31000-31-05-20-058-00-02 is a Bently Nevada proximity probe housing assembly featuring an integrated 3300 XL NSv probe with a connector protector. Fully compatible with 3/4-14 NPT mounting threads, this unit works seamlessly with industrial machinery cases to deliver flexible external probe gap adjustments and stable mechanical and environmental protection under harsh plant floor conditions.
Specifications
Operating:-34°C to +177°C (-30°F to +351°F)
Storage:-51°C to +177°C (-60°F to+351°F)
Protection Ratings:Type 4X rating certified by Canadian Standards Association (CSA). IP66 rating verified by SC115582-1 (e) 106. CENELEC standard EN50014 rating for electrostatic dissipation of a plastic material located in a hazardous area.
Housing Material:Glass-reinforced Polyphenylene Sulfide (PPS) thermoplastic containing conductive fibers
Sleeve Material and Retaining Chain:AISI 304 stainless stee
Outer Sleeve and Exterior Screws:AISI 303 stainless steel
O-Ring Material:Neoprene
Recommended Torque(retaining nut):29.4 N·m (260 in·lb)
Housing Strength (typical):Outer sleeve was mounted on a test stand with its axis parallel to horizontal and the housing mounted on the outer sleeve through an end hole. The housing supported 912 N (205 lb) placed approximately 38 mm (1.5 inches) from the unsupported end with the cover fastened in place and grounding liner installed.
Housing Impact Strength:Certified by BASEEFA to withstand two separate 4 Joule (3.0 ft·lb) impacts at -39°C (-38°F) and at 115°C (239°F). Samples of the housing and cover were verified by CSA to withstand a 7 Joule (5.2 ft·lb) impact at ambient room temperature.
Weight:1.2 kg (2.6 lb) typical.
Installation & Wiring
- Outer Sleeve Mounting: Install the stainless steel outer sleeve securely into the machine case using the 3/4-14 NPT threaded connection interface.
- Sleeve Insertion & Gapping: Insert the main probe sleeve assembly through the housing and adjust the internal proximity probe to its specified measuring gap.
- Housing Body Fitting: Temporarily disconnect the internal probe cable and slide the glass-reinforced polyphenylene sulfide (PPS) housing body directly over the outer sleeve mount.
- Retainer & Nut Tensioning: Position the metal slider retainer plate completely underneath the retaining nut and torque the nut to the recommended 29.4 N-m (260 in-lb) rating.
- Coaxial Connector Sealing: Re-route and re-connect the internal probe coaxial cable lead, then slide the integrated fluorosilicone connector protector completely over the ClickLoc junction.
- Enclosure Cover Fastening: Fit the durable plastic housing cover plate over the front face parameters and tighten all matching captive screws firmly.
Ordering Information
|
Option Code |
Parameter Block Description |
Configured Value Specification |
|
31000 |
Housing Model Base |
English Proximity Probe Housing Assembly |
|
-31 |
Probe with Connector |
3300 XL NSv probe with connector protector |
|
-05 |
Probe Cable Length |
0.5 meter (20 inches) total lead length |
|
-20 |
Standoff Adapter Length |
2.0 inches total standoff height (Option C) |
|
-058 |
Probe Penetration |
5.8 inches total penetration depth into casing (Option D) |
|
-00 |
Conduit Fittings |
Without separate conduit fittings (Two plugs installed) |
|
-02 |
Mounting Thread |
3/4-14 NPT thread profile (Required for standoff option) |
FAQ
Q1: What is the 31000-31-05-20-058-00-02 used for?
A1: It is designed to mount proximity probes through machine casings for radial vibration and Keyphasor measurements.
Q2: Does this housing support easy maintenance?
A2: Yes, it allows external access for probe gap adjustment and replacement without machine disassembly.
Q3: What materials are used in this housing assembly?
A3: It features durable PPS thermoplastic and corrosion-resistant stainless steel components.
Q4: Is this model compliant with industry standards?
A4: Yes, it meets API 670 standards for externally mounted proximity probe housings.
Q5: Can it be used in hazardous areas?
A5: Yes, it can be applied in intrinsically safe environments when used with approved systems and I.S. barriers.
Accessories
| Part Number | Description |
| 37948-01 | Probe Support / Oil Seal Recommended for sleeves longer than 305 mm (12 in) |
| 124200 | 31000 and 32000 User Guide |




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