SUPMEA U-LWGY-SUP-EN2 User manual

User's Manual
U-LWGY-SUP-EN2
Turbine Flowmeter
Supmea Automation Co.,Ltd.
www.supmea.com
Headquarters
5th floor,Building 4,Singapore Hangzhou Science Technology Park,No. 6 street,
Hangzhou Economic Development Area,Hangzhou 310018,China
Singapore
2 Venture Drive #11-30 Vision Exchange Singapore
[email protected]

I
Preface
Thank you for purchasing our product.
This manual is about the various functions of the product, wiring methods,
setting methods, operating methods, troubleshooting methods, etc.
Please read this manual carefully before operation, use this product
correctly to avoid unnecessary losses due to incorrect operation.
After you finish reading, please keep it in a place where it can be easily
accessed at any time for reference during operation.
Note
Modification of this manual’s contents will not be notified as a result of
some factors, such as function upgrading.
We try our best to guarantee that the manual content is accurate, if you find
something wrong or incorrect, please contact us.
The content of this manual is strictly prohibited from reprinting or copying.
Version
U-LWGY-SUP-EN2

II
Confirm the contents of the package
Please confirm the product and accessories after unpacking. Once the product is
wrong, the quantity is wrong or there is a problem in appearance, please contact
our company.
Product List
Precautions
Users are expected to keep the "Product Qualification Certificate" properly and do
not lose it.
Serial number
Item Name
Quantity
1
Turbine Flowmeter
1
2
Manual
1
3
Certificate
1

III
Contents
Chapter 1 Overview...........................................................................................................1
Chapter 2 Working Principle............................................................................................ 2
Chapter 3 Main Technical Parameters...........................................................................3
Chapter 4 Structure And Installation...............................................................................4
4.1. structure..............................................................................................................4
4.2. Installation.......................................................................................................... 6
Chapter 5 Flow meter operation method..................................................................... 10
5.1. Turbine flow sensor........................................................................................10
5.2. Turbine flow meter with local display...........................................................11
5.3. Turbine flow meter without display.............................................................. 16
Chapter 6 Maintenance and overhaul.......................................................................... 18
6.1. Precautions when using................................................................................ 18
6.2. Possible failures of the flow meter and solutions...................................... 19
Chapter 7 Warranty & After-sales Service...................................................................20
Chapter 8 Communication..............................................................................................21
8.1. Standard basis................................................................................................ 21
8.2. Communication mode.................................................................................... 21
8.3. RTU transmission mode................................................................................ 21
8.4. Function code definition.................................................................................22
8.5. Example........................................................................................................... 23

Chapter 1 Overview
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1
Chapter 1 Overview
The LWGY turbine flow meter is connected to the converter through the flow
sensor, which can realize multiple functions such as pulse output, current output,
and local display. The flow meter has the characteristics of high accuracy, wide
measuring range, long life, simple operation and maintenance, etc. It can be
widely used in food, medicine, petrochemical, metallurgy, paper making and other
industries. It is an ideal instrument for flow measurement.
The flow meter is suitable for liquids that do not corrode stainless steel 304, 2Cr13,
corundum (Al2O3), cemented carbide, etc., and are free of impurities such as
fibers and particles.
If the user needs a special type of flow meter, it can be supplied by agreement.

Chapter 2 Working Principle
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Chapter 2 Working Principle
When the measured liquid flows through the flow meter sensor, its internal impeller
rotates with the help of liquid kinetic energy. At this time, the impeller blade causes
the magnetic resistance in the detection device to change periodically. Therefore,
an electric pulse signal proportional to the flow rate is induced at both ends of the
detection coil, and is amplified by the preamplifier then sent to the display unit. The
single chip microcomputer system in the display unit calculates according to the
number of pulses measured and the meter coefficient K of the flow meter, and
displays the instantaneous flow rate and the accumulated total amount.
The relationship between the meter coefficient and instantaneous flow, frequency,
pulse number, and cumulative total is:
K=f/Q and K=N/V
In the formula:
f—flow signal frequency (Hz)
Q—instantaneous flow rate (m3/s, or /L/s)
N—pulse number
V—Total volume (m3)
K—Meter coefficient(1/m3 or 1/L)

