Analysis of common faults of CZL-401 weighing sensor: 5 major causes of inaccurate force measurement in reaction kettles

In the reaction kettle weighing system, the inaccurate force measurement issue of the CZL-401 weighing sensor often troubles technical personnel. This article provides an in-depth analysis of 5 typical faults of column-type pressure sensors such as PWHE, TJH series, and LZ-GF3, helping you quickly identify the root causes of abnormal force measurement in mixing plants and improve equipment operating accuracy and stability.

1. Inaccurate force measurement caused by sensor overload

The CZL-401 weighing sensor is designed with its rated range. When the weight of materials in the reaction kettle exceeds the sensor's maximum range, the sensor will be overloaded. Overloading not only causes inaccurate force measurement, but may also permanently damage the internal strain gauge structure of the sensor.

Solution:

• Select a sensor with an appropriate range, and it is recommended that the working load be between 60%-80% of the sensor range
• Regularly check the material weight in the reaction kettle to avoid overload
• Consider using sensors with overload protection, such as the LZ-ZS3 series

2. Impact of ambient temperature changes

Large changes in the working environment temperature of the reaction kettle are a common cause of inaccurate force measurement of the CZL-401 weighing sensor. Temperature changes can cause expansion or contraction of the sensor's metal materials, thereby affecting the resistance value of the strain gauge.

Professional recommendations:

• Select sensors with good temperature compensation performance, such as the TJH-12 series
• Add thermal insulation measures at the sensor installation position
• Carry out temperature calibration regularly

3. Mechanical installation issues

Incorrect installation methods are one of the main causes of inaccurate force measurement in column-type pressure sensors such as PWHE and LLBHT. Common issues include:

4. Electrical interference issues

Reaction kettle mixing plants usually have a large amount of electrical equipment, which may interfere with the signal transmission of weighing sensors such as NOS-Z209 and AC-LC3, resulting in fluctuating or inaccurate force measurement data.

Anti-interference measures:

• Use shielded cables to connect the sensor
• Route signal lines away from power lines
• Add filters at the signal input end
• Select digital output sensors with strong anti-interference capability

5. Sensor aging or damage

After long-term use, weighing sensors such as LZ-GF3 and TJH-3 may show the following aging problems:

• Strain gauge fatigue
• Reduced sealing performance leading to internal moisture ingress
• Mechanical structure loosening or deformation

Maintenance recommendations:

• Establish a regular inspection system
• Pay attention to observing changes in the sensor appearance
• Replace sensors that have reached their service life in a timely manner

Summary and recommendations

Inaccurate force measurement in reaction kettle weighing systems is often caused by multiple factors together. As a professional supplier of flow control equipment, Xi'an Shenghongchuang Instrument Co., Ltd. recommends:

1. Select suitable sensor models, such as professional-grade products like CZL-401 and LZ-ZS1
2. Carry out installation and maintenance strictly in accordance with specifications
3. Establish a complete inspection and calibration system

If you would like to learn more about application solutions for column-type pressure sensors in reaction kettle mixing plants, please feel free to contact our technical team for professional support.

Contact us now: 029-xxxxxxx | www.shenghongchuang.com