ddtop UFM User manual

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UFM
ULTRASONIC FLOW METER
Operation Manual
UFM-DT-JS-1035-2019 (A)

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Preface
Thank you for choosing the products of Dandong Top Electronics Instrument (Group)Co.,Ltd.
This operation manual provides you with important information on installation, connection and
commissioning as well as on maintenance, troubleshooting and storage. Please read it carefully
before installation and commissioning and keep it as part of the product near the meter for easy
reading.
This manual can be downloaded by entering the version number at www.ddtop.com .
If the instructions are not followed, the protection provided by the meter may be destroyed.
Trademark, Copyright and Restriction Instructions
Dandong Top Electronics Instrument (Group) Co.,Ltd.®, Dandong Top Pump Co., Ltd.®, DDTOP®
are registered trademarks of the company.
The performance specifications of the meter are effective as of the date of publication and are
subject to change without notice. Dandong Top Electronics Instrument (Group)Co.,Ltd. reserves the
right to modify the products described in this manual at any time without prior notice.
Quality Assurance
Dandong Top Electronics Instrument (Group) Co.,Ltd. guarantees that all glass plate level gauge
have no defects in materials and manufacturing processes within one year from the date of delivery.
During the warranty period, if the product returns with quality problems and the claim is
determined by the manufacturer to be within the scope of warranty, Dandong Top Electronics
Instrument (Group) Co.,Ltd. is responsible for repair or replacement of the buyer (or owner) free of
charge.
Dandong Top Electronics Instrument (Group) Co.,Ltd. is not responsible for the costs caused by
improper use of equipment, labor claims, direct or subsequent damage and installation and use of
equipment. In addition to the special written warranty certificate for certain products of Dandong
Top Electronics Instrument (Group) Co.,Ltd., Dandong Top Electronics Instrument (Group) Co.,Ltd.
does not provide any express or implied warranty.
Quality
Dandong Top Electronics Instrument (Group) Co.,Ltd. has passed the ISO9001 quality system
certification. The whole process of product production is strictly in accordance with the scope of the
quality system, providing the strongest guarantee for product and service quality.

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CONTENTS
1 Safety Tips ....................................................................................................................................................................... 4
1.1 Explosion may result in death or serious injury.................................................................................4
1.2 Process leaks can cause serious injury or death................................................................................4
1.3 Failure to follow safe installation guidelines may result in death or serious injury................4
2 Product Description ..................................................................................................................................................... 4
2.1 Main Structure of the Product - Figure 1............................................................................................4
2.2 Operating Principle .....................................................................................................................................5
2.3 Warehousing.................................................................................................................................................5
3 Main Parameters ........................................................................................................................................................... 5
4 Unpacking and Inspection ......................................................................................................................................... 5
4.1 Precautions for Unpacking Inspection..................................................................................................5
4.2 Content of Inspection................................................................................................................................. 5
5 Screen and Operation ................................................................................................................................................. 5
5.1 Main Screen...................................................................................................................................................6
5.2 Menu Screen .................................................................................................................................................6
5.3 Keyboard and Operation ..........................................................................................................................6
6 Parameter Settings ....................................................................................................................................................... 7
6.1 Parameter Settings......................................................................................................................................7
6.2 Display Settings............................................................................................................................................ 9
7 Debugging ....................................................................................................................................................................10
7.1 Single Point Calibration ...........................................................................................................................10
7.2 Two-point and Multi-point Calibration .............................................................................................10
7.3 Calibration Method...................................................................................................................................11
8 System Settings ...........................................................................................................................................................11
8.1 Language......................................................................................................................................................11
8.2 Date and Time ............................................................................................................................................11
8.3 Restore Factory Setting............................................................................................................................11
8.4 Factory Setting............................................................................................................................................11
9 Frequently Asked Questions ...................................................................................................................................12
9.1 How to Identify Fluid Flow in a Pipeline.............................................................................................12
9.2 How to Set up a Zero Cut to Avoid Invalid Accumulation...........................................................12
9.3 How to Set 4~20mA Output..................................................................................................................12
Appendix Common Parameters...................................................................................................................12

