Bently Nevada 330930-040-00-05 3300 NSv Extension Cable

Product Introduction

The Bently Nevada 330930-040-00-05 is a 3300 NSv Extension Cable manufactured in the U.S.A. This 4.0-meter (13.1 feet) cable is designed for use with the 3300 NSv proximity transducer system. It features a 75 Ω coaxial, fluoroethylene propylene (FEP) insulated construction, ensuring reliable signal transmission in demanding industrial environments. The model number 330930-040-00-05 indicates a cable length of 4.0 meters, without stainless steel armor, and with multiple agency approvals.

Technical Parameters

• Cable Length: 4.0 meters (13.1 feet)
• Connector and Cable Option: Without stainless steel armor
• Agency Approval: Multiple Approvals
• Extension Cable Material: 75 Ω coaxial, FEP insulated
• Operating and Storage Temperature: -51°C to +177°C (-60°F to +351°F)
• Shipping Weight: 1.5 kg
• DC Resistance (Center Conductor): 0.220 Ω/m (0.067 Ω/ft)
• DC Resistance (Shield): 0.066 Ω/m (0.020 Ω/ft)
• Capacitance: 69.9 pF/m (21.3 pF/ft) typical
• Linear Range: 1.5 mm (60 mils)
• Recommended Gap Setting: 1.0 mm (40 mils)
• Tensile Strength (max rated): 220 N (50 lb) at connectors and probe case
• Connector Material: Gold-plated brass

Parameter Analysis

The electrical characteristics of the 330930-040-00-05 extension cable are critical for accurate vibration and position measurements. The low DC resistance of the center conductor (0.220 Ω/m) and shield (0.066 Ω/m) minimizes signal loss over the cable length. The typical capacitance of 69.9 pF/m ensures consistent frequency response. The linear range of 1.5 mm (60 mils) defines the usable measurement span, with the recommended gap setting of 1.0 mm (40 mils) providing optimal operating point. The wide temperature range of -51°C to +177°C allows the cable to be used in extreme environments, while the FEP insulation provides excellent dielectric properties and chemical resistance.

Application Scenarios

The 330930-040-00-05 extension cable is an integral part of the 3300 NSv proximity transducer system, which is widely used for monitoring rotating machinery. Typical applications include turbines, compressors, pumps, and other rotating equipment where precise measurement of shaft vibration and axial position is essential for predictive maintenance and machine protection. The cable connects the eddy-current probe to the Proximitor Sensor, enabling continuous monitoring of machine health.

Installation Guide

When installing the 330930-040-00-05, ensure that the extension cable length and the probe length, when added together, equal the Proximitor Sensor total length. This is essential for accurate calibration. For field wiring, use a three-conductor shielded triad cable with conductor sizes from 0.2 to 1.5 mm² (16 to 24 AWG). The maximum recommended length between the 3300 XL NSv Proximitor Sensor and the monitor is 305 meters (1,000 feet). Refer to the frequency response graphs (Figure 16 and Figure 17) for signal rolloff at high frequencies when using longer field wiring lengths. The recommended gap setting is 1.0 mm (40 mils).

Compatibility

This extension cable is part of the 3300 NSv series and is compatible with 3300 XL NSv Proximitor Sensors and associated monitoring systems. The model number 330930-040-00-05 specifies a 4.0-meter cable without armor and with multiple approvals. Ensure that the connector and cable options match your system requirements. The cable uses gold-plated brass connectors for reliable electrical contact.

Maintenance Advice

To maintain optimal performance, handle the 330930-040-00-05 with care and avoid exceeding the maximum rated tensile strength of 220 N (50 lb) at the probe case, probe lead, and connectors. Regularly inspect the cable and connectors for signs of wear or damage. Store the cable within the specified temperature range of -51°C to +177°C. Keep connectors clean and protected from contamination to ensure reliable signal transmission.

Procurement Advice

When ordering the Bently Nevada 330930-040-00-05, verify that the cable length, armor option, and agency approval meet your application requirements. The “040” in the model number indicates 4.0 meters, “00” indicates no stainless steel armor, and “05” indicates multiple approvals. Confirm compatibility with your existing 3300 NSv system components to ensure seamless integration.

FAQ

Q1: What is the length of the 330930-040-00-05?
A1: The cable length is 4.0 meters (13.1 feet).

Q2: Does this cable include stainless steel armor?
A2: No, the “00” option indicates without stainless steel armor.

Q3: What is the operating temperature range?
A3: The operating and storage temperature range is -51°C to +177°C (-60°F to +351°F).

Q4: What is the recommended gap setting?
A4: The recommended gap setting is 1.0 mm (40 mils).

Q5: Can this cable be used with 3300 XL NSv Proximitor Sensors?
A5: Yes, it is designed for the 3300 NSv system and is compatible with 3300 XL NSv Proximitor Sensors.