Bently Nevada 330190-075-00-CN 3300 XL ETR Extension Cable

Product Overview

A high-quality extension cable arrives as the 330190-075-00-CN from Bently Nevada. This cable belongs to the 3300 XL Extended Temperature Range (ETR) product family. The 330190-075-00-CN measures exactly 7.5 meters (24.6 feet) in total length. Engineers use this cable to connect 3300 XL proximity probes to Proximitor sensors. Consequently, the 330190-075-00-CN suits applications requiring longer cable runs. FEP insulation provides excellent dielectric properties and chemical resistance.

Ordering Information Breakdown

The model number 330190-075-00-CN follows a clear breakdown structure. First, 330190 identifies the base extension cable model number. Second, the -075 option specifies 7.5 meters (24.6 feet) of cable length. Third, the -00 option indicates standard (non-armored) cable construction. Finally, the -CN option specifies country-specific agency approval for China. Thus, the 330190-075-00-CN provides a standard, longer-length solution with proper certifications.

Electrical Specifications

The 330190-075-00-CN uses 75Ω triaxial construction for excellent signal integrity. Standard cable uses fluoroethylene propylene (FEP) insulation material. FEP offers outstanding dielectric properties and wide temperature tolerance. Consequently, the 330190-075-00-CN delivers reliable performance across varied conditions.

Nominal DC resistance from center conductor to center conductor:

Nominal DC resistance from outer conductor to outer conductor:

Capacitance: 69.9 pF/m (21.3 pF/ft) typical for the 330190-075-00-CN.

Linear Range and Gap Settings

The 330190-075-00-CN works within a precise linear measurement range. Total linear range spans 2 mm (80 mils) from the target surface. Linear range begins at approximately 0.25 mm (10 mils) from the target. The full linear zone extends from 0.25 to 2.3 mm (10 to 90 mils). This range corresponds to approximately -1 to -17 Vdc output signal.

For radial vibration measurements, the recommended gap setting is -9 Vdc. This voltage corresponds to approximately 1.27 mm (50 mils) from the target. Therefore, always set your probe gap to -9 Vdc when using the 330190-075-00-CN with 3300 XL systems.

Physical Specifications

Temperature Range and Environmental Tolerance

The 330190-075-00-CN performs reliably across a wide temperature spectrum. Operating and storage temperature spans -52°C to +177°C (-62°F to +350°F). This range suits most industrial applications, from cold outdoor sites to hot machinery spaces. However, for extreme heat above +177°C, consider the PFA-insulated ETR version instead. The FEP insulation of the 330190-075-00-CN still outperforms standard PVC cables significantly.

Minimum cable bend radius measures 25.4 mm (1.0 inch) for this cable. Exceeding this bend radius may damage internal conductors or insulation. Therefore, plan your cable routing carefully to avoid tight bends. The standard construction (-00 option) offers flexibility for general installations. Consequently, the 330190-075-00-CN installs easily in most cable trays and conduit systems.

Field Wiring Guidelines

Proper field wiring ensures optimal performance from the 330190-075-00-CN. Use 0.2 to 1.5 mm² (16 to 24 AWG) wire for field connections. Bently Nevada recommends using 3-conductor shielded triad cable for best results. Additionally, use tinned field wiring to prevent corrosion over time.

Maximum length between the 3300 XL Proximitor Sensor and the monitor is 305 meters (1,000 feet). However, longer field wiring lengths cause signal rolloff at high frequencies. Consult the frequency response graphs (Figures 10 and 12) for specific attenuation data. For high-frequency applications above 10 kHz, keep field wiring as short as possible. Thus, the 330190-075-00-CN provides a balanced solution for typical machinery monitoring.

Connector Details

The 330190-075-00-CN uses high-quality connectors for reliable connections. Connector material consists of gold-plated brass or gold-plated beryllium copper. Gold plating prevents corrosion and ensures low contact resistance over time. Maximum connector torque is 0.565 N•m (5 in•lbf) to prevent thread or internal damage.

Do not overtighten connectors on the 330190-075-00-CN. Excessive torque may strip threads or damage connector internals. Use a torque wrench for consistent, safe tightening each time. The standard cable option includes a durable locking ring for secure attachment without armor bulk.

Compatibility Information

The 330190-075-00-CN works with several 3300 XL components. 3300 XL 8 mm components are electrically and physically interchangeable. This interchangeability applies to both XL and non-XL 3300 components. However, always observe the minimum permissible cable bend radius of 25.4 mm. Non-XL 3300 5 mm and 8 mm components also work seamlessly with this cable.

Do not use the 330190-075-00-CN with incompatible probe models. Always verify compatibility before connecting to your specific system. The extended temperature range of -52°C to +177°C requires matching components for full benefit. Therefore, ensure your probes and Proximitor sensors also support the same temperature ratings.

Compliance and Certifications

The 330190-075-00-CN carries multiple important certifications. FCC compliance under part 15 ensures electromagnetic compatibility in the United States. Operation is subject to two conditions: no harmful interference and acceptance of received interference.