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1 Safety Tips
It is expressly prohibited to modify or change products for safety reasons，repair or replacement
only allows the use of accessories specified by the manufacturer.
1.1 Explosion may result in death or serious injury.
When installing equipment in an explosive atmosphere, be sure to follow applicable local, national,
international standards, codes, and procedures. Be sure to install the equipment in Intrinsically safe
or non-flammable site operating procedures.
1.2 Process leaks can cause serious injury or death.
Care should be taken to lift the transmitter. If the process seal is damaged, the medium may leak at
the joint.
1.3 Failure to follow safe installation guidelines may result in death or serious injury.
The operations described in this manual are performed by professionally trained and qualified
professionals or end-user specialized professionals to complete.
2 Product Description
2.1 Main Structure of the Product - Figure 1
Figure 1 Main Structure of the Product
1. Host
2. Straight Pipe
3. Straight Pipe Section Nameplate
1
2
Ultrasonic Flow Meter UFM-C
October 10,2019 18:18:18 *R
Instantaneous Flow Rate：
Accumulation：
123.45 m3/h
678.90 m3
xxxx
xxxxxxxxx
xxxxx xxx
3

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2.2 Operating Principle
Ultrasonic signal propagation in the fluid, the propagation speed will be affected by the medium
flow rate, resulting in downstream and counter-current propagation time is different, in the same
propagation distance, there will be propagation time difference, and then introduce other
parameters, after further calculations can be obtained flow. Ultrasonic flow meter provides 4 ~
20mA current output, LCD screen can display the current instantaneous flow, accumulation and
other information.
2.3 Warehousing
Storage temperature -20℃~+60℃, relative humidity not more than 85% in a non-corrosive
ventilated room.
3 Main Parameters
1. Instrument diameter: DN50-DN1000 (can be customized)
2. Flow rate range: 0~±10m/s
3. Fluid temperature: -30℃~160℃
4. Pipe material: steel, stainless steel, cast iron, copper, PVC, aluminum, glass fiber reinforced plastic
and all other quality tight piping.
5. Accuracy: ≤ ±1%
6. Repeatability: ≤±0.2%
7. Power consumption: ≤3W
8. Types of fluids: water, seawater, sewage, acids and alkalis, alcohol, etc., which are single media
capable of conducting ultrasound.
4 Unpacking and Inspection
4.1 Precautions for Unpacking Inspection
4.1.1 Check whether the product nameplate is consistent with the supply list information.
4.1.2 Check the completeness of the accessories against the supply list.
4.2 Content of Inspection
4.2.1 Check the appearance of the instrument for defects, damage and other abnormalities.
4.2.2 Checking for damage, fracture and other abnormalities in the straight pipe section.
4.2.3 Checking for abnormalities such as untightened sensor cover plate connections.
5 Screen and Operation

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5.1 Main Screen
Figure 2 Main Screen Display
Description:
1. Ultrasonic flowmeter name and model number at top. 2.
2. The left side of the blue background is the current time, and the right side is the current working
status of the flow meter (see the following).
3. The top half of the display area is the current instantaneous flow value (the number of decimal
places can be set in the menu as required).
4. The bottom half is the cumulative amount (which can be zeroed out in the menu).
Figure 3 Menu Screen
5.2 Menu Screen
Description:
1. The primary menu is on the far left and its sub-menus (secondary menus) are on the right of the
primary menu.
2. The currently selected menu window is orange background box, the currently selected menu item
is blue background.
5.3 Keyboard and Operation
The keyboard as shown in Figure 4, from left to right for the left, up, down and right four optical
keys, of which the left and right (i.e. two keys on both sides) pressed at the same time for the Enter
(ENT / ) key, up and down (i.e. two keys in the middle) pressed at the same time for the return
(ESC) key.
How to enter the menu: In the main interface, press Enter (ENT/ , that is, both buttons pressed
at the same time) to enter the menu (settings) interface; press the return key (ESC, that is, the
middle of the two buttons) will return up to the first level of the menu, and finally return to the main

