Description
Bently 1330780-50-00
Technical Specifications
- Model: 1330780-50-00
- Sensor Compatibility: 3300 XL 11mm Eddy Current Proximity Probes
- System Length: 5.0 meters
- Output Signals: DC Gap Voltage and Buffered AC Vibration
Functional Features
- Advanced Signal Processing: Provides precise demodulation, amplification, and linearization of high-frequency eddy current signals.
- Dual Output Generation: Outputs a DC voltage proportional to the static gap distance and a buffered AC signal representing dynamic vibration.
- High Interference Immunity: Features enhanced RFI/EMI radiation resistance, allowing installation in complex electromagnetic environments without requiring special shielding conduits.
Application Scenarios
Extensively deployed in power generation, petrochemical, and steel metallurgy industries to monitor axial (thrust) displacement, differential expansion, and radial vibration in steam turbines and large compressors.
Performance Parameters
- Frequency Response: 0 to 8 kHz
- Operating Temperature: -35°C to +85°C
- Power Supply: -17.5 Vdc to -26.0 Vdc
Material Composition
Housed in an A308 aluminum enclosure with internal electronic circuit boards encapsulated in epoxy resin to enhance vibration resistance and moisture protection.
Structural Characteristics
Compact module featuring standard terminal connections, designed for either traditional panel mounting or compact DIN rail mounting. Both mounting substrates provide electrical insulation, eliminating the need for separate insulating plates.
Working Principle
An internal oscillator provides high-frequency current to the probe coil, generating a magnetic field. As a metallic target approaches, eddy currents are induced, altering the coil’s impedance. The Proximitor converts this impedance change into a linear voltage signal.
Installation Requirements
Must be mounted in a floating configuration (electrically isolated from earth ground). Ensure the total system cable length strictly matches the 5.0-meter specification. Maintain ambient temperatures below 65°C.
Precautions for Use
Never alter the length of the extension cable. If intermediate connectors are required, they must be floated and sealed. Recalibration requires resealing the unit to maintain environmental protection.
