DELTA Pro

How much of DELTA Pro’s published storage reaches an AC load?

Charge using the manufacturer procedure, allow temperature stabilization, then discharge through a power analyzer at a fixed low load and again near 50% of rated AC output until normal automatic cutoff.

Can the inverter sustain rated loads and respond predictably to short steps?

Apply a correctly rated programmable or resistive load at 25%, 50%, 75%, and 100% of rated output. Log watts, volts, frequency, temperature, fan behavior, faults, and automatic shutdown.

How long and how much wall energy does a normal full recharge require?

From normal automatic discharge cutoff, recharge to the manufacturer-defined full state with the included AC method. Log input watts, input Wh, elapsed time, charge mode, and ambient temperature.

When do fans become noticeable and how warm does the enclosure become?

At fixed loads, record A-weighted sound at 1 m and 7 m plus non-contact surface temperatures at defined enclosure points. Publish ambient sound and temperature.

If backup transfer is advertised, what interruption does a representative load experience?

Only when the manufacturer advertises the feature, use an isolated, instrumented load and suitable waveform capture to record transfer interruption and output behavior during repeated loss-and-return events.