Product Overview

The 125388-01 is a precision-engineered internal chassis component specifically developed for the Bently Nevada 3500/05 rack system. This half-height structural interface is designed to facilitate the installation of specialized 3500/25 Enhanced Keyphasor modules and other half-size cards within a standard full-height slot. By providing the necessary mechanical guidance and electrical alignment, the 125388-01 ensures that secondary monitoring modules are securely seated against the rack's backplane. This component is essential for expanding the functional density of a machinery protection system, allowing for specialized speed and phase measurements without requiring additional full-slot real estate.

Hardware Framework and Physical Specifications

• Component Type: Internal Module Carrier (Half-Height)

• Compatibility: Exclusively for Bently Nevada 3500/05 Rack Series

• Module Support: Optimized for 3500/25 Enhanced Keyphasor and similar half-height cards

• Chassis Dimensions: 24.6 cm x 22.2 cm x 2.0 cm (9.69 in x 8.74 in x 0.79 in)

• Net Weight: 0.26 kg (0.57 lbs)

• Material: Industrial-grade aluminum alloy with anti-corrosive coating

• Mounting Position: Internal slot-mount within the 3500/05 main chassis

• Origin: Manufactured in the USA

System Integration and Industrial Utilities

The 125388-01 is primarily utilized in complex machinery protection strings where high-density monitoring is required. In power generation and oil and gas facilities, it is often employed to house Keyphasor modules that provide essential timing and phase reference signals for rotating shafts. Because it allows two half-height modules to occupy the space of a single full-height slot, it maximizes the efficiency of the 3500/05 system rack. This chassis is critical during system upgrades or new installations where phase-locked data is necessary for advanced vibration analysis, helping engineers monitor turbines, compressors, and large industrial motors with greater precision while minimizing the overall hardware footprint.

FAQ

Q: Is the 125388-01 required for every module in a 3500 rack?

A: No, it is only required for half-height modules such as the 3500/25. Standard full-height monitor modules like the 3500/42M install directly into the rack without this internal chassis.

Q: Can I install two 125388-01 units into a single 3500/05 slot?

A: Yes, the rack is designed to accept two half-height internal chassis (an upper and a lower) in one slot, effectively doubling the monitoring capacity for that specific slot position.

Q: Does this part include the Keyphasor module itself?

A: No, the 125388-01 is the mechanical internal chassis only. The electronic modules and I/O cards must be purchased separately.

Q: What happens if the internal chassis is not correctly seated?

A: If not properly installed, the module may fail to establish a clean connection with the rack backplane, resulting in configuration errors or loss of data in the Rack Configuration Software.

Q: Is this component compatible with the 3500 Mini-Rack?

A: Yes, the 125388-01 is compatible with all standard 3500/05 rack variations, including the 19-inch full-size rack and the 12-inch mini-rack.