Bently Nevada 330730-040-03-05 Extension Cable

Bently Nevada 330730-040-03-05 3300 XL 11 mm Extension Cable

Product Introduction

The Bently Nevada 330730-040-03-05 is a high-quality 3300 XL series extension cable. This 11 mm cable connects your proximity probe to the Proximitor® sensor for reliable signal transmission. For instance, many plants use this 3300 XL cable in turbine vibration monitoring, compressor protection, and pump shaft position systems.

This model 330730-040-03-05 offers a 4.0-meter (13.1 feet) length. The cable includes armored construction (option 03) with a connector protector for added reliability. Furthermore, the multiple approvals option (05) ensures compliance with international safety standards. This extension cable delivers consistent performance in harsh industrial environments.

The connector protector provides extra sealing against humidity and moisture. Additionally, silicone tape is included with each cable for alternative sealing options. However, silicone tape is not recommended where the connection will be exposed to turbine oil.

Technical Specifications

The Bently Nevada 330730-040-03-05 uses 75Ω triaxial cable with FEP insulation. This construction ensures excellent signal integrity over the 4.0-meter length. The cable capacitance measures 69.9 pF/m (21.3 pF/ft) typical for consistent system performance.

DC resistance values are precisely controlled. The center conductor resistance (RCORE) measures 1.0 Ω ± 0.25 . Meanwhile, the coaxial conductor resistance (RJACKET) is 0.3 Ω ± 0.1 . These tight tolerances ensure accurate signal transmission from the probe to the monitoring system.

The connector material is gold-plated brass for low contact resistance. The armored version uses flexible AISI 302 SST with an FEP outer jacket. Consequently, this 3300 XL extension cable withstands mechanical stress while maintaining electrical performance.

Mechanical and Environmental Ratings

The extension cable operates from -51°C to +177°C (-60°F to +351°F). This broad range supports most industrial applications across various climates. The armored cable weighs 140 g/m (1.5 oz/ft), totaling approximately 0.56 kg for the 4.0-meter length.

Tensile strength ratings are impressive. The maximum rated pull is 330 N (75 lbf) from probe case to probe lead. Additionally, the lead-to-extension cable connectors withstand 270 N (60 lbf). These ratings ensure durability during installation and long-term service.

The connector protector option provides enhanced environmental sealing. This is particularly valuable in humid or moist environments. Therefore, we recommend using connector protectors for all installations to maximize system reliability.

Installation Guidelines

Follow these steps to install the Bently Nevada 330730-040-03-05 correctly:

• Cable inspection : Check the connectors for any damage before installation. Then clean them with a lint-free cloth if necessary.

• Connector mating : Align the connectors carefully and push until they click. Next, pull gently to verify a secure connection.

• Connector protection : Install the connector protector over the joined area. Alternatively, use the supplied silicone tape for sealing.

• Cable routing : Avoid sharp bends and excessive tension. Maintain a minimum bend radius suitable for armored cable.

• Cable securing : Use cable ties every 300 mm to prevent vibration-induced chafing. Do not over-tighten the ties.

For field wiring, use three-conductor shielded triad cable. The recommended wire size is 0.2 to 1.5 mm² (16 to 24 AWG). The maximum field wiring length is 305 meters (1,000 feet) between the Proximitor sensor and the monitor.

Packaging List

Your shipment for the Bently Nevada 330730-040-03-05 contains:

• 1 x 3300 XL 11 mm extension cable (4.0 meters, armored with connector protector)

• 1 x connector protector (installed)

• 1 x roll of silicone tape (for alternative sealing)

• 1 x printed installation instruction sheet

Shipping method : FedEx, UPS, or DHL (tracking number provided upon dispatch).

Frequently Asked Questions

1. Is the 330730-040-03-05 compatible with 3300 XL 8 mm probes?
Yes, this Bently Nevada 330730-040-03-05 works with both 8 mm and 11 mm 3300 XL probes. The triaxial connector is standard across the series.

2. What is the purpose of the connector protector?
The connector protector seals the connection against moisture and humidity. Therefore, it enhances system reliability in damp environments.

3. Can I use silicone tape instead of the connector protector?
Yes, silicone tape is provided as an alternative sealing method. However, do not use it where the connection will be exposed to turbine oil.

4. What is the total system length with this extension cable?
The 4.0-meter cable adds to your probe length. The 3300 XL system supports total lengths of 5 or 9 meters including the extension cable.

5. Does this cable carry hazardous area approvals?
Yes, the approval option 05 indicates multiple approvals. These typically include CSA, ATEX, and IECEx for use in potentially explosive atmospheres.