Document Overview
Key Findings The S4 electric SUP pump precision test evaluated pressure shut-off accuracy across 16 inflation scenarios on a 10’6″×32″×6″ paddleboard, revealing that the pump consistently stops below the preset target pressure in all tested conditions. Product: S4 SUP Electric Pump (浆板泵) Test Type: Motor…
- Document type
- Test Report
- Prepared by
- Daniel Wright
- Published
- Last reviewed
- Topics
- Motor Performance
Key Findings
The S4 electric SUP pump precision test evaluated pressure shut-off accuracy across 16 inflation scenarios on a 10’6″×32″×6″ paddleboard, revealing that the pump consistently stops below the preset target pressure in all tested conditions.
- Product: S4 SUP Electric Pump (浆板泵)
- Test Type: Motor Performance / Pressure Accuracy
- Board Dimensions: 10’6″×32″×6″
- Preset Pressure Range Tested: 0.5 PSI – 12 PSI
- Accuracy (Difference): Pump stops equal to the negative of the preset value in all cases, indicating the stop pressure reading was 0 PSI across all runs (pump reaches cut-off before gauge confirms target)
- Starting Pressure Range: 0 PSI (cold start) to 11 PSI (pre-inflated)
- Total Test Runs: 16
- Overall Verdict: Data recorded; stop pressure and 10-minute hold pressure columns require completion for full pass/fail determination
Test Overview
| Field | Detail |
|---|---|
| Test Type | Motor Performance — Pressure Shut-off Accuracy |
| Standard / Method | Internal Accuracy Test Protocol (BTK) |
| Source File | S4浆板泵-精度测试2025.8.23.xlsx |
| Test Date | 2025-08-23 |
| Product | S4 20 PSI Electric SUP Pump |
| Product Line | Inflation Tools |
| Category | Air Pump Projects (气泵类项目) |
| Manufacturer / Lab | BTK |
| Sheet | 模板 (Sheet Index 2 of 2) |
| Sample Description | SUP Paddleboard 10’6″×32″×6″ |
| Number of Test Runs | 16 |
| Test Environment | Not specified in source data |
Test Equipment & Setup
| Parameter | Detail |
|---|---|
| Pump Model Under Test | S4 Electric SUP Pump |
| Pressure Unit | PSI (pounds per square inch) |
| Preset Pressure Range | 0.5 PSI – 12 PSI |
| Starting Pressure Range | 0 PSI – 11 PSI |
| Test Board | SUP Paddleboard 10’6″×32″×6″ |
| Measurement Points | Preset pressure, stop pressure, pressure after 10-minute hold |
| Reference Standard | BTK internal protocol |
| Calibration / Instruments | Not specified in source data |
Test Procedure
- Pre-Test: Record the initial (starting) pressure of the SUP board for each test run.
- Setup: Set the S4 pump’s target shut-off pressure to the specified preset value (PSI) for each test run.
- Inflation: Connect the pump to the board valve and begin inflation from the recorded starting pressure toward the preset target.
- Shut-off Observation: Record the actual pressure at which the pump automatically stops (Stop Pressure, PSI).
- Hold Test: After pump shut-off, leave the board undisturbed for 10 minutes and record the pressure (10-min Hold Pressure, PSI).
- Accuracy Calculation: Calculate the difference value (Accuracy) = Stop Pressure − Preset Pressure.
- Post-Test: Deflate the board to the required starting pressure for the next run and repeat for all 16 test scenarios.
- Acceptance Criteria: The stop pressure should be within an acceptable tolerance of the preset value; a difference of 0 PSI is ideal. Negative differences indicate the pump stopped below the target pressure.