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interface (traffic display interface).
In the menu (settings) screen, the top and bottom are used to select menu items, and the left and
right are used to select editable numeric digits.
Figure 4: Keyboard Layout
6 Parameter Settings
6.1 Parameter Settings
In the main interface (Figure 2), press the Enter key (ENT/ ) to enter the settings (menu) interface
(Figure 3).
1) Select "Pipeline Parameters", and then press to enter the secondary menu, select "Pipeline
OD", and then press to enter the OD edit interface (Figure 5), type in the pipe OD value, and
then press to save the OD value, the system will automatically return to the previous menu.
Figure 5 Outer Diameter Edit Box
2) Press to select "Pipe Wall Thickness", press to enter the wall thickness edit box,
type the wall thickness value, press to save and return to the previous menu.
Figure 6 Wall Thickness Edit Box

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3) Press to select "pipe material", the default is carbon steel, press to enter the pipe material
selection box, and then select the corresponding pipe material, press to save and return to the
upper menu (Figure 7). If there is no current pipe material in the pipe material selection column,
then select other, press to enter the pipe material speed input window (Figure 8), enter the
speed of sound of the current pipe material, press Enter to save and return to the menu bar.
Figure 7 Pipe Material Selection
Figure. 8 Other Material Speed of Sound Edit Box
4) Press to select "lining material", the default is none, press to enter the lining material
selection box, select the corresponding lining material, press to save and return to the upper
level menu (Figure 9). If the lining material selection column does not have the current lining
material, then select other, press to enter the lining material speed of sound input window, enter the
speed of sound of the current lining material, then press enter to save and return to the menu bar.
Figure 9 Pipe Lining Selection Frame
5) Press to select "lining thickness", press to enter the lining thickness edit box, if there is
no lining material, enter 0, press to save and return to the upper level menu, if there is a lining

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can enter the corresponding lining thickness.
6) Press to select "Roughness", and then press to enter the Roughness edit box, enter the
pipe roughness, and then press to save and return to the menu bar (Figure 10).
Figure 10 Pipe Roughness Setting
7) Press ESC to return to the primary menu, and then select "Fluid Parameters", press to enter
the secondary menu, select "Fluid Type", enter the tertiary menu to select the fluid type, enter the
fluid "kinematic viscosity", "density", "temperature" and other parameters.
8) Press ESC to return to the first level menu, select "installation settings", set the "probe type" and
"installation", and then press to select "installation information", you can view the installation
information in the three-level menu location (Figure 11), the information bar displays the current
settings of the parameters of the flowmeter and the probe installation distance (installation distance
for the distance of the probe housing, Figure 11).
Figure 11 Installation Information View
6.2 Display Settings
Enter the first level menu "4. Flow Rate Setting", you can set the resolution and multiplication factor
of instantaneous flow rate, the resolution and multiplication factor of accumulation rate, and the
display mode of accumulation rate as shown in Figure 12.

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Figure 12 Main Screen Display Related Settings
7 Debugging
7.1 Single Point Calibration
In the menu screen, select "6. Calibration Settings" and enter the lower level menu, select "2.
"standard values", as shown in Figure 19.
Figure 19 Single-point Calibration Input Interface
Note: Measured value: the current flow value displayed on the main screen.
Standard value: The actual flow value in the current pipeline.
7.2 Two-point and Multi-point Calibration
If "Two-point Calibration" and "Multi-point Calibration" are to be used, the current flow rate in the
pipe must be adjustable and can be adjusted between a minimum flow rate (around 10 m3/h) and a
maximum flow rate (the maximum flow rate in the current pipe). If the conditions allow, you can
choose "Two-point Calibration" and "Multi-point Calibration" to make the flowmeter measurement
more accurate. The parameters of "Two-point Calibration" and "Multi-point calibration" can be
entered in the same way as "Single-point Calibration", i.e. press the down arrow to select the
corresponding mode, and then enter the corresponding position in the lower level menu. Two or
more sets of measurements and standard values.

