Document Overview
Key Findings The EV3 inflation pump operates normally after 2 hours of storage at −18 °C and +74 °C, but triggers error code E13 and fails to run after storage at −20 °C. Model: EV3 (V3 Inflation Pump) Report No.: 2025030801 Test Date: 2025-03-08 Samples:…
- Document type
- Test Report
- Prepared by
- Daniel Wright
- Published
- Last reviewed
- Topics
- Environmental Testing
Key Findings
The EV3 inflation pump operates normally after 2 hours of storage at −18 °C and +74 °C, but triggers error code E13 and fails to run after storage at −20 °C.
- Model: EV3 (V3 Inflation Pump)
- Report No.: 2025030801
- Test Date: 2025-03-08
- Samples: 2 PCS (1#–2#)
- High-temperature result: Normal operation after 2 h at +74 °C
- Low-temperature result: E13 error / no operation at −20 °C; normal operation at −18 °C
- Overall verdict: For Reference Only (neither Pass nor Fail)
Test Overview
| Field | Details |
|---|---|
| Test Type | Reliability Test (Environmental Testing) |
| Test Standard | Internal Control Standard |
| Report No. | 2025030801 |
| Test Date | 2025-03-08 |
| Product No. / Name | Inflation Pump |
| Model / Specification | EV3 |
| Manufacturer | ETENWOLF |
| Sample Quantity / No. | 2 PCS |
| Test Purpose | Evaluate the performance impact on samples during high- and low-temperature storage conditions and during operation |
| Test Environment | Room Temperature: 23 °C, Relative Humidity: 60 % |
Test Equipment & Setup
| Item | Details |
|---|---|
| Test Equipment | Constant Temperature and Humidity Chamber (恒温恒湿箱) |
| Room Temperature | 23 °C |
| Room Humidity | 60 % |
| High-Temperature Test Condition | +74 °C, storage duration: 2 hours |
| Low-Temperature Test Condition 1 | −20 °C, storage duration: 2 hours |
| Low-Temperature Test Condition 2 | −18 °C, storage duration: 2 hours |
Test Procedure
- Pre-Test: Confirm sample quantity (2 PCS, labeled 1# and 2#). Record ambient room temperature (23 °C) and humidity (60 %). Inspect samples for any pre-existing defects.
- High-Temperature Procedure: Place samples in the constant temperature and humidity chamber set to +74 °C. Allow samples to stabilize for 2 hours. Immediately upon removal, power on and operate the units. Observe startup behavior, battery display, and all button functions.
- Low-Temperature Procedure (−20 °C): Set chamber to −20 °C. Store samples for 2 hours. Immediately upon removal, power on and attempt to operate. Record any error codes, startup failures, or abnormal behavior.
- Low-Temperature Procedure (−18 °C): Set chamber to −18 °C. Store samples for 2 hours. Immediately upon removal, power on and operate. Observe startup behavior, battery display, and all button functions.
- Post-Test: Document all observations and photographs. Record results in the test log. Compare findings against the acceptance criterion.
- Acceptance Criterion: Samples must start up and operate normally under the specified environmental temperature conditions.
Test Data & Results
| Sample ID | Test Condition | Issue Description / Observations |
|---|---|---|
| 1#–2# | High Temperature (+74 °C) | After 2 hours of storage at 74 °C, samples powered on and started normally. Battery display was normal. All button functions operated correctly. |
| 1#–2# | Low Temperature (−20 °C) | After 2 hours of storage at −20 °C, samples displayed error code E13 on startup and could not operate. Battery display was normal. |
| 1#–2# | Low Temperature (−18 °C) | After 2 hours of storage at −18 °C, samples powered on and started normally. Battery display was normal. All button functions operated correctly. |
Observations: Error E13 is triggered exclusively at −20 °C, indicating a low-temperature protection threshold is active at that temperature. At −18 °C, the units recover and function normally. High-temperature performance at +74 °C is fully compliant with expected behavior. The test picture section of the original report references high-temperature and low-temperature operation photographs (High Temperature Operation Test / Low Temperature Operation Test).
Overall Test Result: EV3 samples stored in the constant temperature chamber at −20 °C for 2 hours trigger E13 (low-temperature error). After storage at −18 °C and +74 °C for 2 hours, normal operation is achieved.
Conclusion
| Test Condition | Standard / Criterion | Samples | Result | Verdict |
|---|---|---|---|---|
| High Temperature: +74 °C, 2 h | Internal Control Standard — normal operation under specified environmental temperature | 2 PCS (1#–2#) | Normal startup, normal battery display, all buttons functional | Meets criterion |
| Low Temperature: −20 °C, 2 h | Internal Control Standard — normal operation under specified environmental temperature | 2 PCS (1#–2#) | E13 error on startup; unable to operate | Does not meet criterion |
| Low Temperature: −18 °C, 2 h | Internal Control Standard — normal operation under specified environmental temperature | 2 PCS (1#–2#) | Normal startup, normal battery display, all buttons functional | Meets criterion |
| Overall Verdict | For Reference Only | |||
Document Information
| Role | Name (Pinyin) | Date |
|---|---|---|
| Tested By | Li Guanghua | 2025-03-08 |
| Checked By | Zhang Ronggui | 2025-03-08 |
| Approved By | Mai Shaoqiang | 2025-03-08 |
| Form No.: BTK-R-Q142/AO | ||
Frequently Asked Questions
What does error code E13 mean on the EV3 inflation pump?
E13 is a low-temperature protection error. It is triggered when the EV3 is powered on after being stored at temperatures at or below −20 °C. The protection circuit prevents the unit from running to avoid potential damage to the battery or motor at extreme cold. Based on this test, the threshold appears to sit between −20 °C and −18 °C, as the unit operates normally after storage at −18 °C.
What is the operating temperature range of the EV3 pump?
Based on this reliability test, the EV3 operates normally within a storage and startup temperature range of approximately −18 °C to +74 °C. Storage at −20 °C prevents normal startup due to the E13 low-temperature error. These results are classified as for reference only under the internal control standard.
Why is the overall verdict “For Reference Only” rather than Pass or Fail?
The original report marks neither the Pass nor Fail checkbox, instead marking “For Reference Only.” This typically means the test was conducted to characterize product behavior and establish boundary conditions rather than to certify compliance with a pass/fail specification. The findings inform future product development and the setting of formal temperature limits.
What test equipment was used for the EV3 working temperature test?
The test used a constant temperature and humidity chamber (恒温恒湿箱) to maintain the required −20 °C, −18 °C, and +74 °C conditions. Ambient room conditions were 23 °C and 60 % relative humidity. No external measurement instruments are listed beyond the chamber itself in the original report.
Related Products
Explore other EV3 test reports and related inflation tool evaluations:
- More reports by Daniel Wright
- ISO Environmental Testing Standards (external reference)