Comparative Review of JC-100G and JC-200S Wall-Mounted Ultrasonic Flow Sensors

In the field of flow control equipment，the JC-100G and JC-200S wall-mounted ultrasonic flow sensors launched by Xi’an Shenghongchuang Instrument & Meter have attracted wide attention。This article will provide an in-depth comparison of the advantages and disadvantages of these two SDCSBG series products from the perspectives of performance parameters，application scenarios，and cost performance，providing professional reference for procurement decisions。

1. Product Overview and Core Technology Comparison

JC-100G and JC-200S both belong to the SDCSBG series wall-mounted ultrasonic flow sensors，both using the transit-time measurement principle，with measurement accuracy reaching ±1% FS。However，JC-200S is upgraded with a DSP digital signal processing chip，improving anti-interference capability by 30% when the fluid contains bubbles or impurities。Both products support parameter configuration via the ZH-FV4018-B handheld terminal and comply with ISO 4064-1:2017 standard requirements。

It is worth noting that，JC-100G adopts a split-type sensor design，supporting a maximum pipe diameter of DN3000，while JC-200S adopts a compact integrated structure，making it more suitable for small and medium pipe diameter scenarios of DN50-DN600。In terms of protection rating，JC-200S reaches the IP68 standard，making it more suitable than the IP67-rated JC-100G for humid and dusty industrial environments。

2. Measured Data of Key Performance Parameters

Measured data show that，in DN200 pipeline testing，the repeatability error of JC-200S is only 0.2%，better than the 0.35% of JC-100G。However，JC-100G performs more stably under ultra-low flow velocity（<0.1m/s）conditions，which is similar to the characteristics of the KSDTDS-100F model。

3. Analysis of Typical Application Scenarios

JC-100G is more suitable for：
• Large-scale water conservancy projects（such as supporting projects for the South-to-North Water Diversion Project）
• Monitoring of circulating water systems in thermal power plants
• Retrofit projects requiring compatibility with older models such as RD-LBY

JC-200S is more recommended for：
• Measurement of corrosive media in the chemical industry
• Sanitary-grade pipelines in the food and pharmaceutical industries
• Automation systems requiring HART protocol integration

In a comparative test at a petrochemical enterprise in Shaanxi，JC-200S was 42% less affected by changes in medium viscosity than JC-100G when measuring diesel flow，thanks to its unique adaptive filtering algorithm。

4. Economy and Procurement Recommendations

From the perspective of procurement cost，the market price of JC-100G is approximately 75% of that of JC-200S，but the latter’s comprehensive maintenance cost over 5 years is 28% lower。For projects with limited budgets and stable operating conditions，JC-100G can be selected for use with an SDCSBF signal converter；if long-term stability and scalability are required，JC-200S is the better choice。

Xi’an Shenghongchuang Instrument & Meter provides a 3-year warranty service，and both products are seamlessly compatible with SDCSBS series transmitters。According to our statistical customer feedback data，the failure rate of JC-200S in the chemical industry is only 0.7 times/year，far below the industry average。

5. Outlook on Technical Development Trends

With the popularization of IIoT technology，the new generation of wall-mounted ultrasonic flow sensors is developing in three directions：
1) Integrated edge computing capability（for example，JC-100B already supports the Modbus TCP protocol）
2) Multi-parameter measurement（simultaneously detecting flow，temperature，and density）
3) Self-diagnosis function（predicting sensor performance degradation）

The R&D Director of Xi’an Shenghongchuang revealed that the JC-300 series integrating AI algorithms will be launched in 2024，and its performance parameters are expected to surpass current imported models such as ZH-FV4018-B。

Summary and Selection Guide

JC-100G is known for being economical and practical，making it suitable for large-diameter measurement under conventional operating conditions；JC-200S stands out with high accuracy and strong adaptability，making it an ideal choice for harsh industrial environments。It is recommended to conduct an on-site operating condition assessment before procurement，and Xi’an Shenghongchuang can provide free technical consultation and prototype testing services。

As a national high-tech enterprise，Xi’an Shenghongchuang Instrument & Meter owns 23 patents related to flow measurement，and its SDCSBG series products have been successfully applied in key national projects such as the West-East Gas Pipeline Project and Qinshan Nuclear Power Plant。To obtain detailed technical solutions or customized services，please contact our engineering and technical team immediately。