Details KH-LDE liquid flow meter: KH-LDE electromagnetic flowmeter is a conductive medium to measure volume flow tube induction meter according to Faraday's law, the use of embedded microcontroller technology, digital excitation, while the electromagnetic flow count on CAN field bus, is a national initiative, technology has reached domestic leading level. KH-LDE intelligent electromagnetic flowmeter at the same time meet the live shows, you can also output 4 ~ 20mA current signal for the record, regulation and control, has been widely used in chemical industry, environmental protection, metallurgy, medicine, paper, water and other industrial technology and management sectors. KH-LDE electromagnetic flowmeters measure the flow of conductive liquids in addition, it can also measure the phase fluids, high viscosity fluid and salts, acids, alkalis liquid volume flow. Liquid Flow Meter Features: ◆ meter structure is simple, reliable, no moving parts, long working life. ◆ No closure choke parts, there is no pressure loss and fluid clogging. ◆ No mechanical inertia, fast response, good stability, can be used to automatically detect, adjust and programmable control system. ◆ Measurement accuracy is not measured media types and effects of temperature, viscosity, density, pressure and other physical parameters. ◆ using different combinations of Teflon or rubber material lining and Hc, Hb, 316L, Ti and other electrode materials can be adapted to the needs of different media. ◆ with pipes, plug-flow models. ◆ use EEPROM memory, measurement data storage protection safe and reliable operation. ◆ have integration and separation of two types. ◆ High resolution backlit LCD display. Liquid flow meter Technical parameters: ◆ Meter Accuracy: Pipeline 0.5, 1.0; plug-in 2.5 ◆ Measuring medium: conductivity is greater than 5μS / variety of liquid and liquid-solid two-phase fluid cm's. ◆ flow rate range: 0.2 ~ 8m / s ◆ Working pressure: 1.6MPa ◆ Ambient temperature: -40 ℃ ~ + 50 ℃ ◆ medium temperature: ≤180 ℃ PTFE lined rubber material lining ≤65 ℃ ◆ Explosion-proof mark: ExmibdⅡBT4 ◆ external magnetic interference: ≤400A / m ◆ shell protection: integrated type: IP65; separation type: Sensor IP68 (5 meters underwater, is limited to the rubber lining) converter IP65 ◆ Output signal: 4 ~ 20mA.DC, load resistance 0 ~ 750Ω ◆ communication output: RS485 or CAN bus ◆ Electrical connection: M20 × 1.5 female, φ10 cable hole ◆ Power supply voltage: 90 ~ 220V.AC, 24 ± 10% V.DC ◆ Maximum power consumption: ≤10VA liquid flow meter Instrument selection: ◆ scale range to confirm the general industrial use electromagnetic flowmeter measured medium flow rate to 2 ~ 4m / s is appropriate, in exceptional circumstances, the minimum flow rate should be not less than 0.2m / s, the maximum should not exceed 8m / s. If the medium contains solid particles, the flow rate should be less than conventional 3m / s, to prevent excessive friction lining and the electrodes; for viscous fluids, optionally greater than the flow rate of 2m / s, the larger the flow rate on the electrode attachment helps automatic elimination of stick hysteresis effects thereof, will help improve the measurement accuracy. Q has been determined in the range of conditions to determine the size of the meter diameter D of the velocity V of the above range, the value is calculated by the following formula: Q = πD2V / 4 Q: flow rate (m / h) D: pipe diameter V : velocity (m / h) Range Q electromagnetic flowmeter should be greater than the expected maximum flow value, whereas the normal flow values ??are slightly larger than the 50% of full scale flow meter is appropriate. KH-LDE Liquid Flow Meter Selection Table Model Diameter (mm) flow range (m3 / h) Diameter (mm) Diameter (mm) flow range (m3 / h) KH - LDE15 DN15 0.32-6.36 KH --LDE / LCD450 DN450 286.13-5722.65 KH --LDE20 DN20 0.57-11.30 KH --LDE / LCD500 DN500 353.25-7065.00 KH --LDE25 DN25 0.88-17.66 KH --LDE / LCD600 DN600 508.68-10173.60 KH --LDE32 DN32 1.45-28.94 KH --LDE / LCD700 DN700 692.37-13847.40 KH --LDE40 DN40 2.26-45.22 KH --LDE / LCD800 DN800 904.32-18086.40 KH --LDE50 DN50 3.53-70.65 KH --LDE / LCD900 DN900 1144.53-22890.60 KH --LDE65 DN65 5.97-119.40 KH --LDE / LCD1000 DN1000 1413.00-28260.00 KH --LDE80 DN80 9.04-180.86 KH --LDE / LCD1200 DN1200 2034.72-40694.40 KH --LDE100 DN100 14.13-282.60 KH --LDE / LCD1400 DN1400 2769.48-55389.60 KH --LDE125 DN125 22.08-441.56 KH --LDE / LCD1600 DN1600 3617.28-72345.60 KH --LDE150 DN150 31.79-635.85 KH --LDE / LCD1800 DN1800 4578.12-91562.40 KH - LDE / LCD200 DN200 56.52-1130.40 KH --LDE / LCD2000 DN2000 5652.00-113040.00 KH - LDE / LCD250 DN250 88.31-1766.25 KH --LDE / LCD2200 DN2200 6838.92-136778.40 KH - LDE / LCD300 DN300 127.17-2543.40 KH --LDE / LCD2400 DN2400 8138.88-162777.60 KH - LDE / LCD350 DN350 173.09-3461.85 KH --LDE / LCD2600 DN2600 9551.88-191037.60 KH - LDE / LCD400 DN400 226.08-4521.60 Code electrode material K1 316L K2 HB K3 HC K4 platinum alloy titanium K5 K6 K7 tantalum carbide coated stainless steel lined Code F4 C2 C1 polytetrafluoroethylene material poly FEP F46 C3 polyvinyl fluoride co poly vinyl FS C4 C5 recorded butadiene rubber polyurethane rubber code Function E1 0.3 级 E2 0.5 级 E3 级 1 F1 4-20Madc, load ≤750Ω F2 0-3khz, 5v active, variable pulse width output high effective frequency F3 RS485 interface high-temperature T1 T2 T3 type room temperature ultra-high temperature type P1 0.6MPa P2 1.0MPa P3 1.6MPa P4 4.0MPa D1 220VAC ± 10% D2 24VDC ± 10% J1 J2 points of a body structure body structure J3 explosion integrated structure of the product installation diagram: The main advantage of KH-LDE liquid flow meter is as follows 1) electromagnetic flowmeter sensor structure is simple, no moving parts inside the measuring tube, and there is no obstacle fluid flow throttling member. So it will not cause any additional pressure loss when the fluid passes through the meter, is one of the lowest energy consumption flow meter flowmeter. 2) Dirty measurable medium, corrosive liquid medium and the suspension of the solid flow of traffic. This is because the instrument measuring the inside of the tube member without obstructing the flow in contact with the fluid to be measured is the lining of the measuring tube and the electrode, the material may be selected according to the nature of the fluid to be measured. For example, polytrifluoroethylene or PTFE lined, measure a variety of acids, bases, salts and other corrosive media; wear-resistant rubber lined, it is particularly suitable for the measurement of solid particles with wear large pulp, grout and other phase fluids and a variety of liquid and pulp with a fiber suspension body. 3) The electromagnetic flowmeter is a volumetric flow measurement instruments in the measurement process, it is not the temperature of the measured medium, viscosity, density electrical conductivity (in a certain range) effects. Therefore, the electromagnetic flowmeter of water just after the calibration, the heart can be used to measure the flow rate of other conductive liquid. 4) The output of electromagnetic flowmeter and the average velocity is proportional only measured media, but with symmetrical distribution under flow conditions (laminar or turbulent) irrelevant. So span a very wide range of the electromagnetic flowmeter, the measurement range of up to 100: 1, and some even up to 1000: 1 flow range can be run. 5) The electromagnetic flowmeter no mechanical inertia, responsive, can measure the instantaneous pulsating flow, but also measure the flow of both positive and negative directions. 6) Industrial diameter range of the electromagnetic flowmeter is extremely wide, from a few millimeters up to several meters, and the country has a diameter up to 3m of actual flow calibration equipment, laid the foundation for the use and development of electromagnetic flowmeters. Electromagnetic flowmeters are still major problems exist as follows: a) can not be used to measure the gas, vapor and a liquid containing a large amount of gas. b) can not be used to measure very low conductivity liquid medium, such as petroleum products or organic solvents and other media, the current electromagnetic flowmeters still powerless. c) general industrial use electromagnetic flowmeter measuring tube lining material and due to limitations of electrical insulating materials, and can not be used to measure temperature medium; as without special treatment, can not be used to measure the cryogenic medium to prevent the measuring tube condensation (frost) damage to the insulation. d) Electromagnetic Flowmeter susceptible to external electromagnetic interference.