Product Overview of the 330190-075-00-CN
The Bently Nevada 330190-075-00-CN is a 3300 XL Extended Temperature Range (ETR) extension cable engineered for precision machinery protection. Specifically, it extends the connection between a 3300 XL Proximitor Sensor and its monitor. Because the assembly uses PFA insulation, it tolerates extreme heat that standard FEP cables cannot. Consequently, this exact cable suits gas turbines, steam turbines, and compressors where radiant heat is unavoidable.
Key Specifications and Electrical Performance
Every value below is verified against the manufacturer's data for this model.
- Length: 7.5 meters (24.6 feet)
- Cable type: Standard, 75 Ω triaxial, PFA insulated
- Center conductor resistance: 1.65 ± 0.25 Ω
- Outer conductor resistance: 0.49 ± 0.10 Ω
- Capacitance: 69.9 pF/m (21.3 pF/ft) typical
- Operating temperature: −52 °C to +260 °C (−62 °F to +500 °F)
- Minimum bend radius: 25.4 mm (1.0 in)
- Weight: 34 g/m (0.4 oz/ft)
- Connector material: Gold-plated brass or gold-plated beryllium copper
- Maximum connector torque: 0.565 N·m (5 in·lbf)
- Agency approval: CN Country Specific
The 260 °C rating is the defining advantage. Specifically, it exceeds the −52 °C to +177 °C limit of the standard FEP cable. Therefore, the ETR variant prevents insulation breakdown in high-temperature zones.
Comparison with Standard 3300 XL Cable
- Insulation: PFA (ETR) vs. FEP (standard)
- Maximum temperature: +260 °C vs. +177 °C
- Electrical interchangeability: Both are 75 Ω triaxial
- Physical interchangeability: Both fit 3300 XL 8 mm components
Because the electrical and physical interfaces match, you can substitute the ETR cable directly when the standard cable would overheat.
Applications and Integration
This cable connects a 3300 XL Proximitor Sensor to a monitor. The maximum field wiring distance is 305 meters (1,000 feet). However, longer runs cause signal rolloff at high frequencies. Therefore, keep the total length within the specified limit. The 7.5 m length suits turbine decks and compressor skids where the monitor sits in a cooler cabinet. Additionally, the 25.4 mm bend radius allows routing through tight conduit.
Installation Notes
Route the cable away from sharp edges and respect the 25.4 mm minimum bend radius. Use 3-conductor shielded triad cable for field wiring. Field wiring accepts 0.2 to 1.5 mm² (16 to 24 AWG). Tighten connectors to 0.565 N·m (5 in·lbf) maximum. Because the PFA jacket resists heat, no additional thermal wrap is required within the rated range.
Availability & Condition at AutoDCSTech
| Part Number | 330190-075-00-CN |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
