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PRODUCT DESCRIPTION
High-temperature Seismoprobe moving-coil velocity transducer with 90-degree orientation
Bently Nevada 74712-03-11-02-00 is a high-temperature Seismoprobe velocity transducer for measuring absolute vibration of bearing housings, machine casings or structures. Its moving-coil element generates a velocity-proportional voltage without an external sensor supply, with this option calibrated for a 90-degree mounting orientation.
The configuration combines an isolated circular M10x1 base with a top-mounted connector and no agency approvals. Its minimum operating frequency is 4.5 Hz, and its temperature range extends to 204 C. Verify mounting orientation, instrument loading, cable suitability and representative vibration transmission before commissioning.
The configuration combines an isolated circular M10x1 base with a top-mounted connector and no agency approvals. Its minimum operating frequency is 4.5 Hz, and its temperature range extends to 204 C. Verify mounting orientation, instrument loading, cable suitability and representative vibration transmission before commissioning.
BEFORE YOU BUY
Confirm the complete installed configuration
ACTUAL APPLICATIONS
Application context for 74712-03-11-02-00
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.
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01 · Bearing housings
High-temperature bearing-support vibration measurement
The transducer converts absolute bearing-housing motion into a velocity signal. This 90-degree option requires a mounting location that preserves its calibrated orientation and receives representative rotor vibration. -
02 · Machine casings
Casing vibration channels for rotating machinery
A compatible monitoring or diagnostic instrument receives the moving-coil voltage from the top connector. Verify instrument loading and the mechanical vibration path rather than interpreting the signal as shaft-relative displacement. -
03 · Structures
Absolute vibration checks at structural mounting points
The Seismoprobe family measures structural motion relative to free space. The selected sensor must remain within its orientation, bandwidth and mounting limits for useful structural vibration measurements.
Technical specifications for 74712-03-11-02-00
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Product Model74712-03-11-02-00
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Product ParametersHigh-temperature moving-coil velocity transducer
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In stock1 unit
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ManufacturerBently Nevada
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Sensing principleSelf-powered two-wire moving coil
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Mounting orientation90 degrees +/-2.5 degrees, option 03
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Frequency response4.5 to 1000 Hz, +0/-3 dB typical
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Connector arrangementTop-mounted connector, option 02
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Mounting baseIsolated circular M10x1, option 11
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Approval optionNo approvals, option 00
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Sensitivity20 mV/(mm/s), +/-5% at the specified calibration orientation and load
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Calibration load10 kilohms between terminals A and B
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Coil resistance1.25 kilohms +/-5%
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Locked coil inductance125 mH typical
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Maximum dynamic displacement2.54 mm peak-to-peak
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Operating and storage temperature-29 to +204 C
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Relative humidityUp to 95%, noncondensing
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Mounting torque5.6 N m for the M10x1 base
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Transverse sensitivity+/-10% maximum at 100 Hz and 1.0 in/s
View all additional
Alternative Names
74712-03-11-02-00 Seismoprobe
90-degree high-temperature velocity transducer
74712 isolated M10x1 top-connector sensor
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
9200 AND 74712 SEISMOPROBE VELOCITY TRANSDUCERS
Velocity measurement from the machine housing
The Seismoprobe system consists of a moving-coil velocity transducer and a suitable interconnect cable. The sensor generates its own velocity-proportional voltage and connects to a compatible monitoring or diagnostic input.
This 74712 configuration uses a top-mounted connector, an isolated M10x1 base and a 90-degree calibration orientation. Its frequency response begins at 4.5 Hz, and sensitivity is specified with a 10 kilohm input load under the manufacturer's reference conditions.
Mounting on the bearing housing, casing or structure must provide representative vibration transmission. Use a protected installation with suitable cable routing, verify output polarity and loading, and do not transfer approval markings from a different ordering option.
Features:
- Two-wire self-generating velocity signal
- Top connector for the selected interconnect cable
- 90-degree measurement orientation and isolated M10x1 mounting
The Bently Nevada 74712-03-11-02-00 high-temperature absolute vibration velocity sensing requires the appropriate mounting, connections and configuration to be verified before system integration and commissioning.
INTERCHANGEABILITY
Verify the complete replacement identity before commissioning
Retain the complete 74712-03-11-02-00 reference when comparing a replacement. Orientation, mounting base, connector and approval option describe separate requirements, so a different 74712 order code is not automatically equivalent.
Changing sensor technology also requires an electrical and dynamic-response review. A solid-state velocity sensor may require power and may have different phase, frequency and mounting characteristics from this self-powered moving-coil device.
The reviewed manufacturer source does not establish an exact discontinuation date or an approved direct successor for this order code. Confirm the installed instrument, mounting point, cable, temperature and site approval requirements before selecting an alternative.
Features:
- Preserve the complete order code and calibrated orientation
- Check sensor power, input loading and frequency response before substitution
- Do not claim a direct successor without exact manufacturer evidence
The Bently Nevada 74712-03-11-02-00 high-temperature absolute vibration velocity sensing 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 74712-03-11-02-00 high-temperature absolute vibration velocity sensing 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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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
Full suffix recorded -
Condition checked
Label and appearance -
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Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about 74712-03-11-02-00
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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What does the first 03 option mean on 74712-03-11-02-00?
It specifies a 90-degree mounting orientation within +/-2.5 degrees and a minimum operating frequency of 4.5 Hz. It is not the same calibration orientation as the 01 option. -
Does this Seismoprobe need a 24 V sensor supply?
No. The moving-coil transducer produces a voltage proportional to vibration velocity without external sensor power. The connected instrument must have a suitable input and loading arrangement. -
Which mounting thread and tightening torque apply to the isolated base?
Option 11 is an isolated circular M10x1 base. The manufacturer's mounting-torque table specifies 5.6 N m for the M10x1 mounting-base option. -
Can ordinary 9200 temperature limits be used for this 74712?
No. The 74712 is the high-temperature version: its operating and storage range is -29 to +204 C. The 9200 range in the same document is -29 to +121 C. -
Does the isolated base mean this configuration has ATEX approval?
No. The final 00 option means no approvals. Base isolation and agency approval are separate ordering choices; certification cannot be inferred from the mounting base alone. -
What input load is used to specify its output sensitivity?
Sensitivity is specified with a 10 kilohm load between A and B, at the stated temperature, vibration and calibration orientation. Different instrument loading should be checked against the controlled installation documentation. -
Can a correctly wired sensor still produce a misleading casing-vibration reading?
Yes. The mounting location must receive representative vibration from the rotor, and installation affects amplitude and frequency response. An unsuitable location or poor mounting can create signals that do not represent actual machine vibration.
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74712-03-11-02-00High-temperature moving-coil velocity transducerManufacturer: Bently NevadaView Details
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