Strainer differential pressure (kPa)
Observed range: 47.05–83.12 kPa. One-minute synthetic samples.
A second fictional pump shows rising strainer differential pressure, falling suction pressure, and comparatively stable bearing temperature. The scenario reports a manual shutdown at 14:35, rather than an automatic trip.
September 22, 2026 · 13:35–14:35
This is an authored demonstration of an evaluation approach, not a running AI copilot. It does not perform retrieval, model inference, or connect to equipment.
“P-206 sounds like it is pumping gravel and the discharge pressure is swinging. What is going on?”
Observed range: 47.05–83.12 kPa. One-minute synthetic samples.
Observed range: 1.15–2.37 bar. One-minute synthetic samples.
Observed range: 0.28–5.73 bar. One-minute synthetic samples.
Observed range: 63.36–64.47 °C. One-minute synthetic samples.
Each chart has its own labeled physical units. Dashed lines are illustrative references, not validated equipment limits. Samples and event context are synthetic.
The scripted evidence is consistent with suction restriction and possible cavitation. A blocked strainer is a hypothesis to investigate, not an established inspection finding. The signal pattern differs from the rising-temperature pattern in Scenario 1.
The first plotted strainer differential-pressure sample above 50 kPa is 50.11 kPa at 13:37; the peak is 83.12 kPa.
The first plotted suction sample below 1.8 bar is 1.79 bar at 14:13; the minimum is 1.15 bar.
Bearing temperature ranges from 63.36 to 64.47 °C. This distinguishes the plotted pattern; it does not rule out every bearing fault.
The supplied discharge series falls to 0.28 bar by 14:35 and begins declining before the stated shutdown. That timing needs reconciliation with an actual event log.
The reported sound and shutdown are authored scenario context, not independent measurements in the plotted dataset. Fluid temperature, pressure reference, pump requirements, and inspection evidence are absent. The original overdue-maintenance assertion was removed because its stated due date followed the event.
A plant engineer would reconcile the event timing and instrument readings, then review the suction system and equipment condition under approved site procedures. This example does not authorize inspection work or restart.
| t | suct | dp | disch | temp |
|---|---|---|---|---|
| 13:35 | 2.37 | 47.05 | 5.73 | 63.51 |
| 13:36 | 2.35 | 48.94 | 5.66 | 63.67 |
| 13:37 | 2.33 | 50.11 | 5.7 | 63.91 |
| 13:38 | 2.33 | 49.22 | 5.72 | 63.74 |
| 13:39 | 2.34 | 48.29 | 5.7 | 63.66 |
| 13:40 | 2.32 | 49.01 | 5.68 | 63.6 |
| 13:41 | 2.27 | 50.87 | 5.61 | 64.09 |
| 13:42 | 2.31 | 49.47 | 5.65 | 64.0 |
| 13:43 | 2.28 | 52.24 | 5.63 | 63.66 |
| 13:44 | 2.23 | 52.07 | 5.64 | 64.07 |
| 13:45 | 2.26 | 51.78 | 5.64 | 64.05 |
| 13:46 | 2.27 | 51.49 | 5.59 | 63.91 |
| 13:47 | 2.21 | 52.27 | 5.59 | 63.86 |
| 13:48 | 2.21 | 53.33 | 5.57 | 64.25 |
| 13:49 | 2.19 | 52.61 | 5.59 | 64.21 |
| 13:50 | 2.18 | 54.97 | 5.58 | 64.08 |
| 13:51 | 2.21 | 55.9 | 5.59 | 64.0 |
| 13:52 | 2.19 | 56.06 | 5.57 | 64.1 |
| 13:53 | 2.15 | 56.01 | 5.59 | 64.01 |
| 13:54 | 2.17 | 56.7 | 5.56 | 64.02 |
| 13:55 | 2.13 | 56.69 | 5.49 | 64.07 |
| 13:56 | 2.11 | 57.1 | 5.54 | 63.86 |
| 13:57 | 2.11 | 58.21 | 5.53 | 64.34 |
| 13:58 | 2.14 | 55.77 | 5.52 | 64.15 |
| 13:59 | 2.12 | 58.62 | 5.51 | 64.34 |
| 14:00 | 2.11 | 58.44 | 5.47 | 63.8 |
| 14:01 | 2.07 | 58.17 | 5.47 | 63.91 |
| 14:02 | 2.05 | 59.49 | 5.48 | 64.06 |
| 14:03 | 2.02 | 59.7 | 5.44 | 64.02 |
| 14:04 | 1.99 | 62.65 | 5.44 | 64.15 |
| 14:05 | 2.01 | 61.86 | 5.4 | 64.23 |
| 14:06 | 2.0 | 63.48 | 5.35 | 64.17 |
| 14:07 | 1.98 | 63.84 | 5.32 | 63.74 |
| 14:08 | 1.95 | 63.61 | 5.39 | 63.89 |
| 14:09 | 1.92 | 64.72 | 5.36 | 63.74 |
| 14:10 | 1.92 | 66.36 | 5.32 | 63.92 |
| 14:11 | 1.86 | 67.75 | 5.23 | 64.29 |
| 14:12 | 1.85 | 66.92 | 5.23 | 64.3 |
| 14:13 | 1.79 | 69.1 | 5.16 | 63.77 |
| 14:14 | 1.76 | 68.32 | 5.14 | 64.25 |
| 14:15 | 1.65 | 70.22 | 4.84 | 64.07 |
| 14:16 | 1.64 | 71.72 | 4.96 | 64.38 |
| 14:17 | 1.53 | 72.94 | 5.01 | 64.0 |
| 14:18 | 1.84 | 73.56 | 4.85 | 64.44 |
| 14:19 | 1.6 | 72.82 | 4.77 | 64.44 |
| 14:20 | 1.76 | 75.93 | 4.91 | 64.47 |
| 14:21 | 1.64 | 77.26 | 5.13 | 63.92 |
| 14:22 | 1.66 | 77.21 | 4.67 | 64.4 |
| 14:23 | 1.36 | 76.32 | 4.75 | 64.25 |
| 14:24 | 1.53 | 79.68 | 4.44 | 64.17 |
| 14:25 | 1.4 | 79.22 | 4.41 | 63.86 |
| 14:26 | 1.3 | 79.83 | 4.79 | 64.39 |
| 14:27 | 1.15 | 80.67 | 4.72 | 64.28 |
| 14:28 | 1.21 | 80.68 | 4.69 | 63.92 |
| 14:29 | 1.51 | 83.12 | 3.62 | 64.12 |
| 14:30 | 1.49 | 82.58 | 3.11 | 64.01 |
| 14:31 | 1.86 | 81.21 | 2.86 | 63.94 |
| 14:32 | 1.81 | 81.89 | 2.28 | 63.59 |
| 14:33 | 2.13 | 79.48 | 1.51 | 63.56 |
| 14:34 | 1.96 | 79.23 | 0.66 | 63.79 |
| 14:35 | 2.31 | 81.27 | 0.28 | 63.36 |
The temperature pattern is different, which makes the same explanation less supported by these samples. A normal-looking temperature trend alone does not conclusively exclude bearing faults.
The original HTML named manuals, maintenance histories, alarm CSVs, and SOP-07, but those files were not supplied. Their contents cannot be independently checked. These revised pages cite the embedded sample data and clearly distinguish it from authored event context.