Product Description:

The Bently Nevada 330880-28-15-25-03-02 is a PROXPAC XL Proximity Transducer Assembly, a self-contained eddy-current sensor system used for non-contact shaft vibration and position monitoring on critical rotating machinery.The PROXPAC XL housing is made of Polyphenylene Sulfide (PPS), which is an advanced, molded thermoplastic. This material replaces the steel and aluminum in previous housings offered in the Bently Nevada product line. It also incorporates glass and conductive fibers in the PPS to strengthen the housing and more effectively dissipate electrostatic charges. The PROXPAC XL housing is rated for Type 4X and for IP66 environments and provides extra protection in severe environments.

Frequently Asked Questions (FAQ)

Q:What environments is this specific part number deployed?

A:The multiple approvals (-28) make it suitable for regulated hazardous areas. Typical installations involve rotating machinery components in Power Generation (thrust bearing wear) and Oil & Gas operations (centrifugal compressors and gas turbines).
Q:What is the typical gap voltage range during installation?
A:For a properly calibrated 3300 XL 8 mm system, the normal gap voltage should sit around −9 VDC to −11 VDC when the probe is centered within its linear range. The standard power supply requirement spans −23 to −30 VDC.

Q:What makes the PROXPAC XL different from standard proximity probes?
A:The assembly is completely self-contained. The housing cover includes an integrated 3300 XL Proximitor sensor. This design removes the need for separate extension cables and dedicated external Proximitor enclosures. Field cabling connects directly from the monitor to the housing assembly.

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