Product Overview
When vibration monitoring accuracy matters most, the Bently Nevada 330904-00-15-05-12-05 3300 NSv Proximity Probe delivers reliable shaft displacement and vibration data for critical rotating machinery. This industrial automation module is engineered for process compressor applications, offering superior chemical resistance compared to older 3300 RAM probes. The 330904-00-15-05-12-05 is mechanically and electrically interchangeable with previous 3300 RAM systems, simplifying upgrades and replacements.
Key Features & Benefits
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Enhanced Chemical Resistance: The NSv probe withstands harsher process environments than the 3300 RAM, reducing failures in compressor service.
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Improved Side-View Characteristics: Provides better gap measurement accuracy at the same target distance compared to 3000-series 190 probes.
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Robust Construction: Polyphenylene sulfide (PPS) tip and AISI 304 stainless steel case ensure durability.
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Flexible Cable Options: Available in 0.5, 1, 5, or 7 meter lengths with 75 Ω coaxial, FEP-insulated cable.
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Wide Operating Range: Functions from -52°C to +177°C (-62°F to +351°F), suitable for extreme conditions.
Technical Specifications
| Parameter |
Value |
| Probe DC Resistance (RPROBE) |
4.0 ± 0.5 ohms (for 0.5 m probe) |
| Extension Cable DC Resistance |
Center conductor: 0.220 Ω/m (0.067 Ω/ft); Shield: 0.066 Ω/m (0.020 Ω/ft) |
| Extension Cable Capacitance |
69.9 pF/m (21.3 pF/ft) typical |
| Field Wiring |
0.2 to 1.5 mm² (16 to 24 AWG); recommended three-conductor shielded triad cable; max length 305 m (1000 ft) |
| Linear Range |
1.5 mm (60 mils), from 0.25 to 1.75 mm (10 to 70 mils) approximately -1 to -13 Vdc |
| Recommended Gap Setting |
1.0 mm (40 mils) |
| 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 |
| Target Size (flat target) |
Minimum: 8.9 mm (0.35 in) diameter; Recommended: 13 mm (0.5 in) diameter |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel (SST) |
| Probe Cable Specifications |
75 Ω coaxial, FEP insulated; lengths: 0.5, 1, 5, or 7 meters |
| Recommended Torque |
Finger tight; Maximum torque 0.56 N•m (5 in•lb) |
| Minimum Bend Radius |
25.4 mm (1.0 in) with or without SST armor |
| Operating Temperature |
-52°C to +177°C (-62°F to +351°F) |
| Storage Temperature |
-52°C to +177°C (-62°F to +351°F) |
| Probe Pressure Sealing |
Viton O-ring; not pressure tested prior to shipment |
| Connector-to-Connector Torque (M8X1 probe cases) |
Maximum rated: 7.3 N•m (65 in•lb); Recommended: 5.1 N•m (45 in•lb) |
| Probe Case Thread Engagement |
M8x1, maximum 12 mm |
Installation & Setup
Proper installation ensures accurate readings. Mount the 330904-00-15-05-12-05 with the recommended torque values: finger tight for the probe, and 5.1 N•m (45 in•lb) for connector-to-connector connections. Maintain the minimum bend radius of 25.4 mm (1.0 in) to prevent cable damage. Use the specified field wiring (0.2 to 1.5 mm²) and keep the total wiring length under 305 meters (1,000 feet) to preserve signal integrity. Set the recommended gap to 1.0 mm (40 mils) for optimal linear range performance.
Maintenance & Reliability
Routine inspection of the probe tip and cable is essential. Check for chemical or physical damage, especially in process compressor environments. The PPS tip and SST case resist corrosion, but verify that the Viton O-ring seal remains intact to maintain pressure integrity. Regularly confirm that the cable bend radius stays above 25.4 mm to avoid fatigue. These simple practices extend service life and minimize unplanned downtime.
Compatibility & Integration
The 330904-00-15-05-12-05 is fully compatible with Bently Nevada 3300 XL NSv Proximitor Sensors and existing 3300 RAM systems. The probe and extension cable are mechanically and electrically interchangeable with previous models, allowing seamless upgrades. Use the recommended three-conductor shielded triad cable for field wiring to maintain signal quality over long distances.
Selection Guide
When ordering, verify the unthreaded length (00 mm), overall case length (150 mm), total length (0.5 meter), connector type (miniature coaxial ClickLoc, FluidLoc cable), and agency approvals (multiple). This configuration is new and original in factory packing, backed by a 12-month warranty. For bulk or custom needs, PLC Source PRO ensures reliable sourcing and prompt delivery.