Description
Bently Nevada 3300/40-03-01-01-00-00
Technical Specifications:
- Product Series: 3300 Series Machinery Protection System
- Module Type: Proximity Transducer Interface Module
- Input Compatibility: 3300 XL 5mm, 8mm, 11mm, 25mm, and 50mm proximity transducer systems
- Power Supply: -17.5VDC to -26VDC, maximum 12mA per channel
- Frequency Response: 0 to 10 kHz
Functional Features:
- Universal interface for all 3300 XL proximity transducer system sizes
- Signal conditioning and amplification for accurate displacement measurement
- Support for both static (displacement) and dynamic (vibration) measurements
- Compatible with 3300 and 3500 monitoring system platforms
- Provides buffered sensor output for external instrumentation
- Front panel status indicators for operational verification
Application Scenarios:
- Shaft radial vibration monitoring on all types of rotating machinery
- Axial displacement and thrust position measurement
- Keyphasor and speed measurement applications
- Eccentricity and differential expansion monitoring
- Reciprocating compressor rod position and rod drop measurement
Performance Parameters:
- Sensitivity: 7.87V/mm (200mV/mil) for 8mm systems; 3.94V/mm (100mV/mil) for 11mm systems
- Linear Range: 2mm for 8mm probes; 4mm for 11mm probes; 12.7mm for 25mm probes
- Frequency Response: 0 to 10 kHz
- Maximum Cable Length: 305 meters from proximitor to monitor
- Operating Temperature: -30°C to +65°C
Material Composition:
- Enclosure: Industrial-grade metal housing
- Internal Circuitry: Multi-layer PCB with precision signal conditioning amplifiers
- Connectors: Spring-loaded terminal blocks for field wiring
Structural Features:
- Rack-mountable module for 3300/3500 series frames
- Front panel with operational status LEDs
- Rear terminal connections for sensor input and signal output
- Compact form factor for high-density rack installations
Working Principle: The 3300/40 module receives the conditioned voltage signal from the 3300 XL proximitor, which has already converted the proximity probe’s impedance changes into a linear DC voltage. The interface module further conditions this signal, providing buffering, filtering, and scaling as required by the monitoring system. The DC component of the signal represents the static gap (displacement), while the AC component represents dynamic vibration. The module outputs these signals to the monitoring system for processing, alarm comparison, and protective action.
Installation Requirements:
- Install in a compatible 3300/3500 series equipment rack
- Connect proximitor output cables using shielded three-conductor wiring
- Ensure proper power supply voltage (-24VDC nominal)
- Verify system length matching between probe, extension cable, and proximitor
- Route signal cables away from high-voltage power cables with minimum 50cm separation
Usage Notes:
- Confirm proximitor system length matches the total probe plus extension cable length
- Verify power supply polarity before energizing the module
- Check front panel LEDs to confirm proper module operation
- Shield grounding must be single-point to avoid ground loops
- Do not bend coaxial cables at sharp angles as this changes cable capacitance and affects measurement accuracy
- Connector hand-tighten only; over-tightening can damage internal spring contacts
