LDG Electromagnetic Flowmeter | Global Trade leader ecrobot

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LDG Electromagnetic Flowmeter

Posting date : Oct 31, 2014

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Membership

Free Member Scince Oct 31, 2014

FOB Price

400-800USD/Unit

Min. Order Quantity

Supply Abillity

100

Port

Shanghai

Payment Terms

T/T,Western Union，L/C

Package

International Standard Wood Case

Keyword :

Flowmeter

Category

MACHINERY & ELECTRICAL | Nuclear reactors | Pumps for liquid | Pumps for liquid

Contact

Shingo Zhang

Selling Leads Detail

Company Info

Quick Detail

Place of Origin

China [CN]

Brand Name

Firstcon

Model Number

LDG

HS-CODE

8413-19

Package & Delivery Lead Time

Package

International Standard Wood Case

Delivery Lead Time

Within 14-30 Days After receipt of payment

Detailed Description

LDG Electromagnetic Flowmeter

Overview

LDG series of intelligent electromagnetic flowmeter is made according to the law of electromagnetic induction, which is used to measure the volume flow of conducting liquid in the pipe, such as water, sewage, slurry, ore pulp, acid, alkali, salt liquids and food slurry, etc. It is widely used in the industries of petrochemical, mining, coal and water conservancy which solve the drainage, sewage treatment problems.

Operating Principle

The electromagnetic flowmeter is based on the theory of Faraday's law of electromagnetic induction.

When a conductor cuts magnetic line of force, it will generate EMF (Electromotive Force). According to this principle, the volume of flowing conductive fluid in pipe can be measured, flowing direction of conductive fluid is perpendicular to the direction of electromagnetic field, an alternating magnetic field is applied in a direction which is perpendicular to the conduit, and install a pair of electrodes on both sides of the conduit’s inner surface which has insulated lining. When the conductive liquid goes through the conduit, both electrodes generate EMF because magnetic line of force is being cut. EMF is proportional to the flow, finally, the flow can be exported.

Features

1. Measurement is not influenced by the changes of liquid density, viscosity, pressure and conductivity.

2. No active and choked flow parts, no pressure loss, no blocking, measurable for the liquid with fiber, solid particles and suspended solids.

3. Reaction of the instrument is sensitive. The measuring range, the flow rate is 0.3-15m/s, conductive liquids of conductivity≥5μs/cm all can be measured, and measuring range can be selected arbitrarily.

4. The instrument uses a low-frequency three-state square-wave excitation technology, advanced small-signal processing technology and software technology, so it has the strong anti-interference, high precision, stable and reliable.

5. The instrument is not affected by the flow direction of liquid, can measure as both forward and reverse installation, and easy to install, less demanding for the straight pipeline.

6. Corrosion resistance and abrasion resistance of electrode and the lining material of electromagnetic flow meter are excellent, with a long service life. According to the special condition requirements of users, we can produce electromagnetic flowmeters, for example, electromagnetic flowmeter of submerged type.

7. Impact resistance and vibration resistance of the instrument are excellent.

8. Not measurable for gas and non-conducting liquids.

Main Technical Parameters

Flow Measurement Range and Turndown Ratio		Display turndown ratio 1: 150, Accuracy turndown ratio Grade 0.3 1: 4, Grade 0.5 1: 10, Grade 1.0 1: 20
Velocity range		0.3~15m/s
Medium conductivity		≥5μs/cm
Measurement Accuracy		Grade 0.3, Grade 0.5, Grade 1.0
Medium Temperature		-20℃~60℃, -20℃~90℃, -20℃~100℃, -20℃~180℃
Pressure		1.6, 2.5, 6.4, 16, 26, 42Mpa
Operating Environment		Temperature -20℃~+50℃ Humidity≤85%, Air pressure 86kpa~106kpa
Output Signal		Frequency output 0-5KHz Voltage output 1-5V Current output 4~20mA, RS-485 serial interface or RS232 interface, Mudbus protocol Hart protocol
Data storage time for outage		10 years
Power supply		①Outer supply 220VAC±15%; ②Outer supply 24VDC±5% (Optional) ③Lithium battery power supply
Power Dissipation		≤15w (Outer power supply)
Protection Level		IP67, IP68 (Only adapt to the separated type)
Lining Material		Polyurethane rubber, Chloroprene rubber, Polytetrafluoroethylene, F46 and so on.
Electrode Material		316L, Hastelloy HB, Hastelloy HC, Titanium, Platinum and so on.
Special Electrode Material		For example: Titanium, Tantalum, Platinum and other rare metal materials
Installing Type		Integrated type, Separated type (wall mounting type)
Explosion-proof Level		ExmdibIIBT4
Flow Range
Inner diameter (mm)	10	15	20	25	32	40	50	65
Qmin (m3/h) Qmax (m3/h)	0.0283 4.24	0.0636 9.54	0.12 16.96	0.176 26.5	0.29 43.42	0.452 67.85	0.7 106.0	1.19 179.0
Inner diameter (mm)	80	100	125	150	200	250	300	350
Qmin (m3/h) Qmax (m3/h)	1.8 271.0	2.82 424.0	4.41 662.0	6.36 954.0	11.3 1690	17.6 265.0	25.4 381.0	34.6 5190
Inner diameter (mm)	400	450	500	550	600	700	800	900
Qmin (m3/h) Qmax (m3/h)	45.2 6780	57.2 8570	77.6 10600	85.5 12800	101.0 15200	138.0 20700	180.0 27100	229.0 34300
Inner diameter (mm)	1000	1100	1200	1400	1600	1800	2000	2200
Qmin (m3/h) Qmax (m3/h)	282.0 42400	342.0 51300	407 61000	554.1 83121	732.7 108566	916.0 137404	1131.0 169635	1368.4 205258

Flow Range

Inner diameter (mm)	10	15	20	25	32	40	50	65
Qmin (m3/h) Qmax(m3/h)	0.0283 4.24	0.0636 9.54	0.12 16.96	0.176 26.5	0.29 43.42	0.452 67.85	0.7 106.0	1.19 179.0
Inner diameter (mm)	80	100	125	150	200	250	300	350
Qmin (m3/h) Qmax(m3/h)	1.8 271.0	2.82 424.0	4.41 662.0	6.36 954.0	11.3 1690	17.6 265.0	25.4 381.0	34.6 5190
Inner diameter (mm)	400	450	500	550	600	700	800	900
Qmin (m3/h) Qmax(m3/h)	45.2 6780	57.2 8570	77.6 10600	85.5 12800	101.0 15200	138.0 20700	180.0 27100	229.0 34300
Inner diameter (mm)	1000	1100	1200	1400	1600	1800	2000	2200
Qmin (m3/h) Qmax(m3/h)	282.0 42400	342.0 51300	407 61000	554.1 83121	732.7 108566	916.0 137404	1131.0 169635	1368.4 205258