated analog output, load ≤ 600D. (20mA); ceiling :0-21mA optional, each file lmA; Low :0-21mA optional, each stall 1mA; positive reverse flow output mode programming. Bidirectional analog output lower limit. Or 4mA, the other with a one-way analog output. Bi-directional pulse output two outputs corresponding to the forward and reverse flow, frequency 0 ~~ 800Hz, up to 1-800Hz optional each stall IHz; square wave or selected pulse width, the selected pulse width ceiling 2.5S per stall 1ms; the passive isolation transistor switch output can absorb 250mA current, voltage 35V. Dual alarm output alarm (programming) high / low traffic, air traffic control, fault status, the positive and reverse traffic overrange analog, pulse volume overrange the pulse small signal resection, optional output polarity; Isolated protect the transistor switching output can absorb 250mA of current, voltage 35V (with pulse output isolation) digital communication RS232, RS485, HART lined select: maximum medium temperature of the lining material performance Scope - Body separated type PTFE ethylene (F4) is the most stable chemical properties of a plastic resistant to boiling hydrochloric acid, sulfuric acid, nitric acid, and aqua regia, but also be able to withstand the concentrated alkali and various organic solvents. Impatience chlorine trifluoride, chlorine trifluoride high temperature, high velocity liquid fluorine, liquid oxygen, since oxygen corrosion. 70 ℃ 100 ℃ 150 ℃ (special order) 1, concentrated acids, alkalis and other corrosive media. 2, the health media. Poly FEP (F46) with F4, abrasion resistance, ability to resist negative pressure is higher than the F4. Ditto polyvinyl fluoride co-ethylene (Fs) the maximum applicable temperature than PTFE low, but the cost is lower. 80 ℃ neoprene rubber, excellent flexibility, height Cheduan, good wear resistance. Resistance is generally low concentrations of acid, alkali, salt medium corrosion, of intolerance oxidation corrosion medium. 80 ℃ 120 ℃ (special order) water, sewage, weak wear mud slurry. Polyurethane rubber, wear resistance strong. 2, poor corrosion resistance. 80 ℃ wear-neutral slurry, coal slurry, mud import protection flange and grounding flange (or ground ring) Select orchid species Scope grounded flange (or ground ring) apply to a non-conductor pipe, such as plastic pipes, However, ground electrode of the sensor does not require. The import protection Flanges chosen medium strong wear. The electrode selection electrode material corrosion and wear resistance of stainless steel 0Crl8Nil2M02Ti for industrial water, domestic water, sewage and other with weak corrosive media, suitable for petroleum, chemical, iron and steel and other industrial sectors, municipal, environmental protection and other areas. Hastelloy B is below the boiling point of all the concentration of hydrochloric acid has a good corrosion resistance, are also resistant to corrosion of the non-chlorinated acids such as sulfuric acid, phosphoric acid, hydrofluoric acid, organic acids, alkalis, non-oxidizing salt solution. Hastelloy C resistant to non-oxidizing acid, such as nitric acid, mixed acid, or chromic acid and sulfuric acid, a mixed medium of corrosion and oxidation resistance of the salts such as: Fe, ",, Cu" or other oxidant-containing corrosion, such as higher than normal hypochlorite solution, titanium seawater corrosion resistant to sea water, chlorine and various hypochlorites, oxidizing acids (including fuming sulfuric acid), organic acids, alkali corrosion. Intolerant than pure reducing acid (such as sulfuric acid, hydrochloric acid) corrosion, but containing an oxidizing agent such as an acid (such as nitric acid, FC + +, of Cu + +), then the corrosion is substantially reduced. Tantalum has excellent corrosion resistance and the glass are very similar. In addition to hydrofluoric acid, fuming sulfuric acid, alkali, almost resistant to the corrosion - cut chemical media (including the boiling point of hydrochloric acid, nitric acid and l sulfuric acid of 50 ° C or less). Diao; alkali corrosion. Platinum / titanium alloy almost capability - to cut chemical media, but does not apply to aqua regia and ammonium. Stainless steel coated with tungsten carbide used in non-corrosive, strong abrasive media. Note: Because of the the medium wide variety of its corrosive influence of temperature, concentration, flow rate, and other complex factors and changes in the table are for reference only. Users should be based on the actual situation to make their own choices necessary to be selected material corrosion test, such as coupon tests. DEC-LD flowmeter works: DEC-LD the flowmeter measuring principle is based on Faraday's