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Bently Nevada 330851-04-00-27-10-01-00
· Product image is representative; revision or series may vary. Contact us to request a specific version.
Ships by Thursday, September 17

330851-04-00-27-10-01-00

Armored differential expansion proximity probe

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Payment is by bank wire only in RMB/CNY, GBP, EUR or USD. Amikon does not accept credit cards or provide credit terms. Cleared payment is required before shipment unless the written quotation expressly states otherwise.
Product Condition
Factory New These are new and current items that are procured directly from the manufacturer.
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PRODUCT DESCRIPTION

3300 XL 25 mm armored proximity probe, smooth 1.06 in side-exit case

Bently Nevada 330851-04-00-27-10-01-00 is a 3300 XL 25 mm proximity probe with a smooth side-exit case and stainless-steel armor. The verified ordering format specifies a 2.7-inch case and a 1.0 m total probe length for use within a matched differential-expansion measurement system.

The probe requires a compatible extension cable and 3300 XL 25 mm Proximitor Sensor; it is not a complete standalone transducer system. The selected approval option is 00, meaning no approvals. Confirm target geometry, total system length, mechanical clearance and the full ordering reference before installation.
ACTUAL APPLICATIONS

Application context for 330851-04-00-27-10-01-00

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.
  • 01 · Steam turbines

    Differential expansion monitoring at turbine rotor collars

    A matched 25 mm transducer system measures rotor growth relative to the casing. Two probes viewing the same collar side can provide redundant measurements when sufficient collar height is available.
  • 02 · Complementary sensing

    Extended differential-expansion measurement across opposite collar faces

    The manufacturer describes two complementary-input transducers on opposite sides of a collar to increase the measurable expansion range. Target geometry and the complete measurement-system configuration must support that arrangement.
  • 03 · Ramp measurements

    Rotor-ramp differential expansion with radial-motion compensation

    A supported arrangement uses one probe viewing a rotor ramp and another viewing a separate ramp or rotor location. The second measurement compensates for radial movement, while the design must account for the stated additional measurement error.

Technical specifications for 330851-04-00-27-10-01-00

  • Product Model
    330851-04-00-27-10-01-00
  • Product Parameters
    Armored differential expansion proximity probe
  • In stock
    1 unit
  • Manufacturer
    Bently Nevada
  • Case configuration
    Smooth 1.06 in diameter, side exit, option 04
  • Overall case length
    2.7 in (68.58 mm), ordering field 027
  • Total probe length
    1.0 m, option 10
  • Protective armor
    Flexible AISI 302 stainless steel with PFA jacket, option 01
  • Agency approval option
    No approvals, option 00
  • Probe tip material
    Polyetheretherketone (PEEK)
  • Probe case material
    AISI 304 stainless steel
  • Probe cable construction
    75 ohm triaxial PFA-insulated FluidLoc cable
  • Probe DC resistance
    6.2 +/-0.5 ohms, center to outer conductor for 1.0 m probe
  • Probe operating and storage temperature
    -35 to +200 C
  • Short-term temperature exposure
    +250 C maximum for less than 24 hours
  • Minimum cable bend radius
    25.4 mm with or without armor
  • Connector-to-connector torque
    Finger tight recommended; 0.565 N m maximum
  • Matched-system linear range
    12.7 mm under specified 3300 XL 25 mm system conditions
  • Matched-system average scale factor
    0.787 V/mm (20 mV/mil) nominal
View all additional

Alternative Names

330851-04-000-027-10-01-00 3300 XL 25 mm side-exit probe 330851 armored differential-expansion probe
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
3300 XL 25 MM PROXIMITY TRANSDUCER SYSTEM

Differential expansion measurement with a complete 25 mm system

The 3300 XL 25 mm system combines a proximity probe, extension cable and Proximitor Sensor. Its nominal 0.787 V/mm scale factor and 12.7 mm linear range support differential-expansion measurements on suitable steam-turbine rotor and casing arrangements.
This probe uses the smooth 1.06-inch side-exit case with a 2.7-inch case length, one-metre lead and stainless-steel armor. The official three-digit length fields are 000 and 027; the existing short-form record is retained without changing its URL or SKU.
System performance depends on the specified target, gap, electrical length and environmental conditions. Match all three components, provide sufficient target area and connector protection, and use the appropriate mounting arrangement for the collar or ramp being measured.

