IP67 Electromagnetic Integrated Oil Water Air Flow Meter China OEM Factory

Introduction
PCL series electromagnetic flowmeters, composed of sensor and converter, work based on Faraday's law of electromagnetic induction. It is used to measure electrical conductivity of liquid or solid. Generally, the electrical conductivity should be over 5uS/cm (electrical conductivity of tap water, raw water is about 100-500uS/cm. It can also be used to measure various mediums like acid, alkali, saline solution, paper pulp, ore pulp and so on, but these mediums cannot contain a lot of magnetic materials and bubbles.

Working principle
The principle of the sensor is based on Faraday's law of electromagnetic induction. It is installed a pair of detection electrodes on the pipe wall, where the measurement pipe axis and magnetic field lines are vertical. When the conductive liquid moves along the measurement pipe axis, the conductive liquid cuts magnetic field lines and produces induced electromotive force, which can be measured by the two electrodes on the meter pipe. The result can be calculated by the formula:

 

Specifications

Dimension

 

Diameter (mm)	Dimension (mm)
	L	W	H
15	160	95	127
20	160	95	137
25	160	115	147
32	160	115	155
40	195	150	165
50	195	165	187
65	195	185	202
80	195	200	223
100	245	220	249
125	245	250	278
150	295	285	303
200	345	340	358
250	395	395	418
300	500	445	468
350	500	505	560
400	600	640	614
450	600	670	656
500	600	670	710
600	600	780	810
700	700	895	995
800	800	1015	1115
900	900	1115	1215
1000	1000	1230	1350
1200	1200	1405	1505

(Data table for reference only)
 

Lining material selection

Lining material should be chosen according to the erosion, abrasion and temperature of measuring medium. The applicability of common lining materials are as follows.
 

Lining Material	Main Properties	Scope of Application
CR	Oil proof, solvent resistance, and resist the erosion of common medium such as acid, alkali, salt, etc.	0ºC-80ºC non-strong acid, non-strong alkali and non-strong oxidized medium Be able to measure sewage and mud
IR	Good abrasive resistance, corrosion resistance, insulativity, cold resistance Low oil proof, aging resistance, oxidative resistance	-10ºC-70ºC non-strong acid, non-strong alkali and non-strong oxidized medium; suitable for drinking water
PU	Very good abrasive resistance and flexibility Low acid and alkali resistance	-25ºC-60ºC Ore pulp, coal slurry and mud with neutral strong abrasive resistance
PFA	Good hydrophobicity, non-viscousness and thermostability Great corrosion resistance, can resist strong acid, strong alkali, organic solvent and all saline solution Good negative pressure resistance, which can be increased by adding metal net inside Low abrasion resistance	-25ºC-140ºC non-strong abrasion resistance medium Healthcare medium
PTFE	Have the most stable chemical properties in plastics, and can resist boiling hydrochloric acid, sulfuric acid, nitric acid, aqua regia, strong alkali and all kinds of organic solvents, but cannot resist the corrosion of chlorine trifluoride, high temperature nitrogen trifluoride, liquid fluorine, liquid oxygen and ozone Low abrasion resistance Low negative pressure resistance	-25ºC-140ºC Strong corrosion medium such as strong acid and alkali Healthcare medium
FEP(F46)	Hydrophobic and non-viscous Corrosion resistance is inferior to PFA Negative pressure resistance can be increased by adding metal net inside. Low abrasion resistance	-25ºC-100ºC non-strong abrasion resistance medium Healthcare medium

 

Electrode material selection

Electrode material should be selected according to the corrosion resistance of the measuring medium.
 

Electrode Material	Main Properties
316L	Measure the medium such as water, sewage or inorganic acid, organic acid with slight corrosion.
HC	Resist the corrosion of oxidizing acid, such as nitric acid and mixed medium of chromic acid and sulfuric acid, and oxidative hydrochloric acid, such as Fe+++, Cu++ and some other oxidants, such as sub-argon salt solution higher than normal temperature and oily water.
Ti	Resist the corrosion of salt water, various oxides, hypochlorite, oxidizing acid (including fuming sulfuric acid, nitric acid), organic acid, alkali and so on. It is not resistant to the corrosion of pure reductive acids such as sulfuric acid and hydrochloric acid, but if oxidizing agents are contained in acid, the corrosion is greatly reduced.
Ta	Have good corrosion resistance similar to glass. Resist the corrosion of almost all chemical medium, except hydrofluoric acid, fuming sulfuric acid and alkali. Sodium hydroxide and other alkaline solutions are not applicable.
Pt-Ir	Have good corrosion resistance of all acid, and can resist the corrosion of alkali and all salt.

 

Ground ring selection

The inductive signal voltage of electromagnetic flowmeter is low, so it is easy to be affected by outside noise or other electromagnetic signals. The function of ground ring is to form a space to shield outside interference so as to increase the accuracy by grounding the body of flowmeter. (The ground ring is required when you use non-metal pipe.) Installation methods in different conditions are as follows.

How to order

Model: PCL
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FAQ:
1.   Q: Are you manufacturer or trading company?
        A: We are manufacturer which focuses on pressure sensor for 33 years.
2.   Q: What international certificates do you have?
        A: ISO9001, CE, RoHS Certificated.
3.   Q: What is your production capacity?
        A: We produced 1500000 pieces pressure sensor in year 2017.
4.   Q: What is the lead time of your product?
        A: Stocks are available for some products. The typical lead time is 8~14 working days for product without customization. 
       Note: lead time may vary base on different products. Please contact us for detailed lead time. 
5.   Q: What is the warranty of your products?
       A: Our warranty time is 18 months after shipment.
6.   Q: Do you provide customized products?
       A: Yes, we can laser mark your logo, model and product information according to your requirement. We provide OEM and ODM service.