The BENTLY 3500/22-01-01-00 is a fundamental part of the 3500 Machinery Protection System. It serves as the Rack Interface Module (RIM), managing the synchronization of the internal rack bus. Every monitor module in the rack relies on the 3500/22 to provide the timing signals necessary for phase-locked measurements. This synchronization is what allows the system to accurately relate vibration data to the shaft position provided by a Keyphasor sensor.
As a Transient Data Interface, the 3500/22-01-01-00 is responsible for collecting data from the backplane and formatting it for external consumption. It supports both static data (overall levels) and dynamic data (waveforms). This version of the TDI is highly reliable and has been a staple in power plants and refineries for decades, providing the backbone for machinery health management programs.

The front panel of the 3500/22-01-01-00 features a configuration port that allows maintenance personnel to connect a laptop directly to the rack. This enables "at-the-machine" configuration changes and real-time troubleshooting. The module's internal logic ensures that configuration changes are verified before being applied, maintaining the safety integrity of the machinery protection system.
The 3500/22-01-01-00 maintains a system-wide event list. Any alarm, system fault, or configuration change is logged with a high-precision timestamp. This log is essential for reconstruction of events leading up to a machine trip. By analyzing the sequence of events provided by the TDI, engineers can determine if a trip was justified by mechanical issues or caused by an instrumentation fault.
Built to meet API 670 standards, the 3500/22-01-01-00 is designed for 24/7 operation in the world’s most demanding industrial environments. It features extensive electrical isolation to prevent ground loops and protect the rack's sensitive measurement channels from external noise. Its proven track record makes it a trusted component in the protection of global energy infrastructure.



