Product Introduction
The Bently Nevada 330702-00-26-10-11-CN belongs to the trusted 3300 XL platform, widely recognized for superior reliability in critical rotating machinery protection. This 11 mm proximity probe delivers non-contact displacement measurements essential for early fault detection in bearings, thrust bearings, and gearboxes. Its rugged construction, featuring AISI 304 stainless steel housing and PPS tip, ensures durability under harsh industrial conditions.
Technical Specifications
The 3300 XL 11 mm Proximity Probe uses a 75 Ω triaxial cable with FEP insulation, offering excellent signal integrity over its total length of 1.0 metre (3.3 feet). Its DC resistance from the center conductor to the outer conductor measures 5.9 ± 0.5 ohms, ensuring consistent system calibration. The probe case features a 1/2-20 UNF thread with a maximum engagement length of 0.750 inches. For installation, the recommended mounting torque is 15.2 N•m (133 in•lb), while the maximum rated torque is 45.2 N•m (400 in•lb). Additionally, the connector-to-connector joint requires only finger-tight torque, with a maximum of 0.565 N•m (5 in•lb) to prevent damage. Specifically, this model includes the "CN" agency approval for country-specific compliance, making it suitable for diverse regional requirements. Furthermore, the FluidLoc cable and ClickLoc connector protector enhance reliability against moisture and vibration-induced loosening.
Mechanical and Environmental Ratings
This probe withstands extreme operating and storage temperatures from -51°C to +177°C (-60°F to +351°F). However, prolonged exposure below -34°C (30°F) may compromise the Viton O-ring pressure seal. The probe case material, AISI 304 SST, resists corrosion, while the PPS tip offers excellent chemical resistance. Moreover, the minimum bend radius for the probe cable, even with stainless steel armor, is only 25.4 mm (1.0 inch), allowing flexible routing in tight machine casings.
Installation Guidelines
Proper installation of the Bently Nevada 330702-00-26-10-11-CN requires careful attention to thread engagement and torque values. First, clean the mounting hole thoroughly to avoid contamination. Next, thread the probe into the housing by hand until snug, then apply the recommended torque of 15.2 N•m using a calibrated wrench. Simultaneously, ensure the cable maintains a bend radius larger than 25.4 mm to preserve internal conductor integrity. For differential pressure sealing, the Viton O-ring provides effective isolation between the probe tip and case. Therefore, if your application demands pressure testing, contact Bently Nevada's custom design department prior to installation.
Packaging List
Bently Nevada 330702-00-26-10-11-CN 3300 XL 11 mm proximity probe (1 unit)
Pre-attached 1.0 metre triaxial FEP-insulated cable with FluidLoc technology
Miniature coaxial ClickLoc connector with connector protector
Installation torque specification sheet
Product identification label
FAQ
1. What is the total cable length of this 3300 XL probe?
The 330702-00-26-10-11-CN includes a 1.0 metre (3.3 feet) cable, as indicated by the "10" option in its model number.
2. Can this probe be used in high-pressure turbine applications?
Yes, the 3300 XL series supports differential pressure sealing via a Viton O-ring, but they are not factory pressure-tested. For certified pressure seals, request custom testing.
3. What is the difference between the 1/2-20 UNF and M16x1.5 thread options?
This specific variant uses the 1/2-20 UNF thread standard. The M16x1.5 option is available for metric mounting requirements but must be specified at order.
4. Is the cable armor standard on this model?
Yes, this probe includes stainless steel armor for enhanced mechanical protection, and the minimum bend radius remains 25.4 mm with or without this armor.
5. What shipping carriers do you use for this sensor?
All orders ship via FedEx, UPS, or DHL with full tracking and protective packaging to ensure safe delivery.
