Bently Nevada 330190-085-01-00 | Armored Extension Cable

Bently Nevada 330190-085-01-00 3300 XL ETR Armored Extension Cable – Product Introduction

The Bently Nevada 330190-085-01-00 belongs to the renowned 3300 XL series. It functions as a durable interconnect between the Proximitor Sensor and the monitoring system. This extension cable combines extended temperature range capability with robust armored protection. Its PFA insulation withstands extreme thermal conditions. The cable length reaches 8.5 meters, providing greater installation flexibility. Moreover, the armored construction shields the cable from mechanical stress and physical damage. This 3300 XL ETR armored extension cable delivers reliable signal transmission in demanding vibration monitoring applications across various industries.

Electrical Characteristics

The Bently Nevada 330190-085-01-00 demonstrates precise and stable electrical performance. Its nominal DC resistance from center conductor to center conductor measures 1.87 ± 0.28 Ω for the 8.5-meter length. Furthermore, the outer conductor resistance (RJACKET) is 0.56 ± 0.11 Ω. The extension cable capacitance typically runs at 69.9 pF/m (21.3 pF/ft), ensuring consistent signal transmission characteristics. These values guarantee accurate signal integrity across the entire cable length. For field wiring, we recommend using 0.2 to 1.5 mm² (16 to 24 AWG) tinned copper conductors. Specifically, a 3-conductor shielded triad cable provides optimal noise rejection. The maximum allowable field wiring length between the 3300 XL Proximitor Sensor and the monitor is 305 meters (1,000 feet). Nevertheless, longer wiring runs may introduce signal roll-off at higher frequencies, so always consult the frequency response graphs for your specific configuration.

Linear Range and Gap Setting

This 3300 XL ETR armored extension cable supports a 2 mm (80 mils) linear range. The linear range begins at approximately 0.25 mm (10 mils) from the target surface. It extends from 0.25 to 2.3 mm (10 to 90 mils), corresponding to roughly –1 to –17 Vdc output. For radial vibration measurement applications, the recommended gap setting is -9 Vdc. This setting equates to approximately 1.27 mm (50 mils) physical gap. Therefore, proper gap adjustment remains essential for achieving optimal sensor linearity and measurement accuracy.

Temperature Range and Cable Construction

The extended temperature range cable utilizes perfluoroalkoxy (PFA) insulation material. This advanced insulation supports an operating and storage temperature range from -52°C to +260°C (-62°F to +500°F). In comparison, standard FEP-insulated cables only rate for -52°C to +177°C. Consequently, the Bently Nevada 330190-085-01-00 excels in high-temperature environments such as turbine decks and kiln areas. The armored option adds a rugged outer layer that significantly enhances mechanical durability. Its minimum cable bend radius is 25.4 mm (1.0 in), which facilitates routing in confined spaces. Additionally, the connector features gold-plated brass or gold-plated beryllium copper construction. The maximum connector torque is 0.565 N•m (5 in•lbf), ensuring secure and reliable connections.

Mechanical and Environmental Parameters

The armored extension cable weighs approximately 103 g/m (1.5 oz/ft), substantially heavier than standard non-armored versions at 34 g/m (0.4 oz/ft). This added weight reflects the robust protective layer that guards against abrasion, impact, and crushing forces. The connector material uses gold-plated brass or gold-plated beryllium copper, providing excellent corrosion resistance and consistent electrical contact. Furthermore, the cable design complies with stringent industrial quality standards. Its relatively small bend radius enables easy installation around equipment and through cable trays. Meanwhile, the PFA insulation offers outstanding chemical resistance and superior dielectric strength. These mechanical attributes ensure the 3300 XL ETR armored extension cable delivers long service life even in harsh operating conditions.

Compliance and Certifications

The Bently Nevada 330190-085-01-00 meets FCC Part 15 regulatory requirements. Operation depends on two conditions: this device may not generate harmful interference, and it must accept any interference received. For electromagnetic compatibility, it conforms to European Community Directive 2014/30/EU, adhering to EN 61000-6-2 (Immunity for Industrial Environments) and EN 61000-6-4 (Emissions for Industrial Environments). It also complies with RoHS Directive 2011/65/EU, ensuring restricted use of hazardous substances. For maritime and offshore applications, it satisfies the 2019 Rules for Conditions of Classification, Part 1, sections 1-1-1/7.7, 1-1-A3, and 1-1-A4, along with offshore unit standards 1-1-4/9.7, 1-1-A2, and 1-1-A3. In functional safety installations, this cable supports SIL 2 with HFT = 0 and SIL 3 with HFT = 1, making it suitable for safety-critical monitoring systems.

Frequently Asked Questions

Q1: What makes the Bently Nevada 330190-085-01-00 different from the non-armored version?
This cable features an additional armored outer layer that provides superior mechanical protection against abrasion, crushing, and impact. It weighs more (103 g/m vs 34 g/m) and offers enhanced durability for harsh industrial environments.

Q2: What is the maximum temperature rating for this armored extension cable?
The Bently Nevada 330190-085-01-00 handles temperatures from -52°C to +260°C (-62°F to +500°F), thanks to its PFA insulation. This makes it ideal for high-temperature applications near turbines, engines, and furnaces.

Q3: Can I interchange this cable with standard 3300 non-XL components?
Yes, the 3300 XL 8 mm components are electrically and physically interchangeable with non-XL 3300 5 mm and 8 mm components, provided you observe the minimum cable bend radius of 25.4 mm.

Q4: What field wiring specifications work best with this cable?
We recommend using 0.2 to 1.5 mm² (16 to 24 AWG) tinned copper wire with a 3-conductor shielded triad configuration. This arrangement provides optimal noise immunity and signal quality.

Q5: Does the Bently Nevada 330190-085-01-00 carry hazardous area approvals?
This particular variant (agency approval option 00) does not include CSA, ATEX, or IECEx certifications. For hazardous area applications, please select a variant with the appropriate agency approval option.