Description

Technical Overview

The Bently Nevada 330750-60-05 High Temperature Velomitor System is a ruggedized, IEPE-compatible velocity sensor engineered for continuous monitoring of machinery vibration in extreme thermal environments. Designed specifically for applications where ambient temperatures exceed standard sensor limits—such as gas turbine casings, exhaust ducts, steam turbines, and high-temperature compressors—this system delivers reliable, low-noise velocity output up to 482°F (250°C) without external cooling or signal conditioning compromises. Its hermetically sealed, stainless-steel construction ensures long-term stability and resistance to moisture, oil mist, and corrosive industrial atmospheres.

Unlike conventional accelerometers requiring integration, the 330750-60-05 provides true velocity output directly proportional to mechanical vibration velocity (in mm/s or in/s), simplifying integration into legacy and modern Bently Nevada monitoring systems—including the 3500/40M, 3500/25, and System 1 platforms. The integrated high-temperature cable assembly features PTFE-insulated conductors and a braided stainless-steel shield, rated for continuous operation at 250°C and capable of withstanding thermal cycling and mechanical flexing common in rotating equipment installations. Signal integrity is preserved via built-in TEDS (Transducer Electronic Data Sheet) compatibility and optimized low-frequency response down to 0.5 Hz—critical for detecting slow-roll anomalies, misalignment, and bearing defects in high-temperature assets.

Key Features

• Extended Operating Range: Rated for continuous use at ambient temperatures up to 250°C (482°F), eliminating the need for air or water cooling jackets.
• IEPE-Compatible Velocity Output: Delivers industry-standard 100 mV/(in/s) sensitivity with built-in signal conditioning—no external integrator required.
• Hermetic Stainless-Steel Housing: IP68-rated enclosure with welded construction resists high-pressure washdowns, chemical exposure, and mechanical shock.
• Integrated High-Temp Cable: 10-ft (3 m) PTFE-jacketed, stainless-steel braided cable rated to 250°C and qualified for repeated thermal cycling.
• TEDS Support: Compliant with IEEE 1451.4 for automatic transducer identification and configuration in compatible monitoring systems.
• Low-Frequency Response: Optimized 0.5 Hz–10 kHz bandwidth enables detection of both subsynchronous vibrations and high-frequency bearing faults.

Specifications

• Part Number: 330750-60-05
• Manufacturer: Bently Nevada (a Baker Hughes business)
• Type: High Temperature Velomitor System (Velocity Sensor)
• Warranty: 24-month limited warranty from date of shipment; covers material and workmanship defects under normal industrial use.

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