330104-00-08-10-01-05 Proximity Transducer System (PTS)
Description:
The part number 330104-00-08-10-01-05 refers to a specific configuration of a 5 mm Proximity Transducer System (PTS) from Baker Hughes (Bently Nevada). This system is a complete, pre-calibrated kit designed for a single channel of measurement on rotating machinery, typically used in applications where space is constrained and a smaller probe is required.
It is an integrated package that contains all matched components for immediate installation:
One 5mm Proximity Probe
One Extension Cable
One Proximitor (Oscillator/Demodulator)
This system functions identically to the standard 8 mm systems but uses a smaller diameter probe. It measures the distance between the probe tip and a conductive target to monitor radial vibration, axial position, or speed.
Parameters & Specifications
The following table details the key parameters for this specific configuration based on the standard Bently Nevada part numbering scheme.
| Parameter | Specification / Interpretation |
|---|---|
| Part Number | 330104-00-08-10-01-05 |
| System Type | 5 mm Proximity Transducer System (PTS) |
| System Function | Vibration / Position / Keyphasor® Measurement |
| Probe Length | -08- = 8 mm (0.315 inches) from mounting thread to tip. This is a very short probe. |
| Probe Diameter | 5 mm (specified by the "330104" prefix) |
| Connector Type | -10- = Standard "English" Thread (UNF 5/8-24) on the probe. |
| Cable Length | -01- = 1 meter (3.3 feet) of integral cable plus extension cable. |
| Proximitor Model | -05 = Likely refers to a standard 5-meter (16.4 ft) coaxial cable and a specific 5mm Proximitor version. |
| Target Material | AISI 4140 Steel or equivalent (standard for calibration). |
| Linear Range | 0.1 to 0.8 mm (4 to 32 mils) - typical for 5mm systems. |
| Scale Factor | 7.87 V/mm (200 mV/mil) |
| Power Supply | Proximitor typically requires -17 to -26 VDC. |
| Output Signal | -1 to -11 VDC (or 0 to -22 VDC for two-wire systems) proportional to gap. |
| Operating Temperature (Probe) | Up to 177°C (350°F) with standard cable. |
| Typical Probe Weight | ~ 0.05 kg (0.11 lbs) |
| Typical Proximitor Weight | ~ 0.5 kg (1.1 lbs) |
| Mounting Thread | Likely a smaller thread size compatible with the 5mm probe body (e.g., 10-32 UNF). |
Important Note: The interpretation of suffixes, especially the mounting thread for a 5mm probe, should be confirmed with the official Baker Hughes Bently Nevada PTS Selection Guide. The short 8mm probe length and 1m cable indicate a very specific application.
Application Scenarios
This 5 mm Proximity Transducer System is designed for applications where a standard 8 mm probe is too large to fit. Its compact size and short length make it suitable for tight spaces and small machinery.
Vibration Monitoring on Small Bore Machinery: The primary application is on machines with small shaft diameters and limited space for probe installation, such as:
Small Turbines
High-Speed Spindles
Small Pumps and Compressors
Keyphasor® Reference on Space-Constrained Equipment: Used as a once-per-revolution timing probe in applications where the mounting location is very tight and only a small probe can be physically installed.
Axial Position Monitoring on Compact Thrust Assemblies: Used to measure thrust position on smaller machines where the thrust collar and associated structure do not allow for an 8 mm probe.
Research and Development Test Rigs: Often used in laboratory settings and benchtop test rigs where machinery scale is small, and precise measurements are needed with minimal intrusion.
Monitoring of Gear Meshes and Specialized Components: In some cases, used to measure the vibration of specific components like idler gears or specific points on a rotor assembly where clearance is minimal.
Typical Machinery:
Small Steam Turbines
High-Speed Pinion Shafts in Gearboxes
Turbochargers
Small Integrally Geared Compressors
High-Speed Motors and Spindles
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