Description
Overview
The Bently Nevada 330710‑000‑050‑02‑00 probe is part of the 3300 XL 11 mm proximity transducer family, designed for applications requiring extended linear range and robust mechanical construction. This model supports high‑accuracy displacement and vibration measurements in heavy‑duty rotating machinery, particularly where larger probe tip diameters are preferred for improved signal stability.
Key Characteristics
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Model: 330710‑000‑050‑02‑00
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Probe Type: 11 mm proximity probe
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System Compatibility: 3300 XL Proximity Transducer System
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Thread Specification: M14 × 1.5 (corrected for 11 mm series)
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Cable Length: 5 m standard
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Connector: Miniature coaxial ClickLoc
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Mounting Options: DIN‑rail or panel‑mount compatible
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Electrical Isolation: Integrated isolated mounting base
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Weight: 0.25 kg
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Dimensions: 20.5 × 22.5 × 3.5 cm
Functional Description
The 330710‑000‑050‑02‑00 probe is engineered for machinery protection systems that demand high linearity and stable performance across wide temperature and electromagnetic ranges. Its 11 mm tip diameter provides a larger sensing footprint, improving measurement reliability in applications with significant shaft runout or surface irregularities.
The probe assembly incorporates a fully isolated mounting base, eliminating the need for external insulating plates. This reduces installation time and ensures consistent grounding practices across multi‑channel systems.
Enhanced RFI/EMI immunity allows the probe to meet CE requirements without metallic conduit or shielded enclosures. This makes it suitable for installations in fiberglass housings or compact monitoring panels.
The 5‑meter armored cable, terminated with a ClickLoc connector, provides secure attachment to extension cables and Proximitor sensors. SpringLoc terminal strips support fast wiring without specialized tools, improving serviceability in field environments.
Technical Specifications
Mechanical
| Parameter |
Value |
| Probe Tip Diameter |
11 mm |
| Thread Type |
M14 × 1.5 |
| Cable Length |
5 m |
| Cable Type |
Armored coaxial |
| Connector |
Miniature ClickLoc |
| Mounting Base |
Electrically isolated |
| Weight |
0.25 kg |
| Shipping Dimensions |
20.5 × 22.5 × 3.5 cm |
Electrical
| Parameter |
Value |
| Sensitivity |
7.87 V/mm (200 mV/mil) typical |
| Linear Range |
4 mm (160 mil) typical for 11 mm series |
| Frequency Response |
DC to 10 kHz |
| System Compatibility |
3300 XL Proximitor sensors |
| Grounding |
Single‑point shield grounding recommended |
Environmental
| Parameter |
Value |
| Operating Temperature |
–35°C to +177°C (probe only) |
| Humidity |
95% non‑condensing |
| Certifications |
CSA, ATEX, IECEx |
| RFI/EMI Immunity |
CE‑compliant without shielded conduit |
Applications
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Large steam and gas turbines
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High‑power compressors
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Industrial generators
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Gearboxes and heavy rotating equipment
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API 670‑compliant protection systems
FAQ
Q: Does the 11 mm probe require a different Proximitor than the 8 mm series? A: Yes. The 11 mm probe must be paired with the corresponding 3300 XL 11 mm Proximitor to maintain calibration accuracy.
Q: Can this probe be mounted in non‑metallic housings? A: Yes. Its RFI/EMI immunity meets CE requirements without metallic conduit.
Q: Is the mounting base already isolated? A: Correct. No additional isolation hardware is required.
