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- 21000, 24701, and 164818 ProbeHousing Assemblies
- 21000-28-05-00-030-04-02
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PRODUCT DESCRIPTION
External mounting in a 3300 XL 8 mm measurement loop
Bently Nevada 21000-28-05-00-030-04-02 is an aluminum housing assembly for externally mounted proximity probes. Its ordering configuration includes a 3300 XL 8 mm probe with a 0.5 m cable, no standoff adapter, and a nominal probe penetration of 3.0 inches.
The assembly uses a stainless steel sleeve and a 3/4-14 NPT mounting connection, with one NPT plug specified by the fittings option. Confirm the complete probe system, mounting geometry and applicable approval documentation before installation; a standard 21000 designation is not a CA21000 explosion-proof designation.
The assembly uses a stainless steel sleeve and a 3/4-14 NPT mounting connection, with one NPT plug specified by the fittings option. Confirm the complete probe system, mounting geometry and applicable approval documentation before installation; a standard 21000 designation is not a CA21000 explosion-proof designation.
BEFORE YOU BUY
Confirm the complete installed configuration
ACTUAL APPLICATIONS
Application context for 21000-28-05-00-030-04-02
These uses are supported by the applicable manufacturer documentation. Series-level guidance does not prove that this complete order was installed in a particular customer project.
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01 · SHAFT MONITORING
Fluid-film-bearing machine vibration measurement
The configured 8 mm probe can serve the applicable 3300 XL vibration system while the housing provides its external mechanical mounting. Confirm the installed probe geometry and complete transducer system rather than treating the housing alone as a measuring instrument. -
02 · PHASE REFERENCE
Keyphasor pickup mounting on rotating machinery
The included probe belongs to a family used for Keyphasor reference measurements. Use this assembly only where its mounting thread and penetration suit the machine, with the target feature and connected electronics checked for the intended reference signal. -
03 · MACHINERY SPEED
External speed-probe installations in monitoring systems
An applicable 3300 XL 8 mm system can measure rotational speed with a suitable target. This housing supplies the external support and conduit interface; any overspeed-protection duty requires the separate manufacturer application assessment identified in the transducer documentation.
Technical specifications for 21000-28-05-00-030-04-02
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Product Model21000-28-05-00-030-04-02
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Product ParametersAluminum proximity probe housing
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In stock1 unit
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ManufacturerBently Nevada
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Included probe3300 XL 8 mm; selectable hazardous-area approval option
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Probe cable length0.5 m
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Standoff adapterNot fitted
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Nominal probe penetration3.0 in (76.2 mm)
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Conduit hardwareOne 3/4-14 NPT plug
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Mounting connection3/4-14 NPT
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Housing body materialAluminum
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Probe sleeve material304 stainless steel
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Cover connectionScrew-on dome cover
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Penetration adjustmentNominally +/-0.5 in (13 mm)
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External housing standardAPI 670 housing requirements
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Enclosure protectionCSA Type 4 family rating
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Installed probe temperature-51 to +177 C; pressure-seal caution below -34 C
View all additional
Alternative Names
21000 aluminum proximity-probe housing
3.0-inch penetration probe housing assembly
3300 XL 8 mm external mounting assembly
SYSTEM & REPLACEMENT CHECK
Information needed before ordering
Three direct checks to secure your system integration and minimize ordering risks.
Information
System integration
Replacement check
Manuals & support
21000 PROBE HOUSING ASSEMBLIES
External mounting in a 3300 XL 8 mm measurement loop
This 21000 assembly provides the housing and reverse-mount probe arrangement at the machine. Its A28 option specifies the 3300 XL 8 mm probe family; the housing is not a Proximitor signal conditioner or a complete monitor.
The configured probe has a 0.5 m cable. Match it to the required extension cable and Proximitor system, and check the 3.0-inch penetration, 3/4-14 NPT mounting connection and no-standoff arrangement against the installed machine drawing.
Applicable 3300 XL systems support vibration, position, Keyphasor and speed measurements. The suitability of a particular installation depends on its target, mechanical arrangement and approved electronics, not merely the presence of a compatible probe in the housing.
