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Split type electromagnetic flux

Split type electromagnetic flow model: BY-LDE brand Boyuan model BY-LDE type electromagnetic flow meter measurement range 0.32-191037.6 (m3/h) accurac

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Split type electromagnetic flux

Model: BY-LDE
brand	Boyuan	model	BY-LDE
type	Electromagnetic Flowmeter	measuring range	0.32-191037.6（m3/h）
accuracy class	0.5,1.0	Nominal Diameter	15-2600（mm）
Applicable Medium	conductive liquid	Working pressure	4.0（MPa）
operation temperature	≤180（℃）

Product features: The converter is installed within 30 meters or 100 meters of the sensor, and the two are connected by a shielded cable, which is called a split type electromagnetic flowmeter

The BY-LDE series split type electromagnetic flowmeter adopts * new technology. By using constant current low-frequency ternary rectangular waves or dual frequency rectangular waves for excitation, it not only has the advantages of rectangular wave magnetic fields, but also overcomes the disadvantages of sine wave magnetic fields; It can also eliminate errors caused by fluctuations in power supply voltage, changes in power supply frequency, and changes in excitation coil impedance; And it has excellent zero stability and is not affected by fluid noise interference. Therefore, it has the characteristics of high stability and high reliability. The measurement principle of intelligent electromagnetic flowmeter is based on Faraday's law of electromagnetic induction. The electromagnetic flowmeter consists of a sensor and a converter. The sensor is installed on the measurement pipeline, and the converter can be combined with the sensor to form an integrated electromagnetic flowmeter. The converter is installed within 30 meters or 100 meters of the sensor, and is connected by a shielded cable to form a separate electromagnetic flowmeter. The main components of the intelligent electromagnetic flowmeter sensor are: measuring tube, electrode, excitation coil, iron core, and magnetic yoke housing. Intelligent electromagnetic flowmeter is mainly used to measure the volumetric flow rate of conductive liquids and slurries in closed pipelines. Intelligent electromagnetic flow meters are widely used in industries such as petroleum, chemical, metallurgical, textile, food, pharmaceutical, papermaking, as well as environmental protection, municipal management, water conservancy construction, etc., such as water, sewage, mud, pulp, various acids, alkalis, salt solutions, food slurries, etc.

BY-LDE Split Electromagnetic Flow Meter Product Features:

1. Measurement is not affected by changes in fluid density, viscosity, temperature, pressure, and conductivity;

2. There are no obstructing flow components or pressure loss inside the measuring tube, and the requirements for straight pipe sections are relatively low;

3. Series nominal diameter DN15~DN3000. There are multiple options for sensor lining and electrode materials;

4. The converter adopts a novel excitation method, with low power consumption, zero point stability, and high degree. The flow range can reach 1500:1;

5. The converter can be integrated or separated from the sensor;

6. The converter adopts a 16 bit high-performance microprocessor, 2x16 LCD display, convenient parameter setting, and reliable programming;

7. The flowmeter is a bidirectional measurement system equipped with three integrators: forward total, reverse total, and differential total; Can be displayed Zhuang, reverse flow, and multiple outputs: electric

Flow, pulse, digital communication HART;

8. The converter adopts surface mount technology (SMT) and has self checking and self diagnostic functions;

Main technical data:

Technical data of the whole machine and sensors

Execution standards	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, 2600, 2800, 3000
*High flow velocity	15m／s
linear measure	DNl5～DN600	Indication: ± 0.3% (flow rate ≥ 1m/s); ± 3mm/s (flow rate<1m/s)
	DN700—DN3000	± 0.5% of the indicated value (flow rate ≥ 0.8m/S); ± 4mm/s (flow rate<0.8m/S)
Fluid conductivity	≥5uS／cm?
nominal pressure	4.0MPa	1.6MPa	1.0MPa	0.6MPa	6.3、10MPa
	DNl5～DN150	DNl5～DN600	DN200～DN1000	DN700～DN3000	Special Orders
ambient temperature	sensor	-25 ℃ -+60 ℃
	Converter and integrated model	-10 ℃ -+60 ℃
Lining material	Polytetrafluoroethylene, chloroprene rubber, polyurethane, perfluoroalkoxy (F46), mesh PFA
*High fluid temperature	- Body type	70℃
	separated	Polychloroprene rubber lining	80℃； 120 ℃ (specify when ordering)
		Polyurethane lining	80℃
		PTFE lining	100℃； 150 ℃ (specify when ordering)
		Perfluoroethylene propylene (F46)
		Mesh PFA
Signal electrode and ground electrode materials	Stainless steel 0Crl8Nil2M02Ti, Hastelloy C, Hastelloy B, titanium, tantalum, platinum/iridium alloy, stainless steel coated with tungsten carbide
Electrode scraper mechanism	DN300—DN3000
Connecting flange material	carbon steel
Grounding flange material	Stainless steel 1Cr18Ni9Ti
Imported protective flange materials	DN65—DNl50		Stainless steel 1Cr18Ni9Ti
	DN200～DNl600		Carbon steel and stainless steel 1Cr18Ni9Ti
Shell protection	DNl5~DN3000 separable rubber or polyurethane lined sensor			IP65 or IP68
	Other sensors, body type flow meters, and separate converters			IP65
Distance (separated type)	The distance between the converter and the sensor is generally not more than 100m

