The 330930-045-03-CN belongs to Bently Nevada's 3300 NSv series of extension cables, which are critical components in the 3300 XL NSv Proximity Transducer System. This cable provides a secure, high-integrity connection between the 3300 NSv proximity probe and the Proximitor Sensor, enabling accurate vibration and position measurements on rotating machinery. Its robust construction ensures reliable performance in harsh industrial environments.
This specific model offers a 4.5-meter (14.8-foot) length, features no stainless steel armor, and includes a connector protector for enhanced connection security. It also meets country-specific approval requirements (CN). Therefore, this cable is ideal for applications requiring dependable signal transmission over a moderate distance in spaces where flexibility is prioritized over heavy armor. We offer this genuine Bently Nevada cable for immediate delivery via FedEx, UPS, or DHL.
Cable Construction and Material
The 330930-045-03-CN uses a 75 Ω coaxial cable insulated with fluoroethylene propylene (FEP). This material provides excellent dielectric strength and resistance to oils, solvents, and high temperatures. Furthermore, the cable features gold-plated brass ClickLoc connectors on both ends, which lock securely to prevent loosening from vibration.
Electrical Characteristics
For reliable signal transmission, the extension cable exhibits specific electrical properties. The center conductor's DC resistance is 0.220 Ω/m (0.067 Ω/ft) , while the shield's DC resistance is 0.066 Ω/m (0.020 Ω/ft) . Additionally, the cable's typical capacitance is 69.9 pF/m (21.3 pF/ft) . These parameters ensure the cable accurately transmits the proximity probe's signal to the monitoring system.
Connector and Armor Options
The suffix "-03" in the model number indicates this cable comes without stainless steel armor but with connector protectors . This configuration makes the cable more flexible and easier to route in tight spaces, while the included connector protectors safeguard the ClickLoc connections from moisture and contaminants. Note that silicone tape is also provided with each 3300 NSv extension cable as an alternative protection method, though it is not recommended where the connection will be exposed to turbine oil.
System Length Requirements
When using this extension cable, you must ensure that the cable length, when added to the probe length, equals the Proximitor Sensor's total length. For example, a 4.5-meter cable should be paired with a probe whose length, combined with 4.5 meters, matches the sensor's specification. This ensures the system maintains proper calibration and linearity.
Environmental and Temperature Performance
The 330930-045-03-CN operates and stores reliably across a wide temperature range from -51°C to +177°C (-60°F to +351°F) . This broad operating range makes it suitable for use in extreme conditions commonly found in power generation, oil and gas, and heavy industrial processing plants.
Compatibility and Wiring
This extension cable is mechanically and electrically compatible with both 3300 NSv and previous 3300 RAM probes. It is designed to work with the 3300 XL NSv Proximitor Sensor. For field wiring beyond the cable, use a three-conductor shielded triad cable with a wire gauge of 0.2 to 1.5 mm² (16 to 24 AWG) . The maximum total length between the Proximitor Sensor and the monitor is 305 meters (1,000 feet) .
Linear Range and Gap Setting
The complete transducer system provides a linear range of 1.5 mm (60 mils) , starting at approximately 0.25 mm (10 mils) from the target. The recommended gap setting for optimal performance is 1.0 mm (40 mils) . This ensures the system operates within its most accurate measurement region for both static position and dynamic vibration monitoring.
Pre-Installation Checks
First, verify that the 330930-045-03-CN matches your required length and connector options. Specifically, confirm the absence of armor matches your routing environment and that the connector protectors are present. Next, inspect the ClickLoc connectors for any visible damage.
Making Connections
Begin by connecting the extension cable to the probe and the Proximitor Sensor. Push the connectors together until they click into place, indicating a secure lock. Then, install the provided connector protectors over the connections to shield them from environmental hazards. For applications inside the machine casing, avoid using the silicone tape and rely solely on the connector protectors.
Cable Routing
Route the extension cable with care, maintaining a minimum bend radius to prevent internal conductor damage. While this cable lacks armor, it remains durable. However, secure it using appropriate clamps and avoid sharp edges or heat sources to ensure long-term reliability.
1 x Bently Nevada 330930-045-03-CN 3300 NSv Extension Cable (4.5m FEP cable, no armor)
2 x ClickLoc connector protectors (pre-installed)
1 x Silicone self-fusing tape roll
1 x Installation instruction sheet
(Note: Calibration certificates, warranty documents, and mounting accessories are not included.)
All orders for the 330930-045-03-CN are dispatched promptly upon order confirmation. We ship exclusively via FedEx, UPS, or DHL to ensure fast and trackable delivery worldwide. Furthermore, each package is securely cushioned to prevent transit damage.
1. What is the difference between the -03 and -02 connector options for this cable?
The 330930-045-03-CN includes no stainless steel armor but does include connector protectors. In contrast, the -02 option includes stainless steel armor but no FEP jacket, also with connector protectors.
2. Can I use this 4.5m cable for longer system runs?
Yes, you can extend the system using field wiring. However, you must ensure the total length from the Proximitor Sensor to the monitor does not exceed 305 meters (1,000 feet) to avoid signal rolloff at high frequencies.
3. Is this cable compatible with older Bently Nevada probes?
Yes, the 3300 NSv extension cable is mechanically and electrically compatible with the previous 3300 RAM proximity probes, providing interchangeability for upgrades or replacements.
4. What does the "-CN" approval option signify?
The "-CN" suffix indicates this cable meets the specific agency approvals and standards required for use in China. This ensures compliance with local regulations for industrial equipment.
5. What should I do if the ClickLoc connector does not click into place?
Inspect both the cable's connector and the mating socket for dirt or bent pins. Additionally, ensure you are applying axial pressure squarely. If the issue persists, please contact our technical support team for further assistance.
| Brand Name | |
| Model No. | 330930-045-03-CN |
| Product Type | Extension Cable |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
