Technical Specifications

FAQ

1. What is the primary function of this probe in a monitoring system?

This probe is used for non-contact measurement of shaft vibration and axial displacement in rotating machinery. It continuously tracks shaft movement and converts mechanical displacement into electrical signals. These signals are then used by condition monitoring systems to evaluate machine health, detect early mechanical issues, and support protection logic for critical industrial equipment.

2. How does eddy current technology enable accurate measurement?

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

3. What types of machines typically use this probe?

This probe is commonly installed on high-value rotating equipment such as steam turbines, gas turbines, compressors, centrifugal pumps, and large electric motors. These machines require continuous monitoring because even small changes in shaft behavior can indicate developing faults like imbalance, misalignment, or bearing degradation.

4. What are the key installation requirements?

Correct installation is critical for accurate performance. The probe must be positioned at a precise gap distance from the shaft surface and firmly secured to prevent movement during operation. Alignment must be accurate to avoid angular measurement errors. The shaft surface should be clean, smooth, and free from oil deposits, corrosion, or mechanical damage to ensure stable signal output.

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

Incorrect installation may lead to unstable signals, measurement drift, increased noise, or false alarm triggers. If the gap is incorrect or alignment is poor, the system may produce inaccurate vibration readings. In severe cases, the probe may fail to detect shaft movement correctly, reducing the reliability of the entire monitoring system.

6. Is calibration required after installation?

Yes, calibration is required after installation. It ensures that the probe output accurately corresponds to actual shaft displacement. Calibration typically involves setting the reference gap, configuring system sensitivity, and verifying linear output response. Without proper calibration, measurement accuracy and diagnostic reliability may be significantly affected.

7. How do environmental conditions affect probe performance?

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

8. What maintenance practices improve long-term 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 signal verification and system checks also help ensure early detection of potential issues and extend operational lifespan.