11 June 2026

Reading door-open spikes without mistaking them for excursions

<p>Receiving peaks in a chilled warehouse often look alarming on a raw temperature plot. A dock curtain opens, warm air rolls in, and a probe near the threshold climbs for a few minutes before the evaporator catches up.</p> <p>If your cold chain monitoring dashboard treats every rise as an excursion, night supervisors stop trusting alerts. If it ignores every rise, quality teams miss genuine holds.</p> <p>We usually ask clients to mark door-event windows on the same chart as product-zone probes. The product probe deeper in the chamber remains the decision signal; the dock probe becomes context. Compliance analytics packs then explain why a short spike near the door did not force a pallet hold — or why it did when dwell time stretched.</p> <p>Before you redesign thresholds, walk the dock during a busy hour. Time how long doors stay open when two trucks arrive together. Those minutes belong in your dashboard legend as much as in your SOP binder.</p>

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