EF-PUMP Professional
Engineering Forensic Analysis Report

ANALYSIS SUMMARY
Total records: 14
Valid records: 14
Invalid records: 0
Evaluated records: 14
Not evaluable records: 0
DIA-001 qualifying records: 6
DIA-001 non-qualifying records: 8
Temporal evidence records: 14

TEMPORAL STATE
Current state: NOT_PERSISTENT

ANALYTICAL CONFIGURATION
DIA-001 threshold: -10.0%
Required consecutive qualifying observations: 4
Required consecutive clearing observations: 3
Expected sampling interval: 0:15:00
Continuity tolerance: 0:00:05

SOURCE PROVENANCE
Source ID: EF-PUMP-PUBLIC-DEMO-C-CONSTRUCTED
Source file reference: sha256:68bba277469339c1965bb7207424fe81eebdd9589fb8e450a20a6dce2b087f64
Ingestion contract version: V1
Source record count: 14

REFERENCE PROVENANCE
Reference source: EF-PUMP Professional public DEMO-C constructed reference
Reference document: DEMO-C constructed demonstration reference
Reference date: 2026-08-03
Reference flow: 100.0
Reference head: 50.0
Reference power: 20.0
Reference speed: 1450.0

VALIDATION STATUS
sha256:9cc051c882c9dfd1db10a1463205c32f57eac2da9c0fb9ed5efc5b827c95ef6c: VALID
sha256:5fdc14eecf33968884d60c9a5c5be80273aaee01fd8c1e0b0d3926d65597c6ba: VALID
sha256:419ac17b2f8c41c58f96b0172d7cb5c383ed181df05988222bcd60549edbe2e0: VALID
sha256:702f4ab5ebf99acab3edf1747d9aca96192e0d2f15b15820fc570a6bc7a6b635: VALID
sha256:eb31ca3fa02d702a71a200725f4e53ffaafeeba5052720709047d84c764481b0: VALID
sha256:45c7f85575bdb7317f0c23e918efdd45592ef92536be2ad4e6e7e023e0bf11ee: VALID
sha256:c1c5ceb81bc0450f1ed9b95e2c20a60f1494001029433721cf29feea4188bfbe: VALID
sha256:56d858370c318b03519af3870325c981889d1e286c3a83e616edb8550fb2cd36: VALID
sha256:4ccfd73b8f4848fa595b4c2671113a969fefdd583c0c9f1498560ab35f2ebd16: VALID
sha256:c495272ae2c5b533b44c269bd76ff9e8e4e3612440289f12d9a431f9b484bf69: VALID
sha256:a4d68a75d415bfaaf6dc7ea8674740fa20879a54fe8d00065b8caff79849cc2f: VALID
sha256:83f1707dd0a98d3195811399b3e32b9f4fa25a3bfb2d59313c1cd490fb79a511: VALID
sha256:fe5a7c735a26dc99b8761a7f64d553a837311e0aa1d12f21e137565ed9b267d6: VALID
sha256:7285864bbeb8f370396ddf236e40a582fbb5d7b04bccd00a377b458386ae1d12: VALID

