Digital Electromagnetic Flowmeter for Measuring Muddy Water (JH-DCFM-H)

Model NO.: JH-DCFM-H
Measuring Media: Liquid
Measuring Principle: Electrical Principles
Measurement Object: Closed Pipeline
Certification: CE, RoHS, ISO
Connection: Flange
Output: Pulse+4-20mA
Lining Materia: PTFE/Rubber
Electrode Materia: Ss316L,Hc, Hb, Ti, Ta
Body Material: Ss304
Flow Range: 0.16-25000 M³/H
Pipe Size: Dn15-2000
Power Supply: 220V/24V/3.6V Battery Operated
Communication: RS232,RS485,Hart,Modbus,
Protection Class: IP67,IP68
Trademark: JH
Specification: CE, ISO
Origin: Shanghai
HS Code: 9026100000

                                                              Electromagnetic flowmeter

Measuring Principles:
The measuring principle of electromagnetic flowmeter is based on the electromagnetic induction law of Farady. The sensor is mainly composed of measuring tube with isolate lining, a pair of electrodes installed by penetration of the measuring tube wall, a pair of coils and iron core to produce working magnetic field. When the conductive fluid flows through the measuring tube of the sensor, the voltage signal in direct proportion to the average flow velocity of the fluid will be inducted on the electrodes. The signal is amplified and treated by the transmitter to realize various display functions.
 
Main Applications:
Electromagnetic flowmeter can be used to measure the volume flow of conductive fluid in a closed pipeline. It is widely applied in the flow measurement and control in the fields of chemical and petroleum industry, metallurgy industry, water and waste water, agriculture and irrigation, paper making, food and beverage industry and pharmaceutical industry.
 

Features:

--Large choice of liner materials suitable for drinking water, wastewater, chemicals and other liquids.
--Suitable for use in custody transfer applications.
--Measurement is independent of the flow profile.
--Abrasion and corrosion-resistant liners available.
--Electric conductivity of medium can be used for detection of product change.
--No additional pressure loss.
--No moveable parts and long working life.
--Two-way measurement system to detect the positive and negative flow.
--Site LCD displays instantaneous flow, accumulative flow, flow rate. 
--Various types provided according to specific conditions.

Technical parameters:

 Flange connection Inserted type Threaded connection Flange connection Inserted type Threaded connection
Caliber(mm) 15~3000 125~3000 10~25 15~3000 125~3000 10~25
Pressure(MPa) 0.6,1.0,1.6,4.0
Accuracy ±0.5%, ±0.3%(±0.2% available for special order)
Applicable medium Conductive liquid and slurry
Medium Temperature ≤150°C
Medium Conductivity ≥5μS/cm
Medium Velocity ≤15 m/s
Ambient Temperature:-25°C~+60°C, Humidity: 5%~90%
Liner Material DN10mm~32mm: Polytetrafluoroethylene(F4), Polyurethane;
DN40mm~1000mm: F4, Polyurethane, Polychloropree rubber;
DN1000mm~3000mm: Polychloropree rubber;
Others: Polyvinyl fluoride, Fluorinated ethylene-propylene(FEP), etc.
Electrode Material Mo-containing stainless steel, Hastelloy B, Hastelloy C, Titanium alloy, Tantalum alloy, Platinum-iridium alloy, Stainless steel-coated tungsten carbide
Electrode Type Fixed type(DN150~DN2600); Blade type(DN300~DN1600)
Flange Material SS, CS
Communication RS485, RS232, HART, Modbus, Profibus-DP
Signal Output Analog 4-20mA, pulse, isolated, load resistor≤750Ω
Power Supply AC 85-265V, 45-63Hz, power≤20W; 
DC 11-40V; lithium battery(3.6V)		 AC 85-265V, 45-63Hz, power≤20W; 
DC 11-40V

 
Converter technical data:
 

Current output		 4~20Ma
Frequency output pulse :
High level=external power supply-1V
External volts≤30 V
Low level ≤ 0.5V
Load current ≤ 50 mA
Max.frequency output :5KHz .
Frequency of pulse output:  0~5Hz .
Display With 8digit LCD display
Display unit Instantaneous flow units  : m 3  /h ,  m 3  /m , m 3  /s , L/h , L/m ,  L/s , G/h , G/m , G/s .  Total flow units: m 3 , L , G .
Communication MODBUS protocol ( optional ) or HART ( optional )
Protection grade IP65
Power supply 220 V AC +20/-60%  , 50/60 Hz , 24 V DC +50/- 25%  , max.10VA
EMC radiation standard EN 61326-1 : 2006  (BS EN50081-1)
EMC anti-jimming standard EN 61326-1: 2006 (BS EN50082-1)
CE security EN 61010-1 : 2001
Ambient temp. 5~55°C
Ambient humidity <85 % r.h. (non   co n densation)



 

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