Features:
- Interface Between the Probe and 3300 XL 25 mm Proximitor Sensor
- Combines Signal Transmission Capability with High-Temperature FluidLoc Cable Protection
- Operates in Conjunction with the 3300 XL 25 mm Probe and 3300 XL 25 mm Proximitor Sensor
The 330854-040-25-00 operates as the 4.0-metre Extension Cable in the 3300 XL 25 mm Transducer System, providing reliable signal transmission between the 25 mm probe and the Proximitor Sensor. It continuously maintains signal integrity across its 4.0 metres (13.1 feet) length and facilitates the 0.787 V/mm (20 mV/mil) output transmission through the armored high-temperature FluidLoc cable construction to support accurate differential expansion measurement on mid-size to large steam turbine generators. Seamless signal continuity is standard with the 330854-040-25-00, with its special high-temperature ClickLoc connectors ensuring secure connections at both the probe and sensor interfaces. The 330854-040-25-00 has made improvements in several areas over previous extension cable designs in addition to incorporating armored high-temperature FluidLoc cable capability within harsh steam turbine environments.
The 330854-040-25-00 provides essential connection functions common to the entire 3300 XL 25 mm Transducer System, and is a critical component of the measurement path, directly affecting the proper, normal operation of the overall differential expansion monitoring system. One 330854-040-25-00 extension cable is required per probe-sensor connection depending on the installation distance. The 330854-040-25-00 occupies the connection position between the probe and Proximitor Sensor and is always utilized to bridge the physical gap between these components.
For Dual Transducer Measurement applications, the 3300 XL 25 mm System requires additional 330854-040-25-00 extension cables installed to connect complementary probe arrangements. In addition to standard single transducer operation, the dual configuration also performs redundant measurement. The 3300 XL 25 mm dual transducer configuration executes differential expansion measurement using the mounting arrangements specified in the system options. Using this method, the redundant measurement system continually monitors the collar or ramp position from two observation points. If the system detects that one transducer is no longer providing stable measurement (due to target movement beyond linear range), it can utilize the complementary transducer data and maintain accurate differential expansion tracking.
The 330854-040-25-00 Bently Nevada 3300 XL 25 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 330854-040-25-00 3300 XL 25 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 330854-040-25-00 3300 XL 25 mm Extension Cable Specs
General
- Manufacturer Bently Nevada
- Model 330854-040-25-00
- Condition New Original ready stock
- Product Family 330854-040-24-00,330854-040-25-05,330854-080-25-05
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) Monitoring: Its primary use is measuring the relative movement between a turbine rotor and its casing (stator) in mid-size to large steam turbine generators.
- High-Temperature Environments: Designed for "maximum survivability" in steam turbine environments, it maintains accuracy at continuous temperatures up to 200°C (392°F).
- Leakage Prevention: The "FluidLoc" feature prevents oil and other liquids from leaking out of the machine through the cable's interior.
- Hazardous Area Certification: The "00" suffix in the part number indicates no specific agency approvals. However, the system is designed to meet ATEX/IECEx and CSA standards for intrinsic safety when installed with appropriate zener barriers or galvanic isolators.
- EMI/RFI Immunity: The system satisfies European CE mark requirements for electromagnetic compatibility, allowing installation in non-metallic housings without performance loss.
- Environmental Protection: It features gold-plated, corrosion-resistant connectors and is tested for damp heat (IEC 68-2-3) to handle 100% condensing humidity when connectors are protected.
- System Compatibility: It is a vital component of the 3300 XL 25 mm Proximity Transducer System. It is backward compatible with older 7200 series 25 mm and 35 mm systems, though all components (probe, cable, and sensor) must be replaced together for a full upgrade.
- Connector Type: Uses specialized high-temperature ClickLoc connectors. These are finger-tightened until they "click," ensuring a secure, vibration-resistant connection without the need for tools.
- Mounting Support: Often used with optional Sliding Brackets that allow for precise gapping and alignment within the turbine case.
- Field Wiring: Proximitor Sensors feature SpringLoc terminal strips, which simplify and speed up field wiring by eliminating screw-type clamps that might loosen over time.