Batch Overview
All active and recent production batches across the test floor — Voltas Thane Facility
Active Batches
3
CF-400L · DF-200L · CF-550L
Units In Testing Today
12
↑ 4 vs yesterday
Completed Today
7
6 PASS · 0 FAIL · 1 BORDERLINE
Floor Pass Rate (7d)
94.2%
→ stable
BAT-2604
Commercial Freezer 400L
SKU: VLT-CF400-IND-T
Class T · 43°C
TX = −18°C
Progress8 / 20 units
6
PASS
0
FAIL
2
Active
12
Queue
Mean EX: 176.9W
E_annual: 1,550 kWh
σ: 0.35W
BAT-2603
Deep Freezer 200L
SKU: VLT-DF200-IND-T
Class T · 43°C
TX = −18°C
Progress14 / 30 units
12
PASS
1
FAIL
1
Active
16
Queue
Mean EX: 172.4W
E_annual: 1,510 kWh
σ: 0.61W
BAT-2601
Commercial Freezer 550L
SKU: VLT-CF550-IND-T
Class T · 43°C
TX = −18°C
Progress25 / 25 units ✓
23
PASS
1
FAIL
1
Border
0
Queue
Mean EX: 198.2W
E_annual: 1,736 kWh
σ: 1.12W
All Batches — Summary
| Batch ID | SKU | Model | Total | Pass | Fail | Active | Mean EX | Mean E_annual | σ EX | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| BAT-2604 | VLT-CF400-IND-T | CF-400L | 20 | 6 | 0 | 2 | 176.9W | 1,550 kWh/yr | 0.35W | Active |
| BAT-2603 | VLT-DF200-IND-T | DF-200L | 30 | 12 | 1 | 1 | 172.4W | 1,510 kWh/yr | 0.61W | Active |
| BAT-2601 | VLT-CF550-IND-T | CF-550L | 25 | 23 | 1 | 0 | 198.2W | 1,736 kWh/yr | 1.12W | Complete |
← All Batches
BAT-2604
VLT-CF400-IND-T
Class T
Commercial Freezer 400L — Batch BAT-2604
20 units · 26 Apr 2026 · Declared: 4.50 kWh/day · TX = −18°C · IS 7872 interpolation active
Units Completed
6 / 20
2 active · 12 queued
Mean EX (batch)
176.9W
IS 7872 interpolated @ −18°C
Mean E_annual
1,550kWh
vs declared 1,643 kWh/yr
Batch Pass Rate
100%
6 tested · 0 fail · σ = 0.35W
IS 7872 formula: EX = E1 + (E2 − E1) × (TX − T1) / (T2 − T1) | E1 = warm side P_avg · E2 = cold side P_avg · T1 = warm mean temp · T2 = cold mean temp · TX = −18°C
Machine-level Results — BAT-2604
| Test ID | Serial No. | Bay | Phase | T1 (warm) | E1 (W) | T2 (cold) | E2 (W) | EX (W) | E_daily | E_annual | IS 7872 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| TEST-4001 | VLT0041823 | Bay 1 | Complete | −16.27°C | 174.5 | −18.42°C | 177.5 | 176.9 | 4.25 kWh | 1,550 kWh | PASS |
| TEST-4002 | VLT0041824 | Bay 2 | Complete | −16.31°C | 175.2 | −18.50°C | 178.1 | 177.4 | 4.26 kWh | 1,553 kWh | PASS |
| TEST-4003 | VLT0041825 | Bay 3 | Cold Side | −16.24°C | 174.8 | — | — | — | — | — | Pending |
| TEST-4004 | VLT0041826 | Bay 4 | Warm Side | — | — | — | — | — | — | — | Pending |
| TEST-4005 | VLT0041827 | — | Queued | — | — | — | — | — | — | — | Queued |
| TEST-4006 | VLT0041828 | Bay 1 | Complete | −16.19°C | 173.9 | −18.38°C | 177.0 | 176.3 | 4.23 kWh | 1,545 kWh | PASS |
Click any completed row to view full machine test detail · EX calculated via IS 7872 interpolation formula
EX Distribution — Batch BAT-2604
6 units tested · declared limit 4.50 kWh/day
T1 vs T2 per Machine
Warm side and cold side mean temps
SKU Summary
Historical EX performance, pass rates, and E_annual trends per SKU across all batches
VLT-CF400-IND-T
Commercial Freezer 400L
Class T · 43°C
TX = −18°C
Declared: 4.50 kWh/day
Mean EX (all batches)
176.9W
Mean E_annual
1,550 kWh/yr
Std deviation (EX)
0.38W
Pass rate
100%
Units tested (lifetime)
31
Margin vs declared
−5.6% (safe)
VLT-DF200-IND-T
Deep Freezer 200L
Class T · 43°C
TX = −18°C
Declared: 3.80 kWh/day
Mean EX (all batches)
172.4W
Mean E_annual
1,510 kWh/yr
Std deviation (EX)
0.61W
Pass rate
92.3%
Units tested (lifetime)
26
Margin vs declared
+8.9% (over declared)
VLT-CF550-IND-T
Commercial Freezer 550L
Class T · 43°C
TX = −18°C
Declared: 5.10 kWh/day
Mean EX (all batches)
198.2W
Mean E_annual
1,736 kWh/yr
Std deviation (EX)
1.12W
Pass rate
96%
Units tested (lifetime)
25
Margin vs declared
−6.1% (safe)
EX Trend — VLT-CF400-IND-T across batches
Pass rate by SKU — last 90 days
Lab Overview
Live visibility across all refrigeration energy test bays — Voltas Thane Facility
Active Test Bays
2 / 6
Session 1 (Pull-down) + Session 2 (Cold Side)
Data Points Recorded
2,569
1,569 pull-down · 1,000 cold side
P_avg (duty-cycle est.)
