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74712-06-05-02-00

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The Bently Nevada 74712-06-05-02-00 High-temperature Two-wire Transducer is a specialized moving-coil velocity transducer system engineered to measure absolute casing, bearing housing, or structural vibration relative to free space.
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Technical specifications for 74712-06-05-02-00

  • Manufacturer:
    Bently Nevada
  • Part Number:
    74712-06-05-02-00
  • Product Family:
    9200 and 74712 Seismoprobe Velocity Transducers
  • Product Type:
    High-temperature Two-wire Transducer
  • Stock:
    1
  • Transducer Mounting Angle:
    0 ±100
  • Minimum Operating Frequency Option:
    10 Hz (600 cpm)
  • Mounting Base:
    No base; 1/2-20 UNF-3A stud
  • Connector Option:
    Top Mount
  • Standard Temperature:
    -20°F to +400ºF (-29°C to +204ºC)
  • Mounting Torque:
    5.6 N•m (50 in•lb)
  • Gasket Material:
    Silicone
  • Sensitivity Temperature Coefficient:
    0.2%/°C
  • Weight:
    0.48 kg
  • Estimated shipping dimensions:
    16 × 14 × 12 cm
  • 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 Configuration & Programming Monitoring & Control

Features:

  • High-Temperature Vibration Measurement Solution for Demanding Industrial Environments
  • Moving-Coil Technology Delivering Direct Velocity Output Without External Power
  • Compatible with Bently Nevada 3500 Monitoring Systems and Portable Data Collectors
The Bently Nevada 74712-06-05-02-00 High-temperature Two-wire Transducer continuously converts mechanical vibration into a voltage output directly proportional to the transducer's vibration velocity, providing reliable measurement data through simple two-wire connectivity to monitoring systems and portable diagnostic equipment. Moving-coil transducers are less sensitive to impact or impulsive excitation than solid-state velocity transducers, which are inherently accelerometers with embedded integration electronics, making the 74712-06-05-02-00 a robust choice for environments with significant mechanical shock or transient events.

The 74712-06-05-02-00 provides essential velocity measurement functions for machinery protection and condition monitoring, and is a critical component of the vibration monitoring path, directly affecting the accuracy and availability of vibration data for the overall monitoring system. One or more 74712-06-05-02-00 transducers are deployed per machine train depending on the number of measurement points and desired monitoring coverage. The 74712-06-05-02-00 is mounted directly on bearing housings, casings, or structural surfaces using appropriate mounting studs or adhesive techniques, and is always positioned at the vibration measurement point closest to the source of mechanical motion.

For comprehensive machinery protection applications, the 3500 System requires the 74712-06-05-02-00 transducer connected through appropriate cabling to the monitoring rack. In addition to standard continuous monitoring operation, the 74712-06-05-02-00 also supports route-based data collection. The 74712-06-05-02-00 measurement path executes signal transmission using the two-wire design specified in the transducer specifications.

The 74712-06-05-02-00 Bently Nevada High-temperature Two-wire Transducer may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 74712-06-05-02-00 High-temperature Two-wire Transducer 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 74712-06-05-02-00 High-temperature Two-wire Transducer Specs

