Bently Nevada 330500-02-00 Velomitor® Piezoelectric Velocity Sensor is a rugged, solid-state transducer designed to measure absolute vibration velocity (relative to free space) of machine bearing housings, casings, or structural components . It is an integrating piezoelectric accelerometer with embedded electronic circuitry that converts the acceleration signal directly into a velocity-proportional output.
Model Number Breakdown
The model number 330500-02-00 is decoded as follows :
Code Position Option Meaning
330500 – Velomitor® Piezoelectric Velocity Sensor Series
-02 Mounting Thread M8 x 1 Metric Thread
-00 Certification No hazardous area certification required
Note: For hazardous area applications, other suffix options are available (e.g., -01 for CSA/Us/c, -04 for multiple approvals including CSA/ATEX, -CN for China NEPSI/CCC certification) .
Technical Specifications
All specifications are based on manufacturer documentation .
Parameter Specification
Sensitivity 3.94 mV/mm/s (100 mV/in/s) ±5% at 100 Hz
Velocity Range 1270 mm/s (50 in/s) peak
Frequency Response (±3.0 dB) 4.5 Hz to 5 kHz (270 cpm to 300 kcpm)
Frequency Response (±0.9 dB) 6.0 Hz to 2.5 kHz (360 cpm to 150 kcpm)
Mounted Resonant Frequency > 12 kHz (minimum)
Transverse Sensitivity < 5% of sensitivity
Amplitude Linearity ±2% up to 152 mm/s (6 in/s) peak
Output Bias Voltage Typically -12 ± 3.0 VDC
Broadband Noise Floor 0.008 mm/s (300 μin/s) rms (typical)
Grounding Case isolated
Maximum Cable Length 305 m (1,000 ft)
Operating Temperature Range -55°C to +121°C (-67°F to 250°F)
Shock Survivability 5000 g peak (maximum)
Relative Humidity Up to 100% non-submerged (hermetically sealed case)