In food-grade operating conditions, the JX-502 stainless steel liquid level sensor has become the first choice for technical evaluators thanks to its outstanding corrosion resistance and high-precision measurement. As a straight-rod insertion-type level transmitter, it not only meets strict hygiene standards, but also delivers stable and reliable performance, ensuring the safety and efficiency of production processes.

I. Definition and Overview: Core Technical Features of JX-502

The JX-502 stainless steel liquid level sensor is a straight-rod insertion-type level transmitter specially designed for industries with high hygiene standards such as food and pharmaceuticals. Its core advantage lies in the use of 316L stainless steel material, with an electropolished finish and a surface roughness of ≤0.8μm, fully complying with FDA and EHEDG certification requirements. The sensor integrates a high-precision silicon piezoresistive sensing element, with measurement accuracy up to ±0.1%FS and an operating temperature range of -20℃~85℃, enabling it to adapt to the extreme conditions of CIP/SIP cleaning processes. Compared with conventional models such as SP-813 or ZC-182, the JX-502 adopts a triple O-ring structure for sealing, achieving a protection rating of IP68 and completely eliminating the risk of medium penetration.

II. Industry Background: Compliance Challenges for Food-Grade Sensors

According to the GB 4806.1-2016 national food safety standard, equipment materials that come into direct contact with food must meet migration limit requirements. The JX-502 from Xi'an Shenghongchuang Instrumentation Co., Ltd. has passed SGS testing, with heavy metal migration below 0.01mg/kg, far exceeding industry standards. Market research shows that in 2023, demand for hygienic-grade sensors in the food processing sector grew by 23%, among which 67% of technical evaluators listed material corrosion resistance as the primary consideration. In contrast, traditional models such as PCM261 or the BUY series, which use 304 stainless steel, are prone to pitting corrosion in acidic media, with an average service life only 60% of that of the JX-502.

III. Technical Performance Comparison: Why Does JX-502 Stand Out?

IV. Application Scenario Analysis: From Milk Sterilization to Soy Sauce Fermentation

In liquid food processing, the JX-502 demonstrates unique advantages. A dairy enterprise used this sensor to monitor the liquid level in a UHT sterilization tank, and three years of operating data showed that its drift was only 0.05%/year, while the comparison group model QKB-02 had an annual drift of 0.2%. In the high-salt environment of a soy sauce fermentation workshop, the Hastelloy diaphragm of the JX-502 effectively resists chloride ion corrosion, reducing the failure rate by 82% compared with JYB-KO-Y1. Xi'an Shenghongchuang's engineering team can also customize process connection methods according to customer requirements, providing multiple hygienic-grade connection options such as flanges, clamps, and threads.

V. Procurement Guide: Key Decision Points for Technical Evaluators

When selecting a food-grade liquid level sensor, it is recommended to focus on verifying the following parameters: 1) whether the material certificate includes a 3.1 material report; 2) whether the surface treatment process can provide an Ra value inspection report; 3) whether the sealing material uses EPDM or fluororubber. For complex operating conditions such as PT311-L3-0.5m-0.25-T2-H4-F1-B1-C3-D3-M3, it is recommended to give priority to the JX-502-TC derivative model with temperature compensation. Xi'an Shenghongchuang provides free sample testing services, allowing customers to verify the sensor's performance in real media on site.

VI. Why Choose Xi'an Shenghongchuang?

As a national high-tech enterprise, we hold 12 patents related to level measurement, and our production base has passed ISO 13485 medical device quality management system certification. All sensors leaving the factory undergo 72-hour aging tests and 100% pressure cycle inspection, and come with an ultra-long 3-year warranty. In response to urgent needs in the food industry, we promise 24-hour delivery service in the Yangtze River Delta region. Contact our technical consultants now to obtain customized solutions: 400-800-XXXX or visit www.sensor-tech.com.cn to get the complete JX-502 technical manual.