Designed to provide robust mechanical and environmental protection for industrial vibration sensors, the Bently Nevada 21000-28-05-00-070-01-02 is a rugged field-mountable proximity probe housing assembly engineered for critical machinery monitoring. This professional-grade enclosure shields sensitive proximity probes from physical impacts, process fluids, and harsh ambient atmospheres, ensuring high-fidelity signal transmission to your TSI or DCS systems. The housing simplifies the sensor adjustment process, allowing maintenance engineers to calibrate or replace internal probes externally without dismantling machine casings or shutting down processes.
| Manufacturer | Bently Nevada |
| Model Number | 21000-28-05-00-070-01-02 |
| Housing Family | 21000 Series Proximity Probe Housing |
| Housing Material | Anodized Aluminum |
| Mounting Thread (Option -02) | 3/4-14 NPT |
| Probe Cable Length (Option -05) | 0.5 meters (20 inches) |
| Probe Penetration (Option -070) | 7.0 inches |
| Fitting Option (Option -01) | One 1/2-14 NPT plug |
| Operating Temperature | -51 degC to 177 degC (-60 degF to 350 degF) |
| Country of Origin | United States |
| Shipping Weight (Calculated) | 2.1 kg |
| Package Dimensions (Calculated) | 31.0 cm x 15.0 cm x 15.0 cm |
The 21000 series housing is fully compatible with standard 3300 and 3300 XL 8mm proximity sensors. When replacing legacy 21000 housings, cross-reference the probe penetration length (Option -070, corresponding to 7.0 inches) and the mounting thread profile (Option -02, corresponding to 3/4-14 NPT) to prevent mechanical interferences or fluid leaks at the machine interface wall.
Under high-temperature operation on steam turbine cases, thermal growth must be calculated. Ensure that the probe penetration depth accounts for thermal expansion of the machine rotor and stator to avoid physical contact between the probe tip and the target shaft. Lock the main thread assembly firmly with the locking ring to stop vibration-induced drift during operation.
When installing or adjusting the internal sensor, always disconnect the proximity coaxial connector before rotating the housing. If the housing is threaded into the machine casing with the cable connected, the internal coaxial lead will twist and experience mechanical failure or shield degradation. Ensure a minimum thread engagement of 5 full turns on the NPT fitting to guarantee environmental sealing.
Ensure the monitored machinery is completely de-energized, depressurized, and allowed to cool to ambient temperature before attempting to remove or install any probe housing assembly. Residual casing pressure or hot fluid blowback can result in severe physical injury.
Verify that the mounting port thread on the machine casing matches the 3/4-14 NPT thread profile of the housing.
Apply an approved high-temperature industrial thread sealant (such as PTFE or nickel anti-seize) to the male NPT threads.
Thread the housing into the machine wall, maintaining alignment, and tighten to specification. Do not overtighten to prevent thread stripping.
Route the internal probe cable through the conduit outlet, calibrate the sensor gap using an external volt/ohmmeter, and secure the locknuts.
Global Express Shipping
Returns & Warranty
Manufacturer: Bently Nevada
Product No.: 21000-28-05-00-070-01-02
Country of origin:United States
Product Type: Proximity Probe Housing Assemblies
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 1080g
Dimensions: 31.0 cm x 15.0 cm x 15.0 cm
Shipping port: Xiamen
Warranty: 12 months
Designed to provide robust mechanical and environmental protection for industrial vibration sensors, the Bently Nevada 21000-28-05-00-070-01-02 is a rugged field-mountable proximity probe housing assembly engineered for critical machinery monitoring. This professional-grade enclosure shields sensitive proximity probes from physical impacts, process fluids, and harsh ambient atmospheres, ensuring high-fidelity signal transmission to your TSI or DCS systems. The housing simplifies the sensor adjustment process, allowing maintenance engineers to calibrate or replace internal probes externally without dismantling machine casings or shutting down processes.
| Manufacturer | Bently Nevada |
| Model Number | 21000-28-05-00-070-01-02 |
| Housing Family | 21000 Series Proximity Probe Housing |
| Housing Material | Anodized Aluminum |
| Mounting Thread (Option -02) | 3/4-14 NPT |
| Probe Cable Length (Option -05) | 0.5 meters (20 inches) |
| Probe Penetration (Option -070) | 7.0 inches |
| Fitting Option (Option -01) | One 1/2-14 NPT plug |
| Operating Temperature | -51 degC to 177 degC (-60 degF to 350 degF) |
| Country of Origin | United States |
| Shipping Weight (Calculated) | 2.1 kg |
| Package Dimensions (Calculated) | 31.0 cm x 15.0 cm x 15.0 cm |
The 21000 series housing is fully compatible with standard 3300 and 3300 XL 8mm proximity sensors. When replacing legacy 21000 housings, cross-reference the probe penetration length (Option -070, corresponding to 7.0 inches) and the mounting thread profile (Option -02, corresponding to 3/4-14 NPT) to prevent mechanical interferences or fluid leaks at the machine interface wall.
Under high-temperature operation on steam turbine cases, thermal growth must be calculated. Ensure that the probe penetration depth accounts for thermal expansion of the machine rotor and stator to avoid physical contact between the probe tip and the target shaft. Lock the main thread assembly firmly with the locking ring to stop vibration-induced drift during operation.
When installing or adjusting the internal sensor, always disconnect the proximity coaxial connector before rotating the housing. If the housing is threaded into the machine casing with the cable connected, the internal coaxial lead will twist and experience mechanical failure or shield degradation. Ensure a minimum thread engagement of 5 full turns on the NPT fitting to guarantee environmental sealing.
Ensure the monitored machinery is completely de-energized, depressurized, and allowed to cool to ambient temperature before attempting to remove or install any probe housing assembly. Residual casing pressure or hot fluid blowback can result in severe physical injury.
Verify that the mounting port thread on the machine casing matches the 3/4-14 NPT thread profile of the housing.
Apply an approved high-temperature industrial thread sealant (such as PTFE or nickel anti-seize) to the male NPT threads.
Thread the housing into the machine wall, maintaining alignment, and tighten to specification. Do not overtighten to prevent thread stripping.
Route the internal probe cable through the conduit outlet, calibrate the sensor gap using an external volt/ohmmeter, and secure the locknuts.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
United States
|
Implement a 3-SPST switch XOR light circuit in LogixPro or RSLogix 500 using an internal relay bit. Includes truth tables, boolean equations, and verified.
Integrate Allen-Bradley CompactLogix, Caterpillar ATS, and generators into DeltaV DCS over Modbus RTU. Covers ProSoft MVI69-MCM, Miille DIN266 gateways.
ONS instruction fires but the OTE coil never latches in Studio 5000 because the one-shot is only true for one scan. Use OTL/OTU or seal-in logic instead.
Configure Allen-Bradley Kinetix 5500 servo drives on EtherNet/IP. Covers CIP Sync, IEEE 1588 V2 timing, Stratix selection, DLR topology, and HMI.
A moving-average filter is the sliding-window smoother most instrument engineers drop into DCS and PLC analog paths. Here is how the window works, how N and sample time set lag, and when a...
On Frame 5–9 gas turbines, GE Mark VI and Mark VIe run control as function-block application software. This article maps process, protection, and sequencing functions—and what Toolbox ST access...
