I、Product Definition and Technical Principles

As a core product of Xi'an Shenghong Chuang Instrument Co., Ltd.，the RD-LBYB wall-mounted ultrasonic flow sensor adopts the transit-time ultrasonic measurement principle，accurately calculating fluid velocity by calculating the propagation time difference of ultrasonic waves upstream and downstream。This device complies with the ISO 6416 international standard，and is especially suitable for liquid flow monitoring in DN15-DN600 pipelines，delivering excellent performance in petrochemical，municipal water supply，HVAC and other fields。Its innovative signal processing algorithm can effectively suppress interference factors such as pipeline vibration and bubbles，ensuring a measurement accuracy of ±0.5% even under complex operating conditions。

II、Key Performance Test Data

A 72-hour continuous test of the RD-LBYB under laboratory conditions shows：within the flow velocity range of 0.3-10m/s，the repeatability error is ≤0.2%，and the temperature drift coefficient is <0.01%/℃。Compared with the RD-LBYS model in the same series，its electromagnetic interference immunity is improved by 40%，reaching the EN 61000-6-4 industrial-grade EMC standard。In actual operating condition tests，when the solid content of the medium is ≤5%，the measurement deviation is stably controlled within ±0.8%，far exceeding the industry average of ±1.5% for similar UFM-2000 sensors。The built-in self-diagnosis function can monitor the sensor status in real time，preventing measurement failure caused by probe contamination。

III、Horizontal Comparison of Products in the Same Series

IV、Analysis of Typical Application Scenarios

In the olefin transportation pipeline of a large petrochemical enterprise in Shaanxi，the RD-LBYB successfully replaced the traditional turbine flowmeter，solving the problem of mechanical wear caused by high-viscosity media。Its non-contact measurement characteristics extend the maintenance cycle from 3 months to 2 years，saving more than 120,000 yuan in annual maintenance costs。Another typical case is the Xi'an Metro HVAC system，where a distributed monitoring network was built by deploying 12 LCZ-803DB sensors，realizing real-time upload of energy consumption data to the BAS system，helping the operator accurately regulate damper opening，with a comprehensive energy-saving rate of 18%。

V、Selection and Installation Guide

When selecting a wall-mounted ultrasonic flow sensor，key factors to consider include：medium conductivity（>5μS/cm），pipeline material（steel/cast iron requires special calibration），and straight pipe section requirements（upstream 10D/downstream 5D）。The RD-LBYB series offers both split-type and integrated installation methods，among which the split-type transmitter can be wired up to 50 meters away from the probe。It is recommended to prioritize the HND-100 model for measuring corrosive liquids，as its Teflon probe can withstand strong acid and alkali environments with pH1-14。During installation，attention should be paid to avoiding the impact of pipeline stress generated by welded flanges on measurement accuracy。

VI、Why Choose Shenghong Chuang

As a national high-tech enterprise，Xi'an Shenghong Chuang owns 20 patents related to ultrasonic measurement，and all products have passed CE and RoHS certifications。We provide：①72-hour responsive technical support；②on-site calibration services（including third-party certification reports）；③customized software development interfaces。Typical customers include leading enterprises such as Yanchang Petroleum and Shaangu Power，with more than 3000 ultrasonic flow devices delivered in total。Contact us now to receive the 《Industrial Flow Measurement White Paper》 and a free operating condition assessment service，and our professional technical team is always ready to answer your selection questions about the RD-LBYB series，LCZ-803C and other models。