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7.3 Calibration Method
After entering the calibration parameters, select "1. Calibration method ", enter the lower menu,
select the corresponding calibration method. Note that if the selected calibration method does not
have a corresponding parameter (measured value vs. standard value), a message will be displayed
and "None" will be selected by default. This is shown in Figure 20.
Figure 20 Information Prompt Window
After confirming the calibration method, return to the main screen for normal measurement.
8 System Settings
8.1 Language
Select "7. System Settings "in the main menu and "1. Language" in the lower menu. After entering,
select the corresponding language in the lower menu, then press enter to set the system language.
8.2 Date and Time
The "2. Date and Time" under system settings can calibrate the system time, just enter it directly. For
example: set the current time to January 1, 2018, 13:23:14, that is, in the date input box: 180101,
press to enter the time input box, enter 132314, press to save and return to the upper
menu can be.
8.3 Restore Factory Setting
If you do not know whether the current flow meter parameters are set correctly, or if you need to
reset the parameters, you can first restore the flow meter to the default parameters set at the
factory, and then reset the parameters according to the contents of Chapter 3, and install the flow
meter.
8.4 Factory Setting
This menu item is a design-developer specific menu and cannot be set by the user.

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9 Frequently Asked Questions
9.1 How to Identify Fluid Flow in a Pipeline
When the sensor is properly installed and wired, a positive instantaneous flow rate indicates that the
fluid is flowing in a positive direction, i.e., from the upstream probe to the downstream probe. If the
instantaneous flow rate shows a negative value, it means that the flow is in the opposite direction.
9.2 How to Set up a Zero Cut to Avoid Invalid Accumulation
Select "5. Advanced Settings" in the main menu, then select "3.Cut-off Flow Rate”in the lower menu.
The system will treat the flow rate below this value as "0" to avoid false accumulation of
measurement error generated by the flowmeter when the real flow rate is "0". In general, the
secondary parameter is set at 0.03m/s. When the flow rate is greater than the cut-off flow rate, the
measurement result has nothing to do with the cut-off flow rate and will not affect the
measurement result.
9.3 How to Set 4~20mA Output
Select "5. Advanced Settings " in the main menu,and enter to select "1. Lower Flow Limit", enter the
lower flow rate limit value in the corresponding window, which indicates the flow rate value at 4mA;
select "2. Upper Flow Limit”, enter the upper flow rate limit value in the corresponding window,
which indicates the flow rate value at 20mA.
To calibrate, unplug the probe cable, then go to "5. Advanced Settings" and select "8.4~20mA
Settings", enter the appropriate value in the lower level menu to make the output 4mA to complete
the calibration.
Appendix Common Parameters
Table 1 Velocity and Viscosity of Common Liquids
Liquid
Velocity(m/s)
Viscosity
Liquid
Velocity(m/s)
Viscosity
Water 20℃
1482
1.0
Glycerine
1923
1180
Water 50℃
1543
0.55
Petrol
1250
0.80
Water 75℃
1554
0.39
66#Petrol
1171
——
Water 100℃
1543
0.29
80#Petrol
1139
——
Water 125℃
1511
0.25
0#Diesel Fuel
1385
——
Water 150℃
1466
0.21
Benzene
1330
——
Water 175℃
1401
0.18
Ethylbenzene
1340
——

