Description
Bently 3300/65-14-01-00-00-01-00
Technical Specifications
- Product Series: 3300 Vibration Monitoring System
- Part Number: 3300/65-14-01-00-00-01-00
- Channel Configuration: Dual Channel Independent Monitoring
- Input Type: Proximity Probe (Eddy Current) + Velocity Transducer
- Full-Scale Range: 0 to 400 µm (0 to 15 mils) based on the “-14-” designation
- Relative Transducer Input: 3300 or 7200 Proximitor compatible
- Seismic Transducer Option: Velomitor with epoxy-sealed relay
- Mounting: Standard 3300 Rack Mount
Functional Features
- Four Distinct Measurements: Provides shaft relative vibration, bearing housing vibration, shaft absolute vibration (vector summation), and shaft average radial position relative to bearing clearance.
- Dual Probe Redundancy: Each channel supports primary and backup probe configuration for automatic switchover upon signal anomaly.
- Built-in FFT Spectrum Analysis: Supports time-domain waveform and frequency-domain spectrum display for early fault detection.
- Multi-Level Alarm Strategy: Features three-tier alarm thresholds (warning, alert, danger) combined with vibration amplitude and spectral characteristics.
- Communication Support: 4-20 mA current loop output with Modbus RTU communication protocol.
Application Scenarios
Essential for large rotating machinery with fluid film bearings including steam turbines, gas turbines, centrifugal compressors, and large pumps in power generation, petrochemical refining, and marine propulsion applications.
Performance Parameters
- Frequency Response: 0 to 10 kHz
- Accuracy: Linear error ≤ ±0.5%
- Protection Rating: IP65
- EMI Immunity: IEC 61326-1 compliant
- Operating Temperature: -30°C to +70°C
- Power Supply: ±24V DC redundant supply with hot-swap capability
Material Composition
Ruggedized steel chassis with gold-plated BNC connectors, conformal-coated internal circuit boards, and high-grade industrial electronic components designed for long-term stability in harsh environments.
Structural Characteristics
Standard 3300 rack module form factor with front-panel LED indicators for power, normal operation, alert, and danger conditions. Features dual BNC input connectors and front-accessible test points.
Working Principle
The module receives RF signals from the proximity probe and velocity transducer, demodulates the signals to extract vibration waveforms, performs vector summation of shaft relative vibration and bearing housing vibration to calculate absolute vibration, and compares values against user-defined alarm thresholds.
Installation Requirements
Must be installed in a compatible 3300 series rack. Proper grounding of the rack and signal cables is mandatory. Do not share power supply with variable frequency drives or high-power motors. The proximity probe and velocity transducer must be installed on the same axis of the machine.
Usage Notes
Calibrate channels quarterly using a TK-3E calibrator to ensure 4-20 mA output deviation remains within ±1%. At altitudes above 2000 meters, sensor gain parameters require recalibration. When replacing modules, ensure firmware version is V3.2 or above to avoid communication protocol incompatibility.
