Product: 330103-00-05-50-02-05
Category: Proximity Transducer System (Driver-Monitor Style) for Vibration and Position Measurement
Overview:
The 330103-00-05-50-02-05 is a specialized and complete 9mm driver-style proximity transducer system from the Bently Nevada 3300 series. This configuration indicates a system designed to be installed in a threaded bushing (driver) that is first mounted in the machinery casing, into which the probe is then inserted and secured. The part number specifies a 5-meter integral probe cable (-05-) and a very long 50-meter (164 ft) total system length (-50-) when combined with its extension cable. It is engineered for high-reliability displacement measurement in demanding applications, offering excellent mechanical protection and installation flexibility.
Key Parameters & Specifications
| Parameter | Specification / Description |
|---|---|
| System Type | Driver-Monitor (Bushing) Style Proximity Transducer System. |
| Probe Diameter | 9 mm (0.354 in) - A robust size for critical machinery. |
| Driver (Bushing) Thread Size | Typically 5/8-18 UNF or M16 x 1.5 for mounting in the casing. The driver provides a secure, sealed housing for the probe. |
| Total System Length | 50 meters (164 feet). This is the combined length from probe tip to proximitor, achieved by connecting the probe's 5m integral cable to a 45m extension cable. |
| Linear Range | Standard: 0.25 to 2.3 mm (10 to 90 mils) from the probe tip. |
| Scale Factor (Sensitivity) | 7.87 V/mm (200 mV/mil) for standard steel targets (AISI 4140). |
| Frequency Response | 0 to 10 kHz. |
| Output Signal | -1 to -17 Vdc (or 0 to -18 Vdc) linear analog signal, proportional to the gap. Requires a compatible proximitor (e.g., 330180-XX-XX). |
| Target Material | Ferrous Steel (standard). Must be recalibrated for other materials like stainless steel. |
| Temperature Rating | Probe/Driver: Standard version up to 177°C (350°F). |
| Connectors | Male MIL-C-5015 connector on the probe cable, mating with a female connector on the extension cable. The -02 code often specifies this connector type and a negative voltage system. |
| Key Feature: Driver | The probe is installed into a separate, threaded driver assembly. This allows for probe removal/replacement without disturbing the casing seal or alignment. The driver often includes a locknut and O-ring seals. |
| Electrical Insulation | The driver typically provides electrical isolation between the probe body and the machine casing, preventing ground loop issues. |
| Cable Specification | High-temperature, oil-resistant, armored cable for the integral and extension sections for durability in cable trays and harsh environments. |
| Probe Tip Length | Standard, typically ~50-60mm from the driver face when installed. |
| Dimensions & Weight (Probe & Driver) | Driver: Approx. 30-40mm long, 5/8" or M16 threads. Probe Body: 9mm diameter. Weight (Probe + 5m cable): ~1.0 kg (2.2 lbs). Weight (Full 50m System): ~5.5 kg (12.1 lbs) including the heavy long cable. |
Primary Application Scenarios
Critical Turbomachinery on Large Trains:
The driver-monitor style and 9mm robustness make this a preferred choice for the most critical radial vibration and axial position measurements on large steam turbines, gas turbines, centrifugal compressors, and turbo-expanders in power generation and oil & gas.
Applications Requiring Probe Isolation or Frequent Removal:
The driver allows for easy probe replacement during maintenance without breaking the pressure seal on the casing (for pressurized housings). The electrical isolation is critical for machines with grounding or shaft current issues.
Long-Distance Signal Runs:
The 50-meter system length is specified for installations where the monitoring rack or junction box is located far from the machine, such as in separate equipment rooms or on different platforms within a large plant.
API 670 Compliant Installations:
This style of transducer system is commonly specified to meet the stringent mechanical and performance requirements of API Standard 670 (Machinery Protection Systems) for refinery and petrochemical applications.
High-Reliability Industries:
Oil, Gas & Petrochemical: Main process gas compressors, hydrogen compressors, high-pressure injection pumps.
Power Generation: Main turbine-generator bearing monitoring.
LNG: Cryogenic and boil-off gas compressors.
Marine Propulsion: Main turbine and reduction gear monitoring on naval and commercial vessels.
Critical Note: The 330103 system must be used with a compatible Bently Nevada Proximitor (e.g., 330180-XX-XX). The long 50-meter cable length can affect system capacitance; the connected proximitor must be calibrated or selected to account for this. The -05-50-02-05 suffix defines a very specific built configuration. Always verify the mechanical drawings for the driver interface and the system calibration sheet for the exact target material and gap voltage before installation.
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