Product: 330173-00-06-10-12-00
Category: High-Temperature Proximity Transducer System (11mm Diameter, Extended Length) for Severe-Service Vibration Monitoring
Overview:
The 330173-00-06-10-12-00 is a specialized, heavy-duty 11mm diameter proximity transducer system from the Bently Nevada 3300 XL series, engineered for the most demanding, high-temperature applications. This configuration is defined by an extended probe tip length and a high-temperature cable assembly. The suffix indicates a system with a 6-meter (≈19.7 ft) integral probe cable (-06-) and a 10-meter (≈32.8 ft) extension cable (-10-), resulting in a 16-meter (52.5 ft) total system length. The -12- suffix specifies the high-temperature component group, making this transducer suitable for installations with extreme ambient heat near the mounting point.
Key Parameters & Specifications
| Parameter | Specification / Description |
|---|---|
| System Function | High-Temperature Eddy-Current Proximity Transducer for Vibration/Position. |
| Probe Diameter | 11 mm (0.433 in) – The heavy-duty standard for critical machinery. |
| Probe Tip Length | Extended Length (likely 100mm / 4.0 in or greater, as indicated by the 330173 base number). This extra length is crucial for reaching through hot casing insulation or spacers. |
| Total System Length | 16 meters (52.5 feet). Comprised of a 6m integral cable + a 10m extension cable. |
| Linear Range | Standard: 0.25 to 2.3 mm (10 to 90 mils) from the probe tip. |
| Scale Factor | 7.87 V/mm (200 mV/mil) for standard carbon steel targets (AISI 4140). |
| Frequency Response | 0 to 10 kHz. |
| Output Signal | -1 to -17 Vdc linear analog signal proportional to gap. Requires a compatible proximitor. |
| Target Material | Ferrous Steel (standard). Requires different calibration for stainless steel. |
| Temperature Rating (Key Feature) | High-Temperature Design (-12-): Probe, cable, and connectors rated for continuous ambient temperatures up to and exceeding 260°C (500°F). Designed to withstand direct heat radiation and soak. |
| Connectors | High-temperature rated MIL-C-5015 style connectors. The -00 at the end may specify a standard negative-voltage-demodulator interface. |
| Mounting | Threaded for installation in a mounting boss or directly into a casing. The extended tip often requires a custom mounting bracket or spacer. |
| Cable Specification | Special high-temperature, mineral-insulated (MI) or exotic fluoropolymer cable for the integral section, with a high-temperature extension cable. The -12- suffix defines this robust construction. |
| Probe Body | Stainless steel, with a high-temperature ceramic-filled or fully welded tip to protect the sensing coil. |
| Dimensions (Probe) | Body Diameter: 11 mm. Extended Tip Length: Typically 100mm (4.0 in) or more (verify with drawing). |
| Weight (Approx.) | Probe & 6m Cable: ~2.2 - 2.8 kg (4.9 - 6.2 lbs), due to heavy-duty construction and armored cable. Full 16m System: ~4.5 kg (9.9 lbs) including extension cable. |
Primary Application Scenarios
Gas Turbine Hot Section Monitoring:
The primary application. Used for measuring radial vibration on the turbine rotor bearings located in extremely hot compartments. The extended tip and high-temperature rating are essential for survival in this environment.
Steam Turbine High-Pressure Casing & Valve Stems:
Installed for vibration or position monitoring on high-pressure/intermediate-pressure turbine casings, valve stem position, or differential expansion where probes are exposed to high steam temperatures and heat radiation.
High-Temperature Process Compressors:
Critical for syngas, cracked gas, or hydrogen compressors in petrochemical plants, where discharge temperatures and casing heat are extreme.
Special Applications with Thermal Barriers or Insulation:
The extended tip (
330173) is specifically designed for applications where the probe must pass through a thermal barrier, thick insulation jacket, or a cooling sleeve to reach the measurement surface on the shaft.Severe-Service API 670 Applications:
Specified for API 670 compliant machinery protection systems in refineries and chemical plants where the service conditions explicitly call for high-temperature rated transducers with extended reach.
Critical Note:
This is a special-order, application-engineered transducer. The 330173 base number specifically denotes an 11mm probe with an extended tip, and the -12- suffix is critical for high-temperature capability.
It must be used with a compatible 3300 XL series Proximitor.
The exact tip length, temperature limit, and target material calibration are defined on the system's calibration certificate.
Installation drawings are mandatory to ensure proper clearance and thermal management.
Always consult the factory-provided documentation (Calibration Sheet, Mechanical Outline Drawing) for the specific part number 330173-00-06-10-12-00 before installation and commissioning.
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