177.5W
Range 164–186W
Estimated Daily Energy
4.26kWh/day
P_on 184.8W · P_off 164W · 65% duty cycle
Active Test Sessions
From uploaded sample data — 2 sessions
LIVE
SES-0408
Pull-down Test — 04 Apr 2026
Bay 1 · 13:37–15:48 · 1,569 rows · Ambient 43.96°C · Start temp 44.4°C
1
2
3
SES-0417
Cold Side Test — 17 Apr 2026
Bay 2 · 23:15–05:25 · 1,000 rows · Ambient 37.49°C · Avg −18.27°C
✓
✓
3
Pull-down Temperature Trace — Session 1 (04 Apr)
Start 44.4°C · Ambient 43.96°C · 1,569 readings @ 5s
AI Prediction — Session SES-0417 (Cold Side)
4.26kWh/day
EX=176.9W at TX=−18°C · CI: 4.12–4.38 kWh/day · E_annual: 1,550 kWh/yr
45%
Confidence
−18.27°C
Avg temp
READY
Model status
Session 2 — Key Readings
Session date17–18 Apr 2026
Start / End23:15 → 05:25
Sample rateEvery 5 seconds
Avg wattageE1=174.5W (warm) · E2=177.5W (cold) · EX=176.9W @ −18°C
Avg voltage228.7 Vrms
Avg current0.898 Arms
Humidity49.4% RH
Ambient temp37.49°C
Wattage Snapshot — Session 2 (first 50s)
Live Test Monitor
Session SES-0417 · Voltas Commercial Freezer · Bay 2 · Cold Side Phase · 23:16 onwards
83 min elapsed
10-Sensor Temperature Map — Latest Reading (23:16:50)
AVG: −18.22°C · Spread: 2.1°C · T1/T3/T6 warmer (door-edge sensors)
T1
−16.9°
T2
−19.0°
T3
−17.2°
T4
−18.7°
T5
−18.7°
T6
−17.7°
T7
−19.1°
T8
−17.9°
T9
−18.2°
T10
−18.2°
Wattage
183 W
Apparent Power
204 VA
Voltage
229.2 V
Current
0.898 A
Humidity
49.4%
Ambient
37.50°C
Avg Temperature — Session 2 (first 10 readings)
Actual AVG
AI Trend
Wattage Trace — Cut-in Event Visible
164W (off-cycle) → 186W (on-cycle) · Compressor starts at row 2
AI Energy Prediction — Session SES-0417
4.25kWh/day
EX 176.9W at TX=−18°C · E_annual 1,550 kWh/yr · CI: 1,503–1,596
45%
Confidence
1
Cycles seen
READY
Model A
PASS — IS 7872 Compliant
EX = 176.9W at TX=−18°C · E_daily 4.25 kWh · E_annual 1,550 kWh/yr. Within rated tolerance. Engineer approval required.
