Designed for harsh industrial environments, the Bently Nevada 21000-34-10-00-085-04-02 mechanical enclosure provides robust environmental protection and precise positioning for proximity transducer probes within critical machinery monitoring paths. This 21000 series aluminum housing facilitates the external installation and adjustment of proximity probes, allowing engineers to calibrate probe-to-shaft clearance without dismantling the machine casing. Constructed from high-grade, copper-free aluminum, it delivers outstanding structural integrity and defense against corrosive atmospheres in modern industrial plants.
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Model Number | 21000-34-10-00-085-04-02 |
| Housing Material | Copper-free Aluminum (Epoxy-coated) |
| Probe Option (-34) | 3300 XL 8 mm proximity probe |
| Probe Cable Length (-10) | 1.0 meter (3.3 feet) |
| Connector Option (-00) | Miniature coaxial connector, not installed |
| Standoff Adapter Length (-085) | 8.5 inches (216 mm) |
| Thread Option (-04) | M20 x 1.5 |
| Agency Approval Option (-02) | ATEX / IECEx / CSA Hazardous Area Approvals |
| Environmental Protection | IP66 / NEMA 4X equivalent |
| Shipping Weight (Calculated) | 2.45 kg (5.40 lbs) |
| Package Dimensions (Calculated) | 350 mm x 180 mm x 150 mm |
| Interface Component | Function and Assignment |
|---|---|
| Standoff Mount Thread | M20 x 1.5 connection to the machine casing |
| Internal Probe Cable | Coaxial transmission line routing signal to the external Proximitor Sensor |
| Conduit Entry Port | Connection port for protective flex conduit routing the probe cable |
The 21000 series features a copper-free aluminum housing, which represents the standard mechanical protection tier. For applications involving extremely aggressive chemical environments or offshore marine installations, the stainless steel 24000 series housing is typically specified instead. Always ensure that the -34 probe option matches your installed 3300 XL Proximitor system calibration profile (8 mm probe curves) to prevent voltage-to-displacement calculation errors.
A common issue during field retrofits is the failure to account for total thermal expansion of the standoff adapter. In high-temperature machinery such as steam turbines, an 8.5-inch standoff adapter (-085 option) can experience minor mechanical elongation. If the probe is gapped when the machine is completely cold, this thermal expansion can shift the probe's static DC voltage offset. Always cross-check the working gap at normal operating temperature.
When pulling the probe's coaxial cable through the conduit entry, verify that the minimum bend radius of the cable (typically 25.4 mm or 1 inch) is not violated. Ensure the internal O-ring seal within the dome is lubricated with a light coat of silicone grease before closing the housing cover. This prevents moisture ingress, which is the primary cause of signal degradation and erratic high-frequency noise spikes in proximity systems.
Isolate and lock out the machinery before mounting or adjusting the proximity probe housing. Ensure the machine shaft is completely stationary. Failure to de-energize and lock out equipment can result in catastrophic mechanical damage, probe destruction, or severe personal injury if contact occurs with rotating assemblies.
Mount the standoff adapter securely to the machine casing using the specified M20 x 1.5 thread. Use high-temperature thread sealant where gas containment is required.
Insert the proximity probe assembly through the housing sleeve until the tip makes light, non-destructive contact with the shaft target area.
Back off the probe to the desired physical gap (typically 1.27 mm to 2.0 mm, corresponding to approximately -10 VDC on a 3300 XL Proximitor).
Lock the adjustment jam nuts, feed the coaxial cable through the flexible conduit port, and securely tighten the aluminum outer protective dome cover.
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Returns & Warranty
Manufacturer: Bently Nevada
Product No.: 21000-34-10-00-085-04-02
Country of origin:United States
Product Type: Proximity Probe Housing Assemblies
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 1080g
Dimensions: 350 mm x 180 mm x 150 mm
Shipping port: Xiamen
Warranty: 12 months
Designed for harsh industrial environments, the Bently Nevada 21000-34-10-00-085-04-02 mechanical enclosure provides robust environmental protection and precise positioning for proximity transducer probes within critical machinery monitoring paths. This 21000 series aluminum housing facilitates the external installation and adjustment of proximity probes, allowing engineers to calibrate probe-to-shaft clearance without dismantling the machine casing. Constructed from high-grade, copper-free aluminum, it delivers outstanding structural integrity and defense against corrosive atmospheres in modern industrial plants.
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Model Number | 21000-34-10-00-085-04-02 |
| Housing Material | Copper-free Aluminum (Epoxy-coated) |
| Probe Option (-34) | 3300 XL 8 mm proximity probe |
| Probe Cable Length (-10) | 1.0 meter (3.3 feet) |
| Connector Option (-00) | Miniature coaxial connector, not installed |
| Standoff Adapter Length (-085) | 8.5 inches (216 mm) |
| Thread Option (-04) | M20 x 1.5 |
| Agency Approval Option (-02) | ATEX / IECEx / CSA Hazardous Area Approvals |
| Environmental Protection | IP66 / NEMA 4X equivalent |
| Shipping Weight (Calculated) | 2.45 kg (5.40 lbs) |
| Package Dimensions (Calculated) | 350 mm x 180 mm x 150 mm |
| Interface Component | Function and Assignment |
|---|---|
| Standoff Mount Thread | M20 x 1.5 connection to the machine casing |
| Internal Probe Cable | Coaxial transmission line routing signal to the external Proximitor Sensor |
| Conduit Entry Port | Connection port for protective flex conduit routing the probe cable |
The 21000 series features a copper-free aluminum housing, which represents the standard mechanical protection tier. For applications involving extremely aggressive chemical environments or offshore marine installations, the stainless steel 24000 series housing is typically specified instead. Always ensure that the -34 probe option matches your installed 3300 XL Proximitor system calibration profile (8 mm probe curves) to prevent voltage-to-displacement calculation errors.
A common issue during field retrofits is the failure to account for total thermal expansion of the standoff adapter. In high-temperature machinery such as steam turbines, an 8.5-inch standoff adapter (-085 option) can experience minor mechanical elongation. If the probe is gapped when the machine is completely cold, this thermal expansion can shift the probe's static DC voltage offset. Always cross-check the working gap at normal operating temperature.
When pulling the probe's coaxial cable through the conduit entry, verify that the minimum bend radius of the cable (typically 25.4 mm or 1 inch) is not violated. Ensure the internal O-ring seal within the dome is lubricated with a light coat of silicone grease before closing the housing cover. This prevents moisture ingress, which is the primary cause of signal degradation and erratic high-frequency noise spikes in proximity systems.
Isolate and lock out the machinery before mounting or adjusting the proximity probe housing. Ensure the machine shaft is completely stationary. Failure to de-energize and lock out equipment can result in catastrophic mechanical damage, probe destruction, or severe personal injury if contact occurs with rotating assemblies.
Mount the standoff adapter securely to the machine casing using the specified M20 x 1.5 thread. Use high-temperature thread sealant where gas containment is required.
Insert the proximity probe assembly through the housing sleeve until the tip makes light, non-destructive contact with the shaft target area.
Back off the probe to the desired physical gap (typically 1.27 mm to 2.0 mm, corresponding to approximately -10 VDC on a 3300 XL Proximitor).
Lock the adjustment jam nuts, feed the coaxial cable through the flexible conduit port, and securely tighten the aluminum outer protective dome cover.
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Returns & Warranty
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| Country of origin |
United States
|
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