electro magnetic flowmeter - komachine€¦ · if the flowmeter sensor is installed in plastic or...
TRANSCRIPT
Flanged Combined TypeCN-100
Battery TypeCN-400
CNT-2
CNW-1 / CNW-2
Flanged Separate Type
Wafer Type
Contents
09 ~ 17
19 ~ 22
23 ~ 29
31 ~ 44
Appendix
45 ~ 47Easy Manual for Converter
Flange Dimension 49 ~ 53
ELECTRO-MAGNETIC FLOW METER
Principle of Operation 04
Grounding Method 05~07
Piping Installation 08
1-1. Principle of Operation
04
ELECTRO - MAGNETIC FLOW METER
The electromagnetic flowmeters are the ideal flowmeters for metering the flow of all liquids, slurries and sludges that
have a specific minimum electrical conductivity. These flowmeters measure accurately, create no additional pressure
drop, contain no moving or protruding parts, are wear free and corrosion resistant. Installations are possible in any
existing piping system.
The electromagnetic flowmeter has proven itself over many decades and is the preferred flowmeter in the Chemical,
Pharmaceutical and Cosmetic industries, Municipal Water and Waste Water treatment facilities and in the Food and
Paper industries.
E = Electrode Voltage
B = Magnetic Induction
D = Electrode Distance
V = Average Flow Velocity
qv = Volume Flowrate
The voltage induced in the fluid is measured by two electrodes located diametrically opposite to each other. This electrode voltage Ea is proportional to the magnetic induction B, the electrode distance D and the average flow velocity v. Nothing that the magnetic induction B and the electrode distance D are constant values indicates that a proportionality exists between the electrode voltage Ea and the average flow velocity v. From the equation for calculating the volume flowrate Ea~qv, it follows that the signal voltage is linear and proportional to the volumetric flowrate.
Figure 1. Basic operating principle of an Electromagnetic Flowmeter
1. Principle of Electromagnetic Flowmeter
1-2. Measurement PrincipleFaraday’s Laws of induction form the basis form the basis for the electromagnetic flowmeter which states that a
voltage is generated in a conductor as it moves through a magnetic field.
This principle is applied to a conductive fluid which flows through the meter tube perpendicular to the direction of
the magnetic field. (see the figure 1.)
qv = π D²4
v
Ea ~ B· D · v
·
Ea ~ qv
Metering Tube
Electrode Voltage
Electrode
Ea
ED
B
v
x
y
z
Magnet Coil
2-1. General information on ground connections
ELECTRO - MAGNETIC FLOW METER
2. Grounding
Observe the following items when grounding the device;
- The flowmeter grounding is one of the most important things for flowmeter installation.
- For plastic pipes or pipes with insulating lining, the grounding is provided by the grounding ring.
- When stray potentials are present, install a grounding ring upstream and downstream of the flowmeter sensor.
- For measurement-related reasons, the potential in the station ground and in the pipeline should be identical.
※ Important-Notice
If the flowmeter sensor is installed in plastic or earthenware pipelines, or in pipelines with an insulating lining, current may flow through the grounding electrode in special cases.
In the long term, it may destroy the sensor, since the ground electrode will turn in degrade electrochemically.In these special cases, the connection to the ground must be performed using grounding plates. Install a grounding ring upstream and downstream of the device in this case.
transient
2-2. Metal pipe with fixed flangesUse a copper wire (at least 2.5mm²) to establish the ground connection between the sensor, the pipeline flanges
and an appropriate grounding point.
Figure 2. : Metal pipe, without liner (over 50A sizes)
CN - 100
EarthGround
CNW-1
EarthGround
Flange Type Wafer Type
05
ELECTRO - MAGNETIC FLOW METER
Figure 3. : Metal pipe, without liner (from 10A to 40A sizes)
CN - 100
EarthGround
EarthGround
CNW-1
2-3. Plastic pipes, non-metallic pipes or pipes with insulating linerFor plastic pipes or pipes with insulating lining, the ground for the measuring agent is provided by the grounding ring.
If grounding electrodes are used, the grounding ring is not necessary.
a) Install the flowmeter sensor with grounding ring in the pipeline.
b) Connect the terminal lug for the grounding ring and grounding connection on the flowmeter sensor with the grounding strap.
c) Use a copper wire (min. 2.5mm²) to link the ground connection to a suitable grounding point.
※ It is essential to use this grounding method in an electrolysis process at a plating factory.
Figure 4. : Plastic pipes, non-metallic pipes or pipes with insulating liner
CN - 100
Grounding Rings
Grounding Rings
EarthGround
CNW-1
EarthGround
Grounding Rings
Grounding Rings
Flange Type Wafer Type
Flange Type Wafer Type
06
2-3. Ground for pipes with flexible connectionFor pipes with flexible connection, it should be welded M16 or 1/4 sized bolts on both sides of the pipes as shown
the figure 5 to get proper ground results.
Make sure to use a copper wire (min. 2.5mm²) to link the ground connection to a suitable grounding point.
ELECTRO - MAGNETIC FLOW METER
Figure 5. : Ground for pipes with flexible connection
CN - 100
CNW-1
EarthGround
flexible connectionM16 or 14 bolt weldedon pipe for grounding
flexible connection
M16 or 14 bolt weldedon pipe for grounding
EarthGround
Flange Type
Wafer Type
07
ELECTRO - MAGNETIC FLOW METER
3-2. Required Pipe Length on Piping ConnectionsIf various joints are used upstream of the detector outlet, the straight pipe length as show in figure below is required.
The figure above required straight pipe length on the upstream side
It follows the regulations of JIS B 7554 and KS B 0612 standards for the straight-pipe length installation conditions of
electromagnetic flowmeter.
3. Piping Installation
3-1. Upstream Downstream Piping Installation Methods (Standard)To ensure specific accuracy over widely varying process conditions, install the flowtube with a minimum of five straight upstream and two pipe diameters downstream from the electrode plane, as shown below. This flowtube placement is usually adequate to allow for disturbances created by elbows, valves and reducers.
Upstream and Downstream Straight Pipe Diameter
※ NOTE : It can be measured a correct flowrate only when a detector is full with fluid inside completely.
Make sure to operate it with fluid in full inside.
ValveValve
CN-100
2 Pipe Diameters5 Pipe Diameters
Flow
CN-100
CN-100
CN-100
CN-100
CN-100
L
By Pass Line
"T" Bow Line
90℃ Band Line
Horizental Straight Line
Reduction & Extension Line
L
L
L
L = 5D
L = 5D
L = 10D
L = 5D : Fully opened sluice valveL = 10D : Other valves (not fully opened)
※ Note
L : Required straight pipe length-straight pipe length plus half length of the detector.
D : Normal bore size (diameter)
L
L = 5D
08
1. SummaryThe Electromagnetic Flowmeter can be used to accurately measure the flowrate of liquids, paper pulp, slurry and
mineral slurry which has an electrical conductivity greater than 20㎲/cm, CN-100 is a flow measurement system in
a compact design which integrates the primary and signal converter.
MODEL
TYPE
CN-100
COMBINED TYPE
Normal Type EX-Proof Type
Combined Type (CN-100)
Converter
Body
Power Supply
I / O
Assembly Way
Option
10
ELECTRO - MAGNETIC FLOW METER
CN-100
2. Specifications
MODEL
Type
Size
Process connection
Measuring range
Accuracy
Fluid temperature
Conductivity
Power consumption
Display
Output
Protection class
Special feature
CN-100
Combined Type
10mm (3/8") ~ 1,000mm (39")
Flange type-standard KS/JIS10K RF(Option: ANSI, DIN)
0.2m/s-10m/s
±0.5% F.S. (15A~800A)±1.0% F.S.(900A ~ : It needs for site calibration)
Teflon (-10℃~160℃)Hard rubber (0℃~60℃)
-10℃~60℃
≥10㎲/cm (Option: 5~10≥ ㎲/cm)
AC 85-250V (50~60Hz)DC 24V, Surge Arrester
Max 15VA
LCD DisplayFlowrate: 5-digit DisplayTotal: 9-digit DisplayWith Back light
Analog: 4-20mA (isolated)Pulse: Open Collector Digital: RS485
IP66
Ex-proof: KC, IECEx (Option) - ExdⅡC T5 (IP66)
① Self check② Empty pipe③ Enable to reverse flow direction④ Data logging⑤ Error message
Ambient temperature
Power supply
3. Standard Material
DescriptionNo.Material
10A ~ 1,000A
①
②
③
④
⑤
Head
Body
Flange
Liner
Electrode
Cast Aluminum
SUS304
SUS304 / Carbon Steel
Teflon (PTFE) / Hard Rubber
Hastelloy-C
Option : Platinum Titanium Tantalum
①
②
③
④
⑤
FC KOREA Co., LTD. Address: #173-409, Gajwa-Dong, Seo-Gu, Incheon, Korea 404-811Tel : +82-32-876-7339 / Fax : +82-32-876-7377 http://www.fckoreains.com
11
4. Measuring RangeIn the normal industry application, it is better to set the measured medium speed as 2~4m/s, under the special
situation, the minimum speed should be more than 0.2m/s and maximum speed less than 8m/s, if there are solid
granules in liquid, the usual speed should be less than 3m/s for purpose to avoid the over-attrition between lining
and electrical poles. For viscid liquid, the speed can choose as 2m/s, the fast flow speed makes for the automatic
elimination of obstructive substances glued on poles, therefore improve the inspection’
Size
0.080.190.340.530.871.362.123.585.438.4813.2519.0833.9152.9976.30103.86135.65171.68211.95305.21415.42542.59686.72847.801220.831661.692170.372746.873391.20
2.826.3511.2917.6428.9145.7170.58119.28180.68282.32441.12636.211129.271764.482540.863458.394517.085716.937057.9410163.4313833.5518068.3122867.7128231.7440653.7155334.2172273.2591470.84112926.96
10A15A20A25A32A40A50A65A80A100A125A150A200A250A300A350A400A450A500A600A700A800A900A1000A1200A1400A1600A1800A2000A
0.2 10.0
Flow range
Minimum Maximum
Velocity(m/s)
Velocity(m/s)
Flow rate3(m /h)
Flow rate3(m /h)
Graph Illustration of Diameter, Flow Speed and Volume of Flowmeter
s preciseness.
(mm)
Flow volume ( )3m /h
Flo
w v
eloci
ty (
)m
/s
0.1
0.3
1.0
10
-210 -110 1 110 210 310 410
15 25 50 80 150200
250
300
6540
10032
mm450
400
350
12
ELECTRO - MAGNETIC FLOW METER
[ KS / JIS10K ]
L (mm)
5. CN-100 External Dimension For Integration
WorkingPressure
(Bar)D (mm) K (mm) n–ØA
Integration
Weight(Kg)
40
16
10
6
200
200
200
200
200
200
200
200
200
250
250
300
350
400
500
500
600
600
600
600
700
800
900
1000
90
95
100
125
135
140
155
175
185
210
250
280
330
400
445
490
560
620
675
745
905
1020
1120
1235
65
70
75
90
100
105
120
140
150
175
210
240
290
355
400
445
510
565
620
730
840
950
1050
1160
6
7
7
8
8
9
10
11
13
17
20
30
41
58
70
82
106
116
130
185
230
300
380
480
4-Ø15
4-Ø15
4-Ø15
4-Ø19
4-Ø19
4-Ø19
4-Ø19
8-Ø19
8-Ø19
8-Ø19
8-Ø23
8-Ø23
12-Ø23
12-Ø25
12-Ø25
16-Ø25
16-Ø27
20-Ø27
20-Ø27
24-Ø33
24-Ø33
24-Ø33
28-Ø33
20-Ø39
Integration installation type
10
15
20
25
32
40
50
65
80
100
125
150
200
250
300
350
400
450
500
600
700
800
900
1000
FC KOREA Co., LTD. Address: #173-409, Gajwa-Dong, Seo-Gu, Incheon, Korea 404-811Tel : +82-32-876-7339 / Fax : +82-32-876-7377 http://www.fckoreains.com
Size (mm)
13
ELECTRO - MAGNETIC FLOW METER
H (mm)
300
300
310
310
320
330
350
360
380
400
440
460
510
570
630
680
730
780
850
950
1080
1170
1210
1320
K
D
n-ØA
CN-100
L
H
※ H(mm) : Allowance ±10mm
6. Ordering Code
CN-100
123456789101112131415161718192021222324252627
COMBINED TYPE
MODEL SPECIFICATION DESCRIPTION
ABCDEFGH
CONNECTION FLANGE STANDARD
ABCDEF
ELECTRODE MATERIAL
ABCDEFN
GROUND RING MATERIAL
LINER MATERIAL
ABC
10A (3/8")15A (1/2")20A (3/4")25A (1")32A (1-1/4")40A (1-1/2")50A (2")65A (2-1/2")80A (3")100A (4")125A (5")150A 200A 250A 300A 350A 400A 450A 500A 550A 600A 650A700A750A800A900A1000A
(6")(8")(10")(12")(14")(16")(18")(20")(22")(24")
JIS 10KJIS 16KJIS 20KANSI 150#ANSI 300#
DIN PN16Other
DIN PN10
316LSSTi (titanium)Pt-Ir (platinum iridium)Ta (tantalum)Hastelloy COther
316SS316LSSTi (titanium)Ta (tantalum)
Hastelloy CNone
Pt-Ir (platinum iridium)
PTFEHARD RUBBEROther
METER SIZE
[Example]
CN 100 7 A E A AModel
14
ELECTRO - MAGNETIC FLOW METER
7. Dimension Size
110
130
140
200
110
7-1. Normal Combined Type
7-2. Ex-Proof Combined Type
FC KOREA Co., LTD. Address: #173-409, Gajwa-Dong, Seo-Gu, Incheon, Korea 404-811Tel : +82-32-876-7339 / Fax : +82-32-876-7377 http://www.fckoreains.com
CN-100
110
150
CN-100
237
140
110
15
ELECTRO - MAGNETIC FLOW METER
Electric Connection: M20x1.5(Female)
Electric Connection: PF (Female)2"
8. Wiring
COMM
COMM
POUT
ALM1
ALM2
IOUT
TRX+
TRX-
IVIN
LN-
LN+
Description for PCB connection functions
Frequency Pulse and
Current and Alarm Com
Frequency (Pulse) Output for Bi-directional Flow
Alarm Output for Upper Limit
Alarm Output for Low Limit
Current Output of Flux (Two Routes Out) Isolated
+ Communication Signal Input
- Communication Signal Input
External DC Power 24V
Power Supply
Power Supply
Grounding
COMM
POUT
A LM1
COMM
A L M 2
I O U T
T R X -
TRX+
I V I N
1) Power : AC 85V ~ AC250V (50~60Hz)
2) Grounding
Functionpart
Powerpart
Fuse
8-1. Wiring Connection on Converter
※ Note: Wires’colors are not required.
16
It needs to be inquired question separately for vessel using purpose.
ELECTRO - MAGNETIC FLOW METER
8-2. Controller Wiring Diagram
8-3. Controller Wiring Connection Function
1) Power : AC 85V ~ AC250V (50~60Hz)
2) Analog Output : DC 4~20mA (Isolated)
3) Pulse Output : Open Collector Pulses
4) Alarm Output : HI & LOW Alarm Output
5) Network Function : RS-485
6) Grounding
7) Surge Arrester
Counter
Hi-Alarm
Low-Alarm
Indicator
PLC
Indicator
Alarm Output Connection
Frequency Pulse Output Connection
Analog Output ConnectionDC 4~20mA (Isolated)
Communication ConnectionRS-485
DC24V(Pulse+)
Pulse IN-
COMM
POUT
A LM1
COMM
I O U T
T R X -
TRX+
I V I N
A L M 2
FC KOREA Co., LTD. Address: #173-409, Gajwa-Dong, Seo-Gu, Incheon, Korea 404-811Tel : +82-32-876-7339 / Fax : +82-32-876-7377 http://www.fckoreains.com
Analog Output ConnectionDC 4~20mA (2 Wires)
Power supplyDC 24V
17
ELECTRO - MAGNETIC FLOW METER