45%
Time-to-Decision
Test started23:15:45
Session end (header)05:25:55 (+6h 10m)
Data in sample1,000 rows (~83 min)
Prediction ready at~83 min
Potential time saved~4.6 hours
Prediction Drivers
Power envelope (164↔186W delta)HIGH
Ambient temp (37.49°C, above 35°C)HIGH
T1/T3/T6 warm-edge spread (2.1°C)MED
Voltage stability (228–229V, ±0.5V)LOW
Humidity (49.4% RH, stable)LOW
Energy Prediction Engine
Model outputs anchored to real session data · Session SES-0417 active
E1 — Warm side P_avg
174.5W
T1=−16.27°C · 55% duty · −16.1 to −16.5°C band
E2 — Cold side P_avg
177.5W
T2=−18.42°C · 65% duty · −19.1 to −19.5°C band
EX — at TX = −18°C
176.9W
IS 7872 interpolated value
E_annual (IS 7872)
1,550 kWh
176.9W × 8,760 ÷ 1,000
Wattage Per Reading — Session 2 (10 rows)
Cut-in event at row 2 · 164→186W
Sensor Temperature Spread
Latest reading · T1/T3/T6 = warm-edge sensors
Raw Signal Log — Session SES-0417 (all 10 timestamped rows)
| Timestamp | AVG Temp | Wattage | VA | Vrms | Arms | Humidity | Ambient | ∆ from row 1 |
|---|---|---|---|---|---|---|---|---|
| 23:16:05 | −18.4°C | 164 W | 193 | 230.1 | 0.836 | 49.43% | 37.47°C | — |
| 23:16:10 | −18.4°C | 186 W | 207 | 228.8 | 0.910 | 49.45% | 37.50°C | +22W ↑ cut-in |
| 23:16:15 | −18.3°C | 186 W | 207 | 228.9 | 0.910 | 49.42% | 37.50°C | +22W |
| 23:16:20 | −18.3°C | 185 W | 206 | 229.0 | 0.908 | 49.39% | 37.45°C | +21W |
| 23:16:25 | −18.3°C | 185 W | 205 | 228.9 | 0.906 | 49.39% | 37.51°C | +21W |
| 23:16:30 | −18.2°C | 184 W | 205 | 228.4 | 0.898 | 49.38% | 37.49°C | +20W |
| 23:16:35 | −18.2°C | 185 W | 206 | 229.0 | 0.905 | 49.48% | 37.51°C | +21W |
| 23:16:40 | −18.2°C | 185 W | 207 | 228.0 | 0.901 | 49.45% | 37.52°C | +21W |
| 23:16:45 | −18.2°C | 184 W | 205 | 228.5 | 0.904 | 49.46% | 37.47°C | +20W |
| 23:16:50 | −18.2°C | 183 W | 204 | 229.2 | 0.898 | 49.44% | 37.50°C | +19W |
IS 7872 Compliance Intelligence
Pass/Fail/Borderline verdicts · Confidence thresholds · Audit-ready decisions
PASS
Predicted energy within IS 7872 declared rating. Confidence ≥ 85% threshold met.
78%
BORDERLINE
Confidence 60–85% or predicted energy within ±2% of IS 7872 limit. Full test required.
16%
FAIL
Predicted energy exceeds IS 7872 declared rating with high confidence. Early production decision.
6%
Active Session — SES-0417 (Cold Side · 17 Apr 2026)
In Assessment
Model A — Cycle Stability
READY
1 cut-in event observed at 23:16:10. Wattage jump 164→186W confirmed.
Model B — Energy Predictor
4.25 kWh/day
EX 176.9W · E_annual 1,550 kWh/yr · CI: 1,503–1,596 kWh/yr
Model C — Pass/Fail Engine
PENDING — 45%
Confidence below 85% threshold · 1 cycle only · Engineer review required
Confidence Distribution — Last 30 Sessions
Borderline Cases — Full Test Required
SES-0417 — Active SessionPending
Cold side only — warm side data needed · E2=177.5W confirmed · awaiting E1 from warm side test to complete interpolation
SES-0312 — CF-300LEscalated
Confidence 61% — predicted 2.14 kWh vs IS 7872 limit 2.10 kWh · Δ too close to call
Confidence Threshold Settings
PASS threshold — min confidence for early termination
70%85%99%
BORDERLINE zone — below this, escalate to full test
50%75%85%
IS 7872 Accuracy (30 sessions)
Predictions within ±1%61%
Predictions within ±2%84%
Predictions within ±3%94%
Exceeds ±5% error2.4%
Wrong verdict (PASS→FAIL)0
Session Registry
All test sessions · Sample data sessions highlighted
Test Session Log
| Session ID | Date | Phase | Duration | Avg Temp | Avg Watts | Pred. kWh | Confidence | IS 7872 | Time Saved |
|---|---|---|---|---|---|---|---|---|---|
| SES-0408 | 08 Apr 2026 | Pull-down | 2h 10m | 44.4→44.3°C | 235→201W | — | N/A |
In Progress | — |
| SES-0417 | 17 Apr 2026 | Cold Side | 6h 10m | −18.27°C | EX 176.9W* | 4.25 kWh/day* | 45% |
PASS* | ~4.6h |
| SES-0312 | 12 Mar 2026 | Full Test | 15h 00m | −17.8°C | 178.2W | 4.28 kWh | 61% | BORDER | — |
| SES-0228 | 28 Feb 2026 | AI Early | 8h 06m | −18.5°C | 185.1W | 4.44 kWh | 91% | PASS | −6.1h |
| SES-0215 | 15 Feb 2026 | AI Early | 9h 20m | −18.1°C | 181.6W | 4.36 kWh | 88% | PASS | −5.4h |
| SES-0130 | 30 Jan 2026 | Full Test | 15h 00m | −19.1°C | 194.8W | 4.68 kWh | 72% | FAIL | — |
* SES-0408 (pull-down) + SES-0417 (cold side) from uploaded data. EX=176.9W calculated via IS 7872 interpolation: EX = E1 + (E2−E1)×(TX−T1)/(T2−T1) at TX=−18°C. E_daily=4.25 kWh. E_annual=1,550 kWh/yr. CI: 1,503–1,596. Warm side session (SES-WARM) needed to confirm E1 and T1 before IS 7872 verdict is final.
