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The 330100-50-01 functions as a Proximitor sensor within the Bently Nevada 3300 XL system. This oscillator-demodulator unit converts eddy-current probe signals into a proportional voltage output. Plant engineers use it for radial vibration and axial position monitoring on turbines and compressors.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | 330100-50-01 |
| Category | Proximitor Sensor |
| Input Signal | Eddy-current proximity probe |
| Output | Voltage, proportional to gap |
| Frequency Range | 0 to 10 kHz |
| Linear Range | 0 to 2 mm (typical) |
| Supply Voltage | -17.5 Vdc to -26 Vdc |
| Current Draw | Approx. 12 mA maximum |
| Operating Temperature | -35°C to +85°C |
| Storage Temperature | -55°C to +100°C |
| Weight | Approx. 0.45 kg |
| Dimensions | 100 mm × 60 mm × 40 mm |
| Mounting | DIN rail or panel mount |
| Connector | Coaxial, 3-pin Mil-spec |
| Part Count | Single-channel module |
Signal Path and Interface Details
The unit supplies a high-frequency excitation signal to the probe coil. Subsequently, it demodulates the returned signal into a clean voltage output. Because the oscillator and demodulator share one housing, wiring stays compact. The 330100-50-01 therefore pairs directly with 3300 XL probes and extension cables.
Energy Storage and Power Draw
No internal battery or supercapacitor resides inside this module. The unit relies entirely on the external -24 Vdc supply for operation. Consequently, power loss immediately interrupts the output signal. System designers should therefore provide a dedicated, filtered DC source per channel.
Installation Notes
Operators mount the housing on a standard DIN rail inside the control cabinet. Shielded coaxial cable minimizes electromagnetic interference over distance. Meanwhile, the compact enclosure fits dense rack layouts with limited clearance. Always verify supply polarity before energizing the circuit.