Configured for signal transmission in machine protection systems, the Bently Nevada 16925-33 (16925-33 Interconnect Cable) provides direct physical/electrical execution.

Cable Architecture

• Type: 3-conductor shielded instrumentation cable.
• Conductor Gauge: 22 AWG (0.5 mm2).
• Connector Configuration: 3-socket plug at one end, terminal lugs at the opposite end.
• Length Range: Minimum 2.0 ft (0.6 m) to maximum 99 ft (30 m).

Physical and Electrical Data

Signal Integrity and Rotor Dynamics

The 16925-33 cable facilitates the precise transport of raw signals from eddy-current probes to monitoring instrumentation. Maintaining signal integrity is required for accurate gap voltage validation, typically targeted at -10 VDC for standard probe gaps. The cable's shielding geometry is engineered for cross-talk suppression and the reduction of electromagnetic interference in harsh turbine environments. Proper termination of the shield at the signal ground is required to maintain the stability of the rotor dynamics data stream and prevent ground loop injection into the monitoring circuit.

Package Contents

• 1 unit 16925-33 Interconnect Cable
• 1 set Installation technical documentation

Deployment Requirements

• Ensure the cable routing avoids high-voltage power conduits to minimize inductive noise coupling.
• Verify the shield is connected at the appropriate grounding terminal per the monitoring system manual.
• Do not exceed the minimum bend radius during installation to prevent deformation of the internal conductors.
• Ensure the 3-socket plug is fully seated and locked into the probe housing to prevent intermittent connections.
• Apply cable ties at regular intervals to secure the run and prevent mechanical fatigue from vibration.

Technical FAQs

• What is the maximum allowable length for this cable?

  The cable supports a maximum length of 99 ft (30 m). Extending beyond this limit may result in signal attenuation and degradation of the eddy-current probe's frequency response.

• Is the shield continuous from end to end?

  Yes, the shield is designed to be continuous throughout the cable length to provide uniform protection against EMI and RFI interference.

• Can this cable be used for high-temperature applications?

  The cable is rated for operation up to +105 deg C. Ensure the application environment does not exceed this rating, as excessive heat will degrade the insulation.

• How should the terminal lugs be secured?

  The terminal lugs should be fastened to the designated terminals with proper torque to ensure low-resistance electrical contact.

• Does the cable require specific grounding?

  The shield must be grounded at the monitor end to avoid ground loops. Refer to the specific 3300 series monitor installation guide for system grounding requirements.

• Can I field-repair the 3-socket plug?

  Field repairs of the connector are not recommended. Damaged connectors should be replaced with factory-certified components to maintain signal integrity.

• Is the cable resistant to oil or chemical exposure?

  The outer jacket is designed for industrial environments; however, verify the specific jacket material compatibility if exposed to aggressive synthetic lubricants or solvents.

• Why is the gap voltage reading unstable?

  Instability may indicate a poor connection at the terminal lugs, shield grounding issues, or a damaged cable segment. Inspect the physical integrity of the cable and connectors.