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Water 200℃
1333
0.15
Toluene
1170
0.69
Water 225℃
1249
0.14
Carbon
Tatrachloride
938
0.608
Water 250℃
1156
0.12
Gasoline
1420
2.3
Acetone
1190
0.407
Petroleum
1290
——
Methanol
1121
——
Turpentine
1280
——
Ethanol
1168
——
Trichloroethylene
1050
0.82
Alcohol
1440
1.5
Dagang
Navigation Coal
1298
——
Ketone
1310
——
Daqing 0#
aviation coal
1290
——
Acetaldehyde
1180
——
Peanut Oil
1472
——
Ethylene
Glycol
1620
21.112
Castor Oil
1502
——
Aniline
1659
1.762
Ether
1006
0.336
n-Octane
1192
——
o-Xylene
1360
——
Trichlorometh
ane
1001
0.383
Chlorobenzene
1289
——
Glycerine
1923
1188.5
Acetic Acid
1159
1.162
Methyl
Acetate
1181
0.411
Ethyl Acetate
1164
——
Dicarboxylic
Acid
1389
——
Heavy Water
1388
1.129
Quicksilver
1451
0.114
Nitrobenzene
1473
1.665
Carbon
Disulfide
1158
0.290
Tribromethane
931
——
n-Propanol
1225
——
n-Pentane
1032
0.366
n-Ethane
1083
0.489
light Oil
1324
——
Transformer
Oil
1425
——
Spindle
Lubrication
1342
15.7
Petroleum
1295
——
Petrol
1250
0.4-0.5

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Table 2 Velocity of Common Materials
Tube Material
Velocity (m/s)
Lining Material
Velocity (m/s)
Steel
3206
Teflon
1225
Iron
3230
Ductile Iron
3000
Cast Iron
2460
Stainless Steel
3206
Lead
2170
Chloroethylene
2640
ABS
2286
Titanium
3150
Aluminum
3048
Cement
4190
Brass
2270
Pitch
2540
Cast Iron
2460
Enamel
2540
Bronze
2270
Glass
5970
Glass-reinforced
Plastic
3430
Plastic
2280
Glass
3276
Polyethylene
1600
Polyethylene
1950
Polytetrafluoroethylene
1450
Propenyl
2644
FRP
2505
PVC
2540
Rubber
1600
Mortar
2500
Asphalt Epoxy
2505
Table 3: Velocity Table in Water
T/℃
V(m/s)
t/℃
V(m/s)
t/℃
V(m/s)
t/℃
V(m/s)
t/℃
V(m/s)
t/℃
V(m/s)
0
1402.3
18
1476.0
37
1523.5
55
1547.3
73
1555.0
91
1549.8
1
1407.3
19
1479.1
38
1525.3
56
1548.1
74
1555.1
92
1549.2
2
1412.2
20
1482.3
39
1527.1
57
1548.9
75
1555.1
93
1548.5
3
1416.9
21
1485.3
40
1528.8
58
1549.6
76
1555.0
94
1547.5
4
1421.6
23
1491.1
41
1530.4
59
1550.3
77
1554.9
95
1547.1
5
1426.1
24
1493.9
42
1532.0
60
1550.9
78
1554.8
96
1546.3
6
1430.5
25
1496.6
43
1533.5
61
1551.5
79
1554.6
97
1545.6

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7
1434.8
26
1499.2
44
1534.9
62
1552.0
80
1554.4
98
1544.7
8
1439.1
27
1501.8
45
1536.3
63
1552.5
81
1554.2
99
1543.9
9
1443.2
28
1504.3
46
1537.7
64
1553.0
82
1553.9
10
1447.2
29
1506.7
47
1538.9
65
1553.4
83
1553.6
11
1451.1
30
1509.0
48
1540.2
66
1553.7
84
1553.2
12
1454.9
31
1511.3
49
1541.3
67
1554.0
85
1552.8
13
1458.7
32
1513.5
50
1542.5
68
1554.3
86
1552.4
14
1462.3
33
1515.7
51
1543.5
69
1554.5
87
1552.0
15
1465.8
34
1517.7
52
1544.6
70
1554.7
88
1551.5
16
1469.3
35
1519.7
53
1545.5
71
1554.9
89
1551.0
17
1472.7
36
1521.7
54
1546.4
72
1555.0
90
1550.4