Product Overview
The Bently Nevada 330904-08-10-05-12-00 is a high-performance 3300 NSv proximity probe designed for precise vibration and position monitoring in critical rotating machinery. This Industrial Automation Module is part of the proven 3300 series, offering enhanced chemical resistance and superior side-view characteristics compared to earlier models. With its M8x1 threaded case and armored construction, it delivers reliable performance in demanding process compressor applications.
This specific configuration includes an 80 mm unthreaded length, a 100 mm overall case length, and a 0.5-meter total length with a miniature coaxial ClickLoc connector and FluidLoc cable. The probe is mechanically and electrically interchangeable with the previous 3300 RAM probe, simplifying upgrades and replacements.
Key Technical Specifications
The Bently Nevada 330904-08-10-05-12-00 offers the following verified performance parameters:
-
Linear Range: 1.5 mm (60 mils), starting at approximately 0.25 mm (10 mils) from the target (0.25 to 1.75 mm, approximately -1 to -13 Vdc).
-
Incremental Scale Factor (ISF): 7.87 V/mm (200 mV/mil), +12.5%/-20% including interchangeability error.
-
Deviation from Best Fit Straight Line (DSL): Less than ±0.06 mm (±2.3 mils).
-
Frequency Response: 0 to 10 kHz: +0, -3 dB typical, with up to 305 meters (1000 feet) of field wiring.
-
Probe DC Resistance: 4.0 ± 0.5 ohms (for 0.5 m length).
Installation and Setup Guidance
Proper installation of the Bently Nevada 330904-08-10-05-12-00 is crucial for accurate measurements. Follow these guidelines:
-
Mounting: Use finger-tight torque; maximum torque is 0.56 N•m (5 in•lb). For connector-to-connector connections, the recommended torque is 5.1 N•m (45 in•lb) with a maximum of 7.3 N•m (65 in•lb).
-
Thread Engagement: Maximum thread engagement for M8x1 cases is 12 mm. Ensure adequate engagement without over-torquing.
-
Field Wiring: Use three-conductor shielded triad cable. Recommended wire size is 0.2 to 1.5 mm² (16 to 24 AWG). Maximum field wiring length is 305 meters (1,000 feet).
-
Gap Setting: Set the recommended gap to 1.0 mm (40 mils) for optimal operation within the linear range.
Maintenance and Reliability
The Bently Nevada 330904-08-10-05-12-00 is built for long-term reliability, but routine checks are recommended:
-
Environmental Tolerance: Operating and storage temperature range is -52°C to +177°C (-62°F to +351°F), suitable for extreme conditions.
-
Chemical Resistance: The probe tip is made of polyphenylene sulfide (PPS), and the case is AISI 304 stainless steel, providing excellent resistance to corrosive media.
-
Pressure Integrity: The probe seals differential pressure via a Viton O-ring. Note that probes are not pressure-tested before shipment; contact our custom design department if pressure testing is required for your application.
-
Bend Radius: Maintain a minimum bend radius of 25.4 mm (1.0 in) for the cable, with or without armor, to prevent damage.
Compatibility and Integration
The 330904-08-10-05-12-00 is mechanically and electrically compatible with Bently Nevada's previous 3300 RAM proximity probe and extension cables. It works seamlessly with Bently Nevada 3300 XL NSv Proximitor sensors, which convert the probe's signal for monitoring systems. The probe's linear output (approximately -1 to -13 Vdc over the linear range) integrates directly with standard vibration monitors and data acquisition systems.
Selection Guide and Purchasing Advice
When selecting this probe, verify your required unthreaded length, overall case length, total length, and connector type. For this part number, the configuration includes a 0.5-meter total length with a miniature coaxial ClickLoc connector and FluidLoc cable. Ensure your application's target size meets the recommended minimum of 13 mm (0.5 in) diameter for accurate axial position measurements. For reliable sourcing, PLC Source PRO offers this Bently Nevada 330904-08-10-05-12-00 as new and original in factory packing with a 12-month warranty.