Bently Nevada 330905-00-25-05-02-05 — 3300 NSv Proximity Probe

The Bently Nevada 330905-00-25-05-02-05 is a 3300 NSv (Narrow Side View) proximity probe specifically engineered for applications requiring close-range shaft vibration and position monitoring where space constraints limit probe installation. Designed for use in conjunction with compatible NSv extension cables and drivers, this 0.5-meter proximity probe offers reliable, high-precision measurement of shaft dynamic motion, making it particularly suited for small or tight clearances in machines like gearboxes, small turbines, or compact rotating equipment.

The 330905 series leverages non-contact eddy current sensing technology to detect conductive surface displacement, offering non-intrusive, continuous monitoring without physical contact. Its rugged stainless-steel construction, shielded cabling, and compliance with API 670 standards ensure exceptional performance in industrial environments such as oil and gas, petrochemicals, and power generation. With a shipping weight of 2 kg, the product is robust and carefully packaged to prevent transport damage.

Product Parameters

Product Applications

The 330905-00-25-05-02-05 proximity probe is designed for high-accuracy, real-time monitoring of shaft vibration and relative displacement in compact or lightly loaded rotating machinery. Applications include:

• Small Steam & Gas Turbines: Precise monitoring of shaft position in turbines with tight radial clearances.

• Gearboxes: Detects gear misalignment, wear, and early fault conditions in constrained environments.

• Turboexpanders: Used in cryogenic and petrochemical systems where small shaft sizes require NSv geometry.

• Compressors: Supports condition-based maintenance by measuring shaft behavior under load.

• Pumps and Motors: Monitors dynamic movement in compact or vertically mounted rotating machinery.

• OEM Equipment: Ideal for equipment manufacturers needing compact sensor integration without compromising accuracy.

Product Advantages

• Compact NSv Design – Enables installation in limited-space applications where standard probes cannot be used.

• High Sensitivity and Accuracy – Offers a tight linear range and accurate measurement resolution for small displacement values.

• Non-Contact Sensing – Eliminates mechanical wear while providing continuous, real-time monitoring.

• Stainless Steel Housing – Withstands harsh chemical, thermal, and vibration environments.

• Seamless Integration – Fully compatible with Bently Nevada 3300 NSv system components including drivers and extension cables.

• Metric Threading – Simplifies installation in systems following metric engineering standards.

• API 670 Compliance – Meets globally recognized standards for machine protection and reliability.

• Flexible Cable Configurations – Supports different cable lengths and connector styles based on application needs.

• Hermetically Sealed Construction – Protects internal components from moisture and particulates, improving MTBF.

• Global Industry Acceptance – Trusted by OEMs and end users in oil & gas, power, and process industries worldwide.

Frequently Asked Questions (FAQ)

Q1: What is the primary use of the 330905-00-25-05-02-05 probe?

A1: It is used to monitor the vibration and shaft displacement in compact rotating machinery where standard proximity probes cannot fit.

Q2: What is the length of the probe and its weight when shipped?

A2: The probe has a total length of 0.5 meters and a shipping weight of 2.0 kg.

Q3: Can this probe be used in high-temperature environments?

A3: Yes, it operates effectively in environments up to +175°C.

Q4: Is this probe compliant with API 670?

A4: Yes, it meets the API 670 standard for vibration monitoring in rotating machinery.

Q5: What equipment is this probe commonly used with?

A5: It’s widely used with turbines, gearboxes, turboexpanders, and compact motors.

Q6: How does the NSv design differ from standard probes?

A6: The NSv design allows side-view sensing in limited spaces, offering a narrower profile without sacrificing accuracy.

Q7: Is this probe compatible with older Bently Nevada systems?

A7: It is compatible with the 3300 NSv system but may require matching drivers and cables.

Q8: How is the probe mounted to equipment?

A8: It features an M8 x 1.0 threaded body for secure, precise mounting into custom or standard probe holders.

Q9: What kind of output signal does this probe generate?

A9: It produces a voltage output proportional to the shaft’s displacement from the probe tip, typically 7.87 mV/μm.

Q10: Can the probe be used in hazardous environments?

A10: With proper installation and certification, it can be used in classified hazardous zones.