Electromagnetic Flow Meter
General Description
Electromagnetic flowmeter suits for all kinds of liquids’ flow measuring such as electronic conductivity liquid, mud and slurry etc. on the basis of its min. conductivity. The result cannot be affected by temperature, pressure, viscosity and density.
It can also be used for measuring corrosive material as long as the right material has been chosen for the lining material. Solid medium will not affect the result.
Flow sensor and intelligent converter compact or separately composes a complete flowmeter.
Application
The main application area;
Pure water, sewage water, sea water
Electronic manufacture and assign
Chemistry and industrial medicine
Food industry
Feature
No move assembly, no abrasion
Measuring range rate: 1：100
No flow enhance equipment
Suits for various of electronic conductivity liquid
No affect from temperature, viscosity, pressure and density
Anti-corrosion
Measure both to and reverse flow
Huge display, easy operate
Long-term EEPROM to save data when lose power
Support MODBUS/HARTcommunication protocal
Wide working volts range
Self diagnose
Working principle
Its measuring principle bases on Faraday electromagnetic induction law:
When the liquid flow through the measuring pipe which all around magnetic field, the two vertical direction will have the induced electromotive force which is proportional with the mean velocity of stream.
Flowmeter consists of sensor and converter. Converter transfer field current to inner loop of the sensor to engender magnetic field. Conductivity liquid flow through the measuring pipe and get induced force because of cutting magnetic line. By then the electrode around the pipe wall incept induced force and transfer them to converter through signal wire. Converter filer induced force, spread, calculate and exchange them into proportional standard current signal and frequency signal.
Technical spec
Display reaches 8element liquid crystal display, current clock to indicate flow data. two kinds of units to choose: m3 or L.
Structure inserted style, compact type or separate type
Measuring medium liquid or solid-liquid two phase fluid, conductivity >0.5μs/cm2
Range 0.05m/s～12m/s
Accuracy range between 0.1m/s～10m/s can be 0.5%
DN(mm) 6mm~2000 mm
PN PN6, PN10,PN16,PN25,PN40,PN63,PN100,PN160,PN250,PN420 optional
Output signal 4~20mA or frequency
Communication RS485,support MODBUS protocol (not standard)、 support HART(option)
Connection DN6~DN2000 flange connection
Connection standard suits for all kinds of flange standard (eg:BS EN1092-1)
Standard accuracy apply to EN1434-1：2003 standard
CE certificate apply to LVD 2006/95/EC and EMC 2004/108/EC
EN 61326-1:2006 radiation standard (express apply to BS EN50081-1)
EN 61326-1:2006 anti-jamming standard (express apply to BS EN50082-1)
EN 61010-1:2001
Protection grade compact type for IP65，separately type for IP67or IP68(optional)
Power supply AC86～220V or DC24V(optional)
Ambient temperature 5~55℃
Ambient huminity <85 % r.h (noncondensation)
|
DN(mm)
|
Lining material
|
Flow range ( m3/h )
|
Size( mm )
|
Connection size ( mm )
|
|
Ne
|
FEP
|
PTFE
|
Normal
|
Min.
|
Max
|
L
|
H
|
B
|
b
|
¢K
|
n-¢d
|
¢D
|
|
10
|
|
●
|
|
0.7
|
0.03
|
2.8
|
160
|
254
|
152
|
102
|
65
|
4-¢14
|
95
|
|
15
|
|
●
|
|
1.5
|
0.06
|
6.4
|
160
|
254
|
65
|
4-¢14
|
95
|
|
20
|
|
●
|
●
|
2.5
|
0.11
|
11
|
160
|
254
|
75
|
4-¢14
|
105
|
|
25
|
|
●
|
●
|
3.5
|
0.18
|
18
|
160
|
254
|
85
|
4-¢14
|
115
|
|
32
|
|
●
|
●
|
6
|
0.29
|
29
|
270
|
100
|
4-¢18
|
140
|
|
40
|
|
●
|
●
|
10
|
0.45
|
45
|
200
|
280
|
110
|
4-¢18
|
150
|
|
50
|
●
|
●
|
●
|
15
|
0.71
|
71
|
294
|
125
|
4-¢18
|
165
|
|
65
|
●
|
●
|
●
|
25
|
1.19
|
119
|
313
|
145
|
8-¢18
|
185
|
|
80
|
●
|
●
|
●
|
40
|
1.81
|
181
|
326
|
160
|
8-¢18
|
200
|
|
100
|
●
|
●
|
●
|
60
|
2.83
|
283
|
250
|
344
|
180
|
8-¢18
|
220
|
|
125
|
●
|
●
|
●
|
100
|
4.42
|
442
|
372
|
210
|
8-¢18
|
245
|
|
150
|
●
|
●
|
●
|
150
|
6.36
|
636
|
300
|
403
|
240
|
8-¢22
|
285
|
|
200
|
●
|
●
|
●
|
250
|
11.3
|
1130
|
350
|
460
|
295
|
12-¢22
|
340
|
|
250
|
●
|
●
|
●
|
400
|
17.66
|
1766
|
400
|
511
|
350
|
12-¢22
|
390
|
|
300
|
●
|
●
|
●
|
600
|
25.43
|
2543
|
500
|
565
|
400
|
12-¢22
|
440
|
|
350
|
●
|
●
|
●
|
750
|
34.62
|
3462
|
620
|
460
|
16-¢22
|
500
|
|
400
|
●
|
●
|
●
|
900
|
45.22
|
4522
|
600
|
675
|
55
|
16-¢22
|
565
|
|
450
|
●
|
|
●
|
1200
|
57.23
|
5723
|
|
727
|
|
|
565
|
20-¢26
|
615
|
|
500
|
●
|
|
●
|
1500
|
70.65
|
7065
|
782
|
620
|
20-¢26
|
670
|
|
600
|
●
|
|
●
|
2500
|
101.74
|
10174
|
782
|
725
|
20-¢30
|
780
|
|
700
|
●
|
|
●
|
4000
|
138.47
|
13847
|
700
|
1068
|
840
|
24-¢30
|
895
|
|
800
|
●
|
|
●
|
5000
|
180.86
|
18086
|
800
|
1157
|
950
|
24-¢34
|
1010
|
|
900
|
●
|
|
●
|
6000
|
228.91
|
22891
|
900
|
1230
|
1050
|
28-¢34
|
1110
|
|
1000
|
●
|
|
●
|
8000
|
282.60
|
28260
|
1000
|
1332
|
1160
|
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