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The 169337 external power supply from Bently Nevada feeds machinery protection racks and field transmitters with regulated DC power. Plant engineers install this unit whenever a monitoring cabinet needs a dependable supply outside the main rack. Consequently, it keeps vibration, position, and speed channels running without interruption.
Key Technical Specifications
The table below outlines the main physical and electrical parameters of the 169337 unit.
| Parameter | Specification |
|---|---|
| Product Type | External Power Supply |
| Compatibility | Bently Nevada 3300 / 3500 series systems |
| Dimensions | Approximately 250 mm x 130 mm x 60 mm |
| Weight | Approximately 1.3 kg (2.9 lbs) |
| Mounting | Panel or wall mounting bracket |
| Interface | DC output terminals and status indicator lines |
| Connectors | Screw terminal blocks and output cable connector |
| Component Count | Multiple regulators, transformers, and protection circuits |
| Energy Storage | Bulk capacitors for voltage ride-through |
| Input Voltage | Wide-range AC mains input |
| Output Rails | Regulated DC output for monitors and transmitters |
| Operating Temperature | 0 degrees C to 60 degrees C |
| Storage Temperature | -40 degrees C to 85 degrees C |
| Humidity | 5% to 95% non-condensing |
Functional Overview
This unit converts AC mains power into clean, isolated DC rails for monitoring equipment. Therefore, it shields sensitive measurement circuits from ripple and line transients. The 169337 also monitors output status and signals faults through front-panel indicators. Meanwhile, its onboard energy storage sustains output during brief input interruptions.
Installation and Handling Notes
Always verify input voltage and polarity before connecting the 169337 to a live cabinet. In addition, inspect bulk capacitors for swelling or leakage during routine service. Tighten all power terminals to the specified torque value. Finally, record measured rail voltages in your maintenance log.