Product Overview
When upgrading legacy vibration monitoring systems, the Bently Nevada 330709-000-040-90-11-00 3300 XL 11 mm Proximity Probes offers a direct replacement with enhanced durability. This M16 x 1.5 thread probe without armor measures 40 mm overall case length and includes a 9.0-meter (29.5 feet) FluidLoc cable with a miniature coaxial ClickLoc connector and connector protector. Designed for a wide operating temperature range from -52°C to +177°C, it ensures reliable performance in demanding industrial environments.
Technical Specifications
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Probe dc Resistance (9.0m length): 8.5 ± 1.1 Ω (center to outer conductor)
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Minimum Target Size (flat surface): 30.5 mm (1.2 in) diameter
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Minimum Shaft Diameter: 152 mm (6.0 in)
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Probe Tip Material: Polyphenylene sulfide (PPS)
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Probe Case Material: AISI 304 stainless steel
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Probe Cable: 75 Ω triaxial, FEP insulated, 9 m total length
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Probe Case Torque (M16x1.5): 21.1 N·m (187 in·lb)
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Connector-to-connector torque (max): 0.565 N·m (5 in·lb)
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Minimum Bend Radius: 25.4 mm (1.0 in)
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Thread: M16x1.5, max engagement 24 mm
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Operating/Storage Temperature: -52°C to +177°C
Industry Applications
The Bently Nevada 330709-000-040-90-11-00 is ideal for vibration monitoring of rotating machinery such as turbines, compressors, and pumps in oil & gas, power generation, and petrochemical plants. Its robust PPS tip and stainless steel case withstand harsh environments, while the 9.0-meter cable allows flexible installation near critical assets.
Installation & Setup Guidance
When installing the 330709-000-040-90-11-00, ensure the probe case torque is set to 21.1 N·m (187 in·lb) for the M16x1.5 thread. The maximum thread engagement is 24 mm. Use finger tight for connector-to-connector torque, not exceeding 0.565 N·m (5 in·lb). Maintain a minimum bend radius of 25.4 mm to avoid cable damage. Observe the temperature limitations: avoid exposing the probe below -34°C (-30°F) to prevent pressure seal failure.
Selection Guide & Purchasing Advice
Before ordering, confirm the required cable length (this model includes 9.0 meters) and thread type (M16x1.5). For applications needing armor or different connector options, consider other 330709 variants. UBEST Automation (ubest101.myshopify.com) supplies genuine Bently Nevada proximity probes and can assist with compatibility checks.