Bently Nevada 3300 NSv Proximity Probes – Precision for Critical Machinery

Technical Specifications – Bently Nevada 3300 NSv Probe

• Brand & Model: Bently Nevada 3300 NSv Proximity Probes – 330910-01-10-10-02-05
• Full Suffix Information (tree structure):
  • 330910 = 3300 NSv Probe, M10X1 thread, with armor
  • -01 = Unthreaded Length: 10 mm
  • -10 = Overall Case Length: 100 mm
  • -10 = Total Length: 1.0 meter (39 inches)
  • -02 = Miniature coaxial ClickLoc connector, standard cable
  • -05 = Agency Approval: Multiple Approvals
• Linear Range: 1.5 mm (60 mils) from 0.25 mm to 1.75 mm (10 to 70 mils). Output voltage approximately -1 to -13 Vdc.
• Recommended Gap Setting: 1.0 mm (40 mils)
• Incremental Scale Factor (ISF): 7.87 V/mm (200 mV/mil) with +12.5% / -20% interchangeability error.
• Deviation from Best Fit Straight Line (DSL): Less than ±0.06 mm (±2.3 mils)
• Frequency Response: 0 to 10 kHz typical (+0, -3 dB) with up to 305 meters (1000 feet) of field wiring.
• Probe DC Resistance: 4.2 ± 0.5 ohms (center to outer conductor for 1.0m length).
• Extension Cable DC Resistance: Center conductor 0.220 Ω/m (0.067 Ω/ft); Shield 0.066 Ω/m (0.020 Ω/ft)
• Extension Cable Capacitance: 69.9 pF/m (21.3 pF/ft) typical
• Field Wiring: 0.2 to 1.5 mm² (16 to 24 AWG), maximum length 305 m (1000 ft) between Proximitor Sensor and monitor.
• Target Size (flat target): Minimum 8.9 mm (0.35 in) diameter; Recommended minimum 13 mm (0.5 in).
• Probe Tip Material: Polyphenylene sulfide (PPS)
• Probe Case Material: AISI 304 stainless steel (SST)
• Probe Cable: 75 Ω coaxial, FEP insulated, total lengths 0.5, 1, 5, or 7 meters.
• Operating Temperature: -52°C to +177°C (-62°F to +351°F)
• Storage Temperature: -52°C to +177°C (-62°F to +351°F)
• Minimum Bend Radius: 25.4 mm (1.0 inch) with or without SST armor
• Maximum Torque (probe case): 33.9 N•m (300 in•lb); Recommended 11.3 N•m (100 in•lb)

Frequently Asked Questions (FAQ)

• Can I use the 3300 NSv probe with older 3300 RAM extension cables? – Yes, they are mechanically and electrically compatible and interchangeable.
• What is the maximum field wiring length? – You can run up to 305 meters (1000 feet) between the Proximitor Sensor and the monitor.
• Does the probe resist chemicals? – The NSv Proximity Probes have increased chemical resistance compared to 3300 RAM, suitable for process compressors.
• How do I gap the probe correctly? – Set the gap to 1.0 mm (40 mils) for optimal linear range performance.
• What is the warranty period? – 12 months factory warranty from Bently Nevada (conditions apply).
• Are these probes pressure tested before shipment? – No, standard units are not pressure tested. Contact custom design department if you need a pressure seal test.

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