Chapter 5 Structure And Installation
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Chapter 3 Main Technical Parameters
Type
Main Technical Parameters
Measurement medium
Liquids (such as water, liquefied petroleum gas, finished
oil, light crude oil, organic liquids, inorganic liquids and
other liquids without fibre or particle impurities)
Nominal diameter
DN4mm ~ DN200mm
Accuracy
0.5%R, 1.0%R
Medium viscosity
It is less than 5×10-6m2/s. For liquids larger than
5×10-6m2/s, the meter should be calibrated in real liquid
and used according to the new meter coefficient.
Medium temperature
(-20~＋120)℃
Environmental
conditions
Ambient temperature：(-20~＋60)℃
Relative humidity：5%～90%
Atmospheric pressure
(86~106)kPa
Power supply
3.6V、12VDC、24VDC
Output signal
Pulse signal, (4~20)mA current signal, Modbus
communication
Ingress Protection
IP65

Chapter 4 Structure And Installation
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Chapter 4 Structure And Installation
4.1. structure
The flowmeter structure is divided into thread, flange and clamp connection
according to the different connection modes of the sensor part. The specific
structure is shown in Figure 1 to Figure 5.
Figure 1 LWGY-4~10G flow meter
structure and installation dimensions
Figure 2 LWGY-4 ~ 10G filter
Figure 3 LWGYDN15~DN100 flow meter
structure and installation dimensions
Figure 4 LWGY DN15~DN200 flow meter
structure and installation dimensions

Chapter 5 Structure And Installation
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According to the different output modes of the converter, it is divided into
battery-powered local display, 24V power supply without display, 24V power
supply local display, pulse output, etc. The specific structure and dimensions are
shown in Figure 6 to Figure 10, and the installation dimensions of the flow meter
are shown in Tables 1-2.
Figure 5 LWGY DN4~DN100 flow meter
structure and installation dimensions
Figure 6 Partial dimensions of
LWGY-2/34 converter (24V powered
local display)
Figure 7 Partial dimensions of LWGY-1
converter(Battery powered local display)

Chapter 4 Structure And Installation
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4.2. Installation
(1) The flow meter can be installed horizontally and vertically, and the fluid
direction must be upward when installed vertically. The liquid should fill the pipe
without air bubbles.
(2) During installation, the liquid flow direction should be consistent with the
direction of the arrow indicating the flow direction on the flowmeter housing. There
should be at least a straight pipe section of 10 times the diameter at the upstream
end, and a straight pipe section of no less than 5 times the diameter at the
downstream end.
(3) The flow meter should be far away from the external electromagnetic field. If it
cannot be avoided, the necessary shielding measures should be taken.
(4) In order not to affect the normal delivery of liquid during maintenance, a bypass
pipeline should be installed at the place where the flow meter is installed (Figure
10).
Figure 8 Partial dimensions of LWGY-0
converter(24V power supply without
display)
Figure 9 Partial dimensions of LWGY-i
type converter (24V pulse output)

Chapter 5 Structure And Installation
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Figure 10 installation diagram of flow meter
(5) When the flow meter is installed in the open air, please do the waterproof
treatment of the amplifier and plug.
Table 1 Basic parameters and installation dimensions of turbine flow meter
Diameter
(mm)
Flow Range(m3/h)
Maximum pressure (MPa)
Installation type
4
0.04～0.25
6.3
Thread
6
0.1～0.6
6.3
Thread
10
0.2～1.2
6.3
Thread
15
0.6～6 / 0.3～6
6.3
Thread
20
0.8~8
6.3
Thread
25
1～10 / 0.5～10
6.3
Thread
4.0
Flange
25
Clamp
32
1.5~15
6.3
Thread
4.0
Flange
40
2～20 / 1～20
6.3
Thread
4.0
Flange
25
Clamp
50
4～40 / 2～40
2.5
Live Flange
4.0
Flange
25
Clamp
65
8～80 / 4～80
4.0
Flange
80
10～100 / 5～100
2.5
Live Flange
4.0
Flange
25
Clamp

