LDDC- series of electromagnetic flowmeters / Shandong flowmeter / Zibo meter

Instrument characteristics ● measuring tube unimpeded flow fittings, pressure loss is zero, clogging. ● As long as the rational use of electrodes and lining materials, it can achieve corrosion and wear requirements. ● pressure measurements and fluid, temperature, density, viscosity, electrical conductivity (not less than the minimum conductivity) and other physical parameters largely independent from the environment, so high accuracy, stable and reliable. ● use of modern technology and high-performance analog signal conversion VLSI chip, the signal isolation, filtering, amplification and digital processing. Accurate measurement results. ● The parameters affecting the measurement results of automatic monitoring and correction, such as zero drift correction settings to full-scale adoption and amendment of segmented flow coefficient, thereby expanding the measuring range, improved intelligence and accuracy, greatly improving the stability performance. ● The measured value power protection and over-range alarm feature, which allows the flow of fluid within the sensor to be set, and thus the direction of liquid flow sensor installation is not limited, two-way flow measurement. ● The double flow with a backlit dot matrix display also shows the instantaneous flow, cumulative flow, and can display the working status, parameters, units of measurement. ● Wide range of range of the electromagnetic flowmeter (maximum flow / minimum flow), the normal scope of 20: 1, the general 30: 1 or greater. ● meter equipped with a variety of output, with computers, modular instrumentation package, to be completed by printing, communications and networking requirements. Measuring principle Faraday's principle of electromagnetic induction, the measuring tube axis and the magnetic field lines perpendicular to the wall to install a pair of detecting electrodes, when the conductive liquid tube axis motion along the measurement, the conductive liquid cutting magnetic field lines generated EMF, the EMF from the two detection detected, the numerical size is proportional to flow electrode, its value is: E = KBVD formula: E- EMF; D- electrode spacing; (measuring tube diameter) B- magnetic induction; V- conductive liquid average velocity ; K- and field distribution and axial length of the relevant factors. E induction electric sensor as traffic signal, transmitted to the converter, after amplification, conversion filter and a series of digital processing, using dot matrix LCD with backlight shows the instantaneous flow rate and cumulative flow. The converter has 4 ~ 20mA output, upper and lower alarm output and frequency output and a RS-485 communication interface, etc. Hart protocol. LDDC electromagnetic flowmeter consists of two parts, the sensor and converter. It is based on the work of Faraday's law of electromagnetic induction, used to measure the conductivity is greater than the volume flow 5μ S / cm conductive liquid, it is a measure of the volume flow of conductive medium for induction meter. In addition to measure the volume flow of conductive liquid, it can also be used to measure the volume flow of homogeneous liquid-solid two-phase liquid suspension of acid, alkali and other strong corrosive liquids and slurries, pulp and paper pulp. Widely used in flow measurement in petroleum, chemical, metallurgy, textile, paper making, environmental protection, food industry and municipal administration, water conservancy construction, river dredging and other areas. LDDC series electromagnetic flowmeter main technical indicators Conductivity> 5μ S / cm. Flow rate 0.3-12m / s range can be measured within the flow rate range, programmable full-scale flow, see table at right shows the accuracy of the measurement value ± 0.5%, ± 1% Ambient Temperature Ambient temperature -10 ℃ -50 ℃ relative humidity of 5% -90% medium temperature T1≤65 ℃, T2≤120 ℃, T3≤180 ℃ working pressure DN10-80: PN≤4MPa DN100-300: PN≤ 1.6MPa DN350-1000: PN≤1MPa above diameter for higher pressure can special order supply 220V AC 50Hz (90-245V AC 50Hz) 24V DC (20-36V DC) power battery 6.5VA Standard Protection class IP65, IP67 or IP68 special type of electrode material 316L, HC, HB, Pt, Ti, Ta neoprene lining material 1. 2. 3. polyurethane rubber PTFE fusible polytetrafluoroethylene 4. 5. Poly perfluoroethene