Overview
The Bently Nevada 3300/16-12-01-03-00-00-00, also cataloged as the 3300/16 XY/Gap Dual Vibration Monitor, operates as a dedicated hardware component for radial shaft vibration and probe gap monitoring within the Bently Nevada 3300 Monitoring System.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 3300/16-12-01-03-00-00-00 |
| Brand | Bently Nevada |
| Product Type | XY/Gap Dual Vibration Monitor |
| System Platform | Bently Nevada 3300 Monitoring System |
| Measurement Channels | 2 independent radial vibration and gap channels |
| Input Type | Proximity probe / Proximitor sensor input |
| Supported Transducers | 3300 8 mm, 3300 XL 8 mm, 7200 5 mm and 8 mm probes |
| Transducer Sensitivity | 200 mV/mil (7.87 V/mm) |
| Input Impedance | 10 kOhm |
| Full Scale Range | 0 to 150 um pp |
| Frequency Response | 4 to 4,000 Hz or 1 to 600 Hz, user programmable |
| Signal Conditioning Accuracy | +/- 0.33% typical, +/- 1.0% maximum |
| Recorder Outputs | +4 to +20 mA, 0 to -10 VDC, or +1 to +5 VDC |
| Buffered Outputs | Front panel BNC/coaxial connectors and rear terminal outputs |
| Alarm Setpoints | Digitally adjustable from 0 to 100% of full scale |
| Relay Type | Hermetically sealed relays |
| Display | Dual 63-segment vertical LCD bargraphs with probe gap indication |
| Status Indicators | OK, Alert, Danger, and Bypass LEDs |
| Rack Position | 1 slot in 3300 series rack |
| 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 |
| Weight | Approximately 1.0 kg |
| Dimensions | Single 3300 rack module format |
| Power Consumption | Not specified in provided data |
Eddy-Current Probe Scaling and Rotor Dynamics Monitoring
The 3300/16 monitor processes eddy-current probe signals from two independent proximity measurement chains. Therefore, it maintains direct correlation between vibration amplitude, shaft position, and probe gap voltage values.
The module applies the 200 mV/mil (7.87 V/mm) scaling relationship for compatible Bently Nevada proximity systems. Additionally, it evaluates radial shaft movement across X and Y axes to support rotor dynamics analysis, including vibration amplitude tracking and displacement trend monitoring.
The probe gap measurement allows technicians to verify sensor operating conditions. Furthermore, the monitoring circuit compares vibration values and DC gap signals against configured Alert and Danger thresholds for machinery protection logic.
Frequently Asked Questions
Q: What type of transducers can the 3300/16-12-01-03-00-00-00 accept?
A: The module accepts Bently Nevada proximity transducer systems, including 3300 8 mm, 3300 XL 8 mm, and 7200 5 mm or 8 mm probes with 200 mV/mil sensitivity.
Q: Does the module provide buffered vibration signals for external analysis equipment?
A: Yes. The monitor provides buffered outputs through front panel coaxial connectors and rear terminal connections for diagnostic instruments and spectrum analysis systems.
Q: How does the module validate probe operation?
A: The module monitors DC gap voltage from the eddy-current probe system and uses the signal condition to confirm proper probe operating range and measurement stability.
Field Installation Guidelines
- Install the 3300/16 module in the designated slot of a compatible Bently Nevada 3300 rack.
- Connect proximity probe wiring according to the approved Bently Nevada installation drawings and terminal assignments.
- Maintain proper cable shielding practices to reduce electromagnetic interference on low-level vibration signals.
- Separate transducer cables from high-voltage power wiring and switching circuits during cabinet installation.
- Verify probe polarity, signal scaling, and gap voltage before placing the monitor into service.
- Confirm Alert and Danger alarm values match the approved machinery protection settings before enabling trip functions.
- Use grounded shield termination methods according to site electrical standards to maintain signal integrity.
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