Contact Platform Support
Help CenterHandheld Flowmeter
Related Products
-
Portable Flowmeter With DSP FFT TechnologyUS$ 700 - 800MOQ: 1 Piece -
Handhedld Type Ultrasonic FlowmeterUS$ 400 - 500MOQ: 5 Pieces
-
DSP FFT Technology Ultrasonic FlowmetersUS$ 700 - 850MOQ: 1 Piece
-
Clamp on Ultrasonic FlowmetersUS$ 800MOQ: 2 Pieces
-
Ultrasonic Flowmeter Portable FlowmetersUS$ 500 - 1200MOQ: 1 Carton
DF02H Handheld Ultrasonic Flowmeter
Handheld Transit Time Ultrasonic Flow Meter is very compact and easy to use.
The user-interface is self-explanatory and very easy to follow.
Unique clamp-on fixture design makes the installation simple and no special skills or tools required.
Due to the non-intrusive nature of the clamp-on technique, there is no pressure drop, no moving parts, no leaks and no contamination.
Features:
●Compact design, lightweight and user-friendly. It is perfect for field applications. Its ergonomic design ensures ease of use, even in challenging environments.
●Reynolds, sound speed & temperature compensation.
●Noise Reduction: DSP involves ultrasonic signals into digital signals, which are the processed using sophisticated algorithms. This effectively filter out background noise, crucial in industrial environments where external disturbances can affect measurement accuracy.
●Accurate Measurement: DSP to adjust for variations in the fluid’s velocity profile, ensuring accurate measurements across different pipe sizes and flow conditions.
●Small Size Measurement: The minimum measurement 8mm pipes with patent technology-integrated transducer installation
●Hart protocol support
●Data storage functions. Data is saved to a removable SD card the maximum can reach 8GB.
● Type C connectors for power supply and data transfer.
Applications：
u Water (hot water, cooling water, potable water, seawater etc.)
u Petroleum products
u Chemicals, including alcohol, acids, etc
u Beverage, food and pharmaceutical processors
u Secondary sewage, waste treatment, etc.
u Power plants, Metallurgy and miming applications
u Pipeline leak detection, inspection, tracking and collection
Principle of Measurement
DF02H transit time flow meter utilizes two transducers that function as both ultrasonic transmitters and receivers. The transducers are clamped on the outside of a closed pipe at a specific distance from each other. The transducers can be mounted in V-method in which case the ultra sound transverses the pipe twice, or W-method in which case the ultra sound transverses the pipe four times, or in Z-method in which case the transducers are mounted on opposite sides of the pipe and the ultra sound transverses the pipe only once. The selection of mounting method depends on pipe and liquid characteristics. When the flow meter works, the two transducers transmits and receives ultrasonic signals amplified by multi beam which travels firstly downstream and then upstream (Figure 1). Because ultra sound travels faster downstream than upstream, there will be a difference of time of flight(△ｔ). When the flow is still, the time difference(△ｔ) is zero. Therefore, as long as we know the time of flight both downstream and upstream, we can work out the time difference, and then the flow velocity (V) and flow volume (Q) via the following formula.
V= K*D* △ｔ
V: Liquid velocity
K: Constant
D: Distance between the two transducers
△ｔ: Difference in time of flight
| Figure 1 |
Specifications
Transmitter | |
Display |
4 line×16 English letters LCD backlit can display total flow, flow rate, velocity and meter running status etc. |
Accuracy |
±1.0%~2.0% of reading at rates >0.5 m/s |
±0.005 m/s of reading at rates | |
Velocity |
0 ~ ±40 ft/s (0 ~±12m/s), bi-directional |
|
Units Rate Totalized |
User Configured (English and Metric); Rate and Velocity Display; (FWD, NET, REV or BATCH) gallons, ft³, barrels, lbs, liters, m³,kg |
Output |
Data storage |
Sensitivity |
Flow Rate: 0.001ft/s (0.0003m/s) |
Repeatability |
0.2% of reading |
Security |
Keypad lockout, access code enable |
Power Supply |
built-in batteries. When fully recharged it will last over 12 hours of operation. 90-240VAC for the charger |
Dimensions and Weight |
262(L)*150(W)*32(H)mm Weight: 1.5kg |
Transducer | |
Liquid Types Supported |
Virtually most any liquid containing less than 2% total suspended solids (TSS) or aeration |
Suited Liquid Temperature |
Std. Temp.: -40℃~100℃ Moderate Temp.: -40℃~250℃ |
Sensor Size |
Clamp on transducer: Small Size transducer:DN8-20mm &DN20-50mm Medium Size transducer:DN50 -1000mm Large Size transducer:DN1000-4500mm |
Data Logger |
Optional 512M to 8GB SD card Windows-based Software Utility, data logging, data report, and data curve and analyze. |
Parts Identification:
Parts Identification:
Selection Guide
DF02H-1 Handheld Ultrasonic Flow Meter Selection Table
Model DF02H X -X -X/ *（Transmitter）
Output Selection 1
N—N/A-X
1— Data storage
Output Selection 2
Same as Output Selection 1
Power Supply (Type C Connector)
D—90-240VAC
Transducer Selection
Model HRX -X -X -X -X -X -X
Transducer Type
S1— Small (DN8-20) Stainless steel
S2— Small (DN20-50) Stainless steel
M— Medium (DN50-1000) Stainless steel/POM
L— Large (DN1000-4500) POM
Transducer Mounting Frame
FS1— for DN8-DN20
FS2—for DN20-DN50
SS—Stainless Steel for DN50 above
Transducer Temperature
N— - 40～121℃
H— - 40～250℃
Mounting Type
N— Common
M— Magnetic (suitable for pipe DN50-1000 Medium transducers)
Pipeline Diameter
DNX – DN20, DN4500
Cable Length
Xm - Common cable, Max 300m
Parts Number Construction example:
Description: DF02H-1-2-D/HRX-S1-N-N-N-4M Handheld ultrasonic flow meter, Frequency and RS232 output, with 90-240VAC power supply;S1 type transducer, FS1 mounting frame, standard temperature 40~121℃, common mounting type, 4m straight cable.
Send Inquiry to This Supplier
You May Also Like
-
Handheld Ultraosnic Flowmeters With Long Time WorkingUS$ 300 - 1500MOQ: 1 Piece
-
Ultrasonic Flowmeter Portable FlowmetersUS$ 500 - 1200MOQ: 1 Piece
-
Ultrasonic Flowmeter Clamp on FlowmeterUS$ 500 - 1000MOQ: 1 Piece
-
Portable UltraSonic FlowmeterUS$ 700 - 1200MOQ: 1 Piece
-
Ultrasonic Flowmeter Clamp on FlowmeterUS$ 100 - 800MOQ: 1 Piece
-
Ultrasonic Flowmeter Clamp onUS$ 300 - 600MOQ: 1 Piece
-
Ultrasonic Flowmeter Portable FlowmeterUS$ 300 - 1000MOQ: 1 Piece
-
Ultrasonic Flowmeter Clamp onUS$ 300 - 500MOQ: 1 Piece
-
Bulk Size FlowmeterUS$ 1 - 2000MOQ: 1 Unit
-
Ultrasonic Portable FlowmeterUS$ 1000 - 2000MOQ: 1 Unit
