The 330380-90-00 is an advanced 3300 XL 16mm High Temperature Proximitor Sensor engineered to support a 9-meter overall transducer loop length with standard panel mounting. Fully compatible with high-temperature proximity probes, this advanced module works seamlessly with industrial monitoring racks to deliver a stable 3.94 V/mm (100 mV/mil) signal output and accurate dynamic tracking in extreme heat environments without losing linear performance.
Technical Data Summary
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Engineered for high-temperature operation in gas and steam turbine environments where standard probes cannot survive.
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Provides reliable measurement capability in extreme thermal zones within rotating machinery.
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Supports monitoring of vibration, thrust position, and differential expansion in critical turbine components.
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Applicable in installations near seals, bearing housings, and internal turbine hot sections.
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Designed for use where probe cabling must pass through structural supports or exhaust routing paths.
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Ideal for advanced diagnostics such as seal clearance assessment, bearing condition monitoring, and mid-span mode shape analysis.
Specific Application
- Signal conditioning for vibration, thrust position, and differential expansion monitoring inside high-temperature zones of gas and steam turbines.
- Mid-span mode shape analysis and interstage radial or axial seal clearance tracking on multi-stage steam turbines to minimize rotor-to-stator rubs.
- Machinery protection tracking near hot bearing locations, labyrinth seals, and gas turbine exhaust paths that can destroy conventional proximity systems.
System Compatibility, Alternative Models, and Differences
- System Compatibility:
Fully compatible with Bently Nevada 3300 XL HTPS 16mm proximity probes (such as 330301, 330302, and 330303) and matched 330330 extension cables. It provides an optimized 3.94 V/mm (100 mV/mil) analog signal directly to 3500 series machinery protection systems or online diagnostic monitors. - Alternative Model (DIN Rail Mount Variant):
330380-91-00 (3300 XL 16mm HTPS Proximitor Sensor, DIN Mount) - Key Differences between 330380-90-00 (Panel Mount) and 330380-91-00 (DIN Mount):
Mechanical Mounting Base: The 330380-90-00 utilizes an integrated flat aluminum base designed for direct bolt-down surface installation onto structural plates or enclosures, whereas the 330380-91-00 includes a specialized integrated clip mechanism for snapping directly onto standard 35mm DIN rails.
Installation Footprint: The panel mount variant requires a slightly wider, flat clear surface area for fastener access, while the DIN-rail version optimizes cabinet density by allowing tight horizontal clustering on hardware tracks.
Ordering Information
|
Part Number Option |
Selected Code |
Option Meaning & Technical Specification |
|
Product Model |
330380 |
3300 XL 16mm High Temperature Proximitor Sensor |
|
A: Total Length and Mounting Option |
90 |
9-meter overall system length, Panel Mount configuration |
|
B: Agency Approval Option |
00 |
No hazardous area agency approvals required |
FAQ
Q1: What is 330380-90-00 used for?
A1: It is used for high-temperature proximity measurements in gas and steam turbines.
Q2: Can it operate in extreme heat environments?
A2: Yes, it is designed to withstand the high temperatures found inside rotating machinery.
Q3: What parameters can it help monitor?
A3: It supports monitoring of vibration, thrust position, and differential expansion.
Q4: Where is it typically installed?
A4: It is commonly installed near seals, bearing housings, exhaust paths, and other hot turbine zones.
Q5: Is it suitable for turbine diagnostics?
A5: Yes, it is used in applications like seal clearance measurement, bearing monitoring, and mode shape analysis.
Accessories
| 125M6030 3300 XL 16mm High Temperature Proximity System User Guide | 3300 XL 16mm High Temperature Proximity System User Guide |
| 159132 | Performance Specification |
| 134835-01 | Mounting bracket for 330303 smooth case probe (spare). |







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