Description

The 31000-28-05-15-030-00-02 is an English proximity probe housing assembly designed for the 3300 XL 8 mm proximity transducer system, featuring multiple agency approvals (Option 28). This assembly allows for external access to the probe and its extension cable, enabling critical maintenance tasks such as gap adjustment or probe replacement without the need to disassemble the machine casing. It is primarily used for monitoring radial vibration and Keyphasor signals on rotating machinery. This housing is constructed from polyphenylene sulfide (PPS), a high-strength thermoplastic offering excellent corrosion resistance, complemented by corrosion-resistant stainless steel components. The assembly is fully compliant with API 670 standards for externally mounted proximity probe housings. This specific configuration includes a 0.5 m probe cable (Option 05) and is configured with 3/4-14 NPT mounting threads (Option 02) for secure installation. It is supplied without fittings (Option 00), utilizing two plugs and two washers for sealing unused ports.

Features

• Constructed from polyphenylene sulfide (PPS) and stainless steel for durability and corrosion resistance
• API 670 compliant design for reliable machinery protection
• Enables external access for probe gap adjustment and replacement
• Compatible with 3300 XL 8 mm probes with multiple agency approvals
• Includes 0.5 m probe cable and 3/4-14 NPT mounting threads
• Suitable for integration in intrinsically safe hazardous area applications when paired with appropriate I.S. barriers

Applications

• Radial vibration measurement on rotating machinery
• Keyphasor measurements
• Hazardous area monitoring (when installed with approved transducer systems)
• Oil and gas, power generation, and petrochemical processing equipment

Ordering Information

Option	Code	Description
Orderable Part Number	31000-28-05-15-030-00-02	31000 English Proximity Probe Housing Assembly
A - Probe with Connector	28	3300 XL 8 mm probe, multiple approvals
B - Probe Cable Length	05	0.5 m (20 in)
C - Standoff Adapter Length	15	Standoff Adapter Length (Standard)
D - Probe Penetration	030	Probe Penetration Option
E - Fittings	00	Without fittings; two plugs and two washers
F - Mounting Thread	02	3/4-14 NPT

Technical Specifications

Parameter	Specification
Manufacturer	Bently Nevada
Model	31000
Housing Material	Polyphenylene Sulfide (PPS)
Hardware Material	Corrosion-resistant stainless steel
Mounting Thread	3/4-14 NPT
Probe Compatibility	3300 XL 8 mm Proximity Probe
Compliance	API 670
Weight	1.2 kg

Installation Guidelines

• Install the outer sleeve into the machine case before attaching the housing assembly.
• Ensure the machine casing is affixed to the bearing when monitoring radial vibration to maintain signal accuracy.
• Tighten hole plug nuts to 0.5 N-m (5 in-lbs) if unused ports are sealed.
• Use appropriate I.S. barriers when installing in hazardous area applications.

Compliance and Certifications

• API 670 Compliant
• Multiple agency approvals for 3300 XL 8 mm probe system (as specified by Option 28)