Bently Nevada 330101-48-71-20-02-05 – 3300 XL 8 mm Proximity Probe with Hazardous Area Approvals

Complete Suffix Information – Model Breakdown

330101-48-71-20-02-05 — full configuration tree

• 330101 : 3300 XL 8 mm Probe, 3/8-24 UNF thread, without armor
  • 48 → Unthreaded Length Option: 4.8 inches
  • 71 → Overall Case Length Option: 7.1 inches
  • 20 → Total Length Option: 2.0 meters (6.6 feet)
  • 02 → Connector and Cable-Type: Miniature coaxial ClickLoc™ connector, standard cable
  • 05 → Hazardous Area Approvals: CSA, ATEX, IECEx certified

Technical Specifications – High-Performance Eddy Current Sensing

• Brand & Model: Bently Nevada 330101-48-71-20-02-05 – 3300 XL 8 mm Proximity Probe with hazardous area certifications.
• Hazardous Area Approvals: CSA, ATEX, IECEx certified for use in explosive gas and dust environments.
• Linear Range: 2 mm (80 mils) from 0.25 mm to 2.3 mm (10 to 90 mils) with output –1 to –17 Vdc.
• Incremental Scale Factor (ISF): 7.87 V/mm (200 mV/mil) ±5% (1 or 5 m system) including interchangeability error.
• Recommended Gap (Radial Vibration): –9 Vdc ≈ 1.27 mm (50 mils).
• Deviation from Straight Line (DSL): ≤ ±0.025 mm (±1 mil) for standard 1/5 m system at 0°C to +45°C.
• Probe DC Resistance (RPROBE): 7.88 ± 0.50 Ω (center to outer conductor for 2.0 m length).
• Extension Cable Capacitance: 69.9 pF/m (21.3 pF/ft) typical.
• Field Wiring: 0.2 to 1.5 mm² (16–24 AWG), 3-conductor shielded triad, maximum length 305 m (1000 ft) to monitor.

Temperature & Environmental Robustness

• Standard Probe Operating Temp: –52°C to +177°C (–62°F to +350°F).
• Extended Temperature Range (ETR) Probe Tip: –52°C to +218°C (–62°F to +425°F); cable & connector withstand –51°C to +260°C (–60°F to +500°F).
• Pressure Sealing: Viton® O-ring seals differential pressure between tip and case.
• Relative Humidity Tolerance: less than 3% change in ASF after 56 days at 93% humidity (IEC 68-2-3).
• Probe Case Material: AISI 303 or 304 stainless steel (SST) for corrosion resistance.
• Probe Tip Material: Polyphenylene sulfide (PPS) with thick encapsulation for ruggedness.
• Weight: 323 g/m (11.4 oz) approximate.

Frequently Asked Questions (FAQ)

What hazardous area approvals does the 330101-48-71-20-02-05 carry?

• This model includes CSA, ATEX, and IECEx certifications for use in explosive gas and dust environments. The 05 suffix indicates full hazardous area compliance.

What is the total system linearity for the 3300 XL 8 mm probe?

• The standard 1 or 5 meter system provides ≤ ±0.025 mm (±1 mil) deviation over the linear range from 0°C to +45°C.

Can I use this probe with an existing 3300 XL extension cable?

• Yes, the 330101-48-71-20-02-05 uses the standard ClickLoc™ interface, compatible with all 3300 XL extension cables and Proximitor sensors.

Does the probe require a specific target material?

• The probe calibrates to AISI 4140 steel. For other materials, apply a material correction factor; contact technical support for assistance.

What is the maximum field wiring length to the monitor?

• You can run up to 305 meters (1000 feet) of shielded triad cable between the Proximitor sensor and the monitor without signal degradation below high frequency roll-off.

How does the Extended Temperature Range differ?

• ETR probes sustain tip temperatures up to +218°C (+425°F) and maintain ±6.5% scale factor accuracy over the full range.

For optimal machine protection in hazardous environments, rely on the Bently Nevada 330101-48-71-20-02-05 probe. This 3300 XL 8 mm Probe with CSA/ATEX/IECEx approvals excels in steam turbines, compressors, and generators located in explosive atmospheres. Browse the full 3300 XL 8mm Probe series for compatible accessories and replacement parts.

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