The Bently Nevada 330101-085-00-00 is part of the 3300 XL series, designed for vibration and position monitoring on fluid-film bearing machines. This 8 mm proximity probe, with a 3/8-24 UNF thread and no armor, integrates with a 3300 XL Proximitor sensor and extension cable. The system is widely used for keyphasor, speed measurements, and precise monitoring of machine conditions.

General Specifications

• Model: 330101-085-00-00 8 mm proximity probe.
• Thread: 3/8-24 UNF thread (085).
• Armor: No armor (00-00).
• Temperature Range: +18°C to +27°C (+64°F to +80°F).
• Altitude: Maximum 2000 meters.
• Target Material: AISI 4140 steel target.
• Gap: Probe gapped at 1.27 mm (50 mils).

Electrical Specifications

• Proximitor Sensor Input: Compatible with 3300-series 5 mm or 3300 XL 8 mm proximity probes and extension cables.
• Power Supply:
  • Requires -17.5 Vdc to -26 Vdc, with a 10 kΩ load.
  • Maximum current consumption: 12 mA.
  • Operation at voltages above -23.5 Vdc reduces linear range.
• Output Sensitivity: Less than 2 mV change in output voltage per volt change in input voltage.
• Output Resistance: 50 Ω.

Performance Characteristics

• System Accuracy: Applies when using 3300 XL 8 mm components calibrated to an AISI 4140 steel target.
• Interchangeability: Valid only within systems calibrated to the AISI 4140 steel target.