Bently Nevada 31000-28-10-00-087-03-02 English Proximity Probe Housing Assemblies

Description

The 31000-28-10-00-087-03-02 is an English proximity probe housing assembly designed for industrial machinery monitoring, specifically for 3300 XL 8 mm probes. This configuration features an 8 mm probe with a connector protector (Option 28), a 1.0 m probe cable (Option 10), and an 8.7 in probe penetration length (Option 087). The assembly provides mechanical and environmental protection for the probe and its extension cable, allowing for gap adjustment or probe replacement without the need for machine disassembly. Constructed from polyphenylene sulfide (PPS), this high-strength thermoplastic housing offers robust corrosion resistance, while its stainless steel components ensure durability in demanding environments. This assembly is fully compliant with API 670 standards for externally mounted proximity probe housings and is suitable for use in radial vibration and Keyphasor measurement applications when used with an approved transducer system.

Features

• 3300 XL 8 mm probe (Option 28): Includes connector protector for enhanced cable connection security.
• 1.0 m probe cable (Option 10): Standard cable length for direct integration with system monitoring chains.
• Probe penetration length (Option 087): Precisely set to 8.7 in (approx 221 mm) for accurate installation.
• Conduit fittings (Option 03): Configured with two plugs and one M20 fitting.
• Mounting thread (Option 02): Features 3/4-14 NPT mounting threads.
• Material composition: High-strength PPS housing with corrosion-resistant stainless steel elements.
• Compliance: Fully compliant with API 670 Standard for externally mounted proximity probe housings.

Applications

The 31000 Series proximity probe housing is utilized for mounting proximity probes through machine casings, typically for radial vibration or Keyphasor measurements. It is widely used in sectors such as:

• Power Generation
• Oil and Gas Processing
• Petrochemical and Refining
• Rotating Machinery Protection

Ordering Information

Option	Code	Description
Orderable Part Number	31000-28-10-00-087-03-02	English Proximity Probe Housing Assembly
A - Probe/Connector	28	3300 XL 8 mm probe with connector protector
B - Probe Cable Length	10	1.0 m (39 in) cable
C - Standoff Adapter	00	Not required
D - Probe Penetration	087	8.7 in (approx 221 mm) penetration depth
E - Fittings	03	Two plugs, one M20 fitting
F - Mounting Thread	02	3/4-14 NPT

Technical Specifications

Parameter	Specification
Manufacturer	Bently Nevada
Model	31000
Part Number	31000-28-10-00-087-03-02
Housing Material	Polyphenylene sulfide (PPS)
Hardware Material	Stainless steel
Mounting Thread	3/4-14 NPT
Compliance	API 670 Standard
Probe Compatibility	3300 XL 8 mm Proximity Probe

Installation Guidelines

• Ensure the machine casing is properly affixed to the bearing to maintain an accurate relative vibration signal.
• When installing, mount the outer sleeve into the machine case first, followed by the probe sleeve insertion and probe gap adjustment.
• Use the connector protector when connecting the probe cable to ensure a secure and protected seal.
• Tighten hole plug nuts to 0.5 N-m (5 in-lbs) if unused ports are plugged.
• For penetration lengths greater than 12 in (305 mm), provide additional sleeve support near the probe to prevent resonance.