Features and benefits

 • Self-contained design: 330880-28-15-063-00-02 integrates the Proximitor sensor into the housing cover, eliminating the need for external Proximitor housings and extension cables.

 • Simplified installation: Direct field wiring connection to monitoring systems reduces wiring complexity, installation time, and potential connection failures.

 • IP66 / Type 4X protection: Robust PPS thermoplastic housing provides excellent sealing against dust, water ingress, and harsh industrial environments.

 • EMI/ESD resistance: Glass- and conductive fiber-reinforced PPS material improves electrostatic dissipation and maintains stable signal performance in noisy electrical environments.

 • Improved mechanical durability: Stainless steel sleeve components and reinforced structure ensure long-term reliability under vibration and mechanical stress.

 • High measurement accuracy: Designed for 3300 XL 8 mm probe systems, delivering stable vibration and position monitoring with strong linear response and industrial-grade precision.

Applications

330880-28-15-063-00-02 is widely used for vibration, position, and shaft displacement monitoring on turbines, compressors, pumps, and motors. It is ideal for fluid-film bearing machines requiring accurate proximity measurement. The self-contained PROXPAC XL design simplifies installation in remote or harsh locations. It supports predictive maintenance, real-time condition monitoring, and machinery protection in power generation, oil & gas, and heavy industrial environments.

Ordering Information

Installation & Troubleshooting FAQ

Q1: What mechanical purpose does the 1.5-inch standoff adapter serve in this PROXPAC XL configuration?
A: The 1.5-inch standoff adapter acts as a mechanical spacer that bridges the gap between the machine casing surface and the housing base. It allows engineers to fine-tune the internal probe penetration when mounting space behind the target is tight or when utilizing long sleeves.

Q2: How does the integrated design of this housing eliminate traditional sensor extension cables?
A: The molded plastic housing cover houses its own 3300 XL Proximitor sensor. The internal 1-meter probe cable plugs directly into this built-in electronic interface inside the cover, meaning external field lines land directly on the terminal block without intermediate extension hardware.

Q3: What are the proper torque ratings required to secure the main mechanical connections?
A: To ensure strict structural integrity and prevent physical movement under machinery vibration, tighten the main casing retaining nut to 29.5 N-m (260 in-lb) and tighten the adjustable probe sleeve locknut to 39.3 N-m (350 in-lb).

Q4: My system output voltage is locked at -17.5 VDC. Is the proximity probe gapped correctly?
A: No, -17.5 VDC indicates that the probe tip is too far away from the observed target shaft or has moved out of its linear range. Slowly rotate the probe further into the sleeve towards the target until your multimeter scales into the formal linear range of -1.0 VDC to -17.0 VDC.

Q5: Can the Polyphenylene Sulfide (PPS) plastic housing withstand direct steam exposure inside a turbine hall?
A: Brief periods of contact with hot water up to 95°C (203°F) or condensing steam will not significantly affect housing strength. Avoid long-term continuous exposure exceeding 6 to 8 weeks, as prolonged contact can reduce the thermoplastic shell's structural strength to half of its initial value.

Accessories