Converter technology data

power supply	exchange	85—265V，45—400Hz
power supply	direct-current	11—40V
Operation keys and display	Touch-tone	4A thin film button can be used to set and select all parameters, and can also be utilizedPCmachine(RS232)Programming the converter settings;
		3goLCDWide viewing angle, wide temperature range, backlit display;
		auxiliary word for ordinal numbers1Display traffic values in rows;
		auxiliary word for ordinal numbers2Display flow units in rows;
		auxiliary word for ordinal numbers3Display the percentage of traffic, total forward, total reverse, total difference, alarm, and flow rate.
	Magnetic key type	2A magnetic key is used to display parameter selection and reset, utilizingPCmachine(RS232)Programming the converter settings;
		2goLCDWide viewing angle, wide temperature range, backlit display:
		auxiliary word for ordinal numbers1go:Magnetic key selection:Display traffic percentage, forward total amount, reverse total amount, difference total amount, alarm, and flow rate.
		auxiliary word for ordinal numbers2Row: Display traffic.
Internal integrator	Positive total, negative total, and differential total.
output signal	Unidirectional analog output	Fully isolated, load≤600D．(20mAtime)；
		upper limit:0—21mAOptional, each levellmA；
		Lower limit:0—21mAOptional, each level1mA；
		Programming for forward and reverse flow output modes.
	Bidirectional analog output	The lower limit is. perhaps4mA, other analog outputs in the same direction.
	Bidirectional pulse output	Two outputs correspond to forward and reverse flow respectively,frequency0～800Hz,upper limit1—800Hzoptional,Each levelIHz；
		Square wave or selected pulse width, selected upper limit of pulse width2．5SEach level1ms；
		Passive isolation transistor switch output, capable of absorbing250mACurrent, withstand voltage35V.
	Dual channel alarm output	Can be alarmed(programming)High/low flow rate, air traffic control, fault status, positive/negative flow rate, analog quantity exceeding range, pulse quantity exceeding range, pulse small signal cutoff, optional output polarity;
	Dual channel alarm output	Transistor switch output with isolation protection,absorbable250mAThe current,pressure resistance35V.(Not isolated from pulse output)
digital communication		RS232，RS485，HART

Selection of lining

Lining material	Performance	*High medium temperature		scope of application
Lining material	Performance	—body type	separated
Polytetrafluoroethylene（F4)	It is a chemically stable plastic that can withstand boiling hydrochloric acid, sulfuric acid, nitric acid, and aqua regia, as well as concentrated alkali and various organic solvents. Not resistant to corrosion from chlorine trifluoride, high-temperature chlorine trifluoride, high flow rate liquid fluorine, liquid oxygen, and auto oxygen.	70℃	100℃ 150℃ (Special order required)	1Strong corrosive media such as concentrated acid and alkali.2Sanitary media.
Perfluoroethylene propylene（F46)	sameF4The wear resistance and negative pressure resistance are higher thanF4.		ditto
Polyfluoroethylene（Fs)	The upper limit of applicable temperature is lower than that of polytetrafluoroethylene, but the cost is also lower.		80℃
neoprene	1Has excellent elasticity, high tensile strength, and good wear resistance.2Resistant to corrosion in general low concentration acid, alkali, and salt media, but not resistant to corrosion in oxidizing media.		80℃ 120℃ (Special order required)	Water, sewage, and weakly abrasive slurry.
polyurethane	1Extremely strong wear resistance.		80℃	Neutral strong abrasion slurry, coal slurry, mud
polyurethane	2Poor corrosion resistance.		80℃	Neutral strong abrasion slurry, coal slurry, mud

Selection of imported protective flanges and grounding flanges (or grounding rings)

Type of flange	Scope of application
Grounding flange(Or grounding ring)	Suitable for non-conductive pipelines such as plastic pipes, but sensors with grounding electrodes do not require them.
Import protection flange	Choose when the medium has strong wear resistance.

Selection of electrodes

Electrode material	Corrosion resistance and wear resistance
Stainless steel 0Crl8Nil2M02Ti	Used for weakly corrosive media such as industrial water, domestic water, sewage, etc., suitable for industrial sectors such as petroleum, chemical, steel, as well as municipal and environmental protection fields.
Hastelloy B	It has good corrosion resistance to all concentrations of hydrochloric acid below boiling point, as well as to non chlorinated acids, bases, and non oxidizing salt solutions such as sulfuric acid, phosphoric acid, hydrofluoric acid, and organic acids.
Hastelloy C	Can withstand corrosion from non oxidizing acids such as nitric acid, mixed acids, or mixed media of chromic acid and sulfuric acid, as well as corrosion from oxidizing salts such as Fe, Cu, and other oxidants, such as hypochlorite solutions above room temperature and seawater corrosion
titanium	Capable of withstanding corrosion from seawater, various chlorides and hypochlorites, oxidizing acids (including fuming sulfuric acid), organic acids, and alkalis. Not resistant to the corrosion of relatively pure reducing acids (such as sulfuric acid, hydrochloric acid), but if the acid contains oxidants (such as nitric acid, Fc++, Cu++), the corrosion is greatly reduced.
tantalum	It has excellent corrosion resistance and is very similar to glass. Except for hydrofluoric acid, fuming sulfuric acid, and alkali, it can almost withstand corrosion from cutting chemical media (including boiling point hydrochloric acid, nitric acid, and sulfuric acid below 50 ℃). Dig in alkali; Corrosion resistance.
Platinum/titanium alloy	Almost capable of cutting chemical media, but not suitable for aqua regia and ammonium salts.
Stainless steel coated with tungsten carbide	Used for non corrosive and highly abrasive media.
Note: Due to the wide variety of media and the complex factors such as temperature, concentration, and flow rate that affect their corrosiveness, this table is for reference only. Users should make their own choices based on the actual situation, and if necessary, conduct corrosion resistance tests on the selected materials, such as hanging plate tests.

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