CASE STUDY
AMF System Modernisation & Custom Logic Implementation with Deep Sea Electronics (DSE7420 MKII, DSE890 MKII)
Project Background & Client Profile
The Challenge: Legacy Hardware & Redundant Operation
The client’s emergency power system relied on a legacy Bernini BE22 architecture. This older setup was physically fragmented, splitting control between a door-mounted display and a chassis-mounted “base-box.”
This dual-module configuration created excessive wiring complexity behind the panel, increasing the risk of connection faults. Furthermore, the generator lacked “awareness” of the facility’s operating hours, meaning it would run unnecessarily during power dips on weekends or nights—wasting fuel and increasing maintenance costs.
The Solution: Full Turn-Key Integration
Hagar Distribution provided a complete technical overhaul, moving beyond simple component supply to full systems integration.
1. Streamlined Architecture – We decommissioned the split-unit Bernini system and retrofitted the panel with a DSE7420 MKII Auto Mains Failure Module.
Wiring Overhaul: As seen in the project photos, the retrofit allowed us to strip out the cluttered harness linking the old base-box and display. The new setup features clean, direct termination to the DSE7420, freeing up valuable cabinet space and simplifying future troubleshooting.
Custom PLC Logic (The “Smart” Upgrade) – Using the DSE Configuration Suite, our engineering team wrote a custom PLC program directly onto the controller.
The Logic: We utilised the DSE’s internal clock and calendar functions to create a “Working Hours” schedule (Mon–Fri).
The Result: The generator now operates in Automatic Mode only during business hours. During nights and weekends, it automatically switches to Manual/Stop Mode. This eliminates nuisance starts during non-critical times, directly reducing the client’s operational expenditure (OPEX).
Global Connectivity – To ensure the system is never out of reach, we installed a DSE890 MKII Gateway. This hardware bridges the generator to the DSEWebNet® software, allowing the client to monitor fuel levels, battery status, and operating mode remotely via 4G/Ethernet.
Project Outcome
The facility now operates on a unified, intelligent platform. The wiring is cleaner, the system is accessible remotely, and the generator only runs when it is truly needed.
