Agricultural weather Station

Product Center

Contact us

Shandong Fengtu IOT Technology Co., Ltd

Sales Manager:Ms. Emily Wang

Tel, Whatsapp:+86 15898932201

Email:info@fengtutec.com

Add:No. 155 Optoelectronic Industry Accelerator, Gaoxin District, Weifang, Shandong, China

Fixed Ultrasonic Flow meter

Fixed Ultrasonic Flow meter

Model:TDS-100

Brand:fengtu

Fixed Ultrasonic Flow meter is an instrument to measure fluid flow using ultrasonic waves, which is suitable for almost all applications of liquid flow measurement.

Product details

1.Fixed Ultrasonic Flow Meter Product Introduction

Fixed Ultrasonic Flow meter is an instrument to measure fluid flow using ultrasonic waves, which is suitable for almost all applications of liquid flow measurement.Fixed Ultrasonic Flow meter integrates the company's more than ten years of professional production and manufacturing of ultrasonic flow meter technology and experience, using TI's MFP430FG4618 low-power microcontroller, is a high-performance, low-price, good reliability, powerful new ultrasonic flow meter product.

The product has been greatly improved compared with the original ultrasonic flowmeter in terms of measurement accuracy, measurement stability, communication protocol, ease of use, etc. At the same time, it has achieved the non-adjustment of component parameters during the production process, the production process is simpler and more applicable, and the product consistency is better, thus ensuring that each product leaving the factory achieves the best performance.

2. Working Principle of Fixed Ultrasonic Flow Meter

When an ultrasonic beam propagates in a liquid, the flow of the liquid will cause a slight change in the propagation time. The change in 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 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.

3. Fixed Ultrasonic Flow Meter Product Features

In addition to the general functions of similar products, ultrasonic flow meters also have the following features:

1. The number of sampling times per cycle has been increased to 128 times, and the measurement results are more stable. It can meet the flow measurement needs of most clean water, sewage and various chemical liquids, and greatly reduce the interference of poor detection environment on the measurement results.

2. The use of electrically isolated DC power supply greatly improves the reliability and anti-interference of the host. If there is no power supply on site, users can choose a 15W solar panel with a 24V/30AH lead-acid battery pack, and can achieve continuous power supply for a week on cloudy days.

3. The measuring mainboard is equipped with a standard isolated RF-485 interface, which can support both MODBUS and M-BUS standard protocols, and is fully compatible with the communication protocol of the original ultrasonic flow meter and various flow meter water meter protocols produced by the company.

4. The measurement mainboard is equipped with a serial expansion bus interface, and users can select various function expansion modules for function expansion. The expandable functions include 4-20mA current loop output, frequency signal output, large-capacity data recording, thermal printer, etc.

5. The mainboard has two three-wire PT100 platinum resistance input circuits. When connected to a platinum resistance, it becomes a complete ultrasonic calorimeter. At the same time, the temperature difference sensitivity function is added to prevent the ineffective accumulation of heat during long-term low flow rate or low temperature difference.

6. The mainboard has three analog input circuits. It can input physical quantities such as pressure and liquid level and can be used as a simple RTU.

7. A fault timer is added to the software operation window (located in menu M+9). When the instrument cannot measure normally, the time value will increase.

8. There are up to 8 different language interfaces for customers to choose from.

4. Fixed Ultrasonic Flow Meter Technical Parameters

projectPerformance and parameters
HostAccuracy1.0%
Repeatability0.2%
Maximum flow rate6m/s
Measuring cycle500ms (2 times per second, 128 sets of data are collected in each cycle)
Measuring principleUltrasonic time difference principle, 4-byte IEEE754 floating point operation
Display InterfaceCan be connected to 2×10 backlit Chinese characters or 2×20 character LCD displays
operateExternal 16-key touch keyboard and PC computer parameter setting software
enter3 optional 4~20mA inputs with an accuracy of 0.1%. Pressure, liquid level, temperature and other signals can be input and can also be used as a digital interface.
Two three-wire PT100 platinum resistance input circuits can realize heat measurement function (enthalpy difference method)
Output

Current signal (optional module): 4~20mA, impedance 600Ω floating, accuracy 0.1%.

Frequency signal (optional module): Optional between 1~9999Hz, OCT output.

Pulse signal: positive, negative, net flow and heat accumulation pulses, dual-channel OCT output (one of which has a programmable pulse width between 6 and 1000mF, the default is 200mF).

Alarm signal: Dual-channel OCT output, with nearly 20 source signals to choose from.

Data interface: isolated RF485 serial interface.

Communication ProtocolMODBUS protocol, MBUS protocol, FUJI extended protocol (compatible with Huizhong flowmeter and water meter communication protocol), it is recommended to use MODBUF-RTU protocol or MODBUS-ASCII protocol
Other features

Automatically memorize the accumulated flow and working status of the previous 64 days, the previous 32 months, and the previous 2 years; automatically memorize the previous 16 power-on and power-off times and flow rates, and can realize automatic or manual replenishment;

Programmable quantitative controller (can be started using external input signal or MODBUF instruction);

1 bidirectional serial interface can connect multiple external devices such as 4~20mA, data logger, etc.;

The working parameters can be solidified into the FLAFH memory inside the machine and automatically called out when powered on;

Users can upgrade the software via code files sent via E-mail

Fault self-diagnosis function.

Fault time timer.

Working current50mA (without keyboard display and buzzer)
Standby currentUsing CR2032, data can be kept for 100,000 hours without loss under 24VDC power failure condition
Ambient temperature-10℃~70℃ (Please contact the manufacturer if the temperature is higher than this range)
Working hourscontinuous
sensorExternal clampM2 is suitable for pipe diameters DN50~700mm
Signal CableSpecial purpose, factory standard 5 meters, single cable can be extended to 500 meters in certain occasions (not recommended).
Protection levelIP68 (can work in water)
Measurable pipelinePipeAll dense pipes such as steel, stainless steel, cast iron, PVC, PE, PPR copper, aluminum, cement pipes, etc. are allowed to have lining (plastics should try to control the wall thickness to less than 8mm, otherwise it will not be able to be measured if it is not dense).
Lining materialEpoxy bitumen, rubber, mortar, polypropylene, polystyrene, polyester, polyethylene, hard rubber, bakelite, polytetrafluoroethylene.
Straight pipe lengthUpstream ≧10D, downstream ≧5D, and distance from pump outlet ≧30D.
Measurable pipelinetypeWater
Turbidity≦20000ppm, good effect in sewage measurement, most sewage pipes can be measured stably.
temperature-40℃~160℃
Flow directionThe forward and reverse flows can be measured separately, and the net flow can also be measured.



本文地址:https://fengtusz.com/Ultrasonic-flow-meter/Fixed-Ultrasonic-Flow-meter.html
Hello, my friend!What kind of support do you need? Our products is sure to satisfy you.
*Name
*Email
Phone
Country
*Message