EF-PUMP Professional
Engineering Forensic Analysis Report

ANALYSIS SUMMARY
Total records: 10
Valid records: 10
Invalid records: 0
Evaluated records: 10
Not evaluable records: 0
DIA-001 qualifying records: 6
DIA-001 non-qualifying records: 4
Temporal evidence records: 10

TEMPORAL STATE
Current state: 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-B-CONSTRUCTED
Source file reference: sha256:7327826f178cb85f3e891fcb15ec4be7909519171456257f09974f1050265ecd
Ingestion contract version: V1
Source record count: 10

REFERENCE PROVENANCE
Reference source: EF-PUMP Professional public DEMO-B constructed reference
Reference document: DEMO-B constructed demonstration reference
Reference date: 2026-08-02
Reference flow: 100.0
Reference head: 50.0
Reference power: 20.0
Reference speed: 1450.0

VALIDATION STATUS
sha256:45cdbb69f0be2e15ce9e2ec0d8aacc73a520ae2710e6a3cc04c2f5dd1da9e960: VALID
sha256:103a8dfa951d963fdd085dfc2fbbdffe2c4f8ae4ea9295962f4df45897416cc4: VALID
sha256:989891d3d00a46e5ce21d16433287ea53c6be742836421f0465d6391d85df48a: VALID
sha256:8e7c9339efe220c91a8059f741da5f5ad0c09eb698145f17ac173d6e88c0e8da: VALID
sha256:19d58edcec39540b0c6e99f12a7f8a369a1b44eea14b69ecd8cf11592011cf17: VALID
sha256:a5b6145908c4c5636e83b04001e267c824a38bd9bb1bacdc7336942362a4ac1d: VALID
sha256:3bd72cfd9eb12b5398bcb2e2aaaa4cd225b204bd734ccb41146ef2ef5aac0d60: VALID
sha256:2421aa86e4ac3c0af710fb7f52337638d658f566218692b241fdc036e646ab62: VALID
sha256:a5da022e4b15b17d6a6aa0143591320d015dbc9264debb29e8f2610b49998458: VALID
sha256:1078c529f0a002dd8813966530bb740e1451a111f711227c71793206cb024f2e: VALID

DIA-001 DIAGNOSTIC EVALUATION
sha256:45cdbb69f0be2e15ce9e2ec0d8aacc73a520ae2710e6a3cc04c2f5dd1da9e960: NON-QUALIFYING
  Observed head: 49.8641228146207
  Reference head: 50.0
  Deviation: -0.2717543707586003%
  Threshold: -10.0%
sha256:103a8dfa951d963fdd085dfc2fbbdffe2c4f8ae4ea9295962f4df45897416cc4: NON-QUALIFYING
  Observed head: 50.06806605721628
  Reference head: 50.0
  Deviation: 0.1361321144325558%
  Threshold: -10.0%
sha256:989891d3d00a46e5ce21d16433287ea53c6be742836421f0465d6391d85df48a: NON-QUALIFYING
  Observed head: 49.66017957202511
  Reference head: 50.0
  Deviation: -0.6796408559497849%
  Threshold: -10.0%
sha256:8e7c9339efe220c91a8059f741da5f5ad0c09eb698145f17ac173d6e88c0e8da: NON-QUALIFYING
  Observed head: 50.37398092110966
  Reference head: 50.0
  Deviation: 0.7479618422193255%
  Threshold: -10.0%
sha256:19d58edcec39540b0c6e99f12a7f8a369a1b44eea14b69ecd8cf11592011cf17: 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:a5b6145908c4c5636e83b04001e267c824a38bd9bb1bacdc7336942362a4ac1d: 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.
sha256:3bd72cfd9eb12b5398bcb2e2aaaa4cd225b204bd734ccb41146ef2ef5aac0d60: 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.
sha256:2421aa86e4ac3c0af710fb7f52337638d658f566218692b241fdc036e646ab62: 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:a5da022e4b15b17d6a6aa0143591320d015dbc9264debb29e8f2610b49998458: 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.
sha256:1078c529f0a002dd8813966530bb740e1451a111f711227c71793206cb024f2e: 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.

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

Engineering meaning:
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:
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
sha256:45cdbb69f0be2e15ce9e2ec0d8aacc73a520ae2710e6a3cc04c2f5dd1da9e960: EVALUATED - NON-QUALIFYING
sha256:103a8dfa951d963fdd085dfc2fbbdffe2c4f8ae4ea9295962f4df45897416cc4: EVALUATED - NON-QUALIFYING
sha256:989891d3d00a46e5ce21d16433287ea53c6be742836421f0465d6391d85df48a: EVALUATED - NON-QUALIFYING
sha256:8e7c9339efe220c91a8059f741da5f5ad0c09eb698145f17ac173d6e88c0e8da: EVALUATED - NON-QUALIFYING
sha256:19d58edcec39540b0c6e99f12a7f8a369a1b44eea14b69ecd8cf11592011cf17: EVALUATED - QUALIFYING
sha256:a5b6145908c4c5636e83b04001e267c824a38bd9bb1bacdc7336942362a4ac1d: EVALUATED - QUALIFYING
sha256:3bd72cfd9eb12b5398bcb2e2aaaa4cd225b204bd734ccb41146ef2ef5aac0d60: EVALUATED - QUALIFYING
sha256:2421aa86e4ac3c0af710fb7f52337638d658f566218692b241fdc036e646ab62: EVALUATED - QUALIFYING
sha256:a5da022e4b15b17d6a6aa0143591320d015dbc9264debb29e8f2610b49998458: EVALUATED - QUALIFYING
sha256:1078c529f0a002dd8813966530bb740e1451a111f711227c71793206cb024f2e: EVALUATED - QUALIFYING

DIAGNOSTIC EPISODES
episode:db7d34d1627d43b958040b39bbc5913e3bd418d994f0edfd6c9ed1727708a0ee | Rule: DIA-001 | Status: ACTIVE
  Assertion timestamp: 2026-08-02T09:45:00
  Assertion supporting record: sha256:19d58edcec39540b0c6e99f12a7f8a369a1b44eea14b69ecd8cf11592011cf17
  Assertion supporting record: sha256:a5b6145908c4c5636e83b04001e267c824a38bd9bb1bacdc7336942362a4ac1d
  Assertion supporting record: sha256:3bd72cfd9eb12b5398bcb2e2aaaa4cd225b204bd734ccb41146ef2ef5aac0d60
  Assertion supporting record: sha256:2421aa86e4ac3c0af710fb7f52337638d658f566218692b241fdc036e646ab62

TEMPORAL TRANSITIONS
ASSERTED | Rule: DIA-001 | Episode: episode:db7d34d1627d43b958040b39bbc5913e3bd418d994f0edfd6c9ed1727708a0ee | Timestamp: 2026-08-02T09:45:00
  Supporting record: sha256:19d58edcec39540b0c6e99f12a7f8a369a1b44eea14b69ecd8cf11592011cf17
  Supporting record: sha256:a5b6145908c4c5636e83b04001e267c824a38bd9bb1bacdc7336942362a4ac1d
  Supporting record: sha256:3bd72cfd9eb12b5398bcb2e2aaaa4cd225b204bd734ccb41146ef2ef5aac0d60
  Supporting record: sha256:2421aa86e4ac3c0af710fb7f52337638d658f566218692b241fdc036e646ab62