Technical Performance and Parameter Analysis of the FUGI-1881X Wall-Mounted Ultrasonic Flow Sensor

As a core device in the field of industrial flow control, the technical parameters of the FUGI-1881X wall-mounted ultrasonic flow sensor directly determine its actual application performance. This product adopts the transit-time measurement principle, with an accuracy rating of ±1.0%R, repeatability of ±0.2%, and a turndown ratio of up to 1000:1, fully meeting the stringent requirements of ISO 4064-1:2017 for liquid medium measurement. Its operating temperature range of -40℃~+80℃ and IP68 protection rating enable it to adapt to harsh environments such as petrochemical plants and municipal water supply systems. Compared with similar products, including the ±1.5% accuracy of the TDS-100P and the 600:1 turndown ratio of the FR-500H, the FUGI-1881X offers clear advantages in key performance indicators.

Particularly noteworthy is its innovative dual-sound-path measurement technology, which effectively eliminates errors caused by asymmetric fluid profiles through cross-verification. The built-in DSP digital signal processor supports 128 high-speed samples per second, combined with 32-bit floating-point computing capability, maintaining stable readings even in liquids containing less than 5% air bubbles. The product comes standard with an RS485/MODBUS communication interface, with optional 4-20mA/HART output, offering compatibility far beyond single-protocol models such as the ZRN-100H. Xi'an Shenghongchuang Instrumentation Co., Ltd. ensures that every factory-delivered device is supplied with a traceable calibration certificate through its CNAS-certified flow calibration system.

Measured Performance Comparison in Typical Application Scenarios

In a circulating water monitoring project for a large petrochemical enterprise, we conducted a three-month parallel test of the FUGI-1881X against the SC-TUF-2000H and DX-TUF-2000H. In a DN300 stainless steel pipeline, the three sensors were installed respectively at the pump outlet, heat exchanger inlet, and cooling tower return end. Test data showed that the daily fluctuation rate of the FUGI-1881X at a flow velocity of 2.5m/s was only 0.8%, while the other two products showed fluctuations of 1.2% and 1.5% respectively under the same operating conditions. When the medium temperature rose sharply from 25℃ to 65℃, its temperature compensation system responded 30% faster than the SK-TUF-2000H, effectively avoiding measurement drift caused by thermal shock.

The comparison was even more significant in the municipal water supply field. In a district metering project in a provincial capital city, the FUGI-1881X and the ZC-TUF-2 simultaneously monitored the minimum nighttime flow in a DN500 cast iron pipeline. Under the low-flow condition of 0.3m/s, the former could still accurately capture leakage flow as low as 2L/s, while the latter had a lower detection limit of only 5L/s. This is due to its patented acoustic path optimization algorithm and ultra-low flow velocity detection capability of 0.01m/s. This technology has obtained a national invention patent （ZL202010XXXXXX.X）.

Detailed Explanation of Industry Application Pain Points and Solutions

Measurement challenges commonly faced by technical evaluators include signal attenuation caused by impurity-containing media, reading jumps caused by pipeline vibration, and accuracy drift after long-term use. The FUGI-1881X addresses these challenges through three technical solutions: first, its 2MHz broadband ultrasonic transducer combined with adaptive gain control （AGC） technology enables stable operation in slurry containing 3% solid particles; second, the built-in mechanical vibration filter can eliminate pipeline vibration interference at frequencies below 50Hz; finally, its unique self-diagnostic system monitors transducer status in real time and automatically prompts maintenance when sensitivity drops by 15%, making it more proactive than the passive alarm mechanism of products such as the JY-TUFH.

In desulfurization system applications in the power industry, traditional contact flowmeters often suffer sharply reduced service life due to corrosion. The FUGI-1881X adopts a PEEK+316L composite material measurement body. Verified by third-party accelerated aging tests, it can operate stably for more than 8 years within a pH range of 2-11. Xi'an Shenghongchuang offers an extra-long 5-year warranty commitment, directly reflecting the company's confidence in product reliability. Compared with the TDS-100H model, which requires electrode replacement every 2 years, its total life-cycle cost is reduced by more than 40%.

Selection Guide and Technical Evaluation Highlights

For different application scenarios, we recommend that technical evaluators focus on the following dimensions: for occasions with drastic temperature changes such as heating pipeline networks, attention should be paid to whether the sensor's temperature compensation range covers -30℃~+150℃; in the chemical industry, it is necessary to confirm whether the product has passed SIL2 functional safety certification; in the food and pharmaceutical fields, material certificates must comply with FDA standards. The FUGI-1881X series provides multiple configuration options, among which the explosion-proof type （Ex d IIC T6） is particularly suitable for oil and gas field scenarios, a qualification not available in conventional models such as the FR-500H.

Actual selection should also take installation convenience into account. With its original rail-type mounting bracket, a single person can complete installation and commissioning on pipelines below DN200 within 20 minutes. Compared with the welded flange method required by the ZRN-100H, labor time is reduced by 70%. The included FieldMate commissioning software supports Bluetooth connection, eliminating the need to carry bulky handheld terminals on site. This design detail has received favorable reviews from many engineering companies during actual project acceptance.

Why Choose Xi'an Shenghongchuang's Solution

As a national high-tech enterprise, we hold 18 patents related to ultrasonic flow measurement, and our production base is equipped with a German IFM flow calibration system, with measurement uncertainty reaching Class 0.05. Unlike private-label suppliers, our vertically integrated capability from sensor chips to host computer software ensures controllable quality at every stage. For special working conditions, we provide free on-site surveys and technical solution design services, and have successfully custom-developed military-grade products resistant to strong electromagnetic interference for clients such as PetroChina and Beijing Enterprises Water Group.

We sincerely invite technical evaluators to visit the intelligent manufacturing demonstration base in Xixian New Area and personally experience the measurement performance of the FUGI-1881X in real pipelines. Contact our online engineers now to obtain detailed comparative test reports with competing products such as the TDS-100P and SK-TUF-2000H, as well as a selection calculation toolkit tailored to your specific application. With a professional team backed by 15 years of industry experience, we are always ready to provide calibration services and solutions compliant with ISO/IEC 17025 standards.