The Bently Nevada 330180-50-CN, also cataloged as the 330180 Proximitor Sensor, operates as a dedicated hardware component for eddy-current signal conditioning within machinery monitoring systems.
Suffix Breakdown & Model Matrix
50: 5.0 meters (16.4 feet) system length, panel mount configuration.
CN: Country-specific agency approvals.
Hardware Specifications
Parameter
Specification
Model
330180-50-CN
Brand
Bently Nevada
Origin
USA
Weight
0.22 kg
Dimensions
8 x 6 x 6.5 cm
Operating Temp
-40 degC to +85 degC (-40 degF to +185 degF)
Power Consumption
Not specified
Channels
Single channel per module
Frequency Response
0.5 Hz to 12 kHz (+/- 3 dB)
Scale Factor
200 mV/mil
Cable Length
5.0 meters
LED Indicators
Power (Green)
Terminals
Screw terminals (2.5 mm2)
Tariff Code
8537101190
Eddy-Current Probe Scaling and Gap Voltage Validation
The sensor provides precise eddy-current probe scaling, transforming physical shaft displacement into a proportional voltage signal for monitoring rotor dynamics. During commissioning, gap voltage validation is required to ensure the probe operates within its linear calibration range near the -10 VDC target. Proper physical isolation and structural positioning are necessary to ensure cross-talk suppression when multiple sensors are installed in close proximity.
Frequently Asked Questions
Q: What is the technical significance of the 200 mV/mil scale factor?
A: It defines the sensor output sensitivity, where every 0.001 inch (1 mil) of physical movement by the target material produces a 200 mV change in the output voltage signal.
Q: Can this sensor function with any cable or probe length?
A: No. The internal circuitry is matched to a specific system length. This module requires a total physical length of 5.0 meters across the probe and extension cable to maintain its calibrated accuracy.
Field Installation Guidelines
Mount the unit onto a clean, flat panel surface using the integrated mounting holes.
Terminate all field wiring inside the 2.5 mm2 screw terminals, ensuring no exposed copper strands remain outside the terminal block.
Verify that the total combined length of the proximity probe and extension cable equals exactly 5.0 meters to prevent calibration drift.
Ensure proper coaxial shielding and grounding protocols are followed to minimize high-frequency electrical noise interference.
