Ups Preventive Maintenance Checklist Format Pdf ^hot^ -

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| Parameter | Measurement Point | Acceptable Range | | :--- | :--- | :--- | | Input Voltage (L-L) | UPS Input Terminals | Nominal ±10% | | Input Voltage (L-N) | UPS Input Terminals | Nominal ±10% | | Output Voltage | UPS Output Terminals | Nominal ±5% | | Output Frequency | UPS Output Terminals | 50/60 Hz ±0.5 Hz | | Charger Float Voltage | Battery Bus | 2.25V – 2.30V per cell | | Ripple Voltage | Battery Bus | < 0.5% of float voltage | ups preventive maintenance checklist format pdf

| Action | Done | |--------|------| | Clean air filters (if present) | ☐ | | Vacuum vents and intake grilles | ☐ | | Tighten all accessible electrical connections | ☐ | | Inspect fans for dust buildup | ☐ | 2. Visual and Environmental Inspection

This is the "diagnostic" section. It requires the technician to use testing equipment. ups preventive maintenance checklist format pdf

Cap any fire detectors in the UPS room if cleaning work involves dust disturbance to avoid false alarms. 2. Visual and Environmental Inspection