330190-080-00-05 Bently Nevada 8 m ETR Extension Cable

Product Overview of the 330190-080-00-05

The Bently Nevada 330190-080-00-05 is a factory-configured 3300 XL Extended Temperature Range (ETR) extension cable. Specifically, it links a 3300 XL Proximitor Sensor to its associated monitor over an 8.0 meter (26.2 foot) run. Because the assembly carries CSA, ATEX, and IECEx approvals, it suits classified industrial environments where verified electrical behavior is mandatory. Consequently, every parameter below traces directly to the manufacturer's published specification.

Key Specifications and Electrical Behavior

• Cable length: 8.0 meters (26.2 feet), option code 080.
• Cable type: Standard 75 Ω triaxial, PFA insulated.
• Core resistance: 1.76 ± 0.26 Ω center-to-center.
• Jacket resistance: 0.53 ± 0.11 Ω outer-to-outer.
• Capacitance: 69.9 pF/m (21.3 pF/ft) typical.
• Temperature range: −52 °C to +260 °C (−62 °F to +500 °F).
• Minimum bend radius: 25.4 mm (1.0 in).
• Connector material: Gold-plated brass or beryllium copper.
• Maximum connector torque: 0.565 N·m (5 in·lbf).
• Weight: 34 g/m (0.4 oz/ft).

Notably, the low 1.76 Ω core resistance and 0.53 Ω jacket resistance preserve signal integrity across the full 8.0 meter span. Meanwhile, the 69.9 pF/m capacitance keeps high-frequency rolloff predictable. The PFA insulation extends the operating ceiling to +260 °C, which exceeds standard FEP cable limits. In addition, the 25.4 mm bend radius allows tight routing inside OEM machinery without damaging the triaxial shield.

Installation and Commissioning Notes

First, verify that field wiring uses 3-conductor shielded triad cable with tinned conductors, sized 0.2 to 1.5 mm² (16 to 24 AWG). Second, respect the 305 meter (1,000 foot) maximum total length between the Proximitor Sensor and the monitor. Third, set the radial vibration gap to −9 Vdc, approximately 1.27 mm (50 mils). Fourth, tighten connectors to 0.565 N·m (5 in·lbf) maximum to avoid thread damage. Finally, observe the 25.4 mm minimum bend radius during cable pulls.

Compatibility and System Integration

The 330190-080-00-05 belongs to the 3300 XL 8 mm family. Electrically and physically, these components interchange with non-XL 3300 5 mm and 8 mm parts when the minimum bend radius is respected. The linear range spans 2 mm (80 mils), beginning approximately 0.25 mm (10 mils) from the target and extending to 2.3 mm (90 mils), corresponding to roughly −1 to −17 Vdc. For functional safety, the platform supports SIL 2 with HFT = 0 and SIL 3 with HFT = 1. The assembly also meets EMC Directive 2014/30/EU via EN 61000-6-2 and EN 61000-6-4, plus RoHS Directive 2011/65/EU.

Reliability and Maintenance

Because the ETR cable operates from −52 °C to +260 °C, thermal cycling is the primary wear factor. Therefore, inspect connectors and jacket surfaces periodically for abrasion or cracking. Keep routing away from sharp edges and repeated flex points. Since the cable carries no user-serviceable internals, replace the assembly if resistance drifts beyond the stated tolerance.