General

  • Manufacturer Bently Nevada
  • Model 74712-06-05-02-00
  • Condition New Original ready stock
  • Product Family 74712-06-05-03-00,74712-06-05-04-00
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.
  • Steam and Gas Turbines: Monitors structural casing and exhaust frame vibrations under extreme heat.
  • Industrial Fans and Blowers: Tracks bearing housing stability on large air-handling units.
  • Large Motors and Pumps: Measures velocity levels to detect early mechanical degradation.
  • High-Impact Environments: Replaces sensitive solid-state sensors in areas prone to cross-axis shock.
  • Route-Based Diagnostics: Enables quick field testing since the sensor requires no external power.
  • Zero Programming Required: This is a passive analog device with no digital firmware or software interfaces.
  • Fixed Hardware Profile: The model options lock the sensor to a 10 Hz frequency threshold and a top connector.
  • Scale Factor Setup: You must configure your receiver module to a sensitivity of 20 mV/mm/s (500 mV/in/s).
  • Signal Conversion: Requires an external 9513 Velocity-to-Displacement Converter (VDC) if displacement data is needed.
  • Signal Transmission: Sends a low-impedance AC voltage signal proportional to the vibration velocity.
  • Cabling Limits: Supports a maximum cable loop distance of 305 meters (1,000 feet) of shielded twisted-pair wire.
  • System Compatibility: Integrates directly into Bently Nevada 3500/42M protection monitors or legacy 3300 racks.
  • Data Integration: Feeds continuous waveforms into System 1 software for asset condition monitoring and alert triggering.
Description
The Bently Nevada 74712-06-05-02-00 High-temperature Two-wire Transducer is a member of the Seismoprobe Velocity Transducer Systems family, specifically engineered to measure absolute (relative to free space) bearing housing, casing, or structural vibration in demanding industrial environments. The 74712-06-05-02-00 is a two-wire design that leverages moving-coil technology to deliver a voltage output directly proportional to the transducer's vibration velocity. This 74712-06-05-02-00 model is particularly distinguished by its high-temperature capability, making it suitable for installations where elevated operating temperatures are prevalent.

The 74712-06-05-02-00 is designed to address the challenges of monitoring rotating machinery in harsh thermal conditions where standard transducers would fail or degrade prematurely. The 74712-06-05-02-00 solves the critical problem of obtaining reliable vibration velocity data in high-temperature zones such as steam turbines, gas turbines, and heavy-duty industrial compressors, where bearing housing and casing vibration monitoring is essential for predictive maintenance and operational safety. By providing accurate velocity measurements without the need for external power, the 74712-06-05-02-00 eliminates the complexity and reliability concerns associated with powered sensor systems in thermally challenging environments.

The 74712-06-05-02-00 finds extensive application across power generation, oil and gas, petrochemical, and heavy manufacturing industries. In power plants, the 74712-06-05-02-00 is commonly deployed on steam turbine bearing housings and generator casings to monitor absolute vibration levels and detect mechanical faults such as rotor imbalance, misalignment, or bearing degradation. In the oil and gas sector, the 74712-06-05-02-00 is installed on gas compressor skids and turboexpanders where high process temperatures are routine. The 74712-06-05-02-00 is also widely utilized in steel mills, cement plants, and pulp and paper facilities for monitoring large motors, fans, and pumps operating under thermal stress.
Alternative Names
74712 06 05 02 00 74712-06-05-02-01 74712-06-05-02-04 74712-06-05-03-00 74712-06-05-04-00 74712-07-05-02-00
Technical notes
As part of the prestigious Bently Nevada Seismoprobe velocity sensor system family, the 74712-06-05-02-00 employs moving-coil technology to provide a voltage output proportional to the vibration velocity of the device. Unlike solid-state velocity sensors, which are essentially accelerometers with embedded integrated electronics, the 74712-06-05-02-00's moving-coil design significantly reduces its sensitivity to shock or pulse excitation, thus ensuring highly accurate data integrity even in harsh industrial environments.
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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 types of machinery are typically monitored with the 74712-06-05-02-00?
Common applications include gas turbines, steam turbines, industrial pumps, large fans, compressors, and other rotating machinery that operate under high temperatures and demanding mechanical loads.
Why is the 74712-06-05-02-00 valuable for turbine monitoring applications?
Turbines often experience extreme operating temperatures and continuous mechanical stress. The 74712-06-05-02-00 delivers dependable vibration measurements that help operators identify abnormal conditions before they lead to costly equipment failures.
What sensing principle is used by the 74712-06-05-02-00?
The transducer utilizes moving-coil technology, which generates a vibration signal directly from mechanical motion. This design allows the sensor to operate without requiring an external power source.
Does the 74712-06-05-02-00 require an external power supply?
No. Because of its moving-coil design, the 74712-06-05-02-00 is self-generating and does not require external excitation or power. This simplifies installation and reduces system complexity.

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