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The 330877-080-37-05 is an 8.0-meter 3300 XL 50 mm armored extension cable applied to withstand the harshest steam turbine differential expansion (DE) environments. It operates continually and maintains accuracy in high temperatures up to 200°C (392°F), and withstands intermittent thermal exposure up to 250°C (482°F).
FluidLoc barrier process
75-ohm triaxial shielding structure
ClickLoc Miniature Coaxial Connector
The 3300 XL 50 mm Transducer System consists of a separate 50 mm probe, an extension cable, and a 3300 XL 50 mm Proximitor Sensor. The large diameter coil gives this system a maximum linear range of 27.9 mm (1100 mils), the longest linear range of our eddy current transducer line. This linear range makes the 3300 XL 50 mm Transducer System ideal for measuring the differential expansion (DE) or rotor expansion (RX) of large steam turbine generators that results from the difference in growth rates between the turbine rotor and the machine stator (casing). The 3300 XL 50 mm probe comes in three case & thread configurations to physically replace all standard 7200 50 mm systems (including side and rear exit probes).
The standard 7200 style mounting brackets are still available as accessories. In addition, a new bracket to adapt the probe to the 50 mm DE Integral transducer sliding mount base is also available. The Proximitor Sensor has a 0.394 V/mm (10 mV/mil) output that is identical to that of the 7200 and 50 mm DE Integral systems, which allows customers to upgrade without requiring any changes in the monitor configuration. When upgrading from previous systems, every transducer system component (probe, extension cable, and Proximitor Sensor) must be replaced with 3300 XL 50 mm components.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Bently Nevada 330877-080-37-05 Extension Cable Manuals, Datasheets, Drivers, 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.
Thermal Power
Transmits large differential expansion (DE) signals from the high-pressure (HP) turbine cylinder to monitor rotor-to-stator axial clearances under extreme steam temperatures.
Nuclear Power
Applied in the conventional island steam turbine generator sets to bridge large-range axial displacement data under high radiation and high-temperature envelopes.
Hydroelectric Power
Routes dynamic thrust position signals on massive vertical hydro-turbines with large shaft runout, utilizing the armor to resist physical tearing.
Oil & Gas Refining
Interconnects sensors on high-temperature catalytic cracking turbine expanders, safeguarding signal transmission against aggressive hydrocarbons and severe oil mist.
Iron & Steel Metallurgy
Applied on blast furnace blast blowers and TRT (Blast Furnace Top Gas Recovery Turbine) systems to monitor thermal expansion growth in heavy dust environments.
Coal Chemical Industry
Transmits thrust bearing drift signals on large oxygen compressors within coal gasification plants, carrying explosion-proof approvals for high-risk zones.
During the routing and utilization of 330877-080-37-05, the absolute minimum required physical bend radius of 25.4 mm must be strictly maintained, and over-bending or kinking the stainless steel armored conduit to force clearance through tight spaces is prohibited to prevent inner coaxial core damage.
When wiring and interconnecting in the field, the dedicated disposable tool included in the package must be used to properly fit the ClickLoc connector protectors, ensuring the electrical contact surfaces remain completely free of oil, moisture, and conductive dust contamination. Since this specific configuration carries multiple agency approvals, all operations in hazardous environments must be paired with the original Proximitor sensor and fully comply with intrinsically safe regulatory grounding standards.
The 330877-080-37-05 is an 8.0-meter 3300 XL 50 mm stainless steel armored extension cable with multiple agency approvals, applied to withstand high-temperature steam turbine differential expansion (DE) environments. It operates within -51°C to +200°C (intermittent exposure up to 250°C) while maintaining signal accuracy. Featuring patented FluidLoc technology internally, it creates a dense longitudinal physical barrier to prevent moisture, lubricating oil, or oil vapor from migrating through the cable interior. The cable terminates in high-temperature ClickLoc connectors with removable collars for routing through tight clearances, complemented by included connector protectors and an installation tool to eliminate oil and moisture contamination.
What is the primary function of the 330877-080-37-05?
It is a heavy-duty industrial extension cable used to transmit eddy current raw signals between a 50 mm proximity probe and a Proximitor sensor.
Which specific product system does the 330877-080-37-05 complement?
It is designed explicitly as a vital bridge component for the Bently Nevada 3300 XL 50 mm Proximity Transducer System.
What type of shielding technology is implemented in the 330877-080-37-05?
It features a premium 75 Ω triaxial shield architecture insulated with Perfluoroalkoxyethylene (PFA) to prevent cross-talk and industrial EMI.
What is the unique purpose of FluidLoc technology in the 330877-080-37-05?
It incorporates an internal block barrier to prevent high-pressure liquids or oil vapors from wicking through the cable interior.
What parameters does the system monitoring with the 330877-080-37-05 track?
It measures exceptionally large axial thrust displacement and structural differential expansion up to 27.9 mm (1100 mils), which is the longest linear range in Bently Nevada's eddy current transducer line.
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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
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