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21000-28-05-00-077-03-02

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The 21000-28-05-00-077-03-02 component consists of multiple integrated parts and is suitable for deployment in designated locations where ignition protection is critical.
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Technical specifications for 21000-28-05-00-077-03-02

  • Manufacturer:
    Bently Nevada
  • Part Number:
    21000-28-05-00-077-03-02
  • Product Family:
    21000, 24701, and 164818 Proximity Probe Housing A
  • Probe Cable:
    0.5 m (20 in)
  • Standoff Adapter:
    No standoff adapter
  • Probe Penetration:
    7.7 in
  • Mounting Thread:
    3/4-14 NPT
  • 3300 XL 8mm Probe Operating and storage:
    -51°C to +177°C (-60°F to +351°F)
  • Probe with Connector:
    3300 XL 8mm probe, selectable hazardous area approvals
  • Weight:
    1.05 kg
  • Estimated shipping dimensions:
    30.5x8.5x8.5cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Use Cases Performance & Efficiency Safety & Compliance

Features:

  • Interface Between the Proximity Probe and External Mounting Environment
  • Combines Capability of Probe Protection with Hazardous Area Safety Support
  • Operates in Conjunction with the 3300 XL 8mm Probe Series and Vibration Monitoring Systems
The 21000-28-05-00-077-03-02 operates as the Proximity Probe Housing Assembly for external probe mounting, providing secure mechanical protection and hazardous area certification for vibration monitoring applications. It continuously safeguards the integrated 3300 XL 8mm proximity probe with 0.5-meter cable and maintains explosion-proof integrity through its aluminum construction and sealed dome cover design. Seamless integration with conduit systems is standard with the 21000-28-05-00-077-03-02, however using the optional standoff adapter configuration will allow extended probe penetration depth for applications requiring greater reach beyond the standard 7.7-inch specification. The 21000-28-05-00-077-03-02 incorporates universal 3/4-14 NPT mounting thread capability and CSA hazardous area approvals within the probe housing assembly.

The 21000-28-05-00-077-03-02 provides essential housing functions common to external probe installations, and is a critical component of the measurement path, directly affecting the proper, normal operation of the overall vibration monitoring system. One 21000-28-05-00-077-03-02 housing assembly is required per external probe mounting point depending on the specific penetration depth and fitting requirements. The 21000-28-05-00-077-03-02 occupies a compact installation footprint and is always positioned at the machinery access point (external mounting location, the dedicated probe measurement position).

For applications requiring alternative material specifications, the 21000 series requires evaluation of the 24701 stainless steel housing assembly as a substitute option. In addition to standard aluminum construction, the 21000-28-05-00-077-03-02 configuration also performs reliable cable sealing. The 21000-28-05-00-077-03-02 fitting package executes cable retention using the internal seal grip specified in the housing options. Using this method, the cable sealing system continually accommodates three distinct cable diameter ranges. If the installation requires cable sizes from 1/8 to 3/16 inches, 1/4 to 5/16 inches, or 5/16 to 3/8 inches, it will automatically secure the probe cable and maintain environmental protection through the integrated grommet design.

The 21000-28-05-00-077-03-02 Bently Nevada Proximity Probe Housing Assembly may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 21000-28-05-00-077-03-02 Proximity Probe Housing Assembly Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Bently Nevada 21000-28-05-00-077-03-02 Proximity Probe Housing Assembly Specs

General

  • Manufacturer Bently Nevada
  • Model 21000-28-05-00-077-03-02
  • Condition New Original ready stock
  • Product Family 21000-28-05-00-077-03-01,21000-28-05-00-077-03-04
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • External Mounting: Primarily used to mount proximity probes externally, allowing for gap adjustment or probe replacement without disassembling the machine.
  • Machinery Health Monitoring: Deployed on critical rotating equipment like compressors, turbines, and pumps to monitor axial position and radial vibration.
  • Harsh Environments: Ideal for industrial settings where sensors need protection from oil, dust, and physical impact.
  • Maintenance Efficiency: The housing design allows technicians to access the probe and cable externally, significantly reducing downtime during sensor maintenance.
  • Durable Construction: Features a lightweight but impact-resistant aluminum body with a 304 stainless steel sleeve for mechanical rigidity.
  • Thermal Stability: Operates reliably in extreme temperatures, typically ranging from -51°C to +177°C (-60°F to +351°F).
  • Explosion-Proof Rating: Certified by the Canadian Standards Association (CSA) for use in North American hazardous areas (Class I, Div 1 & 2; Class II, Div 1 & 2).
  • API 670 Compliant: Fully meets the American Petroleum Institute’s (API) 670 standard for externally mounted proximity probe housings, ensuring it adheres to strict industry vibration monitoring requirements.
  • Environmental Protection: Rated as a CSA Type 4 enclosure, providing a high degree of protection against falling dirt, rain, sleet, snow, and windblown dust.
Description
The 21000-28-05-00-077-03-02 Proximity Probe Housing Assembly is specifically designed for externally mounting proximity probes in demanding industrial environments, providing a robust and reliable solution for vibration monitoring and machinery protection applications. This all-metal aluminum housing assembly ensures secure probe installation while maintaining hazardous area safety compliance.

The 21000-28-05-00-077-03-02 incorporates a 3300 XL 8mm proximity probe with connector, featuring selectable hazardous area approvals to meet various certification requirements. The assembly includes a 0.5-meter (20-inch) probe cable and is configured without a standoff adapter, with a probe penetration depth of 7.7 inches. The 21000-28-05-00-077-03-02 mounting thread specification is 3/4-14 NPT, and the fitting package includes one 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, and one cable seal grip with grommets accommodating cable sizes ranging from 1/8 to 3/16 inches, 1/4 to 5/16 inches, and 5/16 to 3/8 inches.

The 21000-28-05-00-077-03-02 assembly consists of several integrated components: a dome cover that screws into the housing body, threaded ports for conduit connections, a probe sleeve of optional length, O-rings for sealing, a reverse mount proximity probe, a thread seal, optional conduit fittings, and an optional standoff adapter. The 21000-28-05-00-077-03-02 is available with Canadian Standards Association (CSA) approvals and is rated explosion proof for hazardous areas, making it suitable for deployment in classified locations where ignition protection is critical.
Alternative Names
21000-28-05-00-077-03-01 21000-28-05-00-077-03-04 21000-28-05-00-077-04-02 21000-28-05-00-077-02-02 21000-28-05-00-077-01-02
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What components make up the housing assembly?
The unit includes a dome cover, threaded conduit ports, a probe sleeve, sealing O-rings, a reverse mount proximity probe, and thread sealing elements. Optional conduit fittings and standoff adapters are also available, allowing flexible configuration.
How does the assembly perform in hazardous environments?
The 21000-28-05-00-077-03-02 is available with CSA approvals and is rated explosion-proof. This ensures safe operation in classified hazardous areas where ignition protection is essential.
Why is this assembly important for industrial applications?
It provides a secure and protective enclosure for proximity probes, enabling accurate vibration monitoring in harsh conditions. This helps prevent equipment failure, improve reliability, and maintain safe operation in critical industrial systems.

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