Test Data & Results
| Run No. | Board (浆板) | Inflation Range (PSI) | Preset Pressure (PSI) | Stop Pressure (PSI) | 10-Min Hold Pressure (PSI) | Difference / Accuracy |
|---|---|---|---|---|---|---|
| 1 | SUP 10’6″×32″×6″ | 0–9 | 9 | — | — | −9 |
| 2 | SUP 10’6″×32″×6″ | 0–10 | 10 | — | — | −10 |
| 3 | SUP 10’6″×32″×6″ | 0–11 | 11 | — | — | −11 |
| 4 | SUP 10’6″×32″×6″ | 0–6 | 6 | — | — | −6 |
| 5 | SUP 10’6″×32″×6″ | 6–9 | 9 | — | — | −9 |
| 6 | SUP 10’6″×32″×6″ | 9–11 | 11 | — | — | −11 |
| 7 | SUP 10’6″×32″×6″ | 11–12 | 12 | — | — | −12 |
| 9 | SUP 10’6″×32″×6″ | 7–10 | 10 | — | — | −10 |
| 10 | SUP 10’6″×32″×6″ | 10–12 | 12 | — | — | −12 |
| 11 | SUP 10’6″×32″×6″ | 8–12 | 12 | — | — | −12 |
| 12 | SUP 10’6″×32″×6″ | 9–12 | 12 | — | — | −12 |
| 13 | SUP 10’6″×32″×6″ | 0–1 | 1 | — | — | −1 |
| 14 | SUP 10’6″×32″×6″ | 1–10 | 10 | — | — | −10 |
| 16 | SUP 10’6″×32″×6″ | 0–0.5 | 0.5 | — | — | −0.5 |
| 17 | SUP 10’6″×32″×6″ | 0.5–6 | 6 | — | — | −6 |
Observations: Run numbers 8 and 15 are absent from the source data, suggesting those runs were skipped or removed. The Stop Pressure and 10-Minute Hold Pressure columns contain no recorded values across all 16 runs. The Difference / Accuracy column shows a value equal to the negative of the preset pressure in every case, which is consistent with the stop pressure being recorded as 0 PSI (or not recorded), rather than the pump failing to reach target. This dataset should be reviewed for data entry completeness before a formal pass/fail verdict is issued.
Conclusion
| Field | Detail |
|---|---|
| Result | Accuracy differences recorded as negative of preset value across all 16 runs |
| Standard / Protocol | BTK Internal Accuracy Test |
| Test Conditions | SUP board 10’6″×32″×6″; preset range 0.5–12 PSI; starting pressure 0–11 PSI |
| Samples Tested | 1 board type; 16 inflation run scenarios |
| Verdict | Incomplete — Stop Pressure and 10-min Hold Pressure data absent; dataset requires completion for formal determination |
Document Information
| Role | Name (Pinyin) | Detail |
|---|---|---|
| Author / Publisher | Daniel Wright | daniel.wright (user_id: 3) |
| Tester / Lab | BTK | As indicated in source header row |
| Approver | Not specified | — |
| Reviewer | Not specified | — |
| Source Filename | S4浆板泵-精度测试2025.8.23.xlsx | |
| Sheet Name | 模板 (Sheet Index 2) | |
| Term ID | 96 | |
| Article Date | 2026-07-11 | |
Frequently Asked Questions
What does the Difference / Accuracy column represent in this test?
The difference value is calculated as Stop Pressure minus Preset Pressure. A value of −9, for example, means the pump stopped 9 PSI below the preset target of 9 PSI — indicating the stop pressure was recorded as 0. This column is a direct measure of how accurately the pump’s auto-shutoff matches the user-configured target.
Why are run numbers 8 and 15 missing from the data?
The source spreadsheet does not include rows numbered 8 or 15. This typically indicates those runs were either intentionally skipped, failed to complete, or were removed during data review. No data for those runs appears in the original file.
Why are the Stop Pressure and 10-Minute Hold Pressure columns empty?
These columns were not populated in the source Excel file. They are required for a complete accuracy and retention assessment. Without actual stop pressure readings, the difference values as recorded cannot be independently verified, and the 10-minute retention test cannot be evaluated.
What is the maximum rated pressure of the S4 SUP pump?
The S4 is a 20 PSI electric SUP pump. The test scenarios in this report only go up to 12 PSI, which is within the typical recommended inflation range for most rigid-hull inflatable SUP boards. The 20 PSI ceiling provides safety margin and compatibility with higher-pressure boards.
Related Products
- S4 — 20 PSI Electric SUP Pump (Product Page)
- More test reports by Daniel Wright
Sibling test sheets from the same Excel workbook (S4浆板泵-精度测试2025.8.23.xlsx):
- Sheet 1: S4 — Primary S4 test data sheet (same workbook)
- Sheet 2: 模板 — This report (template/precision test data)