AC-LC3 Weighing Sensor Maintenance Guide: 5 Tips to Extend Service Life

As the core component of industrial weighing systems, the performance of the AC-LC3 weighing sensor directly affects the measurement accuracy of equipment such as reactors and mixing plants. This article, summarized by the expert team of Xi'an Shenghongchuang Instrumentation Co., Ltd., presents 5 key maintenance tips to help technical evaluation personnel effectively extend sensor service life and reduce equipment failure rates.

1. Regular Cleaning and Dust Protection

In industrial environments, contaminants such as dust and oil stains can easily accumulate on the surface of the AC-LC3 weighing sensor, affecting its measurement accuracy. It is recommended to use a soft brush every week to remove dust from the sensor surface, and use anhydrous ethanol to wipe the sensitive component area. For high-temperature and high-humidity environments such as reactor mixing plants, a protective cover can be added (such as stainless steel dust cover LZ-ZS3 series accessories) to isolate corrosive gases.

Special note: The power supply must be disconnected during cleaning, and sharp tools should be avoided when scraping the strain gauge area. If aging of the sealing ring of the PWHE series sensor is found, it should be replaced immediately (refer to ISO 9001:2015 equipment maintenance standards).

2. Load Protection and Overload Prevention

Technical evaluation data shows that more than 70% of TJH-12 sensor failures are caused by instantaneous overload. It is recommended to take the following measures:

• Install a mechanical limit device to ensure that the load does not exceed 120% of the rated capacity of AC-LC3
• Use the CZL-401 overload protection module in parallel in the reactor weighing system
• Regularly calibrate the zero point of the force sensor, and inspect for abnormal mechanical structure when drift exceeds 0.5%FS

Experiments by Xi'an Shenghongchuang have shown that using it together with the LLBHT buffer can improve the sensor's impact resistance performance by 40%.

3. Environmental Adaptability Optimization

Different industrial scenarios have differentiated requirements for weighing sensors such as LZ-GF3:

Special reminder: In areas with strong electromagnetic interference, shielded cables should be used and grounding resistance should be ensured to be ＜4Ω (in compliance with GB/T 7551-2008 standard).

4. System Integration and Signal Processing

The compatibility between AC-LC3 and the transmitter directly affects the stability of the measurement system:

1. Use a six-wire connection method to reduce the impact of line resistance
2. Check monthly whether the filter parameters of the LZ-ZS3 transmitter match actual working conditions
3. It is recommended to use digital instruments (such as Shenghongchuang SC-900 series) instead of analog pointer meters

Case: A cement plant mixing station reduced weighing error from ±1.2% to ±0.3% by upgrading to a PWHE digital sensor system.

5. Preventive Maintenance Plan

Establishing a three-dimensional maintenance system can extend the service life of sensors such as CZL-401 by 3-5 years:

• Daily Maintenance: Record the zero output value change curve
• Quarterly Maintenance: Retighten mounting bolts (torque controlled at 5N·m ±10%)
• Annual Overhaul: Return to the manufacturer for bridge resistance testing (accuracy up to 0.01Ω)

Note: Shenghongchuang provides free sensor health inspection services and can issue inspection reports compliant with ISO/IEC 17025 standards.

Summary and Professional Support

By implementing the above 5 key measures, the reliability of weighing sensors such as AC-LC3 and TJH-12 under harsh working conditions such as reactors and mixing plants can be significantly improved. As a leading force sensor manufacturer in Northwest China, Xi'an Shenghongchuang Instrumentation Co., Ltd. provides full life-cycle services from selection guidance to lifetime maintenance.

Get a customized solution now:Call 029-8856XXXX or visit www.sensor-tech.cn, and our engineering team will provide you with professional support compliant with GB/T 7551-2008 standard.