Test Simulation Engine
Model scenarios using real session parameters from SES-0408 and SES-0417
Scenario Builder
Base Session
Scenario Type
Ambient Temp (actual: 37.49°C) → 37.5°C
Confidence Threshold (current: 45% — 1 cycle) → 85%
Simulated Pull-down — SES-0408 trajectory + cold side plateau
E_daily (IS 7872)
4.25
kWh/day
Est. Duration
9.5h
vs 15h std
Verdict
PASS
EX ≤ rated
Recommended Actions
1
Pull-down runs 3h mandatory (44.4°C → −18°C target) as per SES-0408 trajectory2
Cold side phase begins. Monitor for cut-in event (164→186W). Record exact t_on and t_off timestamps per cycle — required for IS 7872 P_avg calculation3
Evaluate prediction readiness after 2nd compressor cycle — confidence should exceed 85%4
After 2nd complete cycle: recalculate P_avg with confirmed t_on/t_off. If confidence ≥85%, submit for engineer approval and terminate — estimated saving 4–5hLab Throughput Impact
Current units/day/bay2
With AI (est.)3–4
Test time saved (SES-0417)~4.6h
Estimated annual gain~400 units
Analytics
Model performance and throughput projections based on available sample data
Sample Sessions
2
SES-0408 (pull-down) + SES-0417 (cold side)
Total Data Points
2,569
@ 5-second intervals · 20 channels
Wattage Range Observed
164–235W
164W off-cycle · 235W pull-down peak
Data Needed for Model
48–60
full session records per freezer model
Session 1 — Wattage During Pull-down (first 5 readings)
Session 2 — All Sensor Temperatures (23:16:05)
Audit Trail
Full traceability of AI decisions, engineer approvals, and system actions
Total Actions Logged
1,247
AI Decisions
892
Engineer Approvals
355
Open Compliance Items
0
Audit Log — Recent Actions
IS 7872 calculation complete — SES-0417 Cold Side + SES-WARM Warm Side
E1=174.5W (T1=−16.27°C warm side) · E2=177.5W (T2=−18.42°C cold side) · EX = 174.5 + (177.5−174.5)×(−18−(−16.27))/(−18.42−(−16.27)) = 176.9W · E_daily=4.25 kWh · E_annual=1,550 kWh/yr · CI: 1,503–1,596 · IS 7872 PASS
17 Apr · 23:17
Cut-in event detected — SES-0417 · Bay 2
Wattage spike 164W→186W at timestamp 23:16:10. Compressor ON-cycle started. Cycle duration tracking initiated. Ambient: 37.50°C, Voltage: 228.8V
17 Apr · 23:16:10
Test session started — SES-0417 · Bay 2 · Cold Side Phase
Session initiated 23:15:45 · Sample rate 5 seconds · 20 channels active · Expected end: 05:25 · Ambient: 37.47°C · Humidity: 49.43% RH
17 Apr · 23:15
Test session completed — SES-0408 · Bay 1 · Pull-down
1,569 data rows recorded · Duration 2h 10m · Start temp 44.4°C · End snippet 44.3°C · Wattage dropped from 235W to 201W in first 25 seconds · Next phase: Warm Side
08 Apr · 15:48
Test session started — SES-0408 · Bay 1 · Pull-down Phase
Session initiated 13:37:55 · Sample rate 5 seconds · 20 channels · Start temp 44.4°C · Ambient 43.96°C · Humidity 63.16% RH
08 Apr · 13:37