Precision Vibration Monitoring: Bently Nevada 3300 NSv Proximity Probe

Measurement & Performance

• ▶ Linear Range: 1.5 mm (60 mils), spanning from 0.25 mm to 1.75 mm from the target. This corresponds to an approximate -1 to -13 Vdc output.
• ▶ Recommended Gap Setting: We recommend setting the initial gap at 1.0 mm (40 mils) for optimal positioning within the linear range.
• ▶ Incremental Scale Factor (ISF): The probe provides a nominal sensitivity of 7.87 V/mm (200 mV/mil), with interchangeability error included in its tolerance.
• ▶ Deviation from Straight Line (DSL): Linearity error remains less than ±0.06 mm (±2.3 mils), ensuring high measurement fidelity.
• ▶ Frequency Response: The system responds from 0 to 10 kHz (+0, -3 dB typical), maintaining this performance with up to 305 meters of field wiring.

Electrical & Physical Characteristics

• ▶ DC Resistance (Probe): For this 0.5m probe, the resistance from the center conductor to the outer conductor (RPROBE) is 4.0 ± 0.5 ohms.
• ▶ Cable Specification: It includes a 75 Ω coaxial, FEP insulated cable, terminated with a miniature coaxial ClickLoc connector for secure attachment.
• ▶ Temperature Range: The probe operates and stores reliably from -52°C to +177°C (-62°F to +351°F), suitable for extreme environments.
• ▶ Materials & Pressure: Constructed with a PPS tip and AISI 304 stainless steel case. It uses a Viton O-ring to seal differential pressure between the tip and case.

Complete Ordering Configuration: 330908-10-55-05-02-00

Understanding the part number suffix ensures you select the correct configuration. The model 330908-10-55-05-02-00 breaks down as follows:

• 🟤 Model: 330908 = 3300 NSv Probe, 3/8-24 UNF thread, without armor
• 🟤 Unthreaded Length Option: -10 = 1.0 inch
• 🟤 Overall Case Length Option: -55 = 5.5 inches
• 🟤 Total Length Option: 05 = 0.5 meter (20 inches)
• 🟤 Connector and Cable Type Option: 02 = Miniature coaxial ClickLoc connector, standard cable
• 🟤 Agency Approval Option: -00 = Not required

Frequently Asked Questions (FAQ)

We answer common inquiries about the NSv Proximity Probe to assist with your selection and use.

Compatibility and Wiring

• ❓ Is this probe compatible with older Bently Nevada systems?
  Yes, the 3300 NSv Proximity Probe is mechanically and electrically interchangeable with previous 3300 RAM proximity probes and extension cables.
• ❓ What type of field wiring does the proximitor require?
  We recommend using a three-conductor shielded triad cable from 16 to 24 AWG. The maximum length between the proximitor and monitor is 305 meters (1000 feet).

Application and Environment

• ❓ Can I use this probe on a shaft smaller than 13 mm?
  Yes, but axial measurements on diameters smaller than 13 mm may change the scale factor. Reducing the probe gap can help limit this change.
• ❓ Does the probe come with a pressure test certificate?
  Probes are not pressure tested before shipment by default. Contact our custom design department if your application requires a specific pressure seal test.

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Contact: sales@ubestplc.com Phone: +86 180 3000 5825