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The Bently Nevada 330103-12-20-50-02-00 is an 8 mm proximity probe designed for precise and reliable measurement of vibration and position in industrial machinery. As part of the trusted 3300 XL series, this probe is engineered to deliver accurate displacement signals and high durability in demanding environments such as turbines, compressors, pumps, and motors.
This model comes with a total system length of 5.0 meters, making it suitable for a variety of installation scenarios. It supports metric measurements, and its robust construction ensures stable performance in high-temperature and high-vibration conditions. This probe is fully compatible with Bently Nevada’s Proximitor sensor systems.
| Parameter | Value |
|---|---|
| Model Number | 330103-12-20-50-02-00 |
| Probe Type | Proximity Probe (8 mm Tip) |
| Tip Diameter | 8 mm |
| Thread Size | M10 x 1 |
| System Length | 5.0 meters (probe + extension + cable) |
| Connector Type | Miniature coaxial connector |
| Material | Stainless steel |
| Sensing Range | Up to 2 mm (typical) |
| Temperature Range | -35°C to +177°C |
| Frequency Response | DC to 10 kHz |
| Weight | 1.615 kg |
| Series | 3300 XL Series |
| Measurement Standard | Metric |
| Compatible Transducer System | 3300 XL Proximitor Sensor Systems |
The 330103-12-20-50-02-00 proximity probe offers exceptional performance in critical condition monitoring applications. It is engineered with Bently Nevada’s industry-leading XL technology, which improves probe durability, cable handling, and temperature tolerance. This 8 mm probe uses eddy current sensing to measure the distance between the probe tip and a conductive surface, usually a rotating shaft.
It features a robust stainless steel casing and sealed construction that prevent contamination from oil, dirt, and moisture. The probe connects to an extension cable and a proximitor sensor, forming a complete non-contact displacement measurement system.
Vibration and position monitoring in rotating machinery
Shaft displacement measurements in gas and steam turbines
Radial and axial vibration detection in compressors and fans
Thrust position measurement in large electric motors
Condition monitoring in pumps and gearboxes
Proven performance and reliability under harsh industrial conditions
High temperature and chemical resistance
Easy installation and interchangeability within the 3300 XL system
Precision alignment and robust signal integrity
Long service life and reduced maintenance requirements
Bently Nevada – A trusted name in machinery protection and condition monitoring.
3300 XL Series – Known for its rugged design, extended temperature ranges, and superior electrical shielding, ensuring accurate and reliable readings even in extreme environments.
| Model | Description | System Length | Weight |
|---|---|---|---|
| 330103-00-05-10-02-00 | 8 mm probe, standard length, metric thread | 1.0 meter | 1.2 kg |
| 330103-00-10-10-02-00 | 8 mm probe, extended cable, metric thread | 2.0 meters | 1.3 kg |
| 330103-00-15-10-02-00 | 8 mm probe, longer system length, metric thread | 3.0 meters | 1.4 kg |
| 330103-00-25-10-02-00 | 8 mm probe, long cable for distant mounting | 6.0 meters | 1.7 kg |
| 330103-00-30-10-02-00 | 8 mm probe, extra-long for remote sensing | 9.0 meters | 1.8 kg |
| Model | Description | System Length | Weight |
|---|---|---|---|
| 330104-00-05-10-01-00 | 5 mm proximity probe, standard US system | 1.0 meter | 1.1 kg |
| 330105-02-12-10-02-00 | 11 mm proximity probe, metric thread | 2.0 meters | 1.4 kg |
| 330130-045-00-00 | Extension cable for proximity probes | 4.5 meters | 0.9 kg |
| 330180-91-05 | Proximitor Sensor, 3300 XL Series, DIN Mount | – | 0.6 kg |
| 330980-50-00 | High-temperature probe for turbine environments | 5.0 meters | 1.6 kg |
Q1: What does the 330103-12-20-50-02-00 probe measure?
A1: It measures the distance (displacement) between the probe tip and a conductive target surface, typically a rotating shaft.
Q2: What is the standard sensing range of this proximity probe?
A2: It typically senses up to 2 mm of shaft movement using eddy current principles.
Q3: Can I use this probe with a different proximitor module?
A3: It is specifically designed for use with the 3300 XL Proximitor Sensor. Other modules may not provide accurate readings.
Q4: Is this probe suitable for high-temperature applications?
A4: Yes, it operates reliably in environments up to +177°C.
Q5: What type of environments is this probe suitable for?
A5: It performs well in oily, dusty, high-vibration, and high-temperature environments.
Q6: What is the thread type of this probe?
A6: It features a metric thread: M10 x 1.
Q7: Is the cable length included in the system length?
A7: Yes, the total system length of 5.0 meters includes the probe, extension cable, and proximitor cable.
Q8: What kind of connector does it use?
A8: It uses a miniature coaxial connector compatible with Bently Nevada systems.
Q9: How is the probe installed?
A9: It is typically mounted through a threaded hole in the bearing housing, facing the rotating shaft surface.
Q10: Can the probe be replaced independently?
A10: Yes, the probe, extension cable, and Proximitor sensor are all modular and can be replaced separately.
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.