14386-03 | Bently Nevada | Proximator I/O Module

Configured for signal conversion in machinery protection system platforms, the Bently Nevada 14386-03 (14386-03) Proximator I/O Module provides direct physical and electrical execution for transducer interface conditioning.

Hardware Specifications

Rotor Dynamics & Proximity Probe Scaling

The 14386-03 operates as a signal conditioning interface for eddy-current proximity probes. It is calibrated to a sensitivity of 200 mV/mil, which is the standard scaling factor for most Bently Nevada transducer systems. During installation, operators must perform gap voltage validation to ensure the probe is positioned within the linear range of the transducer, typically targeting -10 VDC at the mid-gap position. Cross-talk suppression is achieved by ensuring that the field wiring to this module is properly shielded and that the signal return path is isolated from high-energy ground loops. The module converts the raw transducer signal into a processed output suitable for further machine protection logic processing.

Frequently Asked Questions

Q: Does this module require a specific power supply voltage for operation?

A: Yes, the module is designed for a 24 VDC supply. Ensure the power source is regulated to prevent voltage fluctuations that could introduce noise into the processed signal.

Q: Can this module be used with different sensitivity probes?

A: The module is hard-scaled to 200 mV/mil. Using it with transducers that have different sensitivity requirements will result in incorrect measurement data and potential logic errors in the protection system.

Field Installation Guidelines

1. Environmental Verification: Verify that the mounting location is free from excessive vibration and that ambient temperature remains within standard operating parameters.
2. Signal Shielding: Terminate the transducer shield at the signal common reference point specified by the system design to ensure effective electromagnetic noise rejection.
3. Electrical Connections: Ensure all 24 VDC input connections are securely tightened to prevent intermittent power loss, which may trigger system false trips.
4. Calibration Check: After physical installation, measure the gap voltage between the probe tip and the target material. Confirm the value resides within the designated linear region required by the application.
5. Loop Validation: Inject a test signal to verify that the output follows the 200 mV/mil transfer function before placing the machinery into full operational status.