Maripur NF-50

Measure UV lamp intensity using radiometer; verify it exceeds validated minimum threshold for current flow rate. Monitor lamp operating hours; schedule replacement at 65% output threshold (not at failure). Confirm all lamp positions are illuminated.

For Clarimar MF: visually inspect 'Bio-Sword' filtration element for biological accumulation; verify pressure differential across filter within normal range. For Maripur NF: check membrane permeability via trans-membrane pressure (TMP); confirm clean-in-place (CIP) system functionality; inspect for organic/inorganic fouling deposits.

Conduct monthly water quality testing: coliform bacteria count (limit ≤100/100ml), total suspended solids TSS (≤35 mg/l), biochemical oxygen demand BOD (≤25 mg/l), chemical oxygen demand COD (≤125 mg/l). Document results and compare against baseline performance test values.

Verify nominal voltage stability at 380-440V AC; confirm frequency stability (50 or 60 Hz). Test electrical systems under simulated ship motion conditions (vibration per MEPC.107(49)). Inspect enclosure sealing for humidity/moisture ingress; verify electrical continuity and grounding integrity.

For Clarimar MF composite tanks: inspect for surface cracks, discoloration, or delamination in ACO Composite PPFR GREY material. For Maripur NF stainless steel tanks: check for pitting, stress corrosion cracking, or scale accumulation. Inspect all weld seams (or bolted connections for modular units) for integrity; verify gaskets and dynamic seals for degradation.