Cold Chain Data Logger Dashboard

Key Performance Indicators

Avg Time to -20°C

67 min

9/9 loggers (pre-cooled group)

Avg Time to -25°C

280 min

pre-cooled group

Avg Min Temp

-30.8°C

target -29°C (overshoot)

Hold ≤ -28°C

262 min

unit ON phase (4.4 hr)

Cold Chain ≤ -20°C

3708 min

61.8 hr total

Spatial σ

2.32°C

plateau uniformity

First -20°C breach: 2026-10-04 03:15:00 (Logger 7 — Right Wall Rear)

Insight: Box di-pre-cool dan loading di MKS 1 Okt 16:40. Unit ON selama ~1.6 hari (hold ≤-28°C 4 jam, min temp -30.8°C), lalu OFF ~3 Okt 08:00 dan passive warmup 99 jam sampai unloading 7 Okt 08:30. Cold chain ≤-20°C bertahan 62 jam total. Tidak ada door event signifikan terdeteksi selain unloading terakhir — rute MKS-SBY ini bersih, tidak ada buka pintu di tengah perjalanan.

Chart 1 — All Loggers Temperature

Insight: Dua populasi start: 9 logger wall mulai di -1 s/d -2°C (sudah pre-cooled di dalam box), 4 logger Top Of Goods (L9, L12, L16, L21) mulai di +30 s/d +33°C (baru ditaruh di atas barang saat loading). Setelah pull-down, semua konvergen ke -30°C sebelum unit dimatiikan ~3 Okt 08:00.

Chart 2 — Cross-Logger Spread

Insight: Cross-logger range 4–6°C saat pull-down (normal, Top Of Goods masih panas), menyempit ke ~4.4°C saat plateau. Setelah unit OFF range melebar lagi ke 8–12°C — sirkulasi passive tidak merata, Top Of Goods tetap paling hangat.

Chart 3 — Per-Logger Metrics

Insight: 4 logger Top Of Goods (abu-abu) time-to-20 jauh lebih besar (3–4 jam) karena mulai dari ambient. Time-to-25 untuk pre-cooled group 7–8 jam. Min temp semua logger di bawah -28°C — box dingin merata.

Chart 4 — Spatial Map Over Time

Insight: Tekan Play. Saat loading (1 Okt 16:40), Top Of Goods masih merah/oranye (panas) sementara wall sudah biru. Pull-down selesai ~2 Okt 12:00 — semua biru. Setelah 3 Okt 08:00 box menghangat perlahan, paling cepat di Top Of Goods.

Chart 5 — Full Timeline

Event Timeline

Time	Event	Status

Insight: Tidak ada door event terdeteksi di tengah perjalanan. Satu-satunya event sharp-rise adalah unloading final di 7 Okt ~08:00 (mean naik +5°C dalam 30 menit). Kalau lu tahu ada buka pintu di tengah (misal istirahat sopir), kasih tau gw waktu-nya — gw add sebagai manual door event.

Per-Logger Summary

Logger	Position	Section	Slot	Min Temp	Hold ≤-28	Cold Chain
L2	Left Wall Rear	Left Wall	Rear	-29.6°C	3 min	59 hr
L5	Mid Cabin Front	Mid Cabin	Front	-33.3°C	2277 min	66 hr
L7	Right Wall Rear	Right Wall	Rear	-29.0°C	9 min	56 hr
L8	Right Wall Front	Right Wall	Front	-31.3°C	12 min	62 hr
L9	Top Of Goods	Top Of Goods	Top	-29.9°C	3 min	66 hr
L11	Mid Cabin Mid	Mid Cabin	Mid	-32.2°C	21 min	65 hr
L12	Top Of Goods	Top Of Goods	Top	-28.4°C	537 min	72 hr
L15	Mid Cabin Rear	Mid Cabin	Rear	-29.8°C	12 min	60 hr
L16	Top Of Goods	Top Of Goods	Top	-32.7°C	2043 min	70 hr
L19	Left Wall Mid	Left Wall	Mid	-30.7°C	12 min	62 hr
L20	Right Wall Mid	Right Wall	Mid	-30.4°C	6 min	62 hr
L21	Top Of Goods	Top Of Goods	Top	-28.2°C	9 min	64 hr
L27	Left Wall Front	Left Wall	Front	-31.1°C	9 min	62 hr

Insight: Top Of Goods (L9, L12, L16, L21) exclude dari AVERAGE karena start population berbeda (ambient vs pre-cooled). Semua logger valid — tidak ada recording failure di run ini.

Glossary

Term	Definition
Logger	RC-5 temperature data logger, 3-min interval
Pre-cooled group	9 loggers di wall + mid cabin, mulai -1 s/d -2°C — sudah di dalam box saat pre-cool
Ambient-start group	L9, L12, L16, L21 (Top Of Goods) — ditaruh di atas barang saat loading, mulai +30 s/d +33°C
Plug/unplug	Unit ON (pull-down + plateau) / OFF (passive warmup). This run: ON 1 Okt → 3 Okt 08:00, OFF after
Time to -X°C	Minutes from start until first reading ≤ -X
Hold ≤ -28°C	Full plateau length (target -29 + 1 tolerance)
Cold Chain	Total duration ≤ -20°C
Breach	First time temp exceeds -20°C after having been below it
Door event (detected)	Cross-mean rises ≥3°C at ≥0.30°C/min. Passive warmup is only ~1°C/h so a sharp rise can only be a door

Cold Chain Data Logger Dashboard — Run 5