Description 330750-40 Bently High Temperature Velomitor System Product Dimensions: Product Description (Detailed Explanation) The 330750-40 is a non-contacting transducer that operates on the eddy current principle. It consists of a probe tip, a threaded body, and an integral cable. The “-40” suffix specifically denotes the unthreaded length or total length configuration (typically 4.0 meters total length depending on the specific catalog ordering code). Unlike standard proximity probes, the 3300 XL High Temperature version is manufactured with specialized materials—including proprietary PPS (Polyphenylene Sulfide) and high-performance adhesives—that allow the probe head and cable to withstand ambient temperatures significantly higher than standard industrial sensors. It must be used with a matching 3300 XL Proximitor® Sensor and extension cable for calibrated output. Product Parameters (Technical Specifications) Parameter Category Specification Probe Diameter 8 mm Total Length 4.0 Meters (approx. 13.1 feet) Thread Size 3/8-24 UNF (Standard) Operating Temperature (Tip) -52°C to 260°C (-62°F to 500°F) Target Material AISI 4140 Steel (Standard for calibration) Linear Range 2.0 mm (80 mils) Scale Factor 7.87 V/mm (200 mV/mil) when used with 3300 XL Proximitor Pressure Rating Up to 70 psi (4.8 bar) at the probe tip Ingress Protection IP68 (Probe head and integral cable) Product Advantages (Key Benefits) Extended Thermal Durability: Specifically engineered for the “hot end” of turbines where standard probes would melt or experience significant signal drift. Non-Contact Measurement: Eliminates mechanical wear and tear, allowing for continuous monitoring without impacting the rotating shaft. Interchangeability: Part of the 3300 XL system, allowing for consistent performance and compatibility with standard 3300 XL extension cables and Proximitors. Corrosion Resistance: The probe body is made of stainless steel, and the cable is fluid-resistant, protecting the sensor against oil, water, and industrial solvents. High Precision: Maintains a linear output across its full range, ensuring accurate vibration data for Machinery Protection Systems (MPS). Precautions (Important Notes) Cable Management: Never bend the integral cable beyond its minimum bend radius (typically 25.4 mm or 1 inch). Damage to the internal coax core will result in “Gap” errors or signal noise. Calibration Matching: The total length of the probe plus the extension cable must match the calibration of the Proximitor (e.g., a 5-meter system or 9-meter system). Mixing lengths will cause severe linearity errors. Terminal Protection: While the probe tip is rugged, the Gold-plated ClickLoc™ connectors must be kept clean and dry. Use silicone tape or connector protectors in humid environments. Tightening Torque: Do not over-tighten the probe into the mounting bracket. Use the specified torque (approx. 11 N·m) to prevent stripping the threads or damaging the internal sensor coil. Product Applications (Typical Use Cases) Gas Turbines: Monitoring radial vibration and axial thrust position near the exhaust or combustion sections. Steam Turbines: Measuring differential expansion and rotor position in high-pressure sections. High-Speed Compressors: Providing real-time orbit analysis for centrifugal compressors used in oil refineries. Hydrocarbon Pumps: Monitoring shaft stability in pumps moving high-temperature fluids. Internal Combustion Engines: Measuring crankshaft deflection or valve timing in large-bore industrial engines. Shipping Port: Xiamen, China Payment: Bank of Chicago, Bank of Singapore Express cooperation: fedex, DHL, UPS and your express account Service: Professional Sales provides 24 hours /7 days online service Please make an inquiry for more models: Bently 125720-01 BENTLY 21000-16-10-00-256-13-02 BENTLY 128229-01 BENTLY 3300/16 BENTLY 172323-01/172362-01 BENTLY 3300/20 BENTLY 19047-01 BENTLY 3300/36 BENTLY 3300/55-04-04-18-18-00-00-05-01 BENTLY 3300/40 BENTLY 330103-00-04-10-02-00 BENTLY 3300/45 Bently 330103-00-06-10-02-00 BENTLY 3300/47 BENTLY 330104-00-05-10-02-CN BENTLY 3300/48 BENTLY 330104-00-06-10-02-00 BENTLY 3300/55 BENTLY 330106-05-30-10-02-00 BENTLY 3300/61 BENTLY 330130-040-00-00 BENTLY 3300/65 BENTLY 330130-045-00-00 BENTLY 330101-00-48-10-02-05 BENTLY 330180-91-00 BENTLY 330103-00-03-05-02-05 BENTLY 330180-X0-05 BENTLY 330103-00-04-05-02-00 BENTLY 330500-02-00 BENTLY 330103-00-04-10-02-00 BENTLY 33A3BEPM-W4 BENTLY 330103-00-05-10-02-00 BENTLY 33A3BEPM-Z2 BENTLY 330103-00-06-10-02-00 BENTLY 3500/22-01-01-01 BENTLY 330103-00-08-10-02-00 BENTLY 3500/22M BENTLY 330103-00-15-10-02-00 BENTLY 3500/22M BENTLY 330104-00-04-10-02-00 Bently 3500/32 BENTLY 330104-00-06-10-02-00 BENTLY 3500/42M BENTLY 330104-00-08-10-02-00 BENTLY 3500/45-01-00 BENTLY 330104-00-15-10-02-05 BENTLY 3500/53-03-00 BENTLY 330104-00-15-10-02-CN BENTLY 3500/53-03-00 BENTLY 330104-05-10-10-02-CN BENTLY 3500/92 BENTLY 330104-08-16-05-02-05 BENTLY 3500/94 BENTLY 330105-02-12-10-02-00 BENTLY 3503E BENTLY 330105-02-12-10-02-05 BENTLY 369-HI-R-0-0-0-0 BENTLY 330106-05-30-05-02-00 BENTLY 125720-01 BENTLY 330106-05-30-10-02-00 BENTLY 125760-01 BENTLY 330130-040-00-00 BENTLY 125768-01 BENTLY 330130-040-00-CN BENTLY 125800-01 BENTLY 330130-040-01-00 BENTLY 125800-01125768-01 BENTLY 330130-040-01-05 BENTLY 125800-013500/25149369-0 BENTLY 330130-040-02-00 BENTLY 125840-01 BENTLY 330130-045-00-00 BENTLY 128229-01 BENTLY 330130-080-00-00 BENTLY 128229-0195 BENTLY 330130-085-00-05 BENTLY 133323-01 BENTLY 330180-50-00 BENTLY 133396-01 BENTLY 330180-51-00 BENTLY 133442-01 BENTLY 330180-51-05 BENTLY 133442-013500/50 BENTLY 330180-90-00 BENTLY 135473-01 BENTLY 330190-040-01-00 BENTLY 135489-04 BENTLY 330194-13-20-10-00 BENTLY 136188-02 BENTLY 330500-01-04 BENTLY 136703-01 BENTLY 330500-02-00 BENTLY 146031-01 BENTLY 330703-000-060-10-02-00 BENTLY 149992-01 BENTLY 330703-00-80-10-02-00 BENTLY 1X35869 BENTLY 330704-000-060-10-02-00 BENTLY 21000-16-10-00-256-03-02 BENTLY 330709-000-060-10-02-00