Chapter 4 Structure And Installation
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100
20～200 / 10～200
2.5
Live Flange
2.5
Flange
25
Clamp
150
30～300 / 15～300
2.5
Live Flange
2.5
Flange
5
Clamp
200
80～800 / 40～800
1.6
Flange
2.5
Clamp
Diameter
(mm)
L
(mm)
G
L′
(mm)
D
(mm)
K
(mm)
d
Holes
Φ
(mm)
Y
(mm)
f
(mm)
4
394
R3/8
194
6
430
R3/8
230
10
550
R3/8
350
15
75
G1
20
80
G1
25
100
G1
1/4
100
115
85
Φ14
4
Φ57
100
Φ50.8
Φ52.4
5
32
140
140
Φ100
Φ18
4
Φ65
4
40
140
G2
140
Φ150
Φ110
Φ18
4
Φ75
Φ76
3
50
Φ73
Φ76.4
5
50
150
Φ160
Φ125
Φ18
4
Φ71
Φ72
3
150
Φ165
Φ87
Φ88
3
60
Φ92
Φ93.6
5
65
200
Φ185
Φ145
Φ18
8
Φ118
80
200
Φ195
Φ160
Φ18
8
Φ103
Φ104
3
200
Φ200
Φ120
Φ121
3
80
Φ127
Φ128.6
5
100
220
Φ220
Φ180
Φ18
8
Φ122
Φ123
3
220
Φ235
Φ190
Φ22
8
Φ149
Φ150
3
100
Φ157
Φ158.6
5
150
300
Φ300
Φ250
Φ26
8
Φ178
Φ179
3
300
Φ203
Φ204
3
150
Φ216
Φ217.5
5
200
360
Φ340
Φ295
Φ22
12
Φ266
200
Φ259
Φ260
3.5

Chapter 5 Structure And Installation
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Table 2 Flow meter installation dimensions (height)
Diameter(mm)
Installation
Type and
pressure
The height of different converters H (mm)
Battery powered
local display
24V
Without display
24V
Local display
4
G06
254
204
254
6
G06
254
204
254
10
G06
254
204
254
15
G06
254
204
254
25
G06
265
215
265
F04
300
250
300
E25
269
219
269
40
G06
280
230
280
F04
325
275
325
E25
286
236
286
50
H03
335
285
335
F04
338
288
338
E25
304
254
304
65
F04
357
307
357
80
H03
368
318
368
F04
370
320
370
E25
336
286
336
100
H03
391
341
391
F03
398
348
398
E25
362
312
362
150
H03
456
406
456
F03
456
406
456
E05
415
365
415
200
F02
500
450
500
E03
461
411
461

Chapter 5 Flow meter operation method
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Chapter 5 Flow meter operation method
5.1. Turbine flow sensor
5.1.1. Main technical parameters
Power supply: +12V DC, +24V DC (maximum voltage +26VDC)
Output signal: pulse signal
5.1.2. Field connection method
The connection between the flow meter and the display instrument can be
selected according to the power supply of the instrument(Figure 14).
Warning: When wiring the instrument, it must be operated after power off.
Red: power positive
Yellow: signal terminal
White: power negative
Shielding layer: ground wire
Figure 11 Wiring diagram of sensor and display instrument
5.1.3. Sensor supporting display instrument
Intelligent display instrument: It can display the cumulative quantity and
instantaneous quantity, the display error is better than 0.2% FS, 8-segment broken
line non-linear correction function, the alarm output can be set as the
instantaneous upper and lower limit alarm or cumulative quantity preset output.
Power failure record function can record the total power failure time. Number of
power outages and power-on time. Output current: 4~20mA, 0~10mA; external
power supply: 24V DC, 12V DC, optional RS485 communication interface.
Dimensions: 160×80×125 or 80×160×125.
Display instrument: used for liquid quantitative filling or batching control, basic

