Precision Probe Housing with Extended Standoff

• Brand: Bently Nevada
• Series: 31000 Proximity Probe Housing Assemblies
• Full Part Number: 31000-28-05-35-032-03-02
  • 31000: Base model, proximity probe housing
  • -28: Probe option = 3300 XL 8 mm probe, multiple approvals
  • -05: Probe cable length = 0.5 m (20 inches)
  • -35: Standoff adapter option = 3.5 inches
  • -032: Probe penetration option = 3.2 inches
  • -03: Fittings option = Two plugs, 3/4-14 NPT fitting, reducer, cable seal grip with three grommets
  • -02: Mounting thread option = 3/4-14 NPT

Core Technical Specifications

• Brand & Model: Bently Nevada 31000-28-05-35-032-03-02
• Temperature Range: Operates from -51°C to +105°C (-60°F to +221°F).
• Housing Material: Glass-reinforced PPS thermoplastic with conductive fibers.
• Sleeve Material: AISI 304 stainless steel with integrated retaining chain.
• Outer Sleeve & Screws: AISI 303 stainless steel for maximum corrosion resistance.
• O-Ring Material: Neoprene® creates a weather-tight environmental seal.
• Protection Ratings: CSA Type 4X and IP66 certified.
• ESD Protection: Meets CENELEC EN50014 for hazardous area plastic enclosures.
• Impact Strength: Withstands 4 Joule impacts at -39°C and +115°C (BASEEFA).
• Room Temperature Impact: Housing and cover resist 7 Joule strikes (CSA verified).
• Static Load Capacity: Supports 912 N (205 lb) near the unsupported end.
• Retaining Nut Torque: Manufacturer recommends 29.4 N·m (260 in·lb).
• Included Probe: Factory-installed 3300 XL 8mm Probe with 0.5m cable.
• Probe DC Resistance: 7.59 Ω ± 0.50 Ω (center to outer conductor).
• Probe Temperature Range: -35°C to +177°C (-31°F to +351°F).
• Weight: 1.2 kg (2.6 lb) typical.

Environmental Sealing & Hazardous Area Compliance

• This 31000-28-05-35-032-03-02 housing carries multiple international certifications.
• IP66 Rating: Complete protection against powerful water jets and dust ingress.
• Type 4X Rating: Suitable for corrosive environments indoors and outdoors.
• Conductive PPS compound prevents electrostatic charge accumulation in hazardous areas.
• Viton internal O-ring and Neoprene sleeve O-ring provide dual sealing protection.
• Typical applications include refineries, chemical plants, offshore platforms, and power generation.

Expert FAQ: Five Distinct Questions

• What is the advantage of the 3.5 inch standoff adapter? It creates space between the mounting surface and housing for thermal insulation or cable clearance.
• Can this housing operate in high humidity environments? Yes, IP66 and Type 4X ratings ensure complete protection against condensation and hose-down.
• What is the difference between penetration and standoff? Penetration is probe insertion depth; standoff is the spacer length between housing and mount.
• Does the probe require calibration with this housing? No, Bently Nevada factory-calibrates the 3300 XL 8mm probe before installation.
• Is the cable grip suitable for armored cable? No, this grip accommodates standard flexible conduit and non-armored probe cables only.

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