Asset Health Index
Monitor your asset health with a composite score from 0 to 100 based on four sub-indices.
What is AHI
The Asset Health Index (AHI) is a score from 0 to 100 that summarizes the overall condition of an asset. It is calculated by combining four sub-indices with configurable weights, providing a single actionable view of equipment health.
Health grades
| Grade | Range | Meaning |
|---|---|---|
| A | 90 - 100 | Excellent — no action required |
| B | 70 - 89 | Good — normal monitoring |
| C | 50 - 69 | Acceptable — schedule inspection |
| D | 30 - 49 | Poor — priority maintenance |
| F | 0 - 29 | Critical — immediate intervention |
The grade is displayed with a color code on the dashboard: green (A/B), yellow (C), orange (D), and red (F).
Sub-indices
The AHI is composed of four sub-indices, each evaluating a different aspect:
1. Condition (40%)
Evaluates the state of monitored metrics against their baseline. Considers deviations reported by the condition monitoring system (L3).
2. Alarm Health (25%)
Analyzes recent alarm patterns:
- Alarm frequency in the last 24/48/72 hours.
- Ratio of critical vs. informational alarms.
- Average resolution time.
3. Maintenance Compliance (20%)
Measures maintenance plan adherence:
- Tasks completed on time vs. overdue tasks.
- Preventive plan compliance percentage.
- Pending corrective tasks.
4. Trend Stability (15%)
Evaluates the stability of metric trends:
- Linear regression slope.
- Coefficient of determination (R-squared).
- Rate of change per hour.
Calculation formula
AHI = (condition × 0.40) + (alarm_health × 0.25) +
(maintenance_compliance × 0.20) + (trend_stability × 0.15)Weights are configurable per organization. You can adjust them according to the relative importance of each factor for your operation.
Deterministic recommendations
Based on the AHI grade and the lowest sub-indices, the system generates automatic recommendations:
| Grade | Recommendation |
|---|---|
| A | Continue standard monitoring |
| B | Review trends at next inspection |
| C | Schedule detailed inspection within 7 days |
| D | Schedule corrective maintenance within 48 hours |
| F | Stop equipment and intervene immediately |
When a specific sub-index is below average, the recommendation focuses on that aspect. For example, if alarm_health is the lowest, the recommendation suggests reviewing active alarms and their root causes.
Health history
The system stores the last 30 snapshots of the AHI for each asset. This allows you to:
- Visualize health trends over time.
- Detect progressive degradation.
- Compare the impact of maintenance interventions.
Fleet view
The fleet view displays all assets sorted by AHI from worst to best (worst-first). This allows you to quickly identify assets that require priority attention.
| Column | Description |
|---|---|
| Asset | Name and code |
| AHI | Current score |
| Grade | Letter with color code |
| Trend | Arrow indicating improvement or deterioration |
| Last updated | Timestamp of last calculation |
The AHI is automatically recalculated when new data is available. If an asset lacks data for any of the sub-indices, that component is excluded and weights are redistributed proportionally.
Configurable weights
To adjust sub-index weights:
- Go to Settings > Asset Health.
- Modify the percentages for each sub-index.
- Weights must total 100%.
- Save changes. The AHI is recalculated for all assets.
Industrial Assets
Master registry of industrial equipment with hierarchy, criticality, location, and data source linking.
QR and NFC Tags
Generate QR or NFC tags to attach to every piece of plant equipment. Scanning them with a phone takes the technician directly to the asset profile with all its information.