Technical Specifications

FAQ

1. What is the main function of this probe in a rotating machinery monitoring system?

This probe is used for continuous, non-contact measurement of shaft vibration and axial displacement in rotating machinery. It converts mechanical shaft movement into electrical signals that are processed by a monitoring system. These signals help operators evaluate machine health, detect early-stage mechanical issues, and support protection functions that prevent equipment failure.

2. How does eddy current technology provide accurate measurement?

The probe generates a high-frequency electromagnetic field at its sensing tip. When a conductive shaft enters this field, eddy currents are induced on the surface of the shaft. These currents change the electrical characteristics of the probe coil, producing a voltage output proportional to the distance between the probe and the shaft. This enables precise and real-time displacement measurement without physical contact.

3. What types of equipment commonly use this probe?

This probe is typically used on critical rotating machinery such as steam turbines, gas turbines, centrifugal compressors, large pumps, and industrial motors. These machines require continuous vibration and position monitoring because even small mechanical changes can indicate developing faults like imbalance, misalignment, or bearing wear.

4. What are the key installation requirements for proper operation?

Correct installation requires precise positioning of the probe relative to the shaft surface, maintaining the specified air gap, and ensuring rigid mechanical mounting. The probe must be securely fixed to avoid movement during operation. The shaft surface should be clean, smooth, and free from oil, rust, or surface defects to ensure stable signal output and measurement accuracy.

5. What problems can occur if the probe is installed incorrectly?

Improper installation may lead to unstable signals, incorrect vibration readings, increased noise, or false alarms. If alignment or gap settings are incorrect, the system may produce inaccurate measurements. In severe cases, the probe may fail to detect shaft movement properly, reducing the reliability of the entire monitoring system.

6. Is calibration required after installation and why?

Yes, calibration is required after installation. It ensures that the probe output accurately corresponds to actual physical shaft displacement. Calibration involves setting reference gap values and verifying system response. Without proper calibration, measurement accuracy may be compromised, leading to incorrect diagnostics or maintenance decisions.

7. How do environmental conditions affect probe performance?

Environmental factors such as temperature changes, oil mist, moisture, electromagnetic interference, and mechanical vibration can all affect signal stability. Although the probe is designed for industrial environments, harsh conditions may degrade measurement quality. Proper shielding, stable mounting, and clean installation conditions help maintain long-term accuracy.

8. What maintenance practices help extend service life and reliability?

Regular inspection of probe mounting stability, cable condition, and connector integrity is recommended. It is important to avoid mechanical stress on the probe and prevent contamination from oil or debris. Periodic system checks and signal verification also help detect early degradation and ensure reliable long-term operation.