EMC compliance follows European Community Directive 2014/30/EU. Standards include EN 61000-6-2 (Immunity for Industrial Environments). Additionally, EN 61000-6-4 (Emissions for Industrial Environments) applies. RoHS compliance follows European Directive 2011/65/EU for hazardous substance restrictions.

Maritime certification meets 2019 Rules for Conditions of Classification. Applicable sections include Part 1, 1-1-1/7.7, 1-1-A3, and 1-1-A4. Offshore unit compliance includes Part 1, 1-1-4/9.7, 1-1-A2, and 1-1-A3.

Functional safety ratings include SIL 2 with HFT = 0. For higher reliability, SIL 3 is achievable with HFT = 1. Thus, the 330190-075-00-CN suits safety-critical machinery protection applications. The -CN agency approval ensures compliance with Chinese regulatory requirements specifically.

Signal Integrity and Performance

The 330190-075-00-CN maintains signal quality across its 7.5 meter length. Capacitance measures 69.9 pF/m typical, which preserves high-frequency response. Low capacitance minimizes signal rolloff even at extended lengths. The 75Ω triaxial construction matches standard 3300 XL system impedance perfectly.

DC resistance from center conductor to center conductor is 1.65 ± 0.25 Ω. Outer conductor resistance measures 0.49 ± 0.10 Ω for the same 7.5 meter length. Low resistance ensures minimal voltage drop across the extension cable. Consequently, the 330190-075-00-CN preserves measurement sensitivity and linearity accurately.

Frequency response remains flat within the standard proximity probe range. For most machinery monitoring below 10 kHz, no meaningful attenuation occurs. However, refer to the frequency response graphs for high-frequency applications. The environmental tolerance of FEP insulation enables reliable operation from -52°C to +177°C.

Installation Guide

Follow these steps to install the 330190-075-00-CN correctly.

1. Inspect the Cable: Check for any visible damage before installation begins.

2. Plan the Route: Avoid sharp bends below 25.4 mm radius along the path.

3. Connect to Probe: Attach one end to your 3300 XL proximity probe first.

4. Tighten Connector: Apply 0.565 N•m (5 in•lbf) torque maximum.

5. Route the Cable: Lay the 330190-075-00-CN along your planned path.

6. Secure with Clips: Use cable clips every 30-50 cm for strain relief.

7. Connect to Proximitor: Attach the remaining end to your Proximitor sensor.

8. Verify Continuity: Check center and outer conductor resistance values.

9. Set Probe Gap: Adjust to -9 Vdc (approximately 1.27 mm) for radial vibration.

Important: Never exceed the minimum bend radius of 25.4 mm (1.0 inch). Always use a torque wrench for connector tightening to 0.565 N•m. For high-temperature applications above +177°C, consider the PFA-insulated ETR version instead. Finally, verify compatibility with your specific probe model before installation.

Key Features and Benefits

• 7.5 Meter Length: Provides extended reach for larger machinery installations.

• Standard Construction: Offers flexibility for general industrial environments.

• FEP Insulation: Delivers excellent dielectric properties and chemical resistance.

• Wide Temperature Range: Operates reliably from -52°C to +177°C.

• Gold-Plated Connectors: Resists corrosion for long-term reliability.

• CN Agency Approval: Meets Chinese regulatory certification requirements.

The 330190-075-00-CN delivers reliable performance for standard monitoring applications. Consequently, this cable suits compressors, turbines, pumps, and generators. Its frequency response supports standard proximity probe measurements accurately. The sensitivity of your monitoring system improves with proper cable selection. Environmental tolerance includes wide temperature extremes and chemical exposure.

Package Contents

• One 330190-075-00-CN 3300 XL ETR extension cable (7.5 meters)

• One connector protective cap (installed on one end)

• One installation instruction sheet

Frequently Asked Questions (FAQ)

1. What does the -CN agency approval mean for the 330190-075-00-CN?

The -CN option indicates country-specific agency approval for China. This certification ensures the 330190-075-00-CN meets Chinese regulatory requirements. Therefore, this cable is suitable for installations requiring Chinese compliance documentation.

2. Can I use the 330190-075-00-CN in high-temperature environments above 177°C?

No, the FEP insulation of the 330190-075-00-CN limits operation to +177°C maximum. For temperatures up to +260°C, select the PFA-insulated ETR version instead. The standard cable works perfectly for most industrial applications below +177°C.

3. What is the difference between standard and armored versions?

The -00 option on the 330190-075-00-CN indicates standard (non-armored) construction. Standard cable weighs 34 g/m and offers good flexibility for general use. Armored cable weighs 103 g/m but provides better physical protection against impacts and abrasion.

4. How do I verify correct installation of the 330190-075-00-CN?

Measure DC resistance from center conductor to center conductor after installation. Expected value for 7.5 meters is 1.65 ± 0.25 Ω. Additionally, measure outer conductor resistance expecting 0.49 ± 0.10 Ω. Values outside these ranges indicate possible connector or cable damage.

5. Is the 330190-075-00-CN compatible with non-3300 XL systems?

The 330190-075-00-CN works with non-XL 3300 5 mm and 8 mm components. It also maintains compatibility with standard 3300 XL systems as designed. However, always verify electrical compatibility before connecting to other probe families or third-party equipment.