Bently Nevada 330101-00-08-20-12-05

Product Introduction

The Bently Nevada 330101-00-08-20-12-05 is a high-performance proximity probe used in vibration and position monitoring systems, forming a part of the renowned 3300 XL Proximitor® System developed by Bently Nevada, a GE brand. This system is known for its reliable condition monitoring of rotating machinery, ensuring plant safety and asset longevity.

This specific model—330101-00-08-20-12-05—includes a proximity probe with a 0.8-meter (approximately 2.62 feet) probe cable, a 2-meter extension cable, and a 5-meter system length. It is engineered to comply with rigorous industrial standards, offering exceptional durability and signal integrity even under extreme environmental conditions.

The probe operates with Bently Nevada’s Proximitor® sensors to detect shaft position and vibration relative to the probe tip, enabling accurate diagnostics and predictive maintenance for rotating machinery such as turbines, compressors, motors, and pumps.

Product Advantages

• Superior Signal Integrity: Engineered with enhanced shielding to minimize signal degradation and interference in high-noise environments.

• Rugged Industrial Design: Withstands harsh environments with high resistance to mechanical stress, moisture, oil, and chemical exposure.

• Consistent Performance: Provides stable and repeatable measurements over long operating periods, reducing the need for recalibration.

• Modular System Compatibility: Fully compatible with 3300 XL Proximitor® systems, allowing seamless integration and upgrades.

• Non-Contact Measurement: Provides precise vibration and displacement readings without physical contact, preventing equipment wear.

• Long-Term Cost Savings: Reduces unplanned downtime and maintenance costs through early fault detection.

Technical Specifications

Applications

The Bently Nevada 330101-00-08-20-12-05 proximity probe system is used in a wide range of industrial applications where continuous machinery health monitoring is critical. Common applications include:

• Steam and gas turbines

• Industrial compressors

• Large electric motors and generators

• Gearboxes and couplings

• Centrifugal and axial flow pumps

• Blowers and fans in refineries and petrochemical plants

• Paper mills, steel mills, and mining machinery

This model is especially suitable for detecting shaft vibration, axial thrust, and differential expansion in high-value rotating assets.

Compatible Models

This probe is designed for use with the following models within the 3300 XL system:

• 3300 XL Proximitor Sensor (part number 330180)

• 3300 XL Extension Cable (matching length specifications)

• 3500 Series Monitoring Systems (such as 3500/42M and 3500/22M)

• 330104 series probes (alternative sizes)

• 330130 series extension cables (interchangeable length)

• 330400 and 330425 Dual Vibration/Position Monitors

All components must match the system length to ensure calibrated output.

Installation Instructions

1. Mounting the Probe:
   Thread the probe into the mounting location using the 3/8-24 UNF thread. Torque according to specifications (typically 5–7 N·m). Ensure that the probe is perpendicular to the shaft surface.

2. Gap Adjustment:
   Using a dial gauge or signal tester, adjust the gap voltage to the appropriate value (typically -10 VDC). This ensures the probe is within the linear range for accurate measurement.

3. Cable Routing:
   Secure the extension cable away from sources of EMI. Avoid sharp bends and keep cable radius ≥25 mm. Use grounding clamps if required by system grounding practices.

4. Connect to Proximitor®:
   Plug the probe and extension cable into the 3300 XL Proximitor sensor. Ensure tight coaxial connections to avoid signal loss.

5. Final Checks:
   Verify signal response using a signal checker or oscilloscope. Check for proper grounding, power input, and system integration.

6. Environmental Sealing:
   Use appropriate conduit fittings or enclosures if installed in hazardous or outdoor environments.

6 Related Models (Same Series)

8 Popular Bently Nevada Models

Product FAQ (Q&A Format)

Q1: What is the primary use of the 330101-00-08-20-12-05 proximity probe?
A1: It is used for measuring the vibration and position of rotating machinery shafts to monitor machine condition and prevent mechanical failure.

Q2: Can this probe be used with the 3500/42M module?
A2: Yes, this probe is fully compatible with the 3500/42M Proximitor Monitor as long as the system cable lengths match the calibration of the Proximitor sensor.

Q3: Is the probe suitable for hazardous environments?
A3: While the probe itself is not intrinsically safe, it can be used in hazardous areas when installed inside certified enclosures or in combination with intrinsic safety barriers.

Q4: How do I determine the correct gap voltage during installation?
A4: The recommended gap voltage is approximately -10 VDC. You can adjust the gap using a signal checker or voltmeter to bring the reading to the correct value.

Q5: Can I cut or shorten the extension cable?
A5: No, modifying the cable length will alter the system calibration and lead to inaccurate measurements. Use only pre-calibrated components with matching system length.

Q6: What is the expected service life of the probe?
A6: When installed properly in industrial environments, the probe typically has a service life of 5–10 years, though this can vary based on operating conditions.