Features:
- External probe mounting and conduit interface
- Configured 3300 XL 8 mm sensing element
- Electrical system and target must be matched
The Bently Nevada 21000-28-05-00-030-04-02 probe housing assembly requires the appropriate mounting, connections and configuration to be verified before system integration and commissioning.
INTERCHANGEABILITY
Verify the complete replacement identity before commissioning
Compare the full order code before replacing this assembly. Probe type, cable length, standoff, penetration, conduit hardware and mounting thread are independent configuration choices and must match the intended installation.
Bently Nevada identifies the 31000/32000 family as a newer housing option where an explosion-proof enclosure is not required. This is family guidance, not confirmation that a particular 31000 order code directly replaces this 21000 configuration.
The reviewed manufacturer datasheet does not provide an exact-model discontinuation date or a guaranteed drop-in successor. Retain the distinction between ordinary 21000 and CA21000 enclosure designations, and verify current approval documents for the actual assembly.
Features:
- Match all mechanical and probe options
- Do not equate standard and CA housings
- No verified exact-model drop-in successor
The Bently Nevada 21000-28-05-00-030-04-02 probe housing assembly requires replacement verification against the complete installed configuration and current manufacturer documentation.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: The linked files are Amikon-hosted reference packages, not direct manufacturer downloads. Refer to the applicable Bently Nevada documentation and supplied product identity before use. Accessories and additional documents are included only when expressly listed in the quotation.
Features:
- Verify document identity before procurement or installation
- Match the complete order to the manufacturer document scope
- Accessories are supplied only when listed in the quotation
Documentation for the Bently Nevada 21000-28-05-00-030-04-02 probe housing assembly must be checked for document applicability before installation or commissioning.
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Important notice
Manuals, software, firmware, cables, calibration data and accessories are included only when listed in the quotation. AMIKON is an independent supplier and is not affiliated with or authorised by the manufacturer.
This content has been produced using multiple sources. Takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
BUYER INFORMATION
Commercial terms without hidden steps
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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01
Shipping & delivery
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DispatchEligible stock: same / next day
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CarriersDHL, FedEx or UPS
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Ship fromXiamen, China
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Packed sizePacked dimensions unconfirmed
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Shipping weightGross weight unconfirmed
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Payment & customs
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PaymentBank transfer (T/T)
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CurrenciesUSD · EUR · GBP · RMB
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Credit cardsNot accepted
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HS referenceClassification unconfirmed
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OriginUSA
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Warranty & returns
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Warranty12 months from AMIKON
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InspectionLabel, condition and packing checks
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ReturnsPrior RMA authorisation required
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CompatibilityConfirm before order
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OEM warrantyDoes not apply
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Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Part checked
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Tracking supplied
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Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about 21000-28-05-00-030-04-02
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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Does this 21000 configuration include an 8 mm probe?
Yes. Option 28 specifies a 3300 XL 8 mm probe with a selectable hazardous-area approval option, and 05 specifies its 0.5 m cable. The exact approval and installation conditions still require verification. -
Is penetration code 030 equal to 30 mm?
No. The 21000 penetration option is expressed in tenths of an inch. Code 030 specifies 3.0 inches, equivalent to 76.2 mm, and must be matched to the machine drawing. -
Is a standoff adapter supplied with 21000-28-05-00-030-04-02?
No. The third option, 00, means there is no standoff adapter. Adding one changes the mounting geometry and must not be assumed to preserve the original penetration. -
What conduit hardware is included with fittings option 04?
The published option specifies one 3/4-14 NPT plug only. It does not specify an additional conduit fitting or a cable-seal assembly. -
Can this ordinary 21000 be treated as an explosion-proof CA21000?
No. The datasheet distinguishes the CA housing versions and their approval conditions. A probe approval option does not by itself establish explosion-proof certification for the complete ordinary 21000 assembly. -
Can a newer 31000 housing replace this assembly without further checks?
Do not assume a drop-in replacement. The manufacturer recommends the newer family where explosion-proof housing is not required, but the mounting connection, penetration, environmental requirements and probe configuration must still match the application.
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