Bently Nevada 124534-01 3300 Series Proximitor Sensor

Bently Nevada 124534-01 3300 Series Proximitor Sensor

The Bently Nevada 124534-01, also cataloged as the 124534-01 Proximitor Sensor, operates as a dedicated hardware component for eddy-current probe signal conversion and non-contact shaft displacement measurement within the Bently Nevada 3300 System.

Hardware Specifications

Eddy-Current Probe Scaling and Gap Voltage Validation

The 124534-01 Proximitor Sensor converts the eddy-current proximity probe signal into a proportional voltage output for machinery protection and condition monitoring systems. The unit provides interface conditioning between the probe and monitoring electronics for radial vibration and shaft position measurements.

Probe scaling is based on the electrical characteristics of the compatible eddy-current probe system. Correct gap voltage validation is required during installation to confirm probe operation within the calibrated measurement range. The typical electrical zero reference of approximately -3.0 VDC at 20 mils provides a measurement reference point for shaft displacement monitoring.

The sensor sensitivity of 200 mV/mil supports high-resolution displacement measurement for rotor dynamics analysis. Proper probe installation, cable matching, and gap adjustment reduce signal errors caused by incorrect probe positioning or installation conditions.

Frequently Asked Questions

Q: What type of sensor does the 124534-01 accept?
A: The Proximitor Sensor accepts input from a compatible Bently Nevada eddy-current proximity probe.

Q: Does the 124534-01 directly measure shaft contact displacement?
A: No. The sensor performs non-contact measurement by processing eddy-current probe signals generated by shaft movement.

Q: What power supply is required for operation?
A: The module requires a -24 VDC power supply.

Field Installation Guidelines

Install the Proximitor Sensor in a suitable protected location near the machinery monitoring interface while maintaining access for maintenance and testing.

Use the specified proximity probe and extension cable combination to maintain calibrated measurement performance. Verify probe gap voltage before placing the monitoring system into operation.

Route probe signal wiring separately from power cables and high-current switching circuits. Maintain proper cable shielding and grounding practices to minimize electrical interference.

During commissioning, verify the output voltage response against expected shaft displacement values and confirm correct channel configuration in the connected machinery protection system.