Velomitor velocity sensors
(Velocity vibration sensors)
Description: Piezo-velocity sensors for fans, pumps, motors and general industry casing vibration.
Key features:
- Integrating piezo-accelerometers — high measurement accuracy
- Vibration velocity measurement — convenient units (mm/s, in/s)
- Wide frequency range - 4.5 Hz to 5 kHz
- High sensitivity — accurate diagnostics
- Hazardous-area certification - Hazardous Areas approved
Applications:
Principle of operation
Velomitor sensors integrate the acceleration signal to obtain vibration velocity, making them ideal for:
Machine casing monitoring
Rolling-element bearings
Structural vibration
Velocity unit measurements
Sensor models
330500 Velomitor Piezo-Velocity Sensor
Specifications:
- • Design: 2-pin integrating piezo-accelerometer
- • Sensitivity: 3.94 mV/mm/s (100 mV/in/s) ±5%
- • Frequency range: 4.5 Hz to 5 kHz ±3.0 dB
- • Maximum cable length: 305 m (1,000 ft)
Applications:
- • Machines with rolling-element bearings
- • Where velocity units are preferable
- • Multiple hazardous-area approvals
330525 Velomitor XA Piezo-velocity Sensor
Specifications:
- • Extended version of the standard Velomitor
- • Improved specifications
- • Optimised performance
330530 Radiation Resistant Velomitor
Specifications:
- • Design: 2-pin integrating accelerometer
- • Radiation tolerance: up to 12.0 Mrad
- • Sensitivity: 3.94 mV/mm/s (100 mV/in/s) ±5%
- • Maximum cable length: 305 m (1,000 ft)
Applications:
- • Radioactive environments
- • Also approved for many hazardous environments
330750/330752 High Temperature Velomitor System
Specifications:
- • Operating temperature: up to +400 °C (+752 °F)
- • Design: Split — the sensing element is separated from the electronics
- • Sensitivity: 5.7 mV/mm/s (145 mV/in/s) ±5%
Components:
- • 330750 - Sensing head
- • 330752 - Signal conditioner
The sensing head mounts on hot surfaces, the electronics in a cooler location
190501 Velomitor CT (Cooling Tower) Transducer
Specifications:
- • Application: Specifically for cooling towers
- • Measurement: Casing velocity vibration of fans
- • Design: 2-wire seismic sensor
- • Self-powered
Features:
- • Optimised for cooling tower applications
- • Resistant to humid environments
- • Rugged industrial construction
Technical specifications
Sensitivity
3.94 mV/mm/s (100 mV/in/s) ±5%
Frequency range
4.5 Hz to 5 kHz ±3.0 dB
Cable length
Up to 305 m (1,000 ft)
Temperature variants
Standard and high-temperature (up to +400°C)
Application areas
Equipment types
Benefits of velocity measurement
- Direct link to bearing condition
- Convenient measurement units (mm/s, in/s)
- Wide frequency range
- Standardised vibration limits
Velomitor advantages
Accuracy
High sensitivity and measurement precision
Reliability
Proven Bently Nevada technology
Flexibility
Various models for different conditions
Certification
Hazardous area approvals
Durability
Rugged construction
Simplicity
Easy installation and maintenance
System compatibility
Velomitor sensors are compatible with:
- →3500 Series systems
- →Orbit 60 Series
- →Orbit DCM
- →TrendMaster Pro
- →Other Bently Nevada monitoring systems
Other monitoring systems
Need advice?
Our specialists will help you choose the optimal Velomitor velocity sensors configuration for your equipment.