HQ 970 series inline electromagnetic flow meter

1.HQ970 series electromagnetic flowmeter:a voltage is induced in an electrically conductive body which passes through a magnetic field. 2.DNrange (unit:mm):4,6,10,15,20,25,32,40,50,65,80,100,150,200,250,300,350,400,500,600,700, 800,900,1000,1200,1400,1600,1800,2000,2200 etc. 3.specifications: Type In-linetype Insertiontype Configuration DNrange DN4-800mm(DN1000mm) DN200-3000mm Flowrange 0-0.3m/sto0-12m/s Excitation dual-frequencymagneticpulseDC Flowdirection bidirectional Conductivity ≥5μs/cm,≥20μs/cm(DN≤10mm) NominalPressure Max4MPa(highpressuremax40MPa) Mediumtemperature softrubber<80°C,ebonite<90°C,PTFE<180°C Material linermaterial:PTFE,softrubber,ebonite;materialofelectrode:Mo2Ti,Hastelloy(C),Hastelloy(B),etc Output electricity:0-10mADC,loadingresistance:700Ω(2KΩ);4-20mADC,loadingresistance:350Ω(750KΩ) pulsefrequency:0-500Hz,loadingresistance:(1KΩ) Interface RS232,RS485,HART Powersupply 24VDC±15% Lossofpower <3W Ambientcondition temperature:-40-+60°C,humidity:5%-90% Accuracy ±1%,±0.5%(±0.3%) Repeatability 0.2% Protectclass IP65,IP68 Ex-proof Exd(ib)MIICT3-T6,ibIICT3-T6 Feature uEmptypipedetectoreliminateserroneousmeasurements uNon-linearamendment unomovingparts unomaintenance uexcitationcurrentautomaticcompensation upipesizeupto3000mm 4.structure 5.features: 1. Not effected by the change of the fluid condition such as density, viscosity, temperature, pressure and conductivity, the signal output of inductive voltage is linearity to average velocity; therefore it has high accuracy of measurement. 2. No moving parts, lower pressure loss, straight pipe required only 5D for upstream and 3D for downstream due to the inductive voltage signal which is the average value in the cross-section of the pipe, no clogging, very suitable for serosity. 3. Low-frequency excitation rectangular wave, more stability. 4. Using non-uniform magnetic field and unique magnetic circuit. 5. Various electrode can be choose and excellent anticorrosive material, eliminate electrode leakage and polarization problem. 6. Empty pipe detector eliminates erroneous measurements. 7. Material 316L, well ability for anticorrosive, anti-alkali and anti-acid. 8. Exchange printed circuit boards at field, no need to be re-calibration, easy for maintenance. 9. Utilizing intelligent chips for field show transmitter, easy to set parameters, show flow rate, totalizer, flow percentage, etc. 10. Sealed and reasonable configuration for transmitter let us easy and safety to install and maintain. 11. The reliable self-diagnostic function detects various system alarms, process alarms and setting alarms. 12. High range ability, 0.3m/s-12m/s. 13. Applications: oil & gas, metallurgy, steel, electricity, municipal, paper, water treatment, pharmaceutical, food, air, etc. 14. Insertion type electromagnetic flowmeter is suitable for DN larger than 200mm, because of its volume, weight and cost. Especially, in dirty medium, it’s easy for washing, maintenance and calibration. 15. In many occasion, the installation need no stop gas. At that case you can choose insertion type which with ball valve and special tools.