Overview
The Bently Nevada 3300/20-13-02-01-00-00, also cataloged as the 3300/20 Dual Thrust Position Monitor, operates as a dedicated hardware component for shaft axial position measurement within the Bently Nevada 3300 Series Machinery Protection System.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 3300/20-13-02-01-00-00 |
| Brand | Bently Nevada |
| Origin | USA |
| Weight | Approx. 1 kg |
| Dimensions | 3300 rack module format, 1 rack position |
| Operating Temp | 0 deg C to +65 deg C |
| Power Consumption | Approx. 1.5 W nominal |
| Product Type | Dual Thrust Position Monitor |
| System Platform | Bently Nevada 3300 Series Machinery Protection System |
| Measurement Function | Two-channel shaft axial position monitoring |
| Input Configuration | 1 or 2 proximity transducer inputs |
| Transducer Input | 7200 11 mm Proximitor System, 100 mV/mil |
| Full Scale Range | 2.0-0-2.0 mm |
| Input Impedance | 10 kOhm |
| Accuracy | Typical +/- 0.33% FS, maximum +/- 1% FS at 25 deg C |
| Recorder Outputs | 4-20 mA, 1-5 VDC, or 0 to -10 VDC |
| Alarm Function | Alert and Danger alarm setpoints |
| Relay Type | Epoxy-sealed alarm relays |
| Storage Temperature | -40 deg C to +85 deg C |
| Relative Humidity | Up to 95%, non-condensing |
Eddy-Current Probe Scaling and Rotor Dynamics Monitoring
The 3300/20 module processes displacement signals from proximity probe systems and converts shaft axial movement into proportional electrical outputs. Furthermore, the module applies eddy-current probe scaling characteristics to maintain measurement consistency across the defined monitoring range.
The monitor validates probe gap conditions through DC voltage measurement. In Bently Nevada proximity systems, engineers typically verify gap voltage near the -10 VDC target range to confirm correct probe installation and signal response.
Additionally, the module supports rotor dynamics analysis by tracking axial shaft movement related to thrust bearing clearance changes. Therefore, operators can evaluate mechanical position trends before excessive axial displacement affects rotating equipment operation.
Frequently Asked Questions
Q: Does the 3300/20-13-02-01-00-00 support dual channel thrust position monitoring?
A: Yes. The module provides two independent monitoring channels for shaft axial position measurement using compatible proximity transducer inputs.
Q: What type of transducer system does this module accept?
A: This configuration accepts the 7200 11 mm Proximitor System with 100 mV/mil sensitivity.
Q: Does the module provide direct connection to PLC or DCS systems?
A: Yes. The recorder outputs provide buffered current and voltage signals for connection to external monitoring or control systems.
Field Installation Guidelines
- Install the module in the designated slot of the Bently Nevada 3300 rack and verify correct rack positioning before energizing the system.
- Connect proximity probe wiring with proper shielding practices to reduce electrical interference and signal distortion.
- Verify probe polarity, extension cable connections, and Proximitor compatibility before commissioning.
- Confirm probe gap voltage during startup checks and adjust the probe installation position according to the approved machine monitoring procedure.
- Route vibration and proximity signal cables separately from high-voltage power cables to minimize electromagnetic coupling.
- Verify alarm relay wiring before enabling machine protection logic.
Reviews
There are no reviews yet.