JEF-300 Electromagnetic Flowmeter

Short Description:

The JEF-300 series electromagnetic flowmeter consists of a sensor and a converter. It is based on Faraday’s law of electromagnetic induction, which is used to measure the volume flow of conductive liquid with conductivity greater than 5μs/cm. It is an inductive meter for measuring the volume flow of the conductive medium.


Product Detail

Product Tags

Product Description

In addition to measuring the volume flow of general conductive liquid, it can also be used to measure the volume flow of strong corrosive liquids such as strong acid and alkali and uniform liquid-solid two-phase suspension liquid such as slurry, pulp and paper pulp. It is widely used for flow measurement of petroleum, chemical, metallurgy, textile, papermaking, environmental protection, food and other industrial sectors and municipal management, water conservancy construction, rivers, and other fields.

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)
JEF-300 Electromagnetic Flowmeter (6)
JEF-300 Electromagnetic Flowmeter (5)
JEF-300 Electromagnetic Flowmeter (4)
JEF-300 Electromagnetic Flowmeter (2)
JEF-300 Electromagnetic Flowmeter (7)
JEF-300 Electromagnetic Flowmeter (8)
JEF-300 Electromagnetic Flowmeter (3)

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

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


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