Bently Nevada 3300 XL 8mm Probe – Precision Proximity Measurement

Product Identification & Complete Suffix Information

• Brand: Bently Nevada
• Base Model: 330104 – 3300 XL 8 mm Probe, M10 x 1 thread, with armor
• Full Suffix Code (330104-02-08-10-01-00):
  • 02 = Unthreaded Length: 20 mm
  • 08 = Overall Case Length: 80 mm
  • 10 = Total Length: 1.0 meter (3.3 feet)
  • 01 = Miniature coaxial ClickLoc connector with protector, standard cable
  • 00 = Agency Approval: Not required

Core Technical Specifications

• Linear Range: 2 mm (80 mils). It starts at 0.25 mm (10 mils) from target. The range goes from 0.25 mm to 2.3 mm (10 to 90 mils). This corresponds to approximately –1 to –17 Vdc.
• Recommended Gap Setting (Radial Vibration): -9 Vdc. This equals roughly 1.27 mm (50 mils).
• Nominal DC Resistance (RPROBE): 7.59 ± 0.50 Ω for the 1.0 meter length.
• Probe Tip Material: Polyphenylene sulfide (PPS).
• Probe Case Material: AISI 303 or 304 stainless steel (SST).
• Probe Case Thread: M10x1. Maximum thread engagement length is 15 mm.
• Field Wiring: Use 0.2 to 1.5 mm² (16 to 24 AWG) wire. We recommend 3-conductor shielded triad cable with tinned wiring. Maximum cable length between the 3300 XL Proximitor Sensor and monitor: 305 meters (1,000 feet).

Environmental & Mechanical Durability

• Temperature Range (Standard Probe): -52°C to +177°C (-62°F to +350°F) for operating and storage.
• Extended Temperature Range Option: Probe tip works from -52°C to +218°C (-62°F to +425°F). Probe cable and connector handle -51°C to +260°C (-60°F to +500°F).
• Pressure Seal Warning: Exposing the probe to temperatures below -34°C (-30°F) may cause premature seal failure. The probe uses a Viton® O-ring to seal differential pressure.
• Relative Humidity Performance: Less than a 3% change in Average Scale Factor (ASF) when tested at 93% humidity for up to 56 days (IEC 68-2-3).
• Weight: 323 g/m (11.4 oz per meter).

Safety Certifications & Approvals

• Intrinsically Safe (ia): When installed with zener barriers (drawing 141092) or galvanic isolators. Suitable for Class I, Zone 0 (AEx/Ex ia IIC T5…T1 Ga); Class I, Groups A, B, C, D; Class II, Groups E, F, G; Class III.
• Non-Incendive / Zone 2 (nA, ec): When installed per drawing 140979. Suitable for Class I, Zone 2 (AEx/Ex nA IIC T5…T1 Gc); Class I, Division 2, Groups A, B, C, D; and Class I, Zone 2 (AEx/Ex ec llC T5…T1 Gc).

Frequently Asked Questions (FAQ)

• Q: Can I use this 3300 XL 8mm Probe in high humidity areas?
  A: Yes. The probe shows less than 3% ASF change after 56 days at 93% relative humidity.
• Q: What is the maximum cable extension from the Proximitor Sensor?
  A: You can extend up to 305 meters (1,000 feet) of field wiring. See the frequency response graphs for signal rolloff details.
• Q: Does this probe work with my existing Bently Nevada monitor?
  A: Yes. The 3300 XL 8mm Proximity Probe matches the 3300 XL Proximitor Sensor and all compatible Bently Nevada monitoring systems.
• Q: Is the probe pressure tested before shipping?
  A: No. Standard probes do not receive a pressure test. Contact our custom design department if you need a pressure seal test for your application.
• Q: What happens if I expose the probe to -40°C?
  A: Temperatures below -34°C (-30°F) may damage the pressure seal. Keep the probe within the rated range of -52°C to +177°C.

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