1. Product introduce
(1) Measurement is not affected by the variation of flow density, viscosity, temperature, pressure andconductivity. High accuracy
measurement is guaranteed according to the linear measurement principle.
(2) No obstacle in the pipe, no pressure-loss and lower requirement for straight pipeline.
(3) DN 6 to DN2000 covers awide range of pipe size.
(4) A variety of liners and electrodes are available tosatisfy different flow characteristic.
(5) Programmable low frequency square wave field excitation, improving measurement stability andreducing power consumption.
(6) Implementing 16 bits MCU, providing high integration and accuracy;
(7) Full-digital processing, high noise resistance and reliable measurement;
(8) Flow measurement range up to 1500:1.
(9) High definition LCDdisplay with backlight.
(10) RS485, RS232 or hart interfacesupports digital communication.
(11) Intelligent empty pipedetection and electrodes resistance measurement diagnosing empty pipe and electrodes contamination
accurately.
(12) SMD component and surfacemount technology (SMT) are implemented to improve the reliability.
2. MainApplications
Electromagneticflow meter can be used to measure the volume flow of conductive fluid in aclosed pipeline. It is widely applied in the flow measurement and control inthe fields of chemical and petroleum industry, metallurgy industry, water andwaste water, agriculture and irrigation, paper making, food and beverageindustry and pharmaceutical industry.
3.Technical Specification
(1) The flowmeter is compliant to Standard ：“JB/T9248-1999 Electromagnetic Flow Meter”.
(2) Maximumflow speed: 15m/s
(3) DN size: 3, 6, 10, 15, 20, 25, 32, 40,50, 65, 80, 100, 150, 200, 250, 300, 350, 400, 450, 500, 600, 700, 800, 900,1000, 1200, 1400,
1600, 1800, 2000
(4) Accuracy:0.5%, 0.2%
(5) Nominal Pressure:
(6) Materials
Electrode Forms and Materials:
Electrode design hasfour forms: standard form, scraper form, detachable form and groundingelectrode.
Electrode material isselectable from stainlesssteel containing Mo, stainless steel coated with carbonized tungsten, Hastelloy B,
Hastelloy C, Titanium, Tantalum and platinum-iridium alloy.
Flange material: carbonsteel
Grounding ring:stainless steel
Inlet protection ring:carbon steel, stainless steel
(7) Enclosure IP65:IP68:only available for remote-type sensor with neoprene or polyurethane liner, notincluding flameproof model.
(8) Flameproof Standard
DN15-DN600compact-type: md II BT4
DN15-DN1600 remote-type: sensor and converterboth installed in dangerous area: md II BT4.
DN15-DN1600 remote-type: sensor installed indangerous area and converter installed in safe area: md II BT4
(9) Connection Cable
Special cable is needed to connect the sensorand the converter for remote-type flow meter. The cable length should not exceed 100 meters.
A 10-meter cable is supplied free of charge and the rest isto be ordered.
(10) General Specification of Converter
Power supply: AC 85-265V, 45-63Hz, ≤20W; DC 11-40V
Converter display andoperation: four keys are available to set all parameters. External handheld orPC can be used to do the configuration. High resolution LCD display withbacklight, empty pipe detection and self-diagnostic function are equipped inthe converter.
Digital communication:RS485, RS232, MODBUS,REMOTE
Output Signals:
Current output: fully-isolated, 4-20mA/0-10mA
load resistance:0-10mA: 0-1.5KΩ; 4-20mA: 0-750Ω.
Frequency output: bidirectional flow output. Frequency outputis proportional to the flow percentage of the full range. The converterprovides fully isolated transistor open collector frequency output ranged from1 to 5000 Hz. The external DC power supply should not exceed 35V and maximumcollector current is 250mA.
Pulse output: bidirectional flow output. The converter canoutput up to 5000cp/s pulse series, which is dedicated to external tantalization.Pulse factor is defined as volume or mass per pulse. It can be set to 0.001L/p, 0.01L/p, 0.1L/p,1L/p, 2L/p, 5L/p, 10L/p,100L/p, 1m3/p, 10 m3/p, 100 m3/p or 1000 m3/p. Pulse width is selectable fromauto, 10ms, 20ms, 50ms, 100ms, 150ms, 200ms, 250ms, 300ms, 350ms and 400ms.
Photo-coupler isolated transistor open collector circuit is used for pulseoutput. The external DC power supply should not exceed 35V
and maximum collector current is 250mA.
Flow direction indication: The converter is capable ofmeasuring both forward and reverse flow and recognizing its direction. Theconverter outputs 0V low level for forward flow, while +12V high level forreverse flow.
Alarm output: Twochannels of photo-coupler isolated open collector circuit are used for alarmsignal output. There are two alarm
outputs: high limit alarm and low limitalarm. The external DC power supply should not exceed 35V and maximum collectorcurrent is
250mA.
Damping constant: Dampingtime is selectable from 0 to 100s.
(11) Working Conditions
Maximum fluidtemperature:
Polychloroprenerubber 80 ℃
Polytetrafluoroethyleneat 100 ℃
Silicone rubber at 150 ℃
Polyurethane rubberat 70 ℃
Fluidconductivity: ≥ 5S/cm
Ambienttemperature: sensor: -25℃ to + 60℃; converter: -25℃ to + 60℃.
Relative humidity: 5%to 100%;
4. Product types
