Technical Notes
Short, specific observations from E&I inspection, data center infrastructure and energy control — written when there is something worth noting.
Calibration drift: when green means nothing
Generator load-test records: what to check
BMS alarm logic: suppressed alerts and missed faults
A generator that starts is not a generator that holds load. The test record should show step-load response, voltage dip, frequency recovery and steady-state fuel consumption — not just runtime.
A pressure transmitter showing healthy values can be reading 4% low. Without a calibration record tied to a traceable standard, the dashboard tells you nothing useful.
Alarm flood suppression is added to silence nuisance alerts. It also silences real ones. Reviewing BMS alarm priority lists and inhibit configurations is a standard part of any energy audit.
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