DIA-001 DIAGNOSTIC EVALUATION
sha256:9cc051c882c9dfd1db10a1463205c32f57eac2da9c0fb9ed5efc5b827c95ef6c: NON-QUALIFYING
  Observed head: 49.8641228146207
  Reference head: 50.0
  Deviation: -0.2717543707586003%
  Threshold: -10.0%
sha256:5fdc14eecf33968884d60c9a5c5be80273aaee01fd8c1e0b0d3926d65597c6ba: NON-QUALIFYING
  Observed head: 50.06806605721628
  Reference head: 50.0
  Deviation: 0.1361321144325558%
  Threshold: -10.0%
sha256:419ac17b2f8c41c58f96b0172d7cb5c383ed181df05988222bcd60549edbe2e0: NON-QUALIFYING
  Observed head: 49.66017957202511
  Reference head: 50.0
  Deviation: -0.6796408559497849%
  Threshold: -10.0%
sha256:702f4ab5ebf99acab3edf1747d9aca96192e0d2f15b15820fc570a6bc7a6b635: NON-QUALIFYING
  Observed head: 50.37398092110966
  Reference head: 50.0
  Deviation: 0.7479618422193255%
  Threshold: -10.0%
sha256:eb31ca3fa02d702a71a200725f4e53ffaafeeba5052720709047d84c764481b0: QUALIFYING
  Observed head: 44.0517404006465
  Reference head: 50.0
  Deviation: -11.896519198706997%
  Threshold: -10.0%
  DIA-001 | Severity: WARNING | Hydraulic head reduction relative to applicable reference evidence satisfies the configured threshold.
sha256:45c7f85575bdb7317f0c23e918efdd45592ef92536be2ad4e6e7e023e0bf11ee: QUALIFYING
  Observed head: 44.0517404006465
  Reference head: 50.0
  Deviation: -11.896519198706997%
  Threshold: -10.0%
  DIA-001 | Severity: WARNING | Hydraulic head reduction relative to applicable reference evidence satisfies the configured threshold.
sha256:c1c5ceb81bc0450f1ed9b95e2c20a60f1494001029433721cf29feea4188bfbe: QUALIFYING
  Observed head: 44.051740400646494
  Reference head: 50.0
  Deviation: -11.896519198707011%
  Threshold: -10.0%
  DIA-001 | Severity: WARNING | Hydraulic head reduction relative to applicable reference evidence satisfies the configured threshold.
sha256:56d858370c318b03519af3870325c981889d1e286c3a83e616edb8550fb2cd36: QUALIFYING
  Observed head: 43.84779715805092
  Reference head: 50.0
  Deviation: -12.304405683898153%
  Threshold: -10.0%
  DIA-001 | Severity: WARNING | Hydraulic head reduction relative to applicable reference evidence satisfies the configured threshold.
sha256:4ccfd73b8f4848fa595b4c2671113a969fefdd583c0c9f1498560ab35f2ebd16: QUALIFYING
  Observed head: 44.153712021944294
  Reference head: 50.0
  Deviation: -11.692575956111412%
  Threshold: -10.0%
  DIA-001 | Severity: WARNING | Hydraulic head reduction relative to applicable reference evidence satisfies the configured threshold.
sha256:c495272ae2c5b533b44c269bd76ff9e8e4e3612440289f12d9a431f9b484bf69: QUALIFYING
  Observed head: 43.847797158050916
  Reference head: 50.0
  Deviation: -12.304405683898167%
  Threshold: -10.0%
  DIA-001 | Severity: WARNING | Hydraulic head reduction relative to applicable reference evidence satisfies the configured threshold.
sha256:a4d68a75d415bfaaf6dc7ea8674740fa20879a54fe8d00065b8caff79849cc2f: NON-QUALIFYING
  Observed head: 49.8641228146207
  Reference head: 50.0
  Deviation: -0.2717543707586003%
  Threshold: -10.0%
sha256:83f1707dd0a98d3195811399b3e32b9f4fa25a3bfb2d59313c1cd490fb79a511: NON-QUALIFYING
  Observed head: 50.17003767851407
  Reference head: 50.0
  Deviation: 0.34007535702814096%
  Threshold: -10.0%
sha256:fe5a7c735a26dc99b8761a7f64d553a837311e0aa1d12f21e137565ed9b267d6: NON-QUALIFYING
  Observed head: 49.7621511933229
  Reference head: 50.0
  Deviation: -0.47569761335419963%
  Threshold: -10.0%
sha256:7285864bbeb8f370396ddf236e40a582fbb5d7b04bccd00a377b458386ae1d12: NON-QUALIFYING
  Observed head: 50.06806605721628
  Reference head: 50.0
  Deviation: 0.1361321144325558%
  Threshold: -10.0%

EXPERT DIAGNOSTIC INTERPRETATION
Rule: DIA-001
Condition: Pump head is reduced relative to the applicable reference condition.

Engineering meaning:
A persistent episode was previously established and has since cleared. The measured operating condition indicates that the pump is developing less head than the applicable reference condition. When the diagnostic condition persists across the configured observation sequence, the reduction should be treated as an operating-performance deviation rather than an isolated reading.

Possible causes:
1. Pump rotational speed is lower than the reference or intended operating speed.
2. The pump operating point has shifted relative to the reference condition because system resistance or flow demand has changed.
3. Suction conditions may be degrading hydraulic performance, including insufficient suction pressure, excessive suction losses, gas entrainment, or cavitation-related conditions.
4. Internal pump wear or increased internal recirculation may be reducing developed head.
5. Impeller condition or effective impeller diameter may differ from the reference condition because of wear, damage, fouling, modification, or incorrect configuration.
6. A restriction, valve position, bypass condition, leakage path, or other system configuration difference may be affecting the observed operating point.
7. Instrumentation or reference-data error may be contributing to the apparent deviation.

Recommended checks:
1. Confirm that the reference data represents the same pump, configuration, impeller condition, and intended operating basis.
2. Compare measured rotational speed with the reference speed and verify speed measurement accuracy.
3. Review flow rate together with suction and discharge pressures to determine whether the operating point has shifted.
4. Inspect suction conditions for abnormal pressure loss, blocked strainers or piping, inadequate liquid level, air ingress, gas entrainment, or evidence consistent with cavitation.
5. Verify relevant valve positions, bypass paths, control settings, and system configuration.
6. Check pressure, flow, and speed instrumentation for calibration, installation, scaling, and data-entry errors.
7. If the external operating conditions and instrumentation are verified, inspect the pump for hydraulic wear, internal recirculation, impeller damage, fouling, or configuration differences.
8. Compare the condition with previous measurements or trend data to determine whether the deviation is stable, progressive, intermittent, or associated with a recent system change.

Operational significance:
A persistent episode was previously established and has since cleared. Persistent head reduction can indicate degraded pump performance or a changed system operating condition. The significance depends on the magnitude and persistence of the deviation, process requirements, available operating margin, and the cause established by follow-up checks.

Diagnostic limitation:
DIA-001 identifies a head-reduction condition; it does not by itself establish a unique root cause. The possible causes above are engineering hypotheses to be discriminated using operating context, additional measurements, inspection, maintenance history, and instrument verification.

