Product Introduction
The Bently Nevada 330730-040-00-00 is a 3300 XL 11 mm Extension Cable designed for precision proximity measurement systems. This cable ensures stable signal transmission in critical rotating machinery applications, such as turbines and compressors. With a length of 4.0 meters (13.1 feet) and standard cable construction, it maintains low capacitance (69.9 pF/m) and consistent impedance, minimizing signal loss over distance. The Bently Nevada 330730-040-00-00 is manufactured in the USA and meets the demanding requirements of industrial automation environments.
Technical Specifications
| Parameter |
Value |
| Manufacturer |
Bently Nevada |
| Product Number |
330730-040-00-00 |
| Product Type |
3300 XL 11 mm Extension Cable |
| Cable Length |
4.0 meters (13.1 feet) |
| Connector Option |
Standard cable (00) |
| Agency Approval |
Not required (00) |
| Capacitance |
69.9 pF/m (21.3 pF/ft) typical |
| DC Resistance (Center Conductor) |
1.0 ± 0.25 Ω |
| DC Resistance (Coaxial Conductor) |
0.3 ± 0.1 Ω |
| Operating Temperature |
-52°C to +177°C (-62°F to +351°F) |
| System Length |
5 or 9 meters including extension cable |
| Cable Material |
75 Ω triaxial, FEP insulated |
| Armor (Optional) |
Flexible AISI 302 SST with FEP outer jacket |
| Tensile Strength (Probe Case to Lead) |
330 N (75 pounds) |
| Tensile Strength (Lead to Connectors) |
270 N (60 pounds) |
| Connector Material |
Gold-plated brass |
Application Advantages
The Bently Nevada 330730-040-00-00 extension cable excels in environments where fluid ingress and temperature extremes threaten signal integrity. The FluidLoc cable option prevents oil and other liquids from leaking through the cable interior, ideal for turbine lube oil systems. The optional flexible AISI 302 stainless steel armor provides mechanical protection in high-vibration areas. With a capacitance of only 69.9 pF/m, this cable maintains the linear range of 4.0 mm (160 mils) for accurate vibration and displacement measurements. The wide temperature range (-52°C to +177°C) ensures reliability in both cryogenic and high-heat processes.
Installation Guidelines
Proper installation of the Bently Nevada 330730-040-00-00 is critical for optimal performance. Use silicone tape (provided with each cable) or connector protectors for humid environments; note that silicone tape is not recommended when exposed to turbine oil. For field wiring, use three-conductor shielded triad cable (0.2 to 1.5 mm² or 16 to 24 AWG, or 0.25 to 0.75 mm² with ferrules). The maximum field wiring length between the 3300 XL Proximitor Sensor and monitor is 305 meters (1,000 feet). Ensure a recommended gap setting of 2.5 mm (100 mils) from the target. When using zener barriers, note that the extended DSL range (0.5 to 5.0 mm) is not applicable.
Buying Guide
Before ordering the Bently Nevada 330730-040-00-00, verify the required cable length and connector options. This model includes a standard cable (Option 00) and no agency approval (Option 00). If liquid ingress is a concern, select the FluidLoc option when ordering. For mechanical protection, consider the optional armor (AISI 302 SST with FEP jacket). UBEST Automation offers genuine Bently Nevada parts with competitive pricing and fast worldwide shipping. Contact UBEST Automation for assistance in selecting the right extension cable for your 3300 XL system.