1. Problem: RS485 communication baud rate compatibility failure of third-party ultrasonic flow meters
with RS485 communication baud rate compatibility when using a TUF2000B ultrasonic flow meter from a certain manufacturer : when the baud rate was configured to 19,200 kb/s, the device was completely unable to communicate via RS485; however, communication returned to normal when the baud rate was adjusted to other values such as 9,600 and 38,400. This fault directly affected the customer's ability to collect equipment data and remotely control it, hindering the digital management of the production process.
2. Requirements: Ensure the communication stability and metering reliability of the ultrasonic flow meter.
Based on the above issues, the core needs of customers can be summarized into two points:
Communication reliability requirements : We hope that the newly purchased
ultrasonic flow meter can stably support RS485 communication to avoid faults such as baud rate incompatibility, and to ensure that the equipment data can be transmitted to the control system in real time and accurately.
Metering performance requirements : As a flow metering device, it must meet the basic requirements of accuracy and range in industrial scenarios, while also having good environmental adaptability and durability.
3. Challenge: How to overcome the dual technical bottlenecks of communication and measurement?
To meet customer needs, the following technical and service challenges must be addressed:
Communication technology challenges : The stability of RS485 communication is affected by multiple factors such as baud rate, cable length, and anti-interference capability. Potential communication failure points, such as baud rate compatibility, need to be addressed through both hardware design and firmware optimization.
Metering accuracy challenge : In industrial scenarios, changes in the temperature and flow rate of the medium (such as tap water and industrial fluids) can affect metering accuracy. It is necessary to ensure the measurement stability of the flow meter over a wide range and temperature range.
Trust Building Challenges : Customers have developed concerns about the ultrasonic flow meter product due to previous malfunctions. How to rebuild trust through product upgrades and technical explanations is a key challenge at the service level.
4. Solution: Technological Innovations in the Upgraded 2023 Ultrasonic Flow Meter
To address customer pain points and needs, we recommend the 2023 upgraded ultrasonic flow meter , which completely resolves customer concerns through a three-dimensional solution of "communication optimization + accuracy upgrade + hardware enhancement":
4.1 Low-level optimization of the communication module
It adopts an industrial-grade RS485 communication chip with built-in baud rate adaptive and anti-interference algorithms, supporting stable communication at a full range of baud rates from 1200 to 115200 kb/s, eliminating baud rate compatibility issues from the hardware driver and firmware logic levels.
Equipped with shielded communication cables (length optional 2×5M and above) to enhance resistance to electromagnetic interference and ensure the integrity of data transmission in complex industrial environments.
4.2 Comprehensive upgrade of metrological performance
The measurement accuracy has been improved to ±1.5%, and the measuring range covers DN80 - DN700, which can be adapted to the flow measurement of pipes with various pipe diameters; the medium temperature adaptability range has been extended to -30~70℃ to meet the fluid metering needs under different working conditions.
Employing high-precision time difference measurement technology , it is more sensitive to capturing fluid flow velocity, ensuring measurement accuracy even in low-flow-rate scenarios.
4.3 Enhancement of Hardware and Structural Durability
The outer shell is made of aluminum alloy , which combines lightweight and high strength. Its impact resistance and corrosion resistance far exceed those of ordinary plastic shells, making it suitable for complex industrial environments.
The power supply design is compatible with a wide voltage range of 85-265VAC and 24VDC DC power supply, adapting to different power configurations in different environments and improving the device's adaptability to various scenarios.
5. Product Configuration: 2023 Upgraded Ultrasonic Flow Meter (Medium Probe Type) Details
To meet customers' industrial metering and communication needs, the recommended product configuration is as follows:
| Product Module |
Specifications |
Functional value |
| Ultrasonic flow meter main unit |
Measuring range: DN80 - DN700; Temperature: -30~70℃; Accuracy: ±1.5%; Power supply: 85 - 265VAC/24VDC; Signal output: 4 - 20mA/RS485; Aluminum alloy housing. |
The core metering unit enables accurate flow measurement and stable communication. |
| medium probe |
Compatible with DN80 - DN700 conduit diameters, cable length 2×5M |
The fluid velocity inside the pipeline is collected and transmitted to the host computer for processing. |
| Communication cables |
Shielded RS485 cable, length optional. |
Ensure the stability of data transmission between equipment and control systems. |
6. Results: Stable communication and accurate metering restored customer trust in ultrasonic flow meters.
After adopting the upgraded 2023 ultrasonic flow meter, the customer achieved the following significant results:
Zero communication failures : RS485 communication operates stably at 19,200 kb/s and other full-range baud rates, with real-time data transmission and no packet loss, completely solving the previous baud rate compatibility issues and meeting customers' needs for digital management and control of equipment.
Measurement exceeding expectations : The ±1.5% measurement accuracy fully covers the customer's industrial measurement requirements, providing accurate flow data in media environments with different temperatures and flow rates, providing a reliable basis for optimizing production processes.
Rebuilding Trust : The durability of the aluminum alloy casing and the stable performance of the equipment dispelled the customer's concerns about the ultrasonic flow meter, establishing their trust in our brand's technical strength and product reliability, laying the foundation for long-term cooperation.
In summary, the 2023 upgraded ultrasonic flow meter, through comprehensive upgrades to its communication module, metering performance, and hardware structure, not only solves the RS485 communication problems previously encountered by customers, but also becomes the preferred solution for industrial fluid metering scenarios with its accurate metering performance and reliable industrial-grade quality. Whether you are facing similar communication failures or have high requirements for the accuracy and stability of flow metering, this product can provide you with a one-stop reliable solution.
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