BENTLY NEVADA 330930-040-02-00 3300 XL Series Extension Cable

The BENTLY NEVADA 330930-040-02-00, also cataloged as the 330930-040-02-00 extension cable, operates as a dedicated hardware component for signal transmission between proximity transducers and monitoring instrumentation within 3300 XL vibration monitoring systems.

Suffix Breakdown & Model Matrix

• 330930: 3300 XL standard extension cable base model.
• 040: 4.0 meters total cable length.
• 02: Connector and cable assembly featuring stainless steel armor for environmental protection.
• 00: Standard configuration; no special agency approval or modification.

Hardware Specifications

Mechanical Monitoring and Signal Integrity

The 3300 XL extension cable assembly is calibrated to maintain a sensitivity of 7.87 V/mm (200 mV/mil) when paired with compatible NSV XL 3300 transducers. Precise impedance matching of the coaxial path is required to satisfy rotor dynamics analysis requirements. Any discontinuity in the signal path, typically introduced by connector oxidation or mechanical stress on the center pin, results in deviations from the -10 VDC gap voltage target. The inclusion of stainless steel armor provides protection against abrasive conditions, though it must be ensured that the armor is not utilized as a return ground path to prevent signal noise ingress and ground loops within the monitor rack.

Frequently Asked Questions

Q: Is it permissible to connect this extension cable to a probe with a different thread size?

A: Compatibility is determined by the connector mating standards and the transducer frequency response. This cable is specifically indexed for the 3300 XL and NSV XL interface standards. Mating with non-standard connectors may introduce signal attenuation.

Q: How does the cable armor affect the system grounding?

A: The stainless steel armor is electrically isolated from the inner coaxial shield. Ensure that the shield is terminated at the proximitor terminal block according to the system installation manual to maintain proper signal reference.

Field Installation Guidelines

1. Inspect the male and female connector pins for mechanical alignment prior to mating.
2. Route the cable through protective industrial conduit to prevent tension on the connectors.
3. Tighten the coaxial coupling nut until firm contact is felt; avoid the use of mechanical wrenches to prevent damage to the connector body.
4. Ensure the cable bend radius does not fall below the manufacturer's specified minimum to avoid dielectric deformation and internal characteristic impedance shifts.
5. Verify the total loop length matches the proximitor sensor calibration index to ensure signal linearity within the probe linear range.