Radial vibration measurement
A radially mounted probe can observe shaft motion relative to a bearing housing while the enclosure keeps the adjustment point outside the machine case.
01
Product Description
Bently Nevada 31000-16-05-00-079-03-02, Bently Nevada 31000-16-05-00-033-03-02 and Bently Nevada 31000-16-10-15-040-03-02 are 31000 proximity probe housing assemblies built around a 3300 XL 8 mm probe. Each enclosure protects the probe connection and provides a sleeve that carries the probe through the machine case to the target.
Bently Nevada 31000-16-05-00-079-03-02 and Bently Nevada 31000-16-05-00-033-03-02 use a 0.5 m probe lead and no standoff, but their penetration values differ at 7.9 and 3.3 inches. Bently Nevada 31000-16-10-15-040-03-02 uses a 1.0 m lead, a 1.5 inch standoff and a 4.0 inch penetration, moving the enclosure farther from the mounting face while preserving the sleeve-to-target path.
Across Bently Nevada 31000-16-05-00-079-03-02, Bently Nevada 31000-16-05-00-033-03-02 and Bently Nevada 31000-16-10-15-040-03-02, the same fitting set closes unused entries and seals the armored probe cable, while the 3/4-14 NPT mounting thread secures the sleeve. The exact lead, standoff and penetration codes must therefore be read together before installation.
02
Product Specifications
| Technical Item | 31000-16-05-00-079-03-02 | 31000-16-05-00-033-03-02 | 31000-16-10-15-040-03-02 |
|---|---|---|---|
| Brand | Bently Nevada | ||
| Product Name | 31000 proximity probe housing assembly | ||
| Country | United States | ||
| Probe option A | 16 = 3300 XL 8 mm probe | ||
| Probe cable length B | 05 = 0.5 m | 05 = 0.5 m | 10 = 1.0 m |
| Standoff adapter C | 00 = none | 00 = none | 15 = 1.5 in |
| Probe penetration D | 079 = 7.9 in | 033 = 3.3 in | 040 = 4.0 in |
| Fitting option E | 03 = two plugs, 3/4-14 NPT fitting, reducer and armored-cable seal set | ||
| Mounting thread F | 02 = 3/4-14 NPT | ||
| Housing body | 303 stainless steel | ||
| Probe sleeve | 304 stainless steel | ||
| Typical mass | 1.8 kg without conduit fittings | ||
| Probe temperature envelope | −51 to +177 °C, standard probe | ||
| Long-sleeve support | Required when C + D exceeds 304 mm | ||
03
Typical Applications
The three Bently Nevada 31000 housing assemblies provide external probe access where a machine-case-mounted proximity probe must remain adjustable and protected.
Keyphasor measurement
The housing can position a probe toward a rotating reference feature so the connected transducer system supplies a phase or speed reference.
Approved hazardous-area arrangements
When combined with an approved transducer system and the specified intrinsic-safety barriers, the housing can form the mechanical enclosure used in the documented hazardous-area installation.
04
Installation Highlights
The selected 31000 assembly must match the installed reach and support arrangement represented by its own order fields; the three compared variants are not interchangeable by appearance.
Installed reach
Measure from the machine mounting face to the target and select the assembly whose standoff and penetration place the probe inside its adjustment range.
Sleeve support
Add support where the documented reach requires it so enclosure or conduit load cannot move the probe after the gap is established.
Sealing and final position
Tighten the fittings, cable seal and cover, then recheck conditioned gap voltage to confirm that sealing did not move the probe.
05
Common Questions
01Which reach difference matters most among Bently Nevada 31000-16-05-00-079-03-02 / 31000-16-05-00-033-03-02 / 31000-16-10-15-040-03-02?
Bently Nevada 31000-16-05-00-079-03-02 / 31000-16-05-00-033-03-02 / 31000-16-10-15-040-03-02 differ in lead length, standoff and penetration; calculate the installed sleeve reach from all three fields rather than comparing one code alone.
02Why is sleeve support important for Bently Nevada 31000-16-05-00-079-03-02 / 31000-16-05-00-033-03-02 / 31000-16-10-15-040-03-02?
A long combined standoff and penetration on Bently Nevada 31000-16-05-00-079-03-02 / 31000-16-05-00-033-03-02 / 31000-16-10-15-040-03-02 can resonate with machine vibration, so the documented support rule must be applied to the installed geometry.
03Can the same cable route be used for Bently Nevada 31000-16-05-00-079-03-02 / 31000-16-05-00-033-03-02 / 31000-16-10-15-040-03-02?
The fitting set is shared, but Bently Nevada 31000-16-05-00-079-03-02 / 31000-16-05-00-033-03-02 / 31000-16-10-15-040-03-02 have different lead lengths, so confirm connector reach and bend radius for each enclosure location.
04What should be recorded before replacing Bently Nevada 31000-16-05-00-079-03-02 / 31000-16-05-00-033-03-02 / 31000-16-10-15-040-03-02?
Record the complete code, installed penetration, standoff position, probe gap and fitting orientation for Bently Nevada 31000-16-05-00-079-03-02 / 31000-16-05-00-033-03-02 / 31000-16-10-15-040-03-02 before disturbing the assembly.
05Why can Bently Nevada 31000-16-05-00-079-03-02 / 31000-16-05-00-033-03-02 / 31000-16-10-15-040-03-02 not be interchanged by probe code alone?
Bently Nevada 31000-16-05-00-079-03-02 / 31000-16-05-00-033-03-02 / 31000-16-10-15-040-03-02 share probe option 16 but use different physical reach and lead configurations; interchangeability depends on the full code.
06How is the final gap verified on Bently Nevada 31000-16-05-00-079-03-02 / 31000-16-05-00-033-03-02 / 31000-16-10-15-040-03-02?
Connect the complete 3300 XL 8 mm measurement chain for Bently Nevada 31000-16-05-00-079-03-02 / 31000-16-05-00-033-03-02 / 31000-16-10-15-040-03-02, set gap from the conditioned voltage, tighten the sleeve and confirm the voltage again after closing the housing.
06
Advantageous Brands
Moore Automation
https://www.mvme.cn/Moore Automation covers ABB, Siemens, Rockwell Automation, Schneider Electric, Honeywell, Emerson, GE, Yokogawa and other automation product families.
The range also includes Bently Nevada, EPRO and related machinery-monitoring references, with exact models kept separate from similarly named variants.
PLC brandsABB, Siemens, Rockwell, Schneider
DCS brandsHoneywell, Emerson, GE, Yokogawa
TSI brandsBently Nevada and EPRO
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