330881-28-10-090-03-02

 

Features:

• Interface Between the Machine Casing and 3500 Monitoring System
• Combines Capability of Proximity Sensing with Explosion-Proof Housing Protection
• Operates in Conjunction with the 3300 XL and Standard 3500 Proximitor Monitors

The 330881-28-10-090-03-02 operates as the PROXPAC XL Proximity Sensor Assembly in a 3500 rack, providing reliable eddy current signal acquisition from rotating machinery to the monitoring modules within the system. It continuously converts mechanical displacement and vibration data from field-mounted targets to regulated electrical signals and transmits this data through the probe cable to support steady state operation of all proximity monitors and modules. Seamless signal transfer is standard with the 330881-28-10-090-03-02, however using an optional Explosion-Proof Housing Configuration will provide additional protection against hazardous gases and dust in demanding industrial environments. The 330881-28-10-090-03-02 has made improvements in several areas over previous proximity probe designs in addition to incorporating universal multiple agency approval capability within the 3500 rack.

The 330881-28-10-090-03-02 provides essential proximity sensing functions common to the entire monitoring path, and is a critical component of the measurement chain, directly affecting the accuracy and reliability of vibration and displacement data acquisition in the overall monitor system. One 330881-28-10-090-03-02 assembly is required per measurement point depending on the desired monitoring coverage and installation location. The 330881-28-10-090-03-02 occupies no rack slots but extends the connection from field-mounted machinery to the 3500 rack backplane, and is always terminated at the 3500/40M, 3500/42 or compatible Proximitor module input channel (far left position of the module face, the dedicated sensor input terminals).

For Hazardous Area Protection applications, the 3500 System requires the 330881-28-10-090-03-02 PROXPAC XL assembly installed between the field-mounted probe and the machine casing. In addition to standard proximity probe installations, the explosion-proof housing configuration also performs reliable signal transmission in dangerous environments. The 330881-28-10-090-03-02 hazardous area configuration executes signal transfer using the PPS housing with multiple agency approvals specified in the assembly options. Using this method, the explosion-proof system continually monitors the integrity of the probe and housing seal. If the system detects that the primary signal path is compromised (outside configured safety/tolerance levels), it will automatically utilize the redundant sealing mechanism to maintain environmental protection and prevent ignition hazards, placing a diagnostic event in the System Event List if configured.