Product Overview
The Bently Nevada 330101-12-40-10-02-CN is a 3300 XL 8 mm Probe designed for precise vibration and displacement monitoring in critical rotating machinery. With a 3/8-24 UNF thread and no armor, this probe delivers reliable performance in demanding industrial environments. The 330101-12-40-10-02-CN features a total length of 1.0 meter (3.3 feet), an unthreaded length of 1.2 inches, and an overall case length of 4.0 inches. It includes a miniature coaxial ClickLoc connector with standard cable, ensuring secure and straightforward installation.
Key Features
-
Patented TipLoc molding for a robust bond between probe tip and body.
-
Patented CableLoc design provides 330 N (75 lbf) pull strength.
-
Optional FluidLoc cable option prevents oil or liquid leakage through the cable interior.
-
Thicker PPS encapsulation in the probe tip for enhanced ruggedness.
-
Stainless steel case (AISI 303 or 304) for durability.
-
Operating temperature range from -52°C to +177°C (standard probe).
Technical Specifications
| Parameter |
Value |
| Probe Type |
3300 XL 8 mm, 3/8-24 UNF thread, without armor |
| Unthreaded Length |
1.2 in |
| Overall Case Length |
4.0 in |
| Total Length |
1.0 meter (3.3 feet) |
| Connector |
Miniature coaxial ClickLoc, standard cable |
| Nominal Probe DC Resistance (1.0 m) |
7.59 ± 0.50 Ω |
| Extension Cable Capacitance |
69.9 pF/m (21.3 pF/ft) typical |
| Linear Range |
2 mm (80 mils) from 0.25 to 2.3 mm (10 to 90 mils) |
| Recommended Gap Setting |
-9 Vdc (approximately 1.27 mm / 50 mils) |
| Incremental Scale Factor (ISF) – Standard 5 or 1 meter system |
7.87 V/mm (200 mV/mil) ±5% |
| Deviation from Best Fit Straight Line (DSL) – Standard 5 or 1 meter system |
Less than ±0.025 mm (±1 mil) |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 303 or 304 stainless steel |
| Probe Weight |
323 g/m (11.4 oz) |
| Operating/Storage Temperature (Standard) |
-52°C to +177°C (-62°F to +350°F) |
| Probe Relative Humidity |
<3% change in ASF at 93% humidity per IEC 68-2-3 |
Applications
The Bently Nevada 330101-12-40-10-02-CN is ideal for monitoring radial vibration and shaft displacement in turbomachinery, compressors, pumps, and motors. Its robust design and high accuracy make it suitable for predictive maintenance programs. In a typical application, the probe is mounted through a machine casing to measure shaft vibration relative to the bearing housing, enabling early detection of issues like unbalance, misalignment, or bearing wear. The 330101-12-40-10-02-CN delivers reliable data for condition monitoring systems, helping reduce unplanned downtime.
Installation & Setup
For optimal performance, mount the probe with the recommended gap setting of -9 Vdc, corresponding to approximately 1.27 mm (50 mils) from the target. Ensure the probe tip is clean and free from debris. Use the specified field wiring: 0.2 to 1.5 mm² (16 to 24 AWG), preferably a 3-conductor shielded triad cable with tinned conductors. Maintain a maximum cable length of 305 meters (1,000 feet) between the Proximitor Sensor and the monitor to avoid signal degradation. Secure the connector using the ClickLoc mechanism to prevent loosening.
Maintenance & Reliability
The 330101-12-40-10-02-CN is designed for long-term reliability. Its stainless steel case and PPS tip resist harsh environments. Regularly inspect the probe cable and connector for wear or damage. The patented CableLoc design provides 330 N (75 lbf) pull strength, reducing the risk of cable detachment. If the probe is exposed to temperatures below -34°C (-30°F), the pressure seal may fail prematurely, so avoid such conditions. For applications with high humidity, the probe maintains stable performance with less than 3% change in Average Scale Factor.
Selection Guide
When ordering the Bently Nevada 330101-12-40-10-02-CN, verify the thread type (3/8-24 UNF) and the absence of armor to match your installation requirements. Confirm the total length and connector type (miniature coaxial ClickLoc) fit your system. Ensure the probe's temperature range aligns with your operating environment. For assistance with compatibility or to place an order, contact PLC Source PRO, your trusted supplier of industrial automation parts.