CKY-211 Anti-corrosion Level Transmitter Field Test: Performance in Strong Acid Environments

In extreme industrial environments such as strong acids and strong alkalis, the accuracy of level measurement and the durability of equipment are of critical importance. The CKY-211 anti-corrosion level transmitter adopts ceramic anti-corrosion technology and is specially designed for industries such as chemical processing and electroplating. This article provides an in-depth analysis of its sealing performance, measurement stability, and material corrosion resistance in concentrated sulfuric acid environments through field test data, offering key performance references for technical evaluators.

I. Core Advantages of Ceramic Anti-corrosion Technology

The CKY-211 anti-corrosion level transmitter uses advanced ceramic anti-corrosion technology, which offers stronger corrosion resistance compared with traditional stainless steel materials. Ceramic materials perform excellently in strong acid and strong alkali environments and can effectively resist the erosion of corrosive media such as concentrated sulfuric acid and hydrochloric acid. Field test data show that after continuous operation for 1000 hours in a 98% concentrated sulfuric acid environment, the surface of the ceramic diaphragm showed no obvious corrosion marks and still maintained high-precision measurement capability.

In addition, ceramic materials have a low coefficient of thermal expansion and can still maintain stable performance in high-temperature environments. Compared with the HD-136P high-temperature guided-pressure level transmitter, the CKY-211 performs even better under extreme temperature conditions, making it particularly suitable for high-temperature strong acid environments in chemical production.

II. Sealing Performance Test Analysis

Sealing performance is a key indicator for level transmitters operating in strong acid environments. We conducted strict sealing tests on the CKY-211:

• Tested continuously for 72 hours under a 5-meter water column pressure, with no leakage observed
• In a 98% concentrated sulfuric acid environment, the seals showed no swelling or deformation
• After temperature cycling tests (-20℃至150℃), the sealing performance remained stable

The test results show that the combination of the fluororubber sealing ring and ceramic diaphragm used in the CKY-211 achieves an IP68 protection rating, outperforming the sealing performance of similar products such as the KC803 anti-corrosion submersible level transmitter.

III. Measurement Accuracy and Stability Test

In strong acid environments, measurement accuracy is often affected by changes in the properties of the medium. We carried out 30 days of continuous monitoring on the CKY-211:

The data show that the CKY-211 has better long-term stability in strong acid environments than the YM-LSYW anti-corrosion submersible level transmitter, making it especially suitable for industrial scenarios requiring long-term stable monitoring.

IV. Comparison of Material Corrosion Resistance Performance

We selected several common anti-corrosion level transmitters on the market for comparative testing:

• CKY-211: ceramic diaphragm + 316L stainless steel housing, weight loss of 0.01g after 30 days
• HPT603: PTFE-coated diaphragm, weight loss of 0.15g after 30 days
• DMU09: Hastelloy diaphragm, weight loss of 0.08g after 30 days

The results indicate that the ceramic anti-corrosion technology used in the CKY-211 provides significantly better corrosion resistance in strong acid environments than other material solutions.

V. Installation and Maintenance Precautions

To ensure that the CKY-211 anti-corrosion level transmitter delivers optimal performance, it is recommended to note the following:

1. Avoid mechanical impact during installation to prevent damage to the ceramic diaphragm
2. Regularly inspect the condition of the seals, and it is recommended to conduct a comprehensive inspection every 6 months
3. When used in media containing solid particles, it is recommended to install a protective sleeve
4. The recommended calibration cycle is 12 months, which can be shortened to 6 months in extreme environments

Compared with the LHM-C3 anti-corrosion submersible level transmitter, the CKY-211 has a longer maintenance cycle, which can significantly reduce operating costs.

VI. Industry Application Cases

The CKY-211 anti-corrosion level transmitter has been successfully applied in multiple industrial fields:

• Electroplating industry: Continuous operation for 18 months in electroplating tanks containing chromic acid, with measurement error still maintained within ±0.15%
• Chemical industry: Achieved high-precision level control in 98% sulfuric acid storage tanks, replacing the original PT801Z anti-corrosion submersible level transmitter
• Environmental engineering: In wastewater treatment systems containing strong acids and strong alkalis, the service life exceeds 5 years

Summary and Recommendations

Field test data show that the CKY-211 anti-corrosion level transmitter performs excellently in strong acid environments. Its ceramic anti-corrosion technology, sealing performance, and measurement stability all reach an industry-leading level. For industrial scenarios requiring level measurement in highly corrosive media, the CKY-211 is an ideal choice.

As a professional high-tech enterprise, Xi'an Shenghongchuang Instrumentation Co., Ltd. has extensive experience in sensor R&D and can provide customers with customized level measurement solutions. If you would like to learn more about the technical parameters of the CKY-211 anti-corrosion level transmitter or detailed information on other models such as WJ2088T, please feel free to contact our technical team at any time.

Contact us now to obtain professional technical support and product solutions, providing reliable level measurement assurance for your industrial production.