RECORD TRACEABILITY
sha256:9cc051c882c9dfd1db10a1463205c32f57eac2da9c0fb9ed5efc5b827c95ef6c: EVALUATED - NON-QUALIFYING
sha256:5fdc14eecf33968884d60c9a5c5be80273aaee01fd8c1e0b0d3926d65597c6ba: EVALUATED - NON-QUALIFYING
sha256:419ac17b2f8c41c58f96b0172d7cb5c383ed181df05988222bcd60549edbe2e0: EVALUATED - NON-QUALIFYING
sha256:702f4ab5ebf99acab3edf1747d9aca96192e0d2f15b15820fc570a6bc7a6b635: EVALUATED - NON-QUALIFYING
sha256:eb31ca3fa02d702a71a200725f4e53ffaafeeba5052720709047d84c764481b0: EVALUATED - QUALIFYING
sha256:45c7f85575bdb7317f0c23e918efdd45592ef92536be2ad4e6e7e023e0bf11ee: EVALUATED - QUALIFYING
sha256:c1c5ceb81bc0450f1ed9b95e2c20a60f1494001029433721cf29feea4188bfbe: EVALUATED - QUALIFYING
sha256:56d858370c318b03519af3870325c981889d1e286c3a83e616edb8550fb2cd36: EVALUATED - QUALIFYING
sha256:4ccfd73b8f4848fa595b4c2671113a969fefdd583c0c9f1498560ab35f2ebd16: EVALUATED - QUALIFYING
sha256:c495272ae2c5b533b44c269bd76ff9e8e4e3612440289f12d9a431f9b484bf69: EVALUATED - QUALIFYING
sha256:a4d68a75d415bfaaf6dc7ea8674740fa20879a54fe8d00065b8caff79849cc2f: EVALUATED - NON-QUALIFYING
sha256:83f1707dd0a98d3195811399b3e32b9f4fa25a3bfb2d59313c1cd490fb79a511: EVALUATED - NON-QUALIFYING
sha256:fe5a7c735a26dc99b8761a7f64d553a837311e0aa1d12f21e137565ed9b267d6: EVALUATED - NON-QUALIFYING
sha256:7285864bbeb8f370396ddf236e40a582fbb5d7b04bccd00a377b458386ae1d12: EVALUATED - NON-QUALIFYING

DIAGNOSTIC EPISODES
episode:052b04a74f5ce99bad9e6b99dd01570498e4bb5d86197b952753dd021ac7cd0d | Rule: DIA-001 | Status: CLOSED
  Assertion timestamp: 2026-08-03T09:45:00
  Assertion supporting record: sha256:eb31ca3fa02d702a71a200725f4e53ffaafeeba5052720709047d84c764481b0
  Assertion supporting record: sha256:45c7f85575bdb7317f0c23e918efdd45592ef92536be2ad4e6e7e023e0bf11ee
  Assertion supporting record: sha256:c1c5ceb81bc0450f1ed9b95e2c20a60f1494001029433721cf29feea4188bfbe
  Assertion supporting record: sha256:56d858370c318b03519af3870325c981889d1e286c3a83e616edb8550fb2cd36
  Clearing timestamp: 2026-08-03T11:00:00
  Clearing supporting record: sha256:a4d68a75d415bfaaf6dc7ea8674740fa20879a54fe8d00065b8caff79849cc2f
  Clearing supporting record: sha256:83f1707dd0a98d3195811399b3e32b9f4fa25a3bfb2d59313c1cd490fb79a511
  Clearing supporting record: sha256:fe5a7c735a26dc99b8761a7f64d553a837311e0aa1d12f21e137565ed9b267d6

TEMPORAL TRANSITIONS
ASSERTED | Rule: DIA-001 | Episode: episode:052b04a74f5ce99bad9e6b99dd01570498e4bb5d86197b952753dd021ac7cd0d | Timestamp: 2026-08-03T09:45:00
  Supporting record: sha256:eb31ca3fa02d702a71a200725f4e53ffaafeeba5052720709047d84c764481b0
  Supporting record: sha256:45c7f85575bdb7317f0c23e918efdd45592ef92536be2ad4e6e7e023e0bf11ee
  Supporting record: sha256:c1c5ceb81bc0450f1ed9b95e2c20a60f1494001029433721cf29feea4188bfbe
  Supporting record: sha256:56d858370c318b03519af3870325c981889d1e286c3a83e616edb8550fb2cd36
CLEARED | Rule: DIA-001 | Episode: episode:052b04a74f5ce99bad9e6b99dd01570498e4bb5d86197b952753dd021ac7cd0d | Timestamp: 2026-08-03T11:00:00
  Supporting record: sha256:a4d68a75d415bfaaf6dc7ea8674740fa20879a54fe8d00065b8caff79849cc2f
  Supporting record: sha256:83f1707dd0a98d3195811399b3e32b9f4fa25a3bfb2d59313c1cd490fb79a511
  Supporting record: sha256:fe5a7c735a26dc99b8761a7f64d553a837311e0aa1d12f21e137565ed9b267d6