Product Details

MP-LDG Electromagnetic Flowmeter

Product Description

MP-LDG Electromagnetic Flowmeter is composed of sensor and convertor. It works on Faraday's electromagnetic

indication principle, used for the measuring of volumetric flow rate of liquid whose conductance is greater than 5μ S/cm. It also cn measure the corrosive liquids as strong acid, alkali, etc. and two phase (liquid-solid) suspensions as mud, ore pulp, paper pulp, etc. It is widely applied in the field of petroleum, chemical industry, metallurgy, textile, papermaking, environmental protection, food and municipal administration, irrigation project, river dredge, etc.

Measuring principle

According to the Faraday's electromagnetic induction principle, pair of measuring electrodes are installed on the

wall of tube whose axes are perpendicular both to the measuring tube wall axis and the magnetic flux. As the

conductive liquid is moving long the tube axis, the conductive liquid cuts the magnetic flux, an induced voltage is produced.

This voltage is picked up by the electrodes and is proportional to the flow rate, its value is:

E=KBVD

E=Induced voltage

K= coefficient related to the distribution of magnetic field etc.

B=magnetic flux intensity

V= average flow velocity of conductive liquid

D= distance between electrodes, (inner diameter of tube)

The induced voltage E is regarded as the flow signal of the sensor and is transmitted to the converter.

After through amplifying, converting, filtration and a series of digital treatment the instantaneous and

tantalizer flow rate are displayed on the LCD. The converter has 4-2OmA output, alarm and frequency

outputs, and has Rs- 485ect. Communication connection.

Characteristics

1.No obstacle existed the measuring tube, so the pressure loss is zero, hardly blocked.

2.If the proper electrodes and lining material are adopted, then the request of anticorrosion, wear resistance canbe satisfied.

3.The measuring results have no relation with the physical parameters of the liquid, such as pressure, temperature, density, viscosity, conductivity rate( but not below 5p S/cm!), etc... it is not influenced by the circumstances, so the accuracy is high, working process is stable and reliable.

4.Adopt the dual row flow indicator of back lighted dot array, displays the instantaneous and totaled flow rates,simultaneously, also displays the working status, parameters, measuring units, etc...
5.The measuring range of this flow meter is wide. Its range ability normally is 20:1, generally can reach 30:1 or evenlarger.
6.This flow meter has multi-functional outputs, can be matched with computer, combined instrument unit; can meetthe requirement of printing, communication and networking.

Technical parameters

Conductivity	>5μ S/cm.
Velocity	0.1-15m/s
Accuracy	Measured value ±0.5%,±1%
Environment condition	Ambient temperature -10°C-50°C
Environment condition	relative humidity 5%-90%
Medium temperature	-25°C~ +180°C
Working pressure	DN10-80:PN≤4MPa
	DN100-300:PN≤1.6MPa
	DN350-1000:PN≤1MPa
	Higher pressure can be specially ordered
Power supply	220V AC 50Hz(90-245V AC 50Hz) 24V DC (20-36V DC)
Power consumption	6.5VA
Protection grade	Standard type IP65, special type IP67 or IP68
Electrode material	316L,HC,HB,Pt,Ti,Ta
Liner material	1. NE 2. PUNE 3.PTFE 4.PFA 5. F46