Overview
Configured for dual-channel shaft vibration and gap measurement in the Bently Nevada 3300 Monitoring System, the Bently Nevada 3300/16-12-01-01-00-00 (3300/16 XY/GAP Dual Vibration Monitor) provides direct signal processing and alarm execution for proximity transducer inputs. The module monitors radial shaft vibration and average shaft position through eddy-current probe systems.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | Bently Nevada 3300/16-12-01-01-00-00 |
| Brand | Bently Nevada |
| Product Type | XY/GAP Dual Vibration Monitor |
| System Platform | Bently Nevada 3300 Monitoring System |
| Monitoring Function | Two-channel radial vibration and average shaft position measurement |
| Transducer Input | 3300 8 mm, 3300 XL 8 mm, or 7200 5 mm / 8 mm Proximitor Sensor |
| Input Sensitivity | 200 mV/mil (7.87 V/mm) |
| Input Impedance | 10 kOhm |
| Full-Scale Range | 0 to 150 um peak-to-peak |
| Frequency Response | 4 Hz to 4,000 Hz nominal |
| Accuracy | Within +/- 0.33% of full scale at +25 deg C |
| Alarm Setting Range | 0 to 100% of full-scale range |
| Display Type | Vertical bargraph LCD for vibration and gap indication |
| Alarm Output | Epoxy-sealed relay board |
| Buffered Outputs | Front-panel coaxial connectors and rear terminal outputs |
| Recorder Output | Programmable +4 to +20 mA, 0 to -10 VDC, or +1 to +5 VDC |
| Rack Position | 1 slot in Bently Nevada 3300 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 | 1 rack slot format for 3300 rack installation |
| Power Consumption | Approximately 2 Watts nominal |
Eddy-Current Probe Signal Processing and Rotor Dynamics Monitoring
The 3300/16 module processes displacement signals from eddy-current proximity probes and converts dynamic shaft movement into vibration and position data. In addition, the monitor applies probe scaling based on the connected 3300 or 7200 series transducer systems to maintain measurement accuracy.
The module validates shaft position signals through gap voltage monitoring. Therefore, the system can verify probe operating conditions and maintain correct measurement references, including standard -10 VDC gap voltage targets used in Bently Nevada proximity measurement circuits.
Furthermore, the monitor supports rotor dynamics evaluation by continuously tracking radial shaft vibration changes. The independent XY channels allow engineers to observe directional vibration behavior and configure Alert and Danger thresholds according to machine operating requirements.
Frequently Asked Questions
Q: What type of transducers can the 3300/16-12-01-01-00-00 accept?
A: The module accepts Bently Nevada 3300 8 mm, 3300 XL 8 mm, and 7200 series 5 mm or 8 mm proximity transducer systems with 200 mV/mil sensitivity.
Q: Does the module provide vibration alarm outputs?
A: Yes. The monitor provides digitally adjustable Alert and Danger alarm settings and uses an epoxy-sealed relay board for alarm output functions.
Q: How does the module handle shaft gap measurement?
A: The module receives proximity probe gap voltage signals and displays average shaft position while monitoring probe operating conditions.
Field Installation Guidelines
- Install the module in the designated slot of a Bently Nevada 3300 rack and confirm correct rack power availability before operation.
- Connect proximity probe signals using appropriate shielded instrumentation wiring to minimize electrical interference.
- Ground cable shields according to site grounding practices and avoid parallel routing with high-voltage power conductors.
- Verify probe polarity, extension cable compatibility, and Proximitor Sensor configuration before commissioning.
- Confirm gap voltage values during startup to ensure the probe operates within the expected measurement range.
- Configure Alert and Danger thresholds based on machine operating parameters and approved protection settings.
- Inspect relay wiring, buffered outputs, and recorder signal connections before placing the monitoring channel into service.
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