The ALFA LAVAL LPS M 3-6 (901214601) is a specialized power supply module designed for UV monitoring systems and industrial lighting arrays within Alfa Laval separators and processing equipment. This unit ensures a stable and regulated power output to maintain the operational integrity of ultraviolet (UV) lamps, which are critical for water treatment and sterilization processes in marine and industrial applications.
⚙️ Product Specifications
| Feature | Specification |
| Model | LPS M 3-6 |
| Part Number | 901214601 |
| Manufacturer | Alfa Laval |
| Input Power | Standard Industrial AC (Refer to label) |
| Compatibility | Alfa Laval UV sterilization/monitoring systems |
| Mounting | DIN Rail / Panel Mount |
| Weight | 1.2 kg |
| Country of Origin | Sweden |
🚀 Operation Guidelines & Usage Methods
- Handling: This power supply handles high-frequency voltage components. Always ensure the device is discharged before maintenance. Use insulated tools when adjusting output levels.
- Environment: Must be installed in a dry, vibration-dampened area of the control cabinet. Ensure adequate airflow around the heatsink to prevent thermal shutdown.
🔌 Power Sequence
- Power-On:
- Verify that the UV lamp is correctly seated and the socket pins are clean.
- Ensure the load connection is secure before applying mains power.
- Energize the primary AC input.
- The internal status LED should glow green, indicating the lamp is receiving the correct ignition voltage.
- Power-Off:
- Turn off the system via the primary controller.
- Allow 60 seconds for internal capacitors to discharge before touching the output terminals.
- Disconnect input power only after ensuring the lamp is fully extinguished.
📋 Standard Operating Procedure (Step-by-Step)
- Pre-Check: Inspect the input/output wiring for signs of heat stress or loose connections.
- Ignition: Upon power-up, the supply performs an automated strike sequence to ignite the UV lamp.
- Monitoring: Check the “Lamp On” status signal on the control panel. If the signal remains inactive, verify the lamp filament continuity.
- Validation: Use a light meter or the system’s UV sensor interface to confirm the intensity is within the required operating range.
🔧 Parameter Setting & Modification
- Calibration: This power supply is typically factory-configured for specific lamp wattages (3-6 ranges). Adjustments should only be performed by certified technicians using the specific service calibration port located on the side of the module.
- Settings: Modifications to current output are generally restricted to prevent lamp premature failure or housing damage due to excessive heat.
❓ Frequently Asked Questions (Q&A)
- Why does my UV lamp flicker on start-up?
Flickering often indicates the supply is struggling to ignite the lamp. Check the age of the lamp; as UV lamps age, they require higher striking voltages that the power supply may no longer be able to provide.
- What if the status LED is red?
A red LED typically indicates a fault or an “Open Loop” error. Check the wiring to the lamp; if the connection is intact, the power supply unit has likely reached its end-of-life or has an internal failure.
- Is this compatible with generic power supplies?
No. This module is specifically calibrated for the unique ignition characteristics of Alfa Laval UV lamps. Replacing it with an off-the-shelf power supply will likely damage the lamp and void equipment safety certifications.
- How often should I test the module?
Routine performance checks during your standard vessel or plant maintenance cycle (e.g., every 6 months) are recommended to ensure constant UV dosage levels.


