Overview
The Bently Nevada 3300/16-12-01-02-00-02-00, also cataloged as the 3300/16 XY/GAP Dual Vibration Monitor, operates as a dedicated hardware component for radial shaft vibration measurement and gap voltage monitoring within the Bently Nevada 3300 Series Machinery Monitoring System.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 3300/16-12-01-02-00-02-00 |
| Brand | Bently Nevada |
| Origin | USA |
| Product Type | XY/GAP Dual Vibration Monitor |
| System Platform | Bently Nevada 3300 Series Machinery Monitoring System |
| Measurement Function | Dual-channel radial vibration and average shaft position monitoring |
| Full Scale Range | 0 to 150 um peak-to-peak |
| Transducer Input | 3300 8 mm, 3300 XL 8 mm, or 7200 5 mm and 8 mm Proximitor Sensors |
| Transducer Sensitivity | 200 mV/mil (7.87 V/mm) |
| Input Channels | Two independent vibration channels with X and Y probe configuration |
| Input Impedance | 10 kohm |
| Frequency Response | Standard: 4 Hz to 4,000 Hz; Low frequency option: 1 Hz to 600 Hz |
| Accuracy | Within +/- 0.33% of full scale at 25 deg C typical |
| Alarm Output | Alert and Danger alarm functions with hermetically sealed relays |
| Buffered Output | Front panel coaxial connectors and rear terminal outputs |
| Recorder Output | Programmable 4-20 mA, 0 to -10 VDC, or 1 to 5 VDC |
| Power Consumption | Approximately 2.0 Watts nominal |
| Operating Temp | 0 deg C to +65 deg C |
| Storage Temp | -40 deg C to +85 deg C |
| Relative Humidity | Up to 95%, non-condensing |
| Rack Requirement | One full-height slot in Bently Nevada 3300 rack |
Eddy-Current Probe Signal Processing and Rotor Dynamics Monitoring
The 3300/16 module processes eddy-current probe signals from non-contact displacement transducers and converts dynamic shaft movement into vibration amplitude data. It applies probe scaling based on 200 mV/mil sensitivity to maintain measurement consistency across compatible Bently Nevada proximity systems.
Additionally, the module monitors gap voltage feedback from the proximity probe system to verify shaft position conditions. The gap channel supports voltage validation with typical -10 VDC target settings for proper probe operating range confirmation. Therefore, the monitor can detect changes in shaft center position caused by mechanical displacement, bearing wear, or rotor alignment variation.
The module also supports rotor dynamics analysis by measuring radial vibration components on X and Y axes. Because the two channels operate independently, the system can evaluate vibration direction, amplitude changes, and abnormal shaft movement patterns.
Frequently Asked Questions
Q: What type of proximity probes can connect to the 3300/16-12-01-02-00-02-00?
A: The module accepts Bently Nevada 3300 8 mm, 3300 XL 8 mm, and 7200 series 5 mm and 8 mm proximity probe systems with 200 mV/mil sensitivity.
Q: Does the 3300/16 provide both vibration and shaft position measurements?
A: Yes. The module measures two radial vibration channels and monitors average shaft position through the probe gap voltage signal.
Q: What alarm outputs are available on this configuration?
A: This configuration includes hermetically sealed relay outputs for Alert and Danger alarm functions used in machinery protection logic.
Field Installation Guidelines
Install the 3300/16 module in a compatible Bently Nevada 3300 rack using the designated full-height module slot. Verify rack power availability before insertion and confirm that the module seats correctly into the backplane connector.
Connect proximity probe signals using shielded instrumentation wiring. Ground cable shields according to the plant grounding practice to reduce electrical interference and signal noise. Keep probe signal cables separated from high-voltage power conductors and switching circuits.
Before operation, verify probe polarity, signal scaling, and gap voltage range. Confirm that the proximity probe operates within the recommended gap voltage range, including the standard -10 VDC target condition where applicable. Perform alarm setpoint verification after installation and before placing the machinery protection channel into service.
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