Features:

  • Probe, extension cable and Proximitor form one matched system
  • One-metre probe lead is not the complete system length
  • Collar or ramp geometry controls the differential-expansion arrangement
The Bently Nevada 330851-04-00-27-10-01-00 differential expansion proximity sensing in a matched 25 mm transducer system requires the appropriate mounting, connections and configuration to be verified before system integration and commissioning.
INTERCHANGEABILITY

Verify the complete replacement identity before commissioning

Replacement selection must match the full 330851 configuration, including smooth case diameter, side exit, case length, total probe length, armor and approval option. Similar appearance or a shared 25 mm sensing size does not establish mechanical equivalence.
The manufacturer describes upgrading standard 7200 25 mm, 7200 35 mm and 25 mm DE Integral systems to 3300 XL 25 mm. That conversion requires replacement of the probe, extension cable and Proximitor Sensor together, even where the output permits the existing monitor configuration to remain.
The inspected official datasheet does not identify a discontinuation date or a new direct successor for this exact order code. Confirm any proposed alternative against the installed target, mounting bracket, electrical length and current manufacturer documentation before approving substitution.

Features:

  • Compare all ordering fields and physical side-exit clearance
  • Replace all three components for the documented legacy-system upgrade
  • Do not equate monitor-output compatibility with one-part interchangeability
The Bently Nevada 330851-04-00-27-10-01-00 differential expansion proximity sensing in a matched 25 mm transducer system 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 330851-04-00-27-10-01-00 differential expansion proximity sensing in a matched 25 mm transducer system must be checked for document applicability before installation or commissioning.

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.
  • 01

    Shipping & delivery

    Dispatch
    Eligible stock: same / next day
    Carriers
    DHL, FedEx or UPS
    Ship from
    Xiamen, China
    Packed size
    Packed dimensions unconfirmed
    Shipping weight
    Gross weight unconfirmed
  • 02

    Payment & customs

    Payment
    Bank transfer (T/T)
    Currencies
    USD · EUR · GBP · RMB
    Credit cards
    Not accepted
    HS reference
    Classification unconfirmed
    Origin
    USA
  • 03

    Warranty & returns

    Warranty
    12 months from AMIKON
    Inspection
    Label, condition and packing checks
    Returns
    Prior RMA authorisation required
    Compatibility
    Confirm before order
    OEM warranty
    Does not apply
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
  • Part checked

    Full suffix recorded
  • Condition checked

    Label and appearance
  • Packing checked

    Antistatic protection
  • Tracking supplied

    Established couriers
  • Sandy Lin

    Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS

Questions buyers ask about 330851-04-00-27-10-01-00

Direct answers about identity, compatibility, stock, warranty, payment and shipping.
  • How is the shortened reference mapped to the official 330851 ordering format?

    The official format is 330851-AA-BBB-CCC-DD-EE-FF. The lookup form for this record is 330851-04-000-027-10-01-00; only leading zeros are restored in the two three-digit fields. Verify the complete physical label before replacement.
  • Does the 27 case-length field mean 27 mm?

    No. The zero-padded field is 027, and smooth case types use 0.1-inch increments. It therefore specifies 2.7 inches, equivalent to 68.58 mm, rather than 27 mm.
  • Can this probe be connected directly as a complete differential-expansion system?

    No. The 3300 XL 25 mm system comprises the probe, a matching extension cable and a 3300 XL 25 mm Proximitor Sensor. The total system length and calibration conditions must be matched.
  • What changes are required when upgrading an older 7200 differential-expansion system?

    The manufacturer requires replacement of every transducer-system component: probe, extension cable and Proximitor Sensor. The compatible output can avoid monitor-configuration changes, but replacing only one old-system component is not the documented migration method.
  • Is the armored probe approved for hazardous areas?

    Armor and approval are independent options. This reference selects stainless-steel armor with option 01 but ends in approval option 00, meaning no approvals.
  • Can the probe remain at 250 C continuously?

    No. Its normal operating and storage limit is +200 C. The +250 C allowance is a short-term maximum for less than 24 hours, and the extension cable and Proximitor have their own temperature limitations.
  • Which mechanical precautions apply to the lead and connector?

    Maintain at least a 25.4 mm cable bend radius, protect connectors from contamination and use finger-tight connector engagement. The published connector-to-connector maximum torque is 0.565 N m.
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