Chapter 5 Flow meter operation method
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error 0.2%, 8-digit total and 6-digit batch display.
5.2. Turbine flow meter with local display
5.2.1. Main technical parameters
Power supply: LWGY-1—3.6V lithium battery (19Ah built-in)
LWGY-2/3/4—+24V DC power supply
display content: instantaneous flow 6 digits, cumulative total 8 digits
Output mode: LWGY-1—pulse output (optional, need external power supply)
LWGY-2/3/4—4~20mA current output, pulse output (optional) ModBus
communication (optional), the output function cannot be used at the same time.
5.2.2. Display operation method
(1) Button function
①In the automatic measurement state, the Button function:
F key: enter the parameter setting state;
Up key: Cyclic display of turbine frequency, density, meter coefficient, unit code,
instantaneous flow and Totalizer.
Left button: No function temporarily
②Key function in parameter setting state
Press the left button to display the menu items in a forward cycle;
Press the middle button to display the menu items in reverse cycle;
Press the right button to confirm and enter the parameter setting interface of the
corresponding menu item, you can modify the parameters;
in the parameter setting interface:
Press the left button to shift or scroll;
press the middle button to scroll ;
Press the right button to confirm and save the corresponding parameters and exit
the parameter setting interface.

Chapter 5 Flow meter operation method
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(2) LCD screen
Double row segment LCD, no decimal point at the end of the upper and lower rows,
use "_" instead of the decimal point.
Upper row: Q ××××××, 6-digit instantaneous flow, the unit is shown in Table 2;
Bottom row: ××××××××, 8-digit cumulative total, the unit corresponds to the
instantaneous flow.
(3) Parameter setting
Press the F key to enter the password input interface:
Enter the level 1 user password “00001111”, and then press the F key to enter the
user setting menu state, and the user can view and modify items 1-9.
Enter the level 2 administrator password "0000XXXX" (manufacturers used for
debugging, not provided to customers), and then press the F key to enter the
administrator setting menu status, and the user can view and modify items 1 to 27.
PS: The password error system returns to the running state;
In the setting state, first press the left button, and then press the middle button at
the same time to return to the running state
Restore factory settings: Press the right button, enter the factory reset password
"0000XXXX" (manufacturers used for debugging, not provided to customers), and
then press the right button to confirm, you can restore the parameters to the
factory data.
The Totalizer is cleared:
①Press the F key, enter the cumulative reset password "00005170"
(manufacturers used for debugging, not provided to customers), and then press
the F key to confirm, the cumulative total can be cleared.
②Clear the reed pipe. (Optional for this function) The unit of accumulated pulse
equivalent is L/P.
The bar code on the right side of the LCD simulates the instantaneous flow rate,
and each bar represents 10% of the instantaneous flow rate.

Chapter 5 Flow meter operation method
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Table 3 User setting menu
NO.
Setting parameters
Parameter
symbol
Default
Description
Level
1
range
FH
100.000
Upper limit of flow
1
2
Small signal removal
FL
0.001
Lower limit of flow
1
3
Correction factor
Fn
1.000
Set to 1 when no correction is
needed
1
4
unit
E
1
The units represented by 0-9 are：
m3/s、
m3/h、L/s、L/h、Kg/s、Kg/h、g/s、
g/h、t/s、t/h
1
5
density
dEn
1000.00
Density unit：Kg/m3
1
6
Slave address
Adr
01
00-99（No 485 communication when
battery powered）
1
7
Communication rate
bPs
1200
1200、2400、4800、9600（No 485
communication when battery
powered）
1
8
Output options
FO
0
0: No pulse output;
1: Cumulative pulse output (from
artery width)
2: Accumulated pulse output (10ms
pulse width)
3: Current output (invalid when
powered by battery)
1
9
Cumulative pulse
equivalent
Fdd
0.01
0.0001、0.001、0.01、0.1、1、
2、5、10、100、1000、10000、
100000（unit：L/P）
1
10
Damping coefficient
dt
0.0000
The larger the value, the greater the
damping，0~60
1
11
Meter factor
U
100.000
Average calibration factor
2
12
Segment
compensation enable
CP
0
0: No compensation 1:
Compensation
2
13
Calibration frequency
1
Fr1
250.000
First frequency
2
14
Calibration frequency
1
U1
100.000
The coefficient corresponding to
frequency Fr1
2
15
Calibration frequency
2
Fr2
500.000
Second frequency
2
NO.
Setting parameters
Parameter
symbol
default
description
level
16
Calibration factor 2
U2
100.000
The coefficient corresponding to
frequency Fr2
2
17
Calibration frequency
3
Fr3
750.000
Third frequency
2
18
Calibration factor 3
U3
100.000
The coefficient corresponding to
frequency Fr3
2
19
Calibration factor 4
Fr4
1000.00
Fourth frequency
2

