Document Overview
Key Findings The ETENWOLF S4 SUP pump successfully passed all operating temperature tests, demonstrating normal operation across a working range of −20 °C to 60 °C and correct thermal protection activation at −22 °C and 63 °C. Product: S4 SUP Pump (浆板泵) Report No.: 2025081901…
- Document type
- Test Report
- Prepared by
- Daniel Wright
- Published
- Last reviewed
- Topics
- Environmental Testing
Key Findings
The ETENWOLF S4 SUP pump successfully passed all operating temperature tests, demonstrating normal operation across a working range of −20 °C to 60 °C and correct thermal protection activation at −22 °C and 63 °C.
- Product: S4 SUP Pump (浆板泵)
- Report No.: 2025081901
- Test Date: 2025-08-19
- Samples: 3 units (S4-6#, 7#, 8#)
- Low-temperature protection threshold: −22 °C → E02 error displayed (protection activated)
- Low-temperature normal operation: −20 °C and −17 °C → powered on and operated normally
- High-temperature protection threshold: 63 °C → E02 error displayed (protection activated)
- High-temperature normal operation: 60 °C and 57 °C → powered on and operated normally
- Overall verdict: PASS
Test Overview
| Field | Details |
|---|---|
| Product No. / Name | SUP Pump (浆板泵) |
| Model / Specification | S4 |
| Report No. | 2025081901 |
| Test Date | 2025-08-19 |
| Sample Quantity / No. | 3 PCS — S4-6#, S4-7#, S4-8# |
| Test Type | Reliability Test (可靠性测试) |
| Test Standard | Internal Control Standard (内控标准) |
| Test Purpose | Evaluate the effect of temperature performance on samples during operation under high and low temperature storage conditions |
| Acceptance Criterion | Sample operates normally within the specified ambient temperature range |
| Product | ETENWOLF S4 20 PSI Electric SUP Pump |
Test Equipment & Setup
| Item | Details |
|---|---|
| Test Equipment | Constant Temperature and Humidity Chamber / Power Meter (恒温恒湿箱 / 功率计) |
| Ambient Temperature | 23 °C |
| Ambient Humidity | 60 % |
| Soak Duration per Condition | 2 hours |
| Low-temperature normal operation levels | −17 °C, −20 °C |
| Low-temperature protection trigger level | −22 °C |
| High-temperature normal operation levels | 57 °C, 60 °C |
| High-temperature protection trigger level | 63 °C |
Test Procedure
- Pre-test: Record sample IDs (S4-6#, S4-7#, S4-8#) and verify ambient lab conditions: 23 °C, 60 % RH.
- Low-temperature normal operation — Step 1: Place all samples in the chamber at −20 °C. Hold for 2 hours. Power on each sample and confirm normal operation.
- Low-temperature normal operation — Step 2: Set chamber to −17 °C. Hold for 2 hours. Power on each sample and confirm normal operation.
- Low-temperature protection: Set chamber to −22 °C. Hold for 2 hours. Power on each sample and confirm that the E02 low-temperature protection code is displayed.
- High-temperature normal operation — Step 1: Set chamber to 57 °C. Hold for 2 hours. Power on each sample and confirm normal operation.
- High-temperature normal operation — Step 2: Set chamber to 60 °C. Hold for 2 hours. Power on each sample and confirm normal operation.
- High-temperature protection: Set chamber to 63 °C. Hold for 2 hours. Power on each sample and confirm that the E02 high-temperature protection code is displayed.
- Post-test: Allow samples to return to room temperature. Record all results and photograph test states.
- Acceptance criterion: Samples must operate normally within the specified working temperature range; protection codes must trigger correctly outside that range.
Test Data & Results
| Sample ID | Test Condition | Observation |
|---|---|---|
| S4-6# / 7# / 8# | Low-Temperature Protection Test (低温保护测试) | After 2 hours of storage at −22 °C, samples powered on and displayed E02 (low-temperature protection) |
| S4-6# / 7# / 8# | Low-Temperature Power-On Test (低温通电测试) | After 2 hours of storage at −20 °C, samples powered on and operated normally |
| S4-6# / 7# / 8# | Low-Temperature Power-On Test (低温通电测试) | After 2 hours of storage at −17 °C, samples powered on and operated normally |
| S4-6# / 7# / 8# | High-Temperature Protection Test (高温保护测试) | After 2 hours of storage at 63 °C, samples powered on and displayed E02 (high-temperature protection) |
| S4-6# / 7# / 8# | High-Temperature Power-On Test (高温通电测试) | After 2 hours of storage at 60 °C, samples powered on and operated normally |
| S4-6# / 7# / 8# | High-Temperature Power-On Test (高温通电测试) | After 2 hours of storage at 57 °C, samples powered on and operated normally |
Test Picture Categories: High/Low Temperature Power-On Test (高低温通电测试) | High/Low Temperature Discharge Test / High/Low Temperature Protection Test (高低温放电测试 / 高低温保护测试)
Overall Test Result: Samples passed the temperature shock test process. Both high-temperature and low-temperature tests met the power-on requirements for the specified operating temperature range.
Conclusion
| Field | Details |
|---|---|
| Result | ■ Pass (合格) |
| Standard | Internal Control Standard — sample operates normally within the specified ambient temperature range |
| Working Temperature Range (normal operation) | −20 °C to 60 °C |
| Thermal Protection Activation | −22 °C (low) and 63 °C (high) → E02 code displayed correctly |
| Samples Tested | 3 PCS — S4-6#, S4-7#, S4-8# |
| Verdict | All samples met operating temperature requirements. Thermal protection functioned as designed at both extremes. |
Document Information
| Role | Name (Pinyin) | Date |
|---|---|---|
| Tested By (测试/日期) | Li Guanghua | 2025-08-19 |
| Checked By (审核/日期) | Zhang Ronggui | 2025-08-19 |
| Approved By (核准/日期) | Mai Shaoqiang | 2025-08-19 |
| Form No. | BTK-R-Q142/AO | |
Frequently Asked Questions
What is the operating temperature range of the ETENWOLF S4 SUP pump?
The S4 SUP pump operates normally between −20 °C and 60 °C. Outside this range, the unit activates thermal protection (error code E02) and will not run until conditions return within safe limits.
What does the E02 error code mean on the ETENWOLF S4?
E02 indicates a thermal protection event. It appears when the pump is powered on below −22 °C (low-temperature protection) or above 63 °C (high-temperature protection). Allow the unit to return to a safe operating temperature before use.
How was the S4 temperature test conducted?
Each of the three sample units was placed in a constant temperature and humidity chamber at each test temperature for a soak period of 2 hours, then powered on. Results were recorded for both normal operation levels and protection-trigger levels at high and low temperature extremes.
Did the ETENWOLF S4 pass the operating temperature test?
Yes. All three samples passed. The pump operated normally at −20 °C, −17 °C, 57 °C, and 60 °C, and correctly displayed the E02 protection code at −22 °C and 63 °C. The test was conducted on 2025-08-19 and approved by Mai Shaoqiang.