Bently 330708-00-28-50-02-00

Product Overview The 330708-00-28-50-02-00 is a proximity probe from Bently Nevada’s 3300 XL 11mm sensor system. This probe features 5/8-18 UNF thread, 0mm unthreaded length, 2.8 inch (71.1mm) overall case length, 5.0 meter integral cable, non-armored construction, and no agency approval. The 5/8-18 UNF thread is a common imperial thread size for North American industrial machinery. The 5.0 meter cable length often eliminates the need for a separate extension cable.

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Description

Bently 330708-00-28-50-02-00

Technical Specifications

Parameter Category Specific Specification
Manufacturer Bently Nevada (Baker Hughes)
Product Family 3300 XL 11mm Proximity Transducer System
Thread Specification 5/8-18 UNF threads
Unthreaded Length 00 = 0.0 mm (no unthreaded section)
Overall Case Length 28 = 2.8 inches (71.1 mm)
Total Cable Length 50 = 5.0 meters (16.4 feet)
Cable Option 02 = Non-armored (standard)
Agency Approval 00 = No agency approval required
Probe Diameter 11.0 mm
Linear Range 4.0 mm (160 mils)
Sensitivity 3.94 V/mm (100 mV/mil) with system
Target Material Calibrated for AISI 4140 steel
Probe Tip Material Polyphenylene Sulfide (PPS)
Probe Case Material AISI 304 stainless steel
Operating Temperature (Probe) -51°C to +177°C (-60°F to +350°F)
Storage Temperature -51°C to +260°C (-60°F to +500°F)
Pressure Sealing Viton O-ring standard
DC Resistance 7.2 ± 0.8 ohms (for 5.0m cable)
Typical Capacitance 69.9 pF/meter
Weight Approximately 0.3 kg

Key Features

  • 5/8-18 UNF Thread: Common imperial thread for North American machinery
  • Long 5.0m Cable: Often eliminates need for separate extension cable
  • 2.8in Case Length: Long case for deep mounting applications
  • 11mm Diameter with 4mm Range: Large linear range
  • TipLoc and CableLoc Technology: Strong mechanical bonds
  • ClickLoc Connector: Reliable connection
  • Full System Interchangeability: Interchangeable within 3300 XL 11mm system

Application Scenarios

  • Large bearing housings: Monitors shaft vibration through thick bearing caps
  • Steam turbine casings: Measures shaft position through thick turbine casings
  • Large compressor cylinders: Monitors shaft vibration through thick compressor walls
  • Generator end shields: Measures air gap and shaft vibration through thick end shields
  • Large pump volutes: Monitors impeller position through thick pump volutes
  • Rolling mill stands: Measures roll position through thick mill stands
  • Large fan housings: Monitors fan shaft vibration through thick housings
  • Hydro turbine housings: Measures shaft vibration through thick concrete and steel housings

Performance Parameters Identical to other 3300 XL 11mm probes. The 5.0 meter cable provides flexibility in probe placement.

Material Composition Identical to other 3300 XL 11mm probes.

Structural Characteristics Cylindrical stainless steel case with 5/8-18 UNF external thread. The 0mm unthreaded length means the thread extends to the probe tip. The 2.8 inch (71.1mm) overall case length provides substantial thread engagement. The 5.0 meter integral cable exits from the rear. The probe tip is molded PPS with flat sensing face.

Working Principle Identical to other 3300 XL 11mm probes.

Installation Requirements

  • Drill and tap mounting hole with 5/8-18 UNF thread to depth of at least 20mm
  • Apply anti-seize compound to threads
  • Tighten to recommended torque of 15.0 N·m (133 in·lb), maximum 45.2 N·m (400 in·lb)
  • The long 5.0m cable is heavy; provide adequate support
  • Route cable away from heat and moving parts
  • Connect with ClickLoc connector