Bently Nevada 330500-07-00 Velomitor Sensor
A 100 mV/in/s piezo-velocity sensor supplied with a 3/8-16 UNC mounting adapter and no agency-approval option.
Technical Summary
330500-07-00 is a Bently Nevada Velomitor piezo-velocity sensor for casing vibration measurements. It produces a velocity-proportional signal for machinery monitoring without requiring an external signal integrator.
The 07 field specifies a 3/8-16 UNC mounting-thread adapter, while 00 identifies the version without an agency-approval option.
Specifications
| Manufacturer | Bently Nevada, a Baker Hughes business |
|---|---|
| Model | 330500-07-00 |
| Product Family | 330500 Velomitor |
| Sensitivity | 100 mV/in/s ±5% |
| Frequency Response | 4.5 Hz to 5 kHz ±3 dB |
| Velocity Range | 50 in/s peak |
| Amplitude Linearity | ±2% to 6 in/s peak |
| Power Requirement | -22 to -30 V DC |
| Output Bias | -12 ±3 V DC |
| Mounting Adapter | 3/8-16 UNC |
| Approval Option | Not required |
| Connector | Two-pin MIL-C-5015 |
| Operating Temperature | -55 to +121 °C |
Features
- Measures machine-casing vibration directly in velocity units.
- Maintains case isolation in a hermetically sealed stainless-steel body.
- Supports long field wiring with the compatible shielded cable family.
- Uses a replaceable mounting adapter to fit the specified machine thread.
Compatibility
- Confirm that the machine mounting point is 3/8-16 UNC and that the adapter is included.
- Use a monitor channel designed for the 330500 negative-supply Velomitor interface.
- Match the two-pin connector and cable construction to the environment.
- Review certification requirements before substituting a version with a different approval suffix.
Replacement
- Record orientation, baseline velocity and bias voltage before removing 330500-07-00.
- Prepare a flat rigid surface and apply the documented mounting limit without twisting the cable.
- Verify bias, polarity, frequency response and machine alarm levels after installation.
FAQ
What does 07 identify on 330500-07-00?
It specifies the 3/8-16 UNC mounting-thread adapter; include the mounting-point drawing when requesting a replacement.
Can 330500-07-00 replace a 330525 Velomitor XA sensor?
Not directly. The connector, physical design and cabling differ, so the complete sensor loop and mounting arrangement must be reviewed.
Which monitor input is required for 330500-07-00?
Use a channel that provides the specified negative DC supply and is configured for the 100 mV/in/s Velomitor signal.
What installation detail most affects 330500-07-00 performance?
A rigid prepared mounting surface and correct adapter engagement are essential; loose or flexible mounting can distort casing-velocity data.
What should accompany a 330500-07-00 quotation request?
Provide the full suffix, mounting thread, connector and cable identity, monitor model, bias record and any approval requirement.
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