Chapter 5 Flow meter operation method
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20
Calibration factor 4
U4
100.000
The coefficient corresponding to
frequency Fr4
2
21
Calibration factor 5
Fr5
1250.00
Fifth frequency
2
22
Calibration factor 5
U5
100.000
The coefficient corresponding to
frequency F5
2
23
Calibration factor 6
Fr6
1500.00
Sixth frequency
2
24
Calibration factor 6
U6
100.000
The coefficient corresponding to
frequency F6
2
25
Calibration factor 7
Fr7
1750.00
Seventh frequency
2
26
Calibration factor 7
U7
100.000
The coefficient corresponding to
frequency Fr7
2
27
Calibration factor 8
Fr8
2000.00
Eighth frequency
2
28
Calibration factor 8
U8
100.000
The coefficient corresponding to
frequency Fr8
2
Note: Frequency points 1~8 are arranged in order from small to large. When the
CP value is "0", items 13~28 are not displayed,
(4) Wiring instructions
LWGY-□□□□1 battery-powered turbine flow meter
LWGY-□□□□2/3/4 Turbine Flow meter

Chapter 5 Flow meter operation method
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15
Figure 12.Schematic diagram of internal wiring
Table 4
24V+（I+）
24V Power + (current +)
24V-（I-）
24V Power-(current -)
Vout
Voltage output+
F_V-
Pulse output power supply-
F_V+
Pulse output power supply+
Fout
Pulse output
FE
Ground
B
Modbus communication line B
A
Modbus communication line A
Pulse output wiring diagram:
When there is no sampling resistance inside the system, F_V+ is connected to the
positive pole of the power supply, F_V- is connected to the negative pole of the
power supply, and Fout is connected to the pulse signal;
When there is a sampling resistor inside the system, F_V+ is connected to the

Chapter 5 Flow meter operation method
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positive pole of the power supply, Fout is connected to the pulse signal, and F_V-
does not need to be connected.
note! The pulse signal power supply voltage range is DC5V～24V.
(5) Battery replacement
Accumulatively powered on for two years, unconditionally replace the battery. If
the meter does not display or displays abnormally within the battery lifespan, and
the measured battery voltage is lower than 2.8V, you should immediately cut off
the power supply and replace the battery, otherwise the circuit unit in the meter will
be damaged.
When replacing the battery, pay attention to the polarity of the battery to be
consistent with the battery box label, and not reverse it. Each time the cover is
opened and then assembled, the front and back covers of the instrument should
be tightened.
5.3. Turbine flow meter without display
5.3.1. Main technical parameters
Power supply: +24V DC
Output signal: 4~20mA current output
5.3.2. Usage
(1) The complete connection method of the flow meter (see Figure 14).
(2) Schematic diagram of internal wiring (see Figure 15)
(3) Schematic diagram of fine adjustment of full-scale flow (see Figure 17)
Full scale fine-tuning button: press K1 and K2 at the same time, LED2 lights up to
enter the adjustment mode and release the button, press K1 to increase the
current, and press K2 to decrease the current. It will automatically exit the
adjustment mode if there is no operation for 1 minute.
*Note: The current has been adjusted before the product is sold, please do not
adjust it at will;