The 8300-A11-B90 eddy current displacement sensor is widely used in various precision measurement and control scenarios due to its high sensitivity, strong anti-interference ability, and non-contact measurement. However, long-term use or improper operation often leads to various faults in the sensor, affecting production efficiency and measurement accuracy. This article will introduce in detail the common fault types and solutions of the 8300-A11-B90 eddy current displacement sensor to help users better maintain and use this sensor.

The 8300-A11-B90 eddy current displacement sensor is a non-contact measurement device based on the principle of electromagnetic induction, mainly used to measure parameters such as the position, distance or vibration of metal objects. It has the advantages of fast response speed, high accuracy, and good stability, and is widely used in machinery manufacturing, power equipment, aerospace, petrochemical and other fields. However, in actual use, due to the influence of factors such as environment, operation, and equipment aging, the sensor may have various faults, affecting its normal operation.

I. Common fault types and cause analysis

1. Probe damage

The probe is the core component of the 8300-A11-B90 eddy current displacement sensor. It is in direct contact with the object being measured and is susceptible to physical damage or wear. When the probe is damaged, the sensor will not be able to accurately measure the displacement, or even work properly.

The reasons for probe damage may include: strong mechanical impact on the probe, wear caused by long-term use, corrosion or oxidation on the surface of the object being measured, etc.

2. Loose connector

If the connector between the sensor probe and the extension cable, and the connector between the extension cable and the preamplifier, are loose or in poor contact, it will cause unstable signal transmission and affect the measurement accuracy.

The reasons for loose connectors may include: screws not tightened during installation, screws loosened due to long-term vibration, aging or corrosion of the connector, etc.

3. Extension cable failure

The extension cable is an important component connecting the probe and the preamplifier. If the cable is damaged, short-circuited or poorly grounded, it will cause signal interference or loss, affecting the normal operation of the sensor.

The reasons for extension cable failure may include: long-term mechanical wear, chemical corrosion, high temperature, etc.

4. Loose installation and fixation

If the sensor is not installed and fixed firmly, the relative position between the probe and the object being measured will change, thus affecting the measurement accuracy.

The reasons for loose installation may include: not tightening the screws according to the specified torque during installation, uneven installation surface, equipment vibration, etc.

5. Poor shield grounding

The signal of the eddy current displacement sensor 8300-A11-B90 is easily affected by external electromagnetic interference. If the shield grounding of the sensor is poor, interference signals will enter the signal loop, affecting the measurement accuracy and stability.

The reasons for poor shield grounding may include: the shielded cable is not properly grounded, the grounding wire is poorly contacted, the grounding resistance is too large, etc.

II. Solutions and suggestions

1. Replace the probe

When the probe is found to be damaged, the machine should be stopped immediately and replaced with a new probe. When replacing the probe, a probe with the same model and reliable quality as the original probe should be selected, and the correct installation steps should be followed.

2. Tighten the connector

Regularly check whether the connector of the sensor is loose. If it is loose, tighten it in time. When installing or removing the connector, special tools should be used and tightened according to the specified torque to avoid over-tightening or over-loosening.

3. Check shield grounding

Ensure that the shielded cable of the sensor 8300-A11-B90 is properly grounded and the grounding wire is in good contact. The grounding resistance should meet the requirements of relevant standards to avoid signal interference caused by poor grounding. At the same time, the reliability of the grounding system should be checked regularly, and any problems should be dealt with in time.

4. Reinstall the probe

For problems with loose installation, the machine should be stopped, the cover should be opened, and the fixed probe should be reinstalled. When installing, a flat installation surface should be selected, and the screws should be tightened according to the specified torque. At the same time, the vibration of the equipment should be considered and necessary vibration reduction measures should be taken.

5. Check the line

Regularly check whether the signal line of the 8300-A11-B90 sensor is damaged, short-circuited or poorly grounded. If there is a problem, the signal line should be replaced or repaired in time, and the shielding and grounding of the signal line should be ensured to be good. At the same time, the signal line should be avoided from being arranged close to or parallel to other strong electromagnetic interference sources.

III. Maintenance and maintenance recommendations

In order to avoid 8300-A11-B90 eddy current displacement sensor failures, in addition to promptly dealing with the above common problems, daily maintenance and maintenance work should also be strengthened. Specific recommendations are as follows:

1. Regular inspection: Regularly inspect the appearance of the sensor to ensure that the probe, connector, cable and other components are intact. At the same time, check whether the sensor is firmly installed and fixed and the shielding and grounding are good.

2. Cleaning and maintenance: Clean the sensor surface and probe regularly to avoid dust, oil and other impurities affecting the measurement accuracy. When cleaning, use a clean soft cloth or special cleaning agent, and avoid using highly corrosive chemical reagents.

3. Anti-vibration measures: For sensors installed on equipment with large vibration, vibration reduction measures should be taken, such as installing vibration reduction pads, using anti-vibration glue, etc., to reduce the impact of vibration on the sensor.

4. Environmental control: Try to install the sensor in a place with relatively stable environmental conditions such as temperature and humidity to avoid the impact of environmental factors such as high temperature, low temperature, and humidity on the sensor. At the same time, the sensor should be protected from damage by natural environments such as direct sunlight and rain.

In addition to the above solutions to common faults, the daily use of the sensor 8300-A11-B90 should also strengthen maintenance and care, which can extend the service life of the sensor and reduce the occurrence of faults.

When looking for high-quality, reliable eddy current sensor, YOYIK is undoubtedly a choice worth considering. The company specializes in providing a variety of power equipment including steam turbine accessories, and has won wide acclaim for its high-quality products and services. For more information or inquiries, please contact the customer service below:

E-mail: sales@yoyik.com
Tel: +86-838-2226655
Whatsapp: +86-13618105229