Special Design for Water Flow Meter Electromagnetic - JEF-300 Electromagnetic Flowmeter –

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Special Design for Water Flow Meter Electromagnetic - JEF-300 Electromagnetic Flowmeter – Detail:

Product Details

JEF-300
JEF-303
JEF-304
JEF-302
JEF-301

Application

● General conductive liquid

● Strong corrosive liquids such as strong acid and alkali

● Uniform liquid-solid two-phase suspension liquid such as slurry, pulp, and paper pulp

Features

● Digital processing, strong anti-interference ability, reliable measurement, high precision, flow measurement range can reach 150:1;

● Ultra-low EMI switching power supply, the large voltage range of suitable power supply, good anti-EMI performance;

● Use 16-bit embedded microprocessor, with fast operation speed, high precision, and programmable low-frequency rectangular wave excitation, improving the stability of flow measurement and low power consumption;

● Use SMD parts and surface mount (SMT) technology, high circuit reliability;

● No moving parts in the pipe, no flow blocking parts, and there is almost no additional pressure loss in the measurement;

● It can modify the range of online on-site according to the actual needs of users;

● The measurement results are independent of the physical parameters such as flow velocity distribution, fluid pressure, temperature, density, viscosity;

● High-definition backlit LCD display, full Chinese menu operation, easy to use, easy to operate, easy to learn and understand;

● With digital communication signal output such as RS485, RS232, Hart, and Modbus (optional);

● With self-test and self-diagnosis function;

● With hourly total recording function, recording the total amount of flow in hours, suitable for time-sharing measurement (optional);

● There are three Integrators, which can display the forward accumulation amount, the reverse accumulation amount, and the difference calculation amount respectively. There is an internal power-down clock, which can record 16 power-down times. (optional);

● With an infrared handheld operator, with a 115KHZ communication rate, it can operate all functions of the converter remotely without contact (optional).

Product Portfolio

JEF-300 Electromagnetic Flowmeter (1)

Specifications

Measuring Medium	Conductive liquids containing impuritiesStrong corrosive liquids such as acid, alkali, seawater
Accuracy	士0.5%R		士1.0%R
Repeatability	0.1%		0.2
Range ratio	20:1
Flow velocity	0.5- 10m/s
Type	Material	Carbon steel
		Stainless steel
	Shape	Integrated type
		Split type
	Connection	Flange type
		Clamp-on type
		Thread type
		Plug-in type
Lining Material	Rubber	CR
		PU
	PTFE	PTFE
		FEP
		PFA
Nominal diameter	Rubber	DN 40- DN 2000
	PTFE	DN 10 – DN 600
Electrode	316L
	Hastelloy B
	Hastelloy C
	Ti
	Ta
	Pt
	Tungsten Carbide
Signal Input	4~ 20mA
	4- 20 mA/1 – 5 KHz
Data Interface	RS-232, RS485, HART, Modbus，Profibus
Working Environment	Medium temperature	Rubber : -20°C ~ +60°C
		Rubber(high-temperature) ： -20°C ~ +90°C
		PTFE ： -30°C ~ +120°C
		PTFE(high-temperature) ： -20°C ~ +160°C
	Environment condition	Temperature：-25°C ~ +60°CHumidity： 5% ~ 95 %
Power Supply	DC8~ 36V or AC85~ 264V（optional）
Protection	IP65 IP68

Optional Lining Material

Material		Spec.	Medium	Medium Temp.	Pipe Diameter
Rubber	CR	Abrasion resistance：good Corrosion resistance：normal	water, seawater	＜60°C	DN50-2000
Rubber	PU	Abrasion resistance：excellent Corrosion resistance：bad	slurry, pulp, and paper pulp	＜60°C	DN25-500
Fluorine Plastic	PTFE	Corrosion resistance：excellent	strong acid and alkali	＜120°C	DN25-1600
	FEP	Corrosion resistance：excellent	strong acid and alkali	＜120°C	DN10-200
	PFA	Corrosion resistance：excellent	strong acid and alkali	＜160°C	DN10-300

Optional Electrode

Material	Specification
316L	1 Domestic water, industrial water, raw water, well water, urban sewage; 2 Weak corrosive acids, bases and salt solutions.
Hastelloy B	Suitable: 1 Hydrochloric acid (less than 10% concentration) non-oxidizing acid; 2 Sodium hydroxide (concentration less than 50%), ammonium hydroxide alkali solution; 3 Phosphoric acid, organic acid; Not suitable: 1 Nitric acid.
Hastelloy C	Suitable:1 Mixed acid and mixed liquid of complex acid and sulfuric acid; 2 Oxidizing salts such as Fe+++, Cu++, seawater; 3 Phosphoric acid, organic acid; Not suitable:1 Hydrochloric acid.
Ti	Suitable:1 Chloride(chloride / magnesium / aluminum / calcium / ammonium / iron, etc.); 2 Sodium salt, potassium salt, ammonium salt, hypoaluminate, seawater; 3 Potassium hydroxide whose concentration is less than 50%, and the potassium hydroxide and barium hydroxide salt solutions; Not suitable: Reducing acids such as hydrochloric acid, sulfuric acid, hydrogen phosphate, krypton acid, etc.
Ta	Suitable: 1 Hydrochloric acid (less than 40% concentration), dilute sulfuric acid and concentrated sulfuric acid (excluding oleum); 2 Chlorine dioxide, ferric chloride, hypochlorous acid, sodium oxide, acetic acid, etc. 3 Oxidizing acids such as nitric acid (including fuming nitric acid), aqua regia at a temperature lower than 80°C; Not suitable: Alkali, Hydrogen Nitrogen Acid.
Pt	Suitable:All acid-base and salt solutions (including fuming sulfuric acid, fuming nitric acid) aqua regia, ammonium salt; Not suitable: Alkali, Hydrogen Nitrogen Acid.
Tungsten Carbide	Suitable:Pulp, sewage; Not suitable:Inorganic acids, organic acids, chlorides.

Configuration

Type	Shape	JEF-301 Integrated type
		JEF-302 Split type
		JEF-303 Plug-in type
	Material	1 Carbon steel
		2 Stainless steel
	Connection	F Flange type
		C Clamp-on type
		T Thread type
Lining Material	Rubber	1 CR
		2 PU
	PTFE	3 PTFE
		4 FEP
		5 PFA
Nominal diameter	DN mm
Electrode	SS 316L
	HB Hastelloy B
	HC Hastelloy C
	Ti
	Ta
	Pt
	TC Tungsten Carbide
Signal Input	A 4~ 20mA
	B 4- 20 mA/1 – 5 KHz
Data Interface	A RS-232 B RS485 H HART M Modbus P Profibus

Example: JEF3011F-3-DN100-Ta- A – B

PS: Standard configuration = Integrated flange carbon-steel electromagnetic flowmeter + PFFE material lining + DN100mm + Ta electrode+4~20Ma output+RS485