Bently Nevada 330525-00 330525 Velomitor XA Piezo-velocity Sensor
A 100 mV/in/s Velomitor XA sensor with integral 1/4-18 NPT mounting and no agency-approval option.
Product Identification
330525-00 is a Bently Nevada Velomitor XA piezo-velocity sensor with an integral 1/4-18 NPT mounting interface. It is intended for machinery casing-velocity measurements and uses the dedicated 106765 interconnect-cable family.
The 00 suffix specifies that no agency approval is required. Its MIL-C-26482 connector, physical dimensions and cable architecture distinguish it from the 330500 Velomitor sensor.
Engineering Data
| Manufacturer | Bently Nevada, a Baker Hughes business |
|---|---|
| Model | 330525-00 |
| Product Family | Velomitor XA |
| Sensitivity | 100 mV/in/s ±5% |
| Frequency Response | 4.5 Hz to 2 kHz ±3 dB |
| Velocity Range | 50 in/s peak |
| Power Requirement | -22 to -30 V DC, 2.5 to 6.0 mA bias current |
| Output Bias | -12 ±3 V DC |
| Mounting Thread | Integral 1/4-18 NPT |
| Approval Option | None required |
| Connector | Two-pin MIL-C-26482 |
| Interconnect Cable | 106765 series, 1 to 25 m |
Functions
- Measures casing vibration as a direct velocity signal.
- Provides a rugged stainless-steel body with an integral NPT mounting interface.
- Uses a dedicated armored interconnect cable with a splash-resistant connection arrangement.
- Supports local terminal-housing options for transition to monitor field wiring.
Applications
- Integral NPT casing mounts
- Critical machinery velocity monitoring
- Remote terminal-housing installations
Lifecycle
- Keep sensor, 106765 cable length and terminal-housing identity together.
- Inspect connector boot, clamps and minimum bend radius during outages.
- Preserve baseline bias and vibration values for diagnostic comparison.
FAQ
Why is 330525-00 not a direct physical substitute for 330500-00-00?
330525-00 has integral 1/4-18 NPT mounting, a different connector and its own interconnect-cable family, so mounting and wiring must be reviewed.
Which cable should be ordered with 330525-00?
Use the 106765 interconnect-cable family and specify a permitted length that suits the terminal-housing location.
Can 330525-00 be used in a certified hazardous-area loop?
The 00 suffix means no agency approval is required; select and document the appropriate approved variant for a classified installation.
What installation details protect a 330525-00 cable connection?
Maintain the specified bend radius and use the correct splash boot and clamps where environmental sealing is required.
What information should accompany a 330525-00 replacement request?
Provide the existing cable length, terminal housing, monitor input, mounting drawing, approval requirement, bias reading and failure symptoms.
