The Bently Nevada 330101-00-76-05-01-00 belongs to the trusted 3300 XL series, which is widely recognized for precision proximity measurement. This particular model provides a non-contact solution for radial vibration and position monitoring. Its 8 mm diameter tip offers thicker PPS encapsulation, making the sensor more durable against physical stress. Additionally, the probe incorporates patented TipLoc and CableLoc technologies, ensuring a secure mechanical bond and high pull-strength rating. You can rely on this probe for consistent output in demanding rotating machinery applications.
Electrical Characteristics
The 330101-00-76-05-01-00 probe delivers a nominal DC resistance of 7.45 ± 0.50 Ω from the center to the outer conductor. Its extension cable capacitance is typically 69.9 pF/m (21.3 pF/ft). For field wiring, we recommend using a 3-conductor shielded triad cable with tinned conductors, sized from 0.2 to 1.5 mm² (16 to 24 AWG). Moreover, the maximum allowable field wiring length between the Proximitor sensor and the monitor is 305 meters (1,000 feet).
Linear Range and Scale Factor
This sensor covers a linear range of 2 mm (80 mils), starting from approximately 0.25 mm (10 mils) off the target. The recommended gap setting for radial vibration measurement is -9 Vdc, which corresponds to roughly 1.27 mm (50 mils). For the standard 5-meter or 1-meter system, the Incremental Scale Factor (ISF) is 7.87 V/mm (200 mV/mil) ± 5% over the 80 mil range from 0°C to +45°C. Meanwhile, the 9-meter system offers the same scale factor but with a ±6.5% interchangeability error. Furthermore, the Deviation from Best Fit Straight Line (DSL) stays within ±0.025 mm (±1 mil) for shorter systems and ±0.038 mm (±1.5 mil) for the 9-meter configuration under the same temperature conditions.
Material and Construction
The probe tip uses Polyphenylene Sulfide (PPS), which provides excellent chemical resistance and dimensional stability. Its case is machined from AISI 303 or 304 stainless steel, offering good corrosion protection and mechanical strength. The cable weighs approximately 323 g/m (11.4 oz/ft), and the entire assembly feels solid and well-balanced during installation.
Temperature Ranges
For the standard version, the operating and storage temperature spans from -52°C to +177°C (-62°F to +350°F). If you choose the extended temperature range option, the probe tip can withstand up to +218°C (+425°F), while the cable and connector handle up to +260°C (+500°F). However, please avoid exposing the probe to temperatures below -34°C (-30°F), as this may damage the pressure seal prematurely.
Pressure and Humidity Tolerance
The 330101-00-76-05-01-00 uses a Viton O-ring to seal differential pressure between the tip and the case. Although we do not pressure-test each unit before shipping, you can contact our custom design team for special testing requirements. Regarding humidity, the Average Scale Factor (ASF) changes by less than 3% after 56 days of exposure to 93% relative humidity, following IEC standard 68-2-3.
Thread and Torque Specifications
The probe case features a 3/8-24 UNF thread with a maximum engagement length of 0.563 inches. For standard forward-mounted probes, the maximum rated torque is 33.9 N•m (300 in•lbf), while the recommended value is 11.2 N•m (100 in•lbf). For the first three threads only, the maximum drops to 22.6 N•m (200 in•lbf) and the recommended torque becomes 7.5 N•m (66 in•lbf). Following these torque guidelines helps prevent thread damage and ensures reliable mounting.
Temperature Classification for Hazardous Areas
For EPL Ga and Gc environments, the 330101-00-76-05-01-00 offers multiple temperature classifications: T1 from -55°C to +232°C, T2 from -55°C to +177°C, T3 from -55°C to +120°C, T4 from -55°C to +80°C, and T5 from -55°C to +40°C. For EPL Dc installations, the classifications include T280°C at +232°C ambient, T225°C at +177°C ambient, T170°C at +120°C ambient, T130°C at +80°C ambient, T105°C at +100°C ambient, and T90°C at +40°C ambient. These ratings help you select the right probe for your specific hazardous area requirements.
Before installing the Bently Nevada 330101-00-76-05-01-00, always inspect the probe tip and cable for any visible damage. Clean the mounting surface and apply anti-seize compound to the threads if required by your application. When tightening, use a calibrated torque wrench and follow the recommended values provided above. Also, ensure the target area is free of oil, dirt, or other contaminants that could affect the gap measurement. After installation, verify the output voltage at the recommended gap setting of -9 Vdc. Finally, route the cable carefully to avoid sharp bends or excessive tension, and secure it with appropriate clamps.
1 x Bently Nevada 330101-00-76-05-01-00 probe assembly (with 0.5m cable and ClickLoc connector)
1 x Connector protector
1 x Installation instruction sheet
Q1: What is the difference between the standard and extended temperature range probes?
The standard 330101-00-76-05-01-00 operates up to +177°C, while the extended version allows the probe tip to reach +218°C. The cable and connector also tolerate higher temperatures in the extended option.
Q2: Can I use this probe with a 9-meter extension cable system?
Yes, the 330101-00-76-05-01-00 works with 9-meter systems. However, note that the ISF interchangeability error increases to ±6.5% compared to ±5% for 5-meter or 1-meter systems.
Q3: How do I set the correct gap for radial vibration monitoring?
Adjust the probe mounting position until the output voltage reads -9 Vdc, which corresponds to approximately 1.27 mm (50 mils) from the target surface.
Q4: Is the probe compatible with hazardous area installations?
The 330101-00-76-05-01-00 carries temperature classifications for EPL Ga, Gc, and Dc environments. Please refer to the temperature schedule in the datasheet for specific ambient limits per T-class.
Q5: What should I do if the probe seal fails under pressure?
Although the probe uses a Viton O-ring for sealing, we do not perform factory pressure tests. For critical applications, contact our custom design department to arrange a pressure seal test prior to installation.
| Brand Name | |
| Model No. | 330101-00-76-05-01-00 |
| Product Type | Probe |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
