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330877-080-37-05

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The 330877-080-37-05 features an external cable structure and armor protection, ensuring stable and reliable operation even in harsh industrial environments.
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Technical specifications for 330877-080-37-05

  • Manufacturer:
    Bently Nevada
  • Part Number:
    330877-080-37-05
  • Product Family:
    3300 XL 50mm Proximity Transducer System
  • Product Type:
    External Cable
  • Stock:
    1
  • Cable Length:
    8.0 meters (26.2 feet)
  • Armor and Cable Option:
    FluidLoc ext. cable w/ armor
  • Operating & Storage Temperature:
    -51°C to +200°C (-31°F to +392°F)
  • Output Resistance:
    50 Ω
  • Cable Capacitance:
    69.9 pF/m (21.3 pF/ft), typical
  • Field Wiring Size:
    0.2 to 1.5 mm² (16–24 AWG)
  • Weight:
    0.94 kg
  • Estimated shipping dimensions:
    28x28x3cm
  • 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 Environmental Ratings Communication & Connectivity

Features:

  • Interface Between the Universal AC Power Source and 3300 XL 50 mm Transducer System
  • Combines Capability of High-Temperature Signal Transmission with Armored Cable Protection
  • Operates in Conjunction with the 50 mm Probe and 3300 XL 50 mm Proximitor Sensor
The 330877-080-37-05 operates as the 8.0-meter Extension Cable in the 3300 XL 50 mm Transducer System, providing reliable signal transmission between the probe and proximitor sensor. It continuously maintains signal integrity across its 8.0 meters (26.2 feet) length while withstanding ambient temperatures up to 200°C (392°F) continuous and intermittent spikes up to 250°C (482°F). Seamless electrical connection is standard with the 330877-080-37-05, however using the FluidLoc cable construction with armor protection will ensure reliable performance in harsh steam turbine environments where moisture and mechanical damage are present. The 330877-080-37-05 has made improvements in several areas over previous extension cable designs in addition to incorporating high-temperature FluidLoc technology within the 50 mm transducer line.

The 330877-080-37-05 provides essential connection functions common to the entire transducer system, and is a critical component of the measurement path, directly affecting the proper, normal operation of the differential expansion monitoring system. One 330877-080-37-05 extension cable is required per probe depending on the installation distance from the proximitor sensor. The 330877-080-37-05 occupies the connection pathway between probe and sensor and is always located in the signal transmission chain (between the 50 mm probe and the 3300 XL 50 mm Proximitor Sensor).

For Dual Redundant Measurement applications, the 3300 XL 50 mm System requires two separate transducer assemblies each with their own 330877-080-37-05 extension cable installed in the measurement path. In addition to standard single cable operation, the redundant configuration also performs complementary monitoring. The 3300 XL 50 mm dual transducer configuration executes differential expansion measurement using the long linear range specified in the 50 mm probe options. Using this method, the redundant measurement system continually monitors the rotor position from both sides of the collar. If the system detects that one measurement path is no longer providing stable output (outside configured tolerance levels), it will automatically rely on the secondary path and maintain accurate differential expansion data for turbine protection.

The 330877-080-37-05 Bently Nevada 3300 XL 50 mm Extension Cable may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 330877-080-37-05 3300 XL 50 mm Extension Cable 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 330877-080-37-05 3300 XL 50 mm Extension Cable Specs

