Configured for high-frequency signal transmission in 3300 XL monitoring systems, the Bently Nevada 330130-085-01-00 (330130-085-01-00 Extension Cable) provides direct physical electrical continuity between the proximity probe and the Proximitor sensor.

Model Suffix Decomposition

The 330130-085-01-00 part number indicates the following hardware configuration:

• 330130: 3300 XL Extension Cable assembly.

• 085: 8.5 meters total system length requirement.

• 01: Armored cable assembly option.

• 00: Standard agency approval configuration.

Technical Hardware Specifications

Rotor Dynamics and Impedance Matching

The 3300 XL system performance is predicated on maintaining a precise 75 Ohm impedance path across the entire probe-cable-Proximitor loop. The 330130-085-01-00 includes a stainless steel armor jacket for enhanced mechanical protection in harsh industrial environments. This armor must be properly terminated to ensure the shield remains electrically continuous. Eddy-current probe scaling is sensitive to the total length of the coaxial run; thus, the system must be calibrated as a matched set. Cross-talk suppression is achieved through the use of high-quality internal shielding, which must remain intact to prevent inductive interference from surrounding conduits.

Ordering info

• 1 x 330130-085-01-00 Armored Extension Cable assembly

• 1 x ClickLoc connector interface kit

• 1 x Protective connector cap

• 1 x Installation instruction manual

Field Installation Guidelines

• Armored Cable Handling: When routing, do not exceed the minimum bend radius of 50 mm due to the stiffness of the stainless steel armor.

• Grounding: Ensure the armor jacket is not used as the primary signal ground path; maintain separate shield integrity per standard installation practices.

• Connector Integrity: Hand-tighten all ClickLoc connections. Avoid using mechanical tools which may damage the connector interface or internal impedance-matching components.

• Mechanical Support: Utilize appropriate clamps to secure the armored cable and relieve tension on the connector junctions during machine operation.

Frequently Asked Questions

• Q: Can the stainless steel armor be removed?

  A: No. The armor is an integral part of the cable assembly. Removing it will compromise the mechanical protection and potentially damage the internal coaxial cable.

• Q: Is this cable compatible with non-armored 3300 XL probes?

  A: Yes. The electrical impedance matches standard 3300 XL components, provided the total system length requirements are met.

• Q: How does the armored jacket affect the minimum bend radius?

  A: The armor increases the minimum bend radius to 50 mm, compared to 25 mm for standard, non-armored cables.

• Q: Does the armor interfere with the signal?

  A: No. The armor is isolated from the coaxial signal path and serves exclusively for mechanical protection.

• Q: Can I splice this cable?

  A: No. Splicing will create impedance discontinuities that result in signal reflections, gain errors, and loss of vibration data.

• Q: What should I do if the connector is loose?

  A: Ensure the ClickLoc latch is fully engaged. If the connection remains unstable, inspect for debris or contact fatigue and replace the connector assembly if required.

• Q: Is this cable suitable for high-vibration applications?

  A: Yes. The armored construction provides superior resistance to mechanical wear and vibration-induced fatigue compared to standard cable types.

• Q: How do I verify the cable is functioning correctly?

  A: Perform a continuity test and verify the gap voltage at the Proximitor end while the probe is at a known distance from the target.