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CHENGFENGFLOWMETERintelligentelectromagneticflowmeterisbasedonastandardmanufacturingsystemanddevelopment

詳細(xì)介紹

CHENGFENG FLOWMETER intelligent electromagnetic flowmeter is based on a standard manufacturing system and development, its advanced design concepts to ensure the high precision and high reliability of the product, compared with the old electromagnetic flowmeter, it has high measurement precision, high reliability, good stability, complete function, long life and other advantages.

Summary

The electromagnetic flowmeter is composed of two parts by electromagnetic flow sensor and electromagnetic flow converter.The operation of an electromagnetic flowmeter is based on Faraday law of electromagnetic induction.The mainly parts of the sensor are: measuring tube,electrode poles,excitation coil,iron core,yoke and housing. The measuring tube of the sensor is a short alloy tube whose diameter is D, the inner surface of it has an insulating liner.Two electrodes are fixed in the measuring tube along with the diameter direction of it and they usually flush with the inner surface liner.When excitation coil pulsed by two-way square wave,there generates a working magnetic field with a flux density B in the vertical direction of the measurement axis.In the meantime,if some electrical conductivity liquid flows at an average velocity V through the measuring tube ,cuts lines of the magnetic field,there generates induced electromotive force E.Electromotive force E is directly proportional to the product of flux density B、measuring tube diameter D and average velocity V,that's: E BVD. Electromotive force E(flow signal) is measured by the electrodes and transmitted to transducer through cable.After the transducer handles the flow signal by magnifying it, the flow and total amount can be displayed,also will output pulse and analog current etc.

Main technical parameters

Technical parameters of whole flowmeter and sensor

Chart 1
Carried Standard	ANSI/DIN/JIS
DN	3.6.10.15.20.25.32.40.50.65.80.100.125.150.200.250.300.350.400.450.500. 600.700.800.900.1000.1200.1400.1600.1800.2000.2200.2400.2600.2800.3000
Max.Flow Velocity	15m/s
Accuracy	±0.5% of indicating value(flow velocity 0.8m/s); ±4mm/s(flow velocity＜0.8m/s )
Fluid Conductivity	≥5uS/cm
Nominal Pressure	4.0MPa	1.6MPa	1.0MPa	0.6MPa		6.3,10MPa etc.
	DN3~DN150	DN15~DN600	DN200~DN1000	DN700~DN3000		Special Ordering
Lining Material	PTFE,Poly neoprene,Polyurethane,F46,PFA with net
	Sensor		-25 deg.C~+60 deg.C
	Convertor and integrated type		-10 deg.C~+60 deg.C
Fluid Max.Temperature	Integrated type	70 deg.C
	Separated type	Poly Neoprene Lining		80 deg.C;120 deg.C(notes in order)
		Polyurethane Lining		80 deg.C
		PTFE Lining		100 deg.C;150 deg.C(notes in order)
		FEP Teflon
		PFA with net
Material of signal electrode and ground electrode	SS316L,HastelloyB,HastelloyC,Ti,Ta,Platinum-iridium alloy,Stainless steel coating with tungsten carbide
Electrode drawknife apparatus	DN80～DN3000
Connection flange material	Carbon steel
Connection ring material	Stainless steel1Cr18Ni9Ti
Enclosure protection	ND15~DN3000 separated sensor with rubber or PU lining				IP65 or IP68
	Integrated(rounded converter)				IP65
	Other sensors and separated converter				IP65
	Explosion proof sensor and converter				IP65
Spacing(separated type)	Normally the separation distance between converter and sensor is less than 100m,if more please order specially.(Note: our company provide 10m length standardly,if need more, please indicate the length in order, and the cost will be add more)
Output of analog current	0~10mA load resistance 0~1.5Ω
	4~20mA load resistance 0~750Ω
Frenquency output	1~5000Hz
Pulse output	Separated type output by two way: forward and reverse flow; integrated type output one way
	Frenquency range:0~5KHz,uper limit 1~5 optionally
	Square wave or pulse with 25ms pulse width
	Transistor switch output with isolation protection,can absorb 250mA current and withstanding 35V voltage
Two-path alarm output	Alarmable(programable)high/low flow,blank pipe,fault condition,forward and reverse flow,simulation volume exceeds range,pulse volume exceeds range,disconnect pulse small signal
	Transistor switch output with isolation protection,can absorb 250mA current and withstanding 35V voltage(Not isolated with pulse output)
Digital communications	RS232,RS485,HART(add specially)
Explosion proof mark	Integration ExdeiaⅡCT4
	Separated Exd[ia] ⅡCT4(converter) ExdeiaⅡCT4(sensor)

[Type Selection]

CHENGFENG FLOWMETER from factory has been committed to flow meter for decades and the research and development and production of the material level meter, over the years, we sell not only products, but also a kind of attitude and service, pay attention to is the feeling of the customer experience, from the perspective of customers, strive to achieve consistent perfect pre-sale and after-sale!

CHENGFENG FLOWMETER for flowmeter market customer demand, carry on the improvement of professional products, technology research and development, and strive to make customer satisfaction of the flowmeter.CHENGFENG FLOWMETER variety, style complete, direct manufacturers, quality assurance, affordable, welcome customers to come to consult, the choose and buy.Changzhou into feng help selection, solve your doubt flowmeter.

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