law of electromagnetic induction. The flow meter measuring tube is a short tube lined with insulating material non-magnetic alloy. Two electrodes along the diameter direction of the through-wall is fixed on the measuring tube. Substantially flush with the electrode head and the liner inner surface. By the bi-directional square wave pulse Mai magnetic excitation coil, the operating magnetic field of a magnetic flux density B is generated in the direction perpendicular to the axis of the measuring tube. At this time, if with a certain electrical conductivity of the liquid flowing through the measuring tube, the cutting lines of magnetic force induced electromotive force E. The electromotive force E is proportional to the magnetic flux density B, and measuring the product of the tube diameter d and the average flow velocity V. The electromotive force E (flow rate signal) is detected by the electrodes and sent via cable to the converter. Converter will flow signal after enlarging processing, can display the fluid flow, and can output pulses, simulated current signal for the control and regulation of the flow. E = KBDV formula: E ---- signal voltage (V) between the electrodes B ---- flux density (T) D ---- measuring tube inner diameter (m) V ---- average velocity ( m / s) where K, d is a constant, since the excitation current is a constant current, so B is constant, by E = KBDV shows that the volume flow Q and the signal is proportional to the voltage E, i.e. flow rate signal induced voltage E The volume flow rate Q is a linear relationship. Therefore, as long as the measure E can determine the flow rate Q, this is the basic working principle of the electromagnetic flowmeter. By E = KBdV, we can see that the the measured fluid medium temperature, density, pressure, conductivity, liquid-solid liquid-solid two-phase fluid medium composition ratio parameter does not affect the measurement results. As for the flow state as long as found axisymmetric flow (e.g., laminar or turbulent) will not affect the measurement results. So, to say that the electromagnetic flow meter is a true volumetric flow meter. For the manufacturer and user, as long as the actual calibration with ordinary water after the measure the volume of any other conductive fluid medium, without the need to make any correction, which is a prominent advantage of the electromagnetic flowmeter is any other flowmeter none. No activity in the measuring tube and a flow blocking member, so almost no pressure loss, and have a high reliability. DEC-LD Series flowmeter instrument selection: 1, range confirm the general industrial flowmeter measured medium velocity 2 ~ 4m / s is appropriate, in exceptional circumstances, the minimum flow rate should be not less than 0.2m / s, the highest should not be greater than 8m / s. Medium containing solid particles, commonly used flow rate should be less than 3m / s, prevent excessive friction lining and the electrodes; viscous fluid, the flow rate can choose more than 2m / s, large flow rate helps to automatically eliminate electrode attached The role of a viscous, help to improve the measurement accuracy. Can be determined according to the scope of the of the velocity V the range Q has been determined under conditions the size of the flow meter diameter D, its value is calculated by the following formula: Q = πD2V / 4 Q: flow rate (m / h) D: pipe inside diameter V span Q: flow rate (m / h), the meter should be greater than the expected maximum flow rate value, and the normal flow rate value 50 is preferably slightly larger scale at the flowmeter full scale. 2, DEC-LD Series flowmeter reference flow range caliber mm flow range caliber mm flow range m3 / h m3 / h φ15 0.06 ~~ 6.36 φ450 57.23 to 5722.65 φ20 0.11 ~~ 11.3 φ500 70.65 ~ 7065.00 φ25 0.18 ~~ 17.66 φ600 101.74 to 10173.6 φ40 0.45 ~ 45.22 φ700 138.47 ~ 13847.4 φ50 0.71 ~ 70.65 φ800 180.86 ~ 18086.4 φ65 1.19 ~ 119.4 φ900 228.91 ~ 22890.6 φ80 1.81 ~ 180.86 φ1000 406.94 ~ 40694.4 φ100 2.83 ~ 282.60 φ1200 553.90 ~ 55389.6 φ150 6.36 ~ 635.85 φ1600 723.46 ~ 72345.6 φ200 11.3 ~ 1130.4 φ1800 915.62 ~ 91562.4 φ250 17.66 ~ 176.25. φ2000 1130.4 ~ 113040.00 φ300 25.43 ~ 2543.40 φ2200 1367.78 ~ 136778.4 φ350 34.62 ~ 3461.85 φ2400 1627.78 ~ 162777.6 φ400 45.22 ~ 4521.6 φ2600 1910.38 ~ 191037.6 |
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Copyright © GuangDong ICP No. 10089450, The Jinhu Tokugawa instrument Technology Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
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You are the 16023 visitor
Copyright © GuangDong ICP No. 10089450, The Jinhu Tokugawa instrument Technology Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility