FineTek EPD30 Technical manual

EPD30 Electromagnetic
Flow Meter
Operation Instruction
FineTek Co., Ltd.
No.16, Tzuchiang St., Tucheng Industrial Park, New Taipei City 23678
Tel: [phone] Fax: [phone]
Website: http://www.fine-tek.com E-mail:[e-mail]
08EPD30-B6-EK,07/01/2020

Contents
1. Reading Labels......................................................................................................1
2. Product Warranty...................................................................................................2
2.1 New Product Warranty..............................................................................................................2
2.2 Repair Warranty .......................................................................................................................... 2
2.3 Service Network ..........................................................................................................................3
3. Product Inspection ................................................................................................4
3.1 Check Content............................................................................................................................. 4
3.2 Safety Inspection.........................................................................................................................4
4. Summary………………………………………………………………………………….4
5. Product Features...................................................................................................5
6. Applicable Scope...................................................................................................5
7. Environmental Condition......................................................................................5
8. Working Principles ................................................................................................6
9. Technical Performance .........................................................................................7
9.1 Execution Standards.................................................................................................................. 7
9.2 Basic Parameters and Performance Indicators.................................................................7
9.2.2 Recommended Flow Range for Tube Diameters..............................................8
9.2.3 Lining Material...................................................................................................8
9.2.4 Electrode Material.............................................................................................9
9.2.5 Housing Protection Rating(IP)...........................................................................9
10. Appearance and Dimension..............................................................................10
10.1 Flange Type..............................................................................................................................10
10.1.1 JIS 10K & 20K................................................................................................10
10.2 ANSI 150Lbs & 300Lbs.........................................................................................................12
10.3 DIN PN40 & PN16 & PN10..................................................................................................13
11. Installation…………………………………………………………………………...…14
11.1 Conditions required to guarantee the measurement accuracy of the
electromagnetic flow meter:................................................................................................14
11.2 Safety Measures..................................................................................................................... 14
11.3 Inspection before Installation..............................................................................................14
11.4 Handling..................................................................................................................................... 15
11.5 Correct Installation .................................................................................................................15
11.6 Notes for Installation on the Pipe.......................................................................................17
11.7 Grounding Requirements.....................................................................................................18
11.8 Changing the Direction of the Transmitter Box..............................................................18

12. Wiring and Using ...............................................................................................19
12.1 Wiring.........................................................................................................................................19
12.1.1 Notes for Wiring ............................................................................................19
12.1.2 Open the external cover on the rear side, you will see the wiring terminal as
shown below. ............................................................................................19
13. Inspection before Power-On.............................................................................20
14. Parameter Functions.........................................................................................21
14.1 Procedure for Menu Setting.................................................................................................21
14.1.1Functions of the Display Interface...................................................................21
14.1.2 Button Functions in Parameter Setting Status:...............................................21
14.2 Various Parameter Setting Ranges...................................................................................22
14.3 System record illustration.....................................................................................................25
15. Ordering Information.........................................................................................27
16. Transportation and Storage..............................................................................29
17. Fault Inspection and Repair..............................................................................30
18. MODBUS Communication Protocol .................................................................31

1
1. Reading Labels
Thanks for purchasing FineTek’s Product. This operation manual describes the product
features, working principles, operation and maintenance methods. It makes the user fully
understand how to use the product correctly, so as to prevent dangerous situations such as
device damage or operator injury.
Please read this operation manual completely and carefully before using the product.
Please contact the company if this operation manual can’t satisfy your demands.
The content of the operation manual is updated based on the version upgrade, which will
be uploaded to the website for the user to access.
Please don’t disassemble or repair the product on your own, as this will make you
disqualified from availing of the warranty service. Please send the product back to the
company for repair and calibration, or just contact the company.
Explanation of warning signs:
Danger→It indicates that wrong operation will cause death or major disasters.
Note→It indicates that wrong operation will cause injury and device damage to some
extent.
Electric shock→It warns of possible electric shock.
Fire→It warns of possible fire.
Prohibited→It indicates the prohibited wrong behavior.

2
2. Product Warranty
2.1 New Product Warranty
We don’t charge for the inspection, part/s and repair for the product of the company
that has a defect within 12 months from the delivery date and meets the warranty
terms.
If the product defect is not due to human error during its transportation, user may
change to a new unit from the company within 7 days from delivery date.
When the product needs to be sent back to the factory for repair, please send the
whole set, and don’t disassemble the parts. Moreover, please be sure it is completely
packed to avoid damage and causing more loss and defect during the transportation.
The warranty is not available for causes that fall under the following circumstances,
for which the company shall charge for the inspection, part/s and repair according to
the actual condition:
The product or its parts are beyond the warranty period.
Fault or damage is caused by not following the instruction and use environment
described on the operation manual.
The product damage is caused by aforce majeure factor (natural disasters, floods,
fire, earthquakes, lightning, typhoon, etc.), human destruction (scratches,
dropping, latch broken, tapping, cracks and punching), human error (using
improper voltage, high-humidity, water leakage, stain, corrosion, loss, improper
storage, etc.) and other abnormal factors.
The damage is caused by the customer or the 3rd party through the installation,
addition, expansion, modification and repair of parts not authorized or certified by
the company.
The volume label information is wrong or unclear, so the product serial number
can’t be confirmed.
2.2 Repair Warranty
A 6-month warranty service is provided for the repaired part of the product, during which the
same product can be repaired free of charge in case of the same fault.

3
2.3 Service Network
Company
Address
Telephon
Fax
Taipei Headquarters
(Taiwan)
No.16, Tzuchiang St., Tucheng
Industrial Park, New Taipei City
23678
[phone]
[phone]
Taichung
Sales office
(Taiwan)
[phone]
[phone]
Kaohsiung
Sales office
(Taiwan)
[phone]
[phone]
Fine automation
Co., Ltd.
(China)
No. 451, Duhui Road,
Zhuanqiao Township, Minhang
District, Shanghai City 201109
[phone]
[phone]
Aplus FineTek
Sensor Inc.
355 S. Lemon Ave, Suite D,
Walnut, CA 91789
1 909 598-2488
1 909 598-3188
FineTek Pte Ltd.
(Singapore Branch)
37 Kaki Bukit Place, Level 4
Singapore 416215
[phone]
[phone]
FineTek GmbH
(Germany Branch)
Bei den Kämpen 26
21220 Seevetal-Ramelsloh,
Germany
[phone]
[phone]
FineTek Co., Ltd.
(Indonesia Branch)
PERGUDANGAN TUNAS
BITUNG
JL. Raya Serang KM. 13,8,
Blok C3 No. 12&15, Bitung
Cikupa,
Tangerang 15710
[phone]
[phone]

4
3. Product Inspection
3.1 Check Content
1 flow meter
1 operation manual
1 product inspection sheet
1 grounding ring set (2 rings) (Optional)
3.2 Safety Inspection
Please check whether the external package is deformed or damaged. Please
remember to take a picture for evidence for compensation later.
After unpacking, please check whether the content is deformed or damaged, or has
any quality problem. Please remember to take a picture for evidence for
compensation later.
After unpacking, please check whether the content is consistent with the ordering
info, and whether the quantity is right.
Please contact the company within 7 days if any of the above situations occur (attach
the picture together with your complaint). Otherwise, we won’t compensate for,
change or repair the product defect.
4. Summary
The company’s electromagnetic flow meter adopts coil excitation, which is more stable than
the traditional magnetism generation. After strict vibration and anti-noise test, it can work
stably and is highly tolerant of complex environments in the industrial field, which also has a
longer life span in practical application.
The electromagnetic flow meter has kept on evolving since its initial development, which is
widely applied in monitoring various industrial fluid pipes, including power generation, water
treatment, food, medication, shipping, dyeing & finishing, and semi-conductor process
industries. With its simple working principle, the electromagnetic flow meter is widely
applicable in various environments as long as the correct model is selected to match the fluid
properties.

5
5. Product Features
The measurement results is not affected by the change of liquid density, viscosity,
temperature, pressure and conductivity.
There are only two measurement points in the measuring tube without baffle and
movable parts, so it won’t cause pressure loss and jam.
It can test the flow for the conducting fluid and the fluidic containing some solid granules.
The straight tube section required for the installation just needs the upstream front 5D
and downstream 2D of the flow meter without complicated pipeline design.
The measurement turndown ratio can reach 1:100, which can achieve high accuracy
especially for measuring small flow.
It has a self-diagnosis function, which can automatically detect the excited signal,
whether the measuring tube is empty and whether the electrode is stained or damaged.
The lining can be common NBR(Nitrile), high-temperature or acid-proof & alkali-proof
PTFE(Teflon)
The maximum fluidic temperature permitted can reach 120℃(Teflon)
The flow converter setting is simple, with powerful functionality.
6. Applicable Scope
Conductivity: > 5μS/cm
Fluid properties: Pure liquid and fluidic containing some solid granules.
Application industries: Power generation, water treatment, food, medication, shipping,
dying & finishing, and semi-conductor process
7. Environmental Condition
Ambient environment: -40℃~ 70℃
Relative humidity: 5% ~ 95% of RH, without condensing water
Atmospheric pressure: 86 ~ 106 KPa
Power supply: 100~240Vac 50/60Hz or DC24V

6
Converter
v
8. Working Principles
The working principle of the electromagnetic unit is based on the Faraday law of
electromagnetic induction. When the conductor moves in the magnetic field, it will
generate induced EMF on both sides of the conductor in the orthogonal direction of
the magnetic field direction and the motion direction. The EMF is directly proportional
to the motion speed of the conductor and the magnetic induction intensity.
As shown in <Figure 1>, the conducting fluidic passes through the insulating tube with
the internal diameter of D(m) at the average flowing speed V(m/s) that is equipped
with a pair of measuring electrodes. Moreover, the tube is in a magnetic field with
uniform magnetic induction intensity of B (T). In this case, the electrodes will induce
the EMF (E) at the orthogonal direction of the magnetic field and the flowing direction.
According to the law of electromagnetic induction, E can be written as Equation (1):
Wherein, k is the proportional coefficient.
The volume flow can be written as
From Equation (1) and (2), we can get:
Thus, EMF can be represented as:
When B is a constant in Equation(3)
Equation(3) can be modified as:
It can be concluded that the flow qv is directly
proportional to the EMF E.
<Figure 1>

7
9. Technical Performance
9.1 Execution Standards
IEC 60068-2-3 EN 61326-1:2013
IEC 61326-1 EN 55011:2009/A/:2010
IEC 60092-504 ISO 4064-1
JIS B2220 JIS B7554-1997
ANSI B16.5 DIN 25 Series
9.2 Basic Parameters and Performance Indicators
9.2.1 Technical Specification Table
Item
EPD30
Display
LCM 128* 64 pixel backlit type
Buttons
Tri-button operation
Communication interface
RS-485 (Modbus) (Optional support for ZigBee Pro wireless transmission)
Accuracy
±0.5% of reading@1m/s(0.2% optional)
Medium temperature
-20~120℃
Ambien temperature
-40~70℃1
Fluidic conductivity
>5uS/cm
Measuring scope
0.1m/s~10m/s
Current output accuracy
0.1% of Pulse Output Accuracy
Temperature coefficient (100ppm/℃)
Operating pressure
10 kg/cm3
Current output mode
Proactive
Analog output
4~20mA
Maximum load of current output
<700Ω
Alarming current
3.6mA or 22mA
Frequency output scope
2~8KHz
Pulse width
Automatic (pulse width 50%)
Pulse mode
NPN transistor output 32vdc/200mA
Time constant
1~100s
Control output (DO)
NPN transistor output 32vdc/200mA;1-CH
Control input (DI)
Dry contact ON< 200Ω ;
1,000Ω< OFF ; 1-CH
Baud rate
1200~57600 bps
Protection rating
IP67/NEMA 4X
Enclosure material
Aluminum alloy
Input power
AC100~240V or DC24V
Power consumption
<10 W
Wire inlet specification
M20 x1.5*2
Excitation mode
Pulse DC
Vibration regulation
IEC 60068-2-3
EMC regulation
IEC/EN 61326-1 Class A table 2
1 It can’t display when LCM is lower than -20℃.

8
9.2.2 Recommended Flow Range for Tube Diameters
Pipe diameter (mm)
Flow range (m3/h)
Flowing speed 0.1~1.0m/s
Flowing speed 1.0~10m/s
40
0.45~4.5
4.5~45.2
50
0.71~7.1
7.1~71
65
1.19~11.9
11.9~119
80
1.81~18.1
18.1~181
100
2.83~28.3
28.3~283
125
4.42~44.2
44.2~442
150
6.36~63.6
63.6~636
200
11.3~113
113~1130
250
17.7~177
177~1770
300
25.4~254
254~2540
9.2.3 Lining Material
Lining material
Main properties
Application scope
PTFE
1. Stable chemical properties, resistance to
various acid, alkane, and salt solutions
and various organic solvents. It is not
tolerant to the corrosion of CIF3, high-
temperature OF3 and high-speed liquid
oxygen and ozone.
2. The anti-abrasion property is average.
1. -20~120℃
2. Strong corrosive medium such
as concentrated acid and
alkane.
NBR
1. Excellent flexibility, highly tearing force
capability, good wear resistance
2. It is resistant to low concentrations of
acid, alkali, salt solution;It is not tolerant
the corrosion of oxidizing mediums.
1. < 80℃
2. Neutral-strong wearing mineral
pulp, coal slurry and mud slurry
Neoprene
1. Neutral wearing capability
2. It is resistant to low concentrations of
acid, alkali, acid corrosion.
1. < 80℃
2. Water, Industrial water ,
Seawater

9
9.2.4 Electrode Material
Electrode material
Anti-corrosion property
Stainless steel (316L)
It is applied in water, sewage and organic corrosive medium.
Hastelloy alloy
It is resistant to the corrosion of the medium mixture of
oxidizing acid such as Nitric acid, mixed acid or Sulfuric acid.
Moreover, it is resistant to the corrosion of the oxidizing salt
such as Fe2+、Cu2+ or other substances containing oxidants
such as the salt solution of hypochlorous acid above the
ambient temperature and sea water.
Titanium
It is resistant to the corrosion of sea water, various oxides,
salt solution of hypochlorous acid, oxidating acid (including
fuming Nitric acid) and organic acid and alkane. It is not
resistant to the corrosion of pure reducing acid (such as
Sulfuric acid and Hydrochloric acid). However, the anti-
corrosion property will be greatly degraded if the acid contains
some oxidants.
Tantalum
It has excellent corrosion resistance. Its characteristic is
similar to glass. In addition to hydrofluoric acid , nitric acid ,
alkali, it could resist almost all chemical medium (including
boiling hydrochloric acid, nitric acid and sulfuric acid below
175’C). It could not resist corrosion in alkali.
9.2.5 Housing Protection Rating(IP)
IP67

10
10. Appearance and Dimension
Flange Type
10.1 JIS 10K & 20K
Connection specification
JIS 10K
Nominal diameter(mm)
40
50
65
80
100
125
150
200
250
300
Lining material
PTFE
Length
L
200
200
200
200
250
250
300
350
400
500
External diameter
ϕD
140
155
175
185
210
250
280
330
400
445
PCD
ϕC
150
120
140
150
175
210
240
290
355
400
Flange thickness
t
14
14
16
16
16
20
22
22
24
24
Inclined angle of screw
hole
θ°
45
45
45
22.5
22.5
22.5
22.5
15
15
11.25
Diameter of screw hole
θh
19
19
19
19
19
19
23
23
25
25
Quantity of screw
holes
N
4
4
4
8
8
8
8
12
12
16
Height of sensor
casing
H1
125
125
145
145
195
195
270
305
365
406
Total height
H2
315
322
342
347
384.5
404.5
467
506
572
616
Weight (kg)
-
6.8
7.68
8.98
9.87
12.9
17.5
23.51
33.23
54.03
69.55
Connection specification
JIS 20K
Nominal diameter(mm)
40
50
65
80
100
125
150
200
250
300
Lining material
PTFE
Length
L
200
200
200
200
250
250
300
350
400
500
External diameter
ϕD
140
155
175
200
225
270
305
350
430
480
PCD
ϕC
105
120
140
160
185
225
260
305
380
430
Flange thickness
t
18
18
20
22
24
26
28
30
34
36
Inclined angle of
screw hole
θ°
45
22.5
22.5
22.5
22.5
22.5
15
15
15
11.25
Diameter of screw
hole
θh
19
19
23
23
23
25
25
25
27
27
Quantity of screw
holes
N
4
8
8
8
8
8
12
8
12
16
Height of sensor
casing
H1
125
125
145
195
195
195
270
305
365
406
Total height
H2
314.5
322
342
354.8
392
414.5
478
514
585
632
Weight (kg)
-
7.08
7.72
8.98
16.42
16.42
23.56
31.03
43.37
74.23
94.15
Remarks: For DN40~DN80, the lining protective ring is 2mm, so the total length of the flow meter shall be
increased by L+4mm. For DN100~DN300, the lining protective ring is 0.5mm, so the total length of the flow
meter shall be increased by L+1mm; total length (L) tolerance is ±3mm, total height (H2) tolerance is ±5mm

11
Connection
specification
JIS 7.50K
Nominal diameter(mm)
50
80
100
125
150
200
250
300
Lining material
PTFE
Length
L
200
200
250
250
300
350
400
500
External diameter
ϕD
155
211
238
263
290
342
410
464
PCD
ϕC
120
168
185
225
247
299
360
414
Flange thickness
t
18
21
24
26
23
24
26
28
Inclined angle of screw
hole
θ°
45
45
45
30
30
22.5
22.5
18
Diameter of screw hole
θh
19
19
19
19
19
19
23
23
Quantity of screw holes
N
4
4
4
6
6
8
8
10
Height of sensor casing
H1
125
145
195
195
270
305
365
406
Total height
H2
322
360
399
411
472
511
577
625
Weight (kg)
-
7.65
12.45
15.82
19.55
25.63
36.82
55.63
74.95
Remarks: For DN40~DN80, the lining protective ring is 2mm, so the total length of the flow meter shall be
increased by L+4mm. For DN100~DN300, the lining protective ring is 0.5mm, so the total length of the flow
meter shall be increased by L+1mm; total length (L) tolerance is ±3mm, total height (H2) tolerance is ±5mm

12
10.2 ANSI 150Lbs & 300Lbs
Connection
specification
ANSI 150Lbs
Nominal diameter(mm)
40
50
65
80
100
125
150
200
250
300
Lining material
PTFE
Length
L
200
200
200
200
250
250
300
350
400
500
External
diameter
ϕD
127
152
178
190
229
254
279.4
342.9
406.4
482.6
PCD
ϕC
98.4
120.6
139.7
152.4
190.5
215.9
241.3
298.4
361.9
431.8
Flange
thickness
t
15.9
17.4
20.6
22.2
22.2
22.2
23.8
27
28.6
30.2
Inclined angle of
screw hole
θ°
45
45
45
45
22.5
22.5
22.5
22.5
15
15
Diameter of
screw hole
θh
15.9
19
19
19
19
22.2
22.2
22.2
25.4
25.4
Quantity of
screw holes
N
4
4
4
4
8
8
8
8
12
12
Height of sensor
casing
H1
125
125
145
145
195
195
265
305
365
406
Total height
H2
308
321
344
350
394
407
464
511
575
633
Weight (kg)
-
4.93
6.77
9.23
10.7
16.27
19.41
25.48
42.62
65.68
98
Connection
specification
ANSI 300Lbs
Nominal
diameter(mm)
40
50
65
80
100
125
150
200
250
300
Lining material
PTFE
Length
L
200
200
200
200
250
250
300
350
400
500
External
diameter
ϕD
156
165
190
210
254
279
317.5
381
444.5
520.7
PCD
ϕC
114.3
127
149.2
168.3
200
235
269.9
330.2
387.35
450.85
Flange
thickness
t
19
20.6
23.8
27
30.2
33.3
34.9
39.7
46
49.2
Inclined angle
of screw hole
θ°
45
22.5
22.5
22.5
22.5
22.5
15
15
11.3
11.3
Diameter of
screw hole
θh
22.2
19
22.2
22.2
22.2
22.2
22.2
25.4
28.6
31.8
Quantity of
screw holes
N
4
8
8
8
8
8
12
12
16
16
Height of
sensor casing
H1
125
125
145
145
195
195
265
305
365
406
Total height
H2
323
327
350
360
407
419
481
528
592
650
Weight (kg)
-
9.08
10.32
12.78
16.45
26.62
32.96
42.28
67.62
98.88
145
Remarks: For DN40~DN80, the lining protective ring is 2mm, so the total length of the flow meter shall be
increased by L+4mm. For DN100~DN300, the lining protective ring is 0.5mm, so the total length of the flow
meter shall be increased by L+1mm; total length (L) tolerance is ±3mm, total height (H2) tolerance is ±5mm

13
10.3 DIN PN40 & PN16 & PN10
Connection
specification
DIN PN40
DIN PN16
Nominal diameter(mm)
40
50
65
80
65
80
100
125
150
200
Lining material
PTFE
Length
L
200
200
200
200
200
200
250
250
300
350
External
diameter
ϕD
150
165
185
200
185
200
220
250
285
340
PCD
ϕC
110
125
145
160
145
160
180
210
240
295
Flange
thickness
t
18
20
22
24
18
20
20
22
22
24
Inclined angle of
screw hole
θ°
45
45
22.5
22.5
45
22.5
22.5
22.5
22.5
15.0
Diameter of
screw hole
θh
18
18
18
18
18
18
18
18
22
22
Quantity of
screw holes
N
4
4
8
8
4
8
8
8
8
12
Height of sensor
casing
H1
125
125
145
145
145
145
195
195
265
305
Total height
H2
320
327
347
355
347
355
390
405
470
510
Weight (kg)
-
7.08
7.72
8.98
12.25
8.58
11.65
15.62
20.96
28.23
39.97
Remarks: For DN40~DN80, the lining protective ring is 2mm, so the total length of the flow meter shall be
increased by L+4mm. For DN100~DN300, the lining protective ring is 0.5mm, so the total length of the flow
meter shall be increased by L+1mm; total length (L) tolerance is ±3mm, total height (H2) tolerance is ±5mm

14
11. Installation
The design, test and power supply for the flow meter are based on the related regulations.
User must strictly follow the instructions to guarantee the safe operation and normal working
of the flow meter.
11.1 Conditions required to guarantee the measurement accuracy of the electromagnetic
flow meter:
The test liquid is conducting.
The measuring pipe must be filled with liquid.
The test liquid must be uniform, so as to prevent the non-uniform conductivity (which
will result in serious interference). If you need to add some chemicals dynamically, it
should be added in the downstream of the flow meter.
The electromagnetic flow meter must be well grounded. Especially in the plastic pipe,
the grounding ring must be installed in order to perform solid grounding.
The straight tube section is required to be at least 5D at the flow meter inlet (internal
diameter of the measuring pipe), and at least 2D at the flow meter outlet.
The flow meter should be kept away from strong EMI, and it should not be installed
near the large motors or transformers.
11.2 Safety Measures
To guarantee human and device safety, the instructions below must be followed:
Before selecting the location and installing the flow meter, the user should carefully
read the related parts in this manual, and consider the safety requirements for the
flow meter, related devices and machine body environment.
The flow meter installation and repair must be performed by the personnel with
some flow meter knowledge.
The flow meter sensors and pipes must be correctly installed, and the sealing must
be safe and reliable. The liquid pressure should not exceed the maximum working
pressure described on the flow meter specification.
Proper measures must be taken to prevent electrical shock accident.
The handling equipment of the flow meter should meet the safety requirements.
11.3 Inspection before Installation
Check whether the flange, lining, casing and outgoing line sleeve are damaged.
Open the box cover to check whether the wiring printed circuit is loosened or
damaged.
Check whether the model number on the nameplate is consistent with the order
information.

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11.4 Handling
The flow meter must be handled with the correct handling method. The safety load and
protection action of the handling equipment should meet the related regulations. The
transmitter box (for integrated flow meter) or enclosure (for separated flow meter) must
not be tied up to handle the flow meter.
11.5 Correct Installation
It is very important to select the installation site and install the flow meter correctly. If any
mistake is made during the installation, it will affect the measuring accuracy or the life
span of the flow meter, or even cause damage. When selecting the installation site,
please pay special attention to the following:
a. The axis of the measuring electrode must be approximate to the horizontal direction
(Generally, the angle from the level line is within 10°.)
b. The measuring pipe must be filled with liquid.
c. The flow meter must be equipped with the straight tube section in the length of at
least 5×D at the front side (D is the internal diameter of the flow meter), and the
straight tube section in the length of at least 2×D at the rear side (D is the internal
diameter of the flow meter).
d. The flowing direction of the fluidic is the same as the arrow direction on the flow meter.
e. Please prevent the vacuum in the pipe, which will damage the lining of the flow meter.
10°
10°
5D 2D

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f. The flow meter must be free from strong electromagnetic field. The magnetic
intensity
of the flow meter installation site must be smaller than 400A/m.
(It should not be installed near large motors or transformers)
g. There should be enough space left surrounding the flow meter for installation and
repair.
h. If the measuring pipe vibrates, a support frame should be set up on both sides of
the flow meter.
i. When measuring the mixture of different media, the distance between the mixing
point and the flow meter must be 30×D at least (D is the internal diameter of the
flow meter)).
j. For convenient cleaning and maintenance of the flow meter, a bypass pipe must be
installed.
k. When installing the flow meter of the PTFE lining, the bolt connecting two flanges
should be fastened evenly. Otherwise, it will damage the PTFE lining. Please use
the torque wrench as much as possible.
l. The flow meter should be protected from strong vibration and great temperature
change. In the meantime, damage of the corrosive liquid on the flow meter should
be prevented.
m. If the flow meter is installed at a position with direct sunlight, shielding facilities
should be set up.
n. When installing the sensor, the measuring pipe and the process pipe must be on
the same axial line. For the senor with the nominal diameter of DN50 or below, the
axial line deviation should not exceed 2mm. For those of DN65 DN150, the axial
line deviation should not exceed 3mm. For those of ≥DN200, the axial line deviation
should not exceed 4mm.
o. The shim installed between the flanges should have excellent anti-corrosion
property. The shim should not intrude in the pipe, which will block the flowing fluidic
p. Fasten the bolts and screws of the flow meter. The screw threads should be
undamaged with good lubrication condition. The bolts with torque wrench must be
fastened based on the flange size and torque.
q. When welding or flame-cutting the pipes near the sensor, isolation measure must
be conducted, so as to prevent the lining from heating. Moreover, the flow meter
must be powered off, or it will damage the flow meter.

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11.6 Notes for Installation on the Pipe
When installing the flow meter, one must follow the installation diagrams as shown
below. This will ensure the flow meter can guarantee the pipe is always filled with the
liquid: (The figures below are only typical cases, which don’t include all feasible
installation methods. The user may judge the installation position based on the actual
condition.)
排气阀
5m
No.
Diagram
Description
The sensor should be
installed at the pump outlet
rather than the inlet.
It should be installed at the
lower point and the vertically
upward point of the
horizontal pipe.
Don’t install it at the highest
point and the vertically
downward point of the pipe.
2
It should be installed at
the rising point of the
pipe.
If the pipe gap exceeds 5m,
the air release valve should
be installed at the
downstream of the sensor.
The downstream of the
sensor should have some
back pressure.
The control valve and cut
valve should be installed at
the downstream of the
sensor rather than the
upstream.
1
3
4
5