Bently Nevada 3300 NSv Proximity Probe – Compact 0.5m Sensor for Precision Monitoring

Complete suffix information & technical specifications

• Manufacturer : Bently Nevada
• Model : 3300 NSv Proximity Probes
• Suffix tree :
  • 330901 – 1/4-28 UNF thread, without armor
  • 00 – unthreaded length 0.0 inch
  • 90 – overall case length 9.0 inch
  • 05 – total length 0.5 meter (20 inch)
  • 02 – miniature coaxial ClickLoc™ connector, standard cable
  • 05 – multiple agency approvals (CSA, ATEX, etc.)
• Probe case material : AISI 304 stainless steel
• Probe tip material : Polyphenylene sulfide (PPS)
• Cable specification : 75 Ω coaxial, FEP insulated (0.5 m length)
• DC resistance (0.5 m probe) : 4.0 ±0.5 Ω (center to outer conductor)
• Torque values (1/4-28) : recommended 5.1 N•m (45 in•lb), max 7.3 N•m
• Thread engagement limit (1/4-28) : 0.375 inch
• Temperature range : operate/storage -52 °C to +177 °C (-62 °F to +351 °F)
  Avoid sustained exposure below -34 °C (-30 °F) to protect pressure seal.
• Temperature classification (probe only) :
  • For EPL Ga and Gc: T1 (-55°C to +232°C), T2 (-55°C to +177°C), T3 (-55°C to +120°C), T4 (-55°C to +80°C), T5 (-55°C to +40°C)
  • For EPL Dc: T280°C @ Ta -55°C to +232°C, T225°C @ Ta -55°C to +177°C, T170°C @ Ta -55C to +120°C, T130°C @ Ta -55°C to +80°C, T105°C @ Ta -55°C to +100°C, T90°C @ Ta -55°C to +40°C
• Pressure sealing : Viton O‑ring (differential design, not tested before shipment)
• Weight : approx. 14 to 150 g (0.5 to 5.3 oz)

Frequently asked questions

• What is the advantage of the 0.5 meter cable length?
  This shorter cable minimizes signal loss in high-frequency applications and fits installations with limited space.
• Does the probe withstand high pressure?
  It seals differential pressure with a Viton O‑ring, but we do not pressure‑test every unit before shipping.
• Is the 75 Ω impedance critical?
  Absolutely – the NSv Proximity Probes require 75 Ω coaxial cable to maintain signal integrity with Bently Nevada monitors.

Author: Ubest Automation

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