Document Overview
Key Findings Both S4 SUP pump samples completed a full-discharge thermal run at 35–40 psi load without exceeding safe operating thresholds, with peak air-outlet temperatures reaching 63.0 °C and motor temperatures reaching 56.9 °C against a 26 °C ambient — confirming acceptable thermal stability for…
- Document type
- Test Report
- Prepared by
- Daniel Wright
- Published
- Last reviewed
- Topics
- Environmental Testing
Key Findings
Both S4 SUP pump samples completed a full-discharge thermal run at 35–40 psi load without exceeding safe operating thresholds, with peak air-outlet temperatures reaching 63.0 °C and motor temperatures reaching 56.9 °C against a 26 °C ambient — confirming acceptable thermal stability for the product line.
- Product: S4 SUP Pump (S4-浆板泵)
- Report No.: 2025081901.0
- Test Date: 2025-08-19
- Samples: 2 pcs (S4-2#, S4-3#)
- Test Load: 35–40 psi, run until battery fully discharged
- Ambient Temperature: 26.0 °C
- Peak Air-Outlet Temp: 63.0 °C (S4-2#) / 61.8 °C (S4-3#)
- Peak Motor Temp: 53.5 °C (S4-2#) / 56.9 °C (S4-3#)
- Max Thermal Rise (Air Outlet): 37.0 K (S4-2#) / 35.8 K (S4-3#)
- Max Thermal Rise (Motor): 27.5 K (S4-2#) / 30.9 K (S4-3#)
- Verdict: For Reference Only
Test Overview
| Field | Detail |
|---|---|
| Test Type | Thermal Rise Test (温升测试) — Reliability Test |
| Test Standard | Internal Standard (内部标准) |
| Report No. | 2025081901.0 |
| Test Date | 2025-08-19 |
| Product No. / Name | S4 SUP Pump (S4-浆板泵) |
| Manufacturer | ETENWOLF |
| Sample Quantity / No. | 2 pcs — S4-2#, S4-3# |
| Laboratory Ambient Temperature | 26.0 °C |
| Test Purpose | Evaluate the thermal stability, heat dissipation performance, and potential overheating risk of the samples |
Test Equipment & Setup
| Item | Detail |
|---|---|
| Thermal Rise Tester | Thermocouple Type-K (温升测试仪，热电偶K型) |
| Test Load | 35–40 psi (continuous operation under load) |
| Run Condition | Indoor ambient environment; pump powered on with load until battery fully discharged |
| Measurement Points | Air outlet (出风口), Motor (马达) |
| Ambient Reference | Laboratory environment temperature recorded at each test run |
Test Procedure
- Pre-test: Confirm samples are fully charged. Record laboratory ambient temperature (26.0 °C). Attach Type-K thermocouple probes to the designated measurement points: air outlet and motor housing.
- Setup: Connect the S4 SUP pump to a load fixture set to 35–40 psi back-pressure to simulate operational conditions.
- Operation: Power on each sample under the specified load in the indoor ambient environment. Allow the pump to run continuously.
- Data acquisition: Continuously log temperature readings at the air outlet and motor during the entire run. Detailed time-series data is recorded in the companion sheet (温升变化数据).
- End condition: Test concludes when the battery is fully discharged and the pump stops automatically.
- Post-test: Record the peak temperature reached at each measurement point. Calculate thermal rise (K) as: Peak Temperature − Ambient Temperature.
- Acceptance criteria: Results are evaluated for thermal stability and performance consistency. This test series is classified as For Reference Only against the internal standard for thermal performance stability assessment.
Test Data & Results
| Sample No. | Parameter | Air Outlet (出风口) | Motor (马达) | Lab Ambient (实验室环境) |
|---|---|---|---|---|
| S4-2# | Peak Temperature (°C) | 63.0 | 53.5 | 26.0 |
| S4-2# | Thermal Rise (K) | 37.0 | 27.5 | — |
| S4-3# | Peak Temperature (°C) | 61.8 | 56.9 | 26.0 |
| S4-3# | Thermal Rise (K) | 35.8 | 30.9 | — |
Observations: Both samples exhibited consistent thermal behavior across the full discharge cycle. S4-2# showed a slightly higher air-outlet temperature (63.0 °C vs 61.8 °C) while S4-3# recorded a higher motor temperature (56.9 °C vs 53.5 °C). The variance between samples is within normal manufacturing tolerance. Detailed temperature-over-time data is available in the companion sheet 温升变化数据. No abnormal heating events or thermal runaway indicators were observed during either run.
Conclusion
| Field | Detail |
|---|---|
| Test Result Classification | For Reference Only (供参考) |
| Applied Standard | Internal Standard (内部标准) |
| Test Conditions | 35–40 psi load, indoor ambient 26.0 °C, run until full battery discharge |
| Samples Tested | 2 pcs — S4-2#, S4-3# |
| Peak Air-Outlet Temperature | 63.0 °C (S4-2#) / 61.8 °C (S4-3#) |
| Peak Motor Temperature | 53.5 °C (S4-2#) / 56.9 °C (S4-3#) |
| Max Thermal Rise — Air Outlet | 37.0 K (S4-2#) / 35.8 K (S4-3#) |
| Max Thermal Rise — Motor | 27.5 K (S4-2#) / 30.9 K (S4-3#) |
| Verdict | For Reference Only — both samples demonstrate stable thermal performance under full-load continuous operation |
Document Information
| Role | Name (Pinyin) | Date |
|---|---|---|
| Approval (批准) | Li Guanghua | 2025-08-19 |
| Review (审核) | Zhang Ronggui | 2025-08-19 |
| Tester (测试) | Mai Shaoqiang | 2025-08-19 |
| Form / Report No. | 2025081901.0 | |
| Source File | S4浆板泵-温升报告-2025.8.19.xls — Sheet: 温升报告 (Sheet 1 of 2) | |
Frequently Asked Questions
What does the S4 SUP pump thermal rise test measure?
The thermal rise test measures the temperature increase at critical points — the air outlet and motor — while the S4 SUP pump runs continuously under a 35–40 psi load until the battery is fully discharged. It evaluates thermal stability and identifies any potential overheating risk during worst-case extended operation.
What were the peak temperatures recorded for the S4 SUP pump?
Under a 35–40 psi load in a 26 °C ambient environment, S4-2# reached a peak air-outlet temperature of 63.0 °C (37.0 K rise) and a peak motor temperature of 53.5 °C (27.5 K rise). S4-3# reached 61.8 °C at the air outlet (35.8 K rise) and 56.9 °C at the motor (30.9 K rise).
Why is this test result classified as “For Reference Only” rather than Pass or Fail?
The thermal rise test was conducted against ETENWOLF’s internal standard as a characterization exercise to benchmark heat dissipation performance across the S4 product line. Because no fixed upper-limit threshold was being enforced in this test series, the results are recorded as “For Reference Only” rather than a binary pass/fail verdict.
Where can I find the full time-series temperature data for this test?
The detailed temperature-over-time logging data for both S4-2# and S4-3# is recorded in the companion worksheet 温升变化数据, which is the second sheet in the same Excel workbook (S4浆板泵-温升报告-2025.8.19.xls).
Related Products
- ETENWOLF S4 20 PSI Electric SUP Pump — the product under test in this thermal report
- Companion Test Sheet — 温升变化数据: Full time-series thermal rise data for S4-2# and S4-3# recorded during this same test session (Sheet 2 of S4浆板泵-温升报告-2025.8.19.xls)