330904-02-10-70-01-00 Proximity Transducer Extension Cable
Description:
The part number 330904-02-10-70-01-00 refers to a specific Extension Cable Assembly for a Bently Nevada Proximity Transducer System (PTS). This is not a complete transducer system but a critical component used to connect a proximity probe to its corresponding proximitor (oscillator/demodulator) when they are located far apart.
This cable is designed to maintain signal integrity over long distances in electrically noisy industrial environments. It is a shielded, coaxial cable with specific connectors on each end to ensure a proper and reliable connection within the Bently Nevada ecosystem. The part number string defines its length, connector types, and other physical characteristics.
Parameters & Specifications
The following table details the key parameters for this specific cable assembly based on the standard Bently Nevada part numbering scheme.
| Parameter | Specification / Interpretation |
|---|---|
| Part Number | 330904-02-10-70-01-00 |
| Component Type | Proximity Transducer Extension Cable |
| Cable Length | -70- = 70 feet (21.3 meters) |
| Connector 1 (Probe End) | -02- = Typically a Bendix-style connector (or similar circular, multi-pin connector) that connects to the probe's integral cable. |
| Connector 2 (Proximitor End) | -10- = Typically a TNC-style coaxial connector that plugs into the proximitor. |
| Cable Type | -01- = Specifies the jacket material and construction, often a high-temperature, flexible, and shielded coaxial cable. |
| Jacket Material / Rating | -00 = Often indicates a standard PVC or FEP jacket material. |
| Electrical Shielding | Yes, multiple layers of braided shielding to prevent EMI/RFI noise. |
| Operating Temperature | Typically -40°C to 177°C (-40°F to 350°F) or higher, depending on the jacket material. |
| Impedance | Designed to match the proximitor system (typically low impedance). |
| Typical Diameter | Approx. 5 mm to 8 mm (0.2 to 0.3 in) |
| Typical Weight | Approx. 2.5 kg (5.5 lbs) for a 70-foot cable (weight is proportional to length). |
Important Note: *The interpretation of connector suffixes (-02-, -10-) can be specific to the product line and era. For guaranteed compatibility and mechanical drawings, consulting the official Baker Hughes Bently Nevada Cable Accessories Datasheet for this exact part number is essential.*
Application Scenarios
This extension cable is a fundamental part of installing a proximity transducer system anywhere the probe and proximitor cannot be located close together. Its sole purpose is to reliably extend the electrical connection between these two components.
Connecting Probes to Rack-Mounted Proximitors: The most common application. In a centralized monitoring system, proximitors are mounted in a 3500 rack in a control panel, while the probes are installed on machinery that can be dozens of feet away. This cable bridges that distance.
Field Wiring in Junction Boxes: The cable is often routed through conduit and junction boxes to provide a protected path from the harsh machinery environment to the control room.
Retrofitting and System Expansion: Used to add new measurement points to an existing system where the cable run is long.
Replacement for Damaged Cables: Used as a direct replacement for an existing extension cable that has been damaged due to wear, heat, or chemical exposure.
Ensuring Signal Integrity in Noisy Plants: The high-quality shielding is critical in plants with high electromagnetic interference from motors, variable frequency drives (VFDs), and power lines, ensuring the clean signal required for accurate vibration and position measurement.
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