Description

330750-20 | Bently Nevada | High Temperature Velomitor System
### Product Description
The 330750-20 is a permanently mounted, high-temperature velocity sensor designed for continuous vibration monitoring in harsh environments.
Moreover, it converts mechanical vibration into a proportional voltage signal for integration with condition monitoring systems.
Therefore, it is typically deployed on turbine casings, compressors, and other rotating equipment operating above standard temperature limits.
In addition, its ruggedized construction supports reliable operation up to 250°C without external cooling.

### Technical Specifications

### Typical Applications
– Gas turbine bearing housings in power generation
– High-temperature centrifugal compressor casings in petrochemical plants
– Steam turbine pedestals in combined-cycle facilities
– Exhaust-side blower casings in industrial HVAC systems

### FAQ
What is the maximum continuous operating temperature?
250°C (482°F) at the sensor tip; derating applies above this limit.

Is the 330750-20 compatible with standard 3300 XL monitoring systems?
Yes, it outputs a standard -10 to +10 VDC velocity signal and interfaces directly with 3300 XL rack-based systems.

Does it require external power or signal conditioning?
No—it is a passive, two-wire, IEPE-compatible sensor requiring only loop-powered excitation from the monitor.

Can it be used in hazardous areas?
Only when installed with an approved intrinsically safe barrier and certified per applicable regional standards (e.g., ATEX, IECEx).

What is the frequency response range?
4.5 Hz to 1 kHz (±5%), compliant with ISO 10816-3 for machinery vibration severity assessment.

### SEO Title
Bently Nevada 330750-20 High Temperature Velomitor System

### Meta Description
Bently Nevada 330750-20 High Temperature Velomitor System delivers reliable vibration monitoring up to 250°C. Ideal for turbines and compressors—request technical documentation or OEM support today.