The 330130-070-03-05 extension cable is a high-performance component within Bently Nevada's 3300 XL series. This armored cable connects 8 mm proximity probes to Proximitor sensors, enabling precise vibration and position measurements on critical rotating machinery. Its 7.0‑meter length provides substantial reach for installations where sensors must be positioned far from monitoring equipment. Additionally, the armored construction delivers superior mechanical protection against crushing, abrasion, and impact. The 330130-070-03-05 is therefore an ideal solution for heavy-duty industrial applications such as steam turbines, gas compressors, and large pumps.
The 330130-070-03-05 features an armored cable with a connector protector, specifically designed for demanding environments. The armor provides enhanced resistance to physical damage, making it suitable for installations where cables may be exposed to mechanical stress. The armored extension cable weighs 103 g/m (1.5 oz/ft), with a total weight of approximately 0.72 kg for the 7.0‑meter length. By comparison, standard non‑armored cables weigh only 34 g/m. This significant weight difference reflects the rugged construction and superior protection offered by this model.
This extension cable maintains precise electrical properties essential for accurate proximity measurements over longer distances. The nominal DC resistance from center conductor to center conductor (RCORE) is 1.54 ± 0.23 Ω. Meanwhile, the resistance from outer conductor to outer conductor (RJACKET) measures 0.46 ± 0.09 Ω. Furthermore, the cable capacitance is 69.9 pF/m (21.3 pF/ft) typical. These specifications ensure consistent system performance even at extended lengths, delivering reliable data for machinery protection systems.
The 330130-070-03-05 carries multiple approvals for global use. Specifically, it holds CSA, ATEX, and IECEx certifications for hazardous area installations. These approvals confirm its suitability for Class I, Division 2, and Zone 2 locations. Consequently, this cable is an excellent choice for oil and gas, petrochemical, and power generation facilities where explosive atmospheres may exist. The 05 approval code indicates full compliance with these stringent international standards.
Manufactured in the U.S.A., this cable meets Bently Nevada's rigorous quality standards. It operates effectively between +18°C and +27°C (+64°F to +80°F) at a maximum altitude of 2000 meters. The probe features patented TipLoc molding, creating a robust bond between the probe tip and body that resists mechanical stress. Additionally, the CableLoc design provides 330 N (75 lbf) pull strength, ensuring the probe cable and tip remain securely attached even under vibration or accidental tension. The probe sealing material consists of a Viton® O‑ring, which seals differential pressure between the probe tip and case.
The 330130-070-03-05 accepts one non-contacting 3300-series 5 mm, 3300 8 mm, or 3300 XL 8 mm Proximity Probe and Extension Cable. This broad compatibility makes it a versatile choice for various monitoring configurations. The Proximitor sensor input is designed to work seamlessly with these probes, ensuring accurate and reliable measurements across different system architectures.
All 3300 XL probes, extension cables, and Proximitor sensors feature corrosion-resistant, gold-plated ClickLoc connectors. These connectors provide secure, positive locking that prevents accidental disconnection. The gold plating resists corrosion and ensures low contact resistance, maintaining signal integrity even in harsh environments. This connector design simplifies installation and reduces maintenance requirements.
When used with 3300 XL 8 mm components, the 330130-070-03-05 delivers reliable monitoring performance. The linear range spans 2 mm (80 mils), beginning at approximately 0.25 mm (10 mils) from the target. Output voltage ranges from –1 to –17 Vdc over this linear range, providing a clear signal proportional to the gap. The power supply requirement is -17.5 Vdc to -26 Vdc at 12 mA maximum consumption. Operation at voltages more positive than -23.5 Vdc may reduce the linear range, so careful power supply selection is important. The output resistance is 50 Ω, while supply sensitivity remains below 2 mV change per volt change in input voltage.
This cable system demonstrates exceptional environmental resilience. Specifically, the Average Scale Factor (ASF) changes by less than 3% when tested in 93% humidity for up to 56 days, in accordance with IEC standard 68‑2‑3. This performance ensures stable, accurate measurements even in humid or harsh operating conditions commonly found in coastal facilities or tropical environments.
For field wiring, use 0.2 to 1.5 mm² (16 to 24 AWG) 3‑conductor shielded triad cable with tinned wiring. The maximum field wiring length is 305 meters (1,000 feet) between the Proximitor sensor and the monitor. Consult the frequency response graphs in the product documentation to understand signal rolloff at high frequencies when using longer wiring lengths. Proper shielding and grounding practices are essential for maintaining signal integrity over extended field wiring runs.
Installing the 330130-070-03-05 extension cable requires careful attention to best practices. First, always power down the monitoring system before connecting or disconnecting any cables. Next, attach the extension cable to the 3300 XL 8 mm probe using the ClickLoc connector, ensuring it is fully seated and locked. Then, connect the opposite end to the Proximitor sensor, following the manufacturer's torque specifications.
Each 3300 XL extension cable includes silicone tape as an alternative to connector protectors. However, do not use silicone tape where the probe‑to‑extension cable connection will be exposed to turbine oil, as this may compromise the seal. For applications requiring pressure seal testing, contact Bently Nevada's custom design department directly. Probes are not pressure tested prior to shipment, so this step is essential for critical or high‑risk installations.
For optimal performance, ensure the armored cable is properly supported and secured to prevent excessive bending or strain. The minimum bend radius should be observed to avoid damaging the internal conductors or armor. Additionally, keep the cable away from sharp edges and high‑temperature surfaces to maintain its protective qualities.
1 x 330130-070-03-05 Armored Extension Cable with connector protector
Silicone tape (included as an optional sealing alternative)
1. What is the length of the 330130-070-03-05 extension cable?
This cable measures 7.0 meters (22.9 feet) in length, providing extended reach for sensor installations.
2. Is the 330130-070-03-05 approved for hazardous locations?
Yes, it carries CSA, ATEX, and IECEx approvals for Class I, Division 2, and Zone 2 hazardous areas.
3. What makes this cable armored, and why is that important?
The armored construction provides enhanced mechanical protection against crushing, abrasion, and impact, making it suitable for harsh industrial environments.
4. Can I use silicone tape instead of the connector protector?
Silicone tape is included and can be used for some applications. However, avoid using it where the connection will be exposed to turbine oil.
5. What is the pull strength of the CableLoc design?
The patented CableLoc design provides 330 N (75 lbf) pull strength, ensuring secure attachment of the probe cable and tip.
| Brand Name | |
| Model No. | 330130-070-03-05 |
| Product Type | Extension Cable |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
