
3300 XL 7.5m Proximity Sensor Extension Cable – Installation & Maintenance Guide
Product Introduction
The Bently Nevada 330190-075-00-CN is a 7.5-meter armored extension cable from the 3300 XL series. It connects an 8mm proximity probe to its Proximitor sensor. This assembly forms a complete transducer system for non-contact vibration and displacement measurement. The 330190-075-00-CN features a corrugated stainless steel armor. This armor provides excellent crush resistance for mechanical protection. It also employs triaxial cable construction with PFA insulation. This design ensures signal integrity in extreme conditions. Many facilities use the Bently Nevada 330190-075-00-CN for turbines, compressors, and pumps. The "CN" suffix indicates it meets specific country approvals for the Chinese market.
Core Value
This cable delivers two critical benefits. Firstly, the armored construction protects against physical damage. It withstands crushing forces up to 2000 N/cm. Secondly, it supports an extended temperature range up to +260°C. This ensures reliable signal transmission even in high-heat zones. Furthermore, the 7.5-meter length offers flexibility for complex equipment layouts. Meanwhile, the gold-plated triaxial connector prevents corrosion. It also maintains a stable connection in oil-mist environments. As a result, you get longer system uptime and fewer unscheduled replacements. Moreover, this cable reduces signal attenuation over long runs. Specifically, it maintains a consistent output within the 3300 XL system's tolerance band. Therefore, the Bently Nevada 330190-075-00-CN directly improves overall asset protection.
Technical Insights
Understanding the cable's electrical characteristics is crucial for proper system performance. Specifically, the Bently Nevada 330190-075-00-CN has a capacitance of 69.8 pF per meter. This value matches the 3300 XL system's requirements exactly. Besides that, the cable resistance stays below 0.08 Ω per meter. This ensures minimal voltage drop across the 7.5-meter run. Additionally, the armor uses a flexible stainless steel design. It allows routing around sharp corners without cracking. However, you must respect the minimum bend radius of 50 mm. Exceeding this limit may damage the internal conductors. Meanwhile, the connector uses a 3-pin locking mechanism. This prevents accidental disconnection during machine operation. Furthermore, this cable works exclusively with 3300 XL 5mm and 8mm probes. You cannot interchange it with older 7200 series cables. The system's total length, probe plus extension, must not exceed 9.2 meters. Consequently, always verify your probe length before installing the 330190-075-00-CN.
Installation & Maintenance
Proper installation ensures maximum reliability from the Bently Nevada 330190-075-00-CN. Firstly, inspect the connector pins for any damage before installation. Secondly, clean the mating surfaces with isopropyl alcohol. This removes any oil or debris. Next, route the cable away from high-frequency power lines. This prevents electromagnetic interference. Moreover, use the provided cable clamps every 30 cm. This secures the cable and reduces vibration stress. Additionally, avoid pulling the cable by its armor. Always grip the connector body during mating. For maintenance, perform quarterly visual inspections. Check for kinks, cuts, or corrosion on the armor. Specifically, examine the connector area for moisture ingress. If you find any damage, replace the 330190-075-00-CN immediately. Do not attempt field repairs on armored cables. Meanwhile, keep spare cables in a dry, climate-controlled storage area. Finally, document all installation torque values for future reference.

Buyer’s Guide FAQ
1. What is the exact length of the Bently Nevada 330190-075-00-CN cable?
This cable provides a total length of 7.5 meters, including both the cable body and its connectors.
2. Can I use the 330190-075-00-CN with non-3300 XL systems?
No, this cable is exclusively designed for the 3300 XL proximity transducer system. It does not work with other series.
3. What temperature range does the 330190-075-00-CN support?
This cable operates from -51°C to +260°C, making it suitable for high-temperature industrial applications.
4. How do I extend the 330190-075-00-CN if I need a longer run?
You cannot extend this armored cable. You must select a different length variant from the 3300 XL product family instead.
5. What does the "-CN" suffix mean on the 330190-075-00-CN model?
The "-CN" suffix indicates specific regulatory approvals for the Chinese market. It ensures compliance with local standards.











