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Shandong Fengtu IOT Technology Co., Ltd
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Add：No. 155 Optoelectronic Industry Accelerator, Gaoxin District, Weifang, Shandong, China
Handheld Ultrasonic Flow Meter
Model：TDS-100H
Brand：fengtu
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Product details
1.Product Introduction of Handheld Ultrasonic Flow Meter
Handheld Ultrasonic Flow Meter uses external sensor to measure liquid flow, easy to install, and is a necessary tool for instant flow detection.The Handheld Ultrasonic Flow Meter uses a low-voltage, multi-pulse transmitting circuit, which greatly improves the measurement accuracy, service life and reliability; the dual-balanced signal differential transmitting and receiving circuit can effectively resist interference from strong interference sources such as frequency converters, TV towers, high-voltage lines, etc.; the built-in rechargeable NiMH battery can work continuously for more than 12 hours; the optimized intelligent signal adaptive processing does not require any circuit adjustment by the user.
Ultrasonic flowmeters are largely made of world-renowned semiconductor manufacturers, such as Philips, Maxim, Ti, Winbond and Xilinx, etc. The advanced circuit design, the selection of the latest devices, the excellent hardware design and the user-friendly software design in Chinese and English make ultrasonic flowmeters well received by users.
2. Features of Handheld Ultrasonic Flow Meter
* Large LCD display
* Non-contact measurement
* Built-in data logger
* Built-in rechargeable battery
*High precision measurement
* Large measuring range
* Small size and light weight
* RS-232 standard data interface
3. Working Principle of Handheld Ultrasonic Flow Meter
When the ultrasonic beam propagates in the liquid, the flow of the liquid will cause a slight change in the propagation time, and the change in the propagation time is proportional to the flow rate of the liquid. At zero flow, the time required for the two sensors to transmit and receive the sound waves is exactly the same (the only technology that can actually measure zero flow). When the liquid flows, the sound wave transmission time in the upstream direction is greater than the sound wave transmission time in the downstream direction.
4. Handheld Ultrasonic Flow Meter Technical Specifications
| Linearity | 0.5% |
| Repeatability | 0.2% |
| Accuracy | ±1% of indicated value, flow velocity＞0.2 m/s |
| Response time | 0-999 seconds, user selectable |
| Flow rate range | ±32 m/s |
| Measuring diameter | 15-6000mm |
| Accumulator | 7-bit positive, negative, and net totalizers |
| Liquid type | Any single, uniform liquid capable of conducting ultrasonic waves |
| Safety | Set the value to lock, unlock to change data |
| show | 4×8 Chinese or 4×16 English |
| Communication interface | RS-232, baud rate 75-57600, compatible with Fuji ultrasonic flowmeter, and other products as required by users |
| Sensor Cable | The standard size is 5m×2, which can be extended to 10m×2 |
| power supply | 3 AAA built-in Ni-H batteries, each full charge can continuously work for 12 hours, AC100-240V adapter |
| Data Recording | Built-in data logger, can record 2000 lines of data |
| Manual totalizer | 7-digit, press a button to start calibration |
| Housing Material | Flame retardant ABS |
| Dimensions | 210×90×30mm |
| Host weight | 500g including battery |
5. Handheld Ultrasonic Flow Meter Configuration List
| name | quantity |
| Host | 1 |
| Medium Sensor | 2 |
| Ultrasonic signal cable | 2 roots |
| Data cable | 1 root |
| Power adapter | 1 |
| Ultrasonic coupling agent | 1 bottle |
| Tensioner | 2 roots |
| tape measure | 1 |
| manual | 1 |
| Aluminum alloy protective box | 1 |
This paper addresses：https://fengtusz.com/Ultrasonic-flow-meter/Handheld-Ultrasonic-Flow-Meter.html
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