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Bently Nevada 330180-50-CN 3300 XL Proximitor Sensor

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.

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