Technical Specifications

FAQ

1. What is the main function of this proximity probe?

This probe is designed for continuous, non-contact measurement of shaft vibration and displacement in rotating machinery. It works as part of a condition monitoring system, providing real-time data on shaft position changes. This information is critical for detecting early signs of imbalance, misalignment, mechanical looseness, or other developing faults that could lead to equipment failure if not addressed in time.

2. How does eddy current technology work in this probe?

The probe generates a high-frequency electromagnetic field at its sensing tip. When a conductive metal target, such as a rotating shaft, moves within this field, it induces eddy currents on the surface. These currents alter the impedance of the probe coil, producing a measurable electrical signal proportional to the distance between the probe and the shaft. This allows highly accurate, non-contact measurement of vibration and position changes even under harsh industrial conditions.

3. Which types of rotating equipment typically use this probe?

This probe is commonly installed on critical rotating machinery such as steam turbines, gas turbines, compressors, pumps, and large electric motors. These machines require continuous condition monitoring because even small deviations in shaft behavior can indicate developing mechanical issues. The probe provides essential input to protection and diagnostic systems that help prevent catastrophic failures and unplanned downtime.

4. What are the key installation requirements?

Proper installation is essential for accurate measurement. The probe must be positioned at a precise gap distance from the target shaft surface, aligned correctly to avoid angular misreadings, and securely mounted to prevent movement or vibration of the probe itself. The mounting surface must be stable, and the target area on the shaft should be clean, smooth, and free from contamination or irregular surface defects. Any deviation in installation setup can directly affect measurement accuracy.

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

Incorrect installation can lead to unstable or inaccurate signals, including signal drift, noisy output, incorrect vibration readings, or false alarm triggers. In more severe cases, improper alignment or incorrect gap setting may result in complete loss of signal or misinterpretation of machine condition. This can compromise the reliability of the entire monitoring system and may lead to incorrect maintenance decisions.

6. Is calibration required after installation?

Yes, calibration is required after installation to ensure the probe output correctly corresponds to actual physical displacement. The system must be configured based on the specific shaft material, surface characteristics, and operating conditions. Proper calibration ensures that the voltage output from the probe accurately represents vibration amplitude and shaft position, which is essential for reliable condition monitoring and protection logic.

7. How do environmental conditions affect probe performance?

Environmental factors such as temperature variation, oil contamination, moisture, electromagnetic interference, and mechanical vibration can all influence signal stability. While the probe is designed for industrial environments, excessive contamination or unstable mounting conditions can degrade measurement quality. Proper shielding, stable mechanical installation, and controlled environmental conditions help maintain long-term signal accuracy and reliability.

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

To ensure long-term reliability, it is important to regularly inspect probe mounting stability, verify that the cable is not under mechanical stress, and check connector integrity for signs of corrosion or loosening. Keeping the installation area clean and free of oil buildup or debris also helps maintain signal quality. Periodic system checks and verification of signal consistency under normal operating conditions are recommended to detect early signs of degradation before they affect system performance.