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Bently Nevada 330100-50-05 3300 Proximitor Sensor

Configured for eddy-current displacement transduction in the Bently Nevada 3300 monitoring system, the Bently Nevada 330100-50-05 (330100 Proximitor Sensor) provides direct electrical execution of shaft vibration and position signals via a 5-meter integral cable.

Hardware Specifications

Parameter	Specification
Model Brand	Bently Nevada
Origin	USA
Weight	0.3 kg
Dimensions	6 x 5 x 8 cm
Operating Temp	-51 degC to +100 degC
Storage Temp	-51 degC to +100 degC
Power Consumption	24 VDC Loop Powered
Cable Length	5.0 meters (16.4 feet)
Agency Approval	Multiple Approvals (Option 05)
Housing Material	A383 Aluminum

Eddy-Current Probe Scaling and Gap Validation

The unit maintains a linear scale factor consistent with 3300 XL 5 mm and 8 mm probe standards. Gap voltage validation targets a nominal -10 VDC null point to ensure accurate proximity measurements. Cross-talk suppression is achieved through shielded twisted-pair cabling and specific impedance matching at the termination block, isolating rotor dynamic signals from adjacent transducer circuits during high-frequency shaft oscillation events.

Frequently Asked Questions

Q: What is the acceptable gap voltage range for this sensor when paired with an 8 mm probe?

A: The target gap voltage is -10 VDC; operational tolerance typically resides within -9 VDC to -11 VDC depending on probe tip geometry and extension cable length.

Q: Is this module compatible with the 3300 XL series front-end monitors?

A: Yes, the 330100-50-05 interfaces directly with 3300 XL monitoring racks but requires verification of the system configuration software to match the 5-meter cable impedance.

Field Installation Guidelines

Mount the sensor housing to a rigid, non-vibrating panel surface using standard DIN-rail or bracket hardware. Ensure the 5-meter cable shield terminates at a single ground point at the monitor chassis to prevent ground loops. Do not route the signal cable in parallel with AC power conductors exceeding 200 VAC. Verify the gap voltage at the monitor terminal before energizing the machinery to prevent probe-to-shaft contact damage.

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