Description
The 330100-90-00 is a 3300 XL 8mm Proximity Probe belonging to Bently Nevada’s 3300 XL series. This series is the industry standard for eddy current proximity transducer systems, used primarily for measuring vibration, position, and speed on rotating machinery. The specific configuration of this part number defines its cable length, armor options, and agency approvals.
BENTLY 330100-90-00
Product Technical Description
The probe works on the eddy current principle. When the probe tip is energized by a Proximitor Sensor, it generates a magnetic field. As a conductive target (like a machine shaft) moves relative to the tip, the magnetic field is disturbed. The Proximitor converts this change into a proportional voltage signal.
- System Compatibility: Designed for use with a 3300 XL Proximitor Sensor and Extension Cable.
- Measurement Range: Provides a linear range of 2 mm (80 mils).
- Interchangeability: The 3300 XL series allows for the interchange of probes and cables without the need for individual calibration.
- Durability: The probe tip is made of a high-performance Ryton® plastic, designed to withstand harsh industrial environments.
Product Datasheet (Parameters)
| Parameter | Specification |
| Model Number | 330100-90-00 |
| Probe Diameter | 8 mm |
| Thread Size | 3/8-24 UNF (Standard) |
| Unthreaded Length | 90 mm |
| Overall Case Length | 90 mm |
| Total Length | 0.5 meter (1.6 feet) |
| Connector Type | Miniature coaxial ClickLoc™ connector |
| Linear Range | 2.0 mm (80 mils) |
| Operating Temperature | -52 °C to +177 °C (-62 °F to +351 °F) |
| Pressure Rating | Up to 70 psi (4.8 bar) |
| Country of Origin | USA |
Technical Characteristics
- Linearity: Maintains high accuracy across the full 80 mil range, typically used for radial vibration and axial thrust measurements.
- Material: 304 stainless steel probe case with Ryton® tip.
- Coaxial Cable: Gold-plated brass connectors with Fluorinated Ethylene Propylene (FEP) insulation.
- Mounting: Case-mounted configuration typically used in bracket-mount or through-casing applications.
Common Questions & Answers (Q&A)
Q: Can I use this probe with a non-XL Proximitor?
A: While physically possible, it is not recommended. The 3300 XL probes are specifically calibrated to work with 3300 XL Proximitors to maintain the stated linear range and scale factor (200 mV/mil).
Q: What does the “0.5 meter” length signify?
A: This is the length of the probe’s integral cable. In most installations, this probe must be connected to a 4.0m or 8.5m extension cable to reach the Proximitor, forming a 5m or 9m total system.
Q: Is the 330100-90-00 moisture resistant?
A: Yes, the ClickLoc™ connectors are designed to be moisture-resistant, but for high-humidity or submerged applications, the use of connector protectors or silicone tape is recommended.
Q: Can this probe measure non-ferrous materials?
A: The standard calibration is for 4140 steel. Measuring other materials (like aluminum or stainless steel) will result in a different scale factor and reduced linearity unless the Proximitor is specifically calibrated for that material.
Similar Model Recommendations (8 Units)
- 330100-50-00: Same probe but with a 50mm unthreaded/case length.
- 330101-00-08-00: 3300 XL 8mm Probe with Metric M10 x 1 threads.
- 330100-90-05: 330100 series with multiple agency approvals (ATEX/IECEx).
- 330105-02-12-00: 3300 XL 8mm Reverse Mount Probe (used for internal mounting).
- 330103-00-05-10-02-00: 3300 XL 8mm probe with 1.0-meter integral cable.
- 330180-50-00: 3300 XL Proximitor Sensor (5-meter system), required to complete the loop.
- 330130-040-00-00: 3300 XL Extension Cable (4.0 meters), compatible with this probe.
- 330701-00-10-10-02-00: 3300 XL 11mm Proximity Probe (larger diameter for wider linear range).
