The 330103-00-03-05-02-05 is a precision proximity probe from Bently Nevada, a key member of the 3301 series—a line renowned for setting standards in non-contacting machinery condition monitoring. Its core function is to measure shaft displacement, vibration, and position in rotating equipment, delivering real-time data that is critical for assessing the health of turbines, compressors, and pumps. As a non-contacting sensor, it operates without physical contact with the target shaft, eliminating wear and ensuring long-term reliability.
Integral to industrial automation setups, the 330103-00-03-05-02-05 works alongside Bently’s 3500 series monitoring modules (such as the 3500/42M) to translate mechanical movements into electrical signals, enabling early detection of issues like misalignment, bearing degradation, or rotor imbalance. What makes the 330103-00-03-05-02-05 valuable is its precision: even minute displacements (measured in microns) are captured accurately, providing operators with actionable insights to prevent unplanned downtime. Its robust design ensures consistent performance in harsh industrial environments, solidifying its role as a trusted component in critical machinery monitoring.
| Parameter |
Value |
| Product Model |
330103-00-03-05-02-05 |
| Manufacturer |
BENTLY |
| Product Type |
Non-Contacting Proximity Probe |
| Measurement Range |
0–3 mm (0–0.118 inches) |
| Probe Tip Material |
316 Stainless Steel |
| Cable Length |
5 meters (16.4 feet) |
| Connector Type |
Microdot (male) |
| Operating Temperature |
-30°C to +121°C (-22°F to +250°F) |
| Frequency Response |
0–10 kHz |
| Housing Material |
Nickel-plated brass |
| Output Signal |
AC voltage proportional to displacement |
| Compatibility |
BENTLY 3500, 3300, and 990 Monitoring Systems |
| Shielding |
Twisted pair with stainless steel braid |
The 330103-00-03-05-02-05 stands out for its non-contacting design, which eliminates wear and tear—critical for long-term reliability in high-speed rotating equipment like gas turbines or centrifugal compressors. Unlike contact-based sensors, it measures shaft displacement without physical interaction, ensuring consistent accuracy over time.
Its 316 stainless steel probe tip offers exceptional corrosion resistance, making it suitable for harsh environments such as offshore platforms or chemical plants where exposure to moisture, salts, or chemicals is common. The 5-meter shielded cable minimizes electromagnetic interference (EMI), preserving signal integrity even near high-voltage equipment—a key advantage in power generation facilities.
With a 0–3 mm measurement range, the 330103-00-03-05-02-05 is optimized for smaller shafts or applications requiring precise detection of subtle movements, such as in precision pumps or agitators. It integrates seamlessly with Bently’s 3500 monitoring modules, ensuring plug-and-play functionality that reduces setup time and minimizes compatibility issues. This combination of precision, durability, and integration makes it a trusted tool for maintaining machinery health.
The 330103-00-03-05-02-05 is widely deployed in industries where precise shaft displacement monitoring is critical to operational safety and efficiency. In power generation, it is installed on steam turbine shafts to measure axial and radial movement, helping operators detect early signs of rotor rub or bearing degradation—issues that could lead to catastrophic failures if unaddressed. Its ability to operate at high temperatures (-30°C to +121°C) makes it ideal for turbine environments.
In oil and gas refineries, the 330103-00-03-05-02-05 monitors centrifugal pump shafts, tracking displacement to identify misalignment caused by thermal expansion or mechanical stress. This ensures pumps operate within safe parameters, preventing leaks in hazardous fluid handling systems.
Chemical processing plants rely on the probe to monitor agitator shafts in reactor vessels, where even minor displacement can indicate gearbox wear or seal degradation—critical for preventing contamination or production delays. Its corrosion-resistant design ensures reliable performance in these chemically aggressive environments.
330103-00-03-05-02-02 – Shorter 2-meter cable variant of the
330103-00-03-05-02-05, ideal for compact machinery setups.
330103-00-05-05-02-05 – 5 mm measurement range model, offering a broader displacement range than the
330103-00-03-05-02-05 for larger shafts.
330103-00-03-10-02-05 – 10-meter cable version, providing extended reach for remote monitoring setups.
330101-00-08-20-12-05 – Companion 8 mm range probe, often used alongside the
330103-00-03-05-02-05 for multi-point shaft monitoring.
330130-045-00-00 – BENTLY transducer that conditions signals from the
330103-00-03-05-02-05 for 3500 systems.
330103-00-03-05-02-06 – High-temperature variant of the
330103-00-03-05-02-05, rated up to 150°C for extreme heat applications.
Installing the 330103-00-03-05-02-05 requires precise alignment with the target shaft—typically within 0.5 mm of concentricity—to ensure accurate measurements. The probe should be mounted in a rigid bracket to avoid vibration-induced errors, and the cable must be routed away from high-voltage lines to prevent EMI. Proper grounding of the shielded cable is essential; follow BENTLY guidelines to connect the shield to the system ground at the transducer end.
For maintenance, inspect the 330103-00-03-05-02-05 quarterly for physical damage to the probe tip or cable insulation. Clean the tip with a soft, dry cloth to remove debris, which can skew measurements. Calibration checks every 12–18 months are recommended to verify accuracy, especially in high-vibration environments. Replace the probe if signal drift is detected; typical service life is 5–7 years under normal operating conditions.
The 330103-00-03-05-02-05 is backed by a one-year warranty from Xiamen Xiongba E-commerce Co., Ltd., covering defects in materials and workmanship under normal use. During this period, we provide free replacement for qualifying issues, reflecting our confidence in the product’s quality. With over a decade of experience in industrial automation, our global support team offers timely technical assistance for installation or troubleshooting. Sourced directly from BENTLY, the 330103-00-03-05-02-05 meets rigorous standards, ensuring reliable performance in your machinery monitoring system.
Xiamen Xiongba E-commerce Co., Ltd. specializes in the field of industrial automation, focusing on the sales of Distributed Control Systems (DCS), robot systems, and modules and spare parts for large-scale servo control systems. Our business covers a wide range of industrial automation products, including PLCs, MOTOROLA MVME industrial modules, Anybus communication converters, RTU remote modules, industrial PCs, low-frequency industrial displays, and SCSI human-machine interfaces. With over a decade of industry experience, Xiongba has grown into a global supplier of industrial automation spare parts. We source directly from overseas, offering products and parts from multiple countries and manufacturers. This helps solve customers' procurement challenges, ensures product quality, and provides a significant price advantage. We offer a one-year warranty and free replacement service.