General

  • Manufacturer Bently Nevada
  • Model 330877-080-37-05
  • Condition New Original ready stock
  • Product Family 330877-080-36-05,330877-080-37-00,330877-040-36-00
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.
  • Differential Expansion (DE): Specifically designed to measure the relative growth between a turbine rotor and its casing (stator) in large steam turbine generators.
  • Rotor Expansion (RX): Monitoring axial movement where standard-range probes are insufficient.
  • Aggressive Environments: Used in harsh steam turbine environments where moisture resistance and high-temperature durability are required.
  • System Upgrades: Serves as a robust replacement for older 7200 series 50 mm and 130713 DE systems.
  • Standard Operating/Storage: -51°C to +200°C (-60°F to +392°F).
  • Short-term Exposure: Can withstand up to +250°C (+482°F) for less than 24 hours.
  • Moisture & Fluid Resistance: Utilizes FluidLoc cable technology, which prevents moisture, oil, and other liquids from entering the probe tip or leaking out of the machine through the cable interior.
  • Outer jacket made of PFA (perfluoroalkoxyethylene) for high chemical resistance.
  • Connector Type: Features ClickLoc connectors, which are gold-plated and corrosion-resistant.
  • Locking Mechanism: Requires only finger-tight torque and "clicks" when secure to prevent loosening.
  • Strength: Rated for a tensile strength of 270 N (60 lbf) at the connectors.
  • Field Wiring: Recommended for use with three-conductor shielded triad cable for distances up to 305 meters (1,000 feet) to the monitor.
Description
The 330877-080-37-05 is a 3300 XL 50 mm Extension Cable specifically engineered for the 3300 XL 50 mm Transducer System. This extension cable features a total length of 8.0 meters (26.2 feet) and incorporates FluidLoc external cable construction with armor protection, ensuring robust performance in demanding industrial environments. The cable holds multiple agency approvals, confirming its compliance with stringent industry standards for safety and reliability.

The 330877-080-37-05 extension cable is designed to work seamlessly with the 50 mm probe and the 3300 XL 50 mm Proximitor Sensor, forming a complete transducer system that delivers a maximum linear range of 27.9 mm (1100 mils). This extended linear range makes the 330877-080-37-05 an essential component for applications requiring precise measurement capabilities across large displacement distances.

This 330877-080-37-05 extension cable is specifically designed for measuring differential expansion (DE) or rotor expansion (RX) in large steam turbine generators. It addresses the critical challenge of monitoring the growth rate differential between the turbine rotor and the machine stator (casing), which is fundamental to preventing catastrophic failures in power generation equipment. The cable's FluidLoc construction with armor protection ensures reliable signal transmission even in harsh steam turbine environments characterized by high temperatures, vibration, and potential exposure to moisture or contaminants.

The 330877-080-37-05 features High Temperature FluidLoc cable technology and incorporates special high-temperature ClickLoc connectors as standard equipment. These connectors facilitate secure, contamination-free connections between the probe and extension cable, while the removable collar design on the probe lead connector enables efficient routing through tight clearances during installation. The cable comes complete with connector protectors and a disposable connector protector installation tool, ensuring that all connection points remain free from contamination during deployment and maintenance procedures.

Engineered to withstand extreme thermal conditions, the 330877-080-37-05 supports continuous operation in environments reaching 200°C (392°F) and can endure intermittent temperature spikes up to 250°C (482°F). This thermal resilience makes the 330877-080-37-05 particularly suitable for steam turbine differential expansion monitoring applications where temperature fluctuations are common. The dual-seal design, combined with the FluidLoc cable construction, effectively prevents moisture ingress at the probe tip, ensuring long-term measurement accuracy and system reliability in high-humidity or condensing steam environments.
Alternative Names
330877-080-37-00 330877-080-37-CN 330877-080-36-05 330877-040-37-05 330877-080-36-00 33O877-O8O-37-O5 330877 080 37 05 330877-080-37-RU
Technical notes
The 330877-080-37-05 is a Bently Nevada 3300 XL 8 mm extension cable used to connect a proximity probe to a Proximitor sensor in machinery monitoring systems . This 8.0-meter (080) cable extends the total system length, requiring that probe length plus extension cable length match the Proximitor sensor's total length.
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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.
How does the 330877-080-37-05 perform in harsh environments?
With its FluidLoc armored construction, the cable ensures reliable signal transmission in environments with high temperature, vibration, moisture, and contaminants, typical of steam turbine applications.
What connector technology is used in the 330877-080-37-05?
The cable uses high-temperature ClickLoc connectors, which provide secure, contamination-resistant connections and maintain signal integrity under extreme conditions.
What installation advantages does the 330877-080-37-05 design offer?
The removable collar on the connector allows easier routing through tight spaces, making installation more efficient in compact turbine environments.
What accessories are included with the330877-080-37-05?
Each cable comes with connector protectors and a disposable connector protector installation tool to ensure clean and reliable connections during installation and maintenance

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