330930-060-00-05 Proximity Transducer System (PTS)
Description:
The part number 330930-060-00-05 refers to a 3300 XL 8mm Proximity Transducer System from Baker Hughes (Bently Nevada). This is a complete, pre-calibrated kit designed for a single channel of machinery monitoring, specifically for measuring radial vibration or axial position on rotating equipment.
This system is part of the enhanced 3300 XL series, known for its improved temperature stability and signal integrity. The kit includes all necessary, matched components for immediate installation:
One 8mm Proximity Probe
One Extension Cable
One Proximitor (Oscillator/Demodulator)
The key identifier -060- in the part number specifies the critical probe length, which is a key factor in selecting the right probe for the mechanical installation.
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 | 330930-060-00-05 |
| System Type | 3300 XL 8mm Proximity Transducer System (PTS) |
| System Function | Vibration / Position Measurement |
| Probe Length | -060- = 60 mm (2.36 inches) from mounting thread to tip. |
| Probe Diameter | 8 mm (standard) |
| Connector Type | -00- = Standard "English" Thread (UNF 5/8-24) on the probe. |
| Cable Length | -00 = Typically indicates a standard 5-meter (16.4 ft) extension cable is included. |
| Proximitor Model | -05 = Specifies a particular 3300 XL Proximitor model, often with a 5-meter coaxial cable attached and specific terminal connections. |
| Target Material | AISI 4140 Steel or equivalent (standard for calibration). |
| Linear Range | 0.2 to 0.9 mm (8 to 36 mils) |
| Scale Factor | 7.87 V/mm (200 mV/mil) ± 2% |
| Power Supply | -18 VDC to -26 VDC (Typically from a rack or external power supply) |
| Output Signal | -1 V to -11 VDC (for a 2-wire system) or 0 to -22 VDC (for a true 2-wire system), proportional to the gap. |
| Typical Probe Weight | ~ 0.1 kg (0.22 lbs) |
| Typical Proximitor Weight | ~ 0.5 kg (1.1 lbs) |
| Operating Temperature (Probe) | -40°C to 177°C (-40°F to 350°F) [Standard cable] |
Important Note: *The exact specifications for the "-05" proximitor suffix and the confirmed cable length should be verified with the official Baker Hughes Bently Nevada 3300 XL 8mm PTS Datasheet. The dimensions and weights provided are typical values.*
Application Scenarios
This 3300 XL Proximity Transducer System is used for high-reliability machinery protection across various industries. Its 60mm probe length makes it suitable for applications where the probe must reach through a certain thickness of machinery casing or a mounting boss.
Shaft Radial Vibration Monitoring: The primary use. It measures the dynamic motion of a rotor relative to its bearings, providing essential data to detect and protect against:
Imbalance
Misalignment
Shaft Rubs
Fluid-induced instabilities (e.g., Oil Whirl)
Shaft Axial Position (Thrust) Monitoring: Used to monitor the position of a rotor in the axial direction to prevent damage from:
Excessive thrust bearing wear
Rotor-to-stator contact during thermal expansion
Keyphasor® Reference Signal: A dedicated proximity probe system is often used to generate a once-per-revolution pulse. This signal is critical for measuring rotational speed and vibration phase angle, which are indispensable for machine diagnostics and balancing.
Eccentricity Monitoring: Measures the slow-roll runout or bow of a shaft at low speeds during startup and coast-down.
Differential Expansion Monitoring: On large steam turbines, it measures the relative growth between the rotor and the stationary casing.
Typical Machinery:
Steam Turbines & Gas Turbines
Centrifugal & Axial Compressors
Large Pumps & Fans
Turbo-generators
Gearboxes
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