وصف
Bently Nevada 16699-03 Velocity Seismoprobe
The Bently Nevada 16699-03, also cataloged as the 16699-03 Velocity Seismoprobe, operates as a dedicated electromagnetic velocity transducer for vibration velocity conversion within Bently Nevada 3300 and 3500 machinery monitoring systems.
Configured for direct mechanical-to-electrical signal conversion in rotating equipment diagnostics, the Bently Nevada 16699-03 (16699-03 velocity sensor) provides proportional velocity output for back-end vibration analysis and protection processing.
Hardware Specifications
| Parameter |
Specification |
| Model |
16699-03 |
| Brand |
Bently Nevada |
| Weight |
0.32 kg |
| Dimensions |
Diameter 41.4 mm |
| Operating Temp |
–29 deg C to +93 deg C |
| Power Consumption |
Self-powered (no external supply required) |
| Sensor Principle |
Electromagnetic velocity transducer |
| Frequency Response |
10 Hz – 1,000 Hz (±3 dB) |
| Sensitivity |
20 mV/mm/sec (±5%) |
| Amplitude Range |
±127 mm/sec peak |
| Transverse Sensitivity |
<5% |
| Connector Type |
2-pin MIL-C-5015 |
| Mounting Thread |
1/2-20 UNF |
Eddy-Current Vibration Velocity Conversion and Signal Linearity Behavior
The Seismoprobe operates through electromagnetic induction, where relative motion between coil and magnetic field generates a proportional velocity output signal.
The internal conversion mechanism maintains linear response across the defined 10 Hz to 1,000 Hz bandwidth, ensuring stable amplitude tracking for low-frequency shaft and casing vibration.
Transverse sensitivity suppression below 5% reduces cross-axis coupling during radial and axial vibration measurement conditions.
The self-powered architecture eliminates excitation dependency, allowing direct analog output scaling without external conditioning modules.
Mechanical mounting stability through 1/2-20 UNF interface ensures consistent reference plane alignment, minimizing phase distortion in vibration phase analysis.
Frequently Asked Questions (FAQ)
Q: Does the 16699-03 require external power supply for operation?
A: No. The sensor is self-powered and generates electrical output through electromagnetic induction.
Q: How does mounting orientation affect signal accuracy?
A: Incorrect mounting alignment can introduce cross-axis sensitivity and amplitude deviation. Proper rigid mounting is required.
Q: Is the output signal compatible with 3300/3500 monitoring systems directly?
A: Yes. The sensor output is designed for direct integration with Bently Nevada monitoring modules with proper signal conditioning.
Field Installation Guidelines
Install the sensor on a rigid machine surface with stable mechanical coupling to the measurement axis. Ensure the mounting surface is free of paint, debris, or mechanical looseness.
Use the specified 1/2-20 UNF threaded interface with full engagement to maintain vibration coupling integrity. Avoid flexible or isolated mounting structures that introduce mechanical damping errors.
Route sensor cabling away from high-current conductors and switching devices to reduce electromagnetic interference on low-level velocity signals. Maintain proper strain relief at the MIL-C-5015 connector.
Verify that the sensor axis aligns with the intended vibration measurement direction before commissioning.
