Document Overview
Key Findings The ETENWOLF T500 tire pressure gauge passed all functional tests on 2024-09-02, with display, button, and sensor accuracy all meeting internal acceptance criteria. Product: ETENWOLF T500 Tire Pressure Gauge Report No.: 2024090201 Test Date: 2024-09-02 Sample Quantity: 1 PCS Test Type: Functional Test…
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- Test Report
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- Kevin Marshall
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Key Findings
The ETENWOLF T500 tire pressure gauge passed all functional tests on 2024-09-02, with display, button, and sensor accuracy all meeting internal acceptance criteria.
- Product: ETENWOLF T500 Tire Pressure Gauge
- Report No.: 2024090201
- Test Date: 2024-09-02
- Sample Quantity: 1 PCS
- Test Type: Functional Test
- Standard: Internal Standard
- Display & Button: Normal illumination, no dim segments or missing strokes; power and unit-switch buttons fully functional
- Accuracy at 40 psi: Gauge reference 39.8 psi → T500 reads 40.0 psi (deviation +0.2 psi)
- Accuracy at 90 psi: Gauge reference 89.81 psi → T500 reads 90.1 psi (deviation +0.29 psi)
- Accuracy at 120 psi: Gauge reference 119.68 psi → T500 reads 120.1 psi (deviation +0.42 psi)
- Overall Verdict: PASS — all deviations within ±1 psi acceptance limit
Test Overview
| Field | Detail |
|---|---|
| Product No. / Name | Tire Pressure Gauge |
| Model / Type Specification | ETENWOLF T500 |
| Report No. | 2024090201 |
| Test Date | 2024-09-02 |
| Sample Quantity / No. | 1 PCS |
| Type of Test | Functional Test |
| Test Standard | Internal Standard |
| Test Purpose | Evaluate whether the sample’s display panel, button functions, and sensor accuracy are normal |
Test Equipment & Setup
| Item | Detail |
|---|---|
| Test Equipment | Sensor Test Fixture (传感器测试架) |
| Ambient Temperature | 23 °C |
| Ambient Humidity | 60 % RH |
| Test Conditions | Room temperature and humidity |
Test Procedure
- Pre-test: Confirm ambient conditions are 23 °C / 60 % RH. Mount the sample on the sensor test fixture.
- Display & Button Function Test: Power on the unit and verify the display illuminates normally with no dim segments or missing digit strokes. Operate the power button and the unit-switch button and confirm each functions correctly.
- Accuracy Test — Low Pressure (40 psi): Apply approximately 40 psi to the sensor test fixture. Record the reference gauge reading and the T500 displayed reading.
- Accuracy Test — Mid Pressure (90 psi): Apply approximately 90 psi to the sensor test fixture. Record the reference gauge reading and the T500 displayed reading.
- Accuracy Test — High Pressure / Hold Pressure (120 psi): Apply approximately 120 psi to the sensor test fixture. Record the reference gauge reading and the T500 displayed reading.
- Post-test: Release pressure, power off, and document all observations and measured values.
Acceptance Criteria:
- Display lights up normally; no dim areas or missing strokes on any digit segment.
- Power button and unit-switch button operate correctly.
- All measured pressure values on the T500 differ from the reference gauge value by no more than ±1 psi.
Test Data & Results
Functional Observations — Sample 1#
| No. | Test Item | Observations / Issue Description |
|---|---|---|
| 1# | Display & Button Function | Display illuminates normally with clear segments; button functions are normal |
| 1# | Accuracy Test | Measured pressure values differ from reference by less than 1 psi |
Accuracy Test Data — Sample 1#
| Measurement Point | Low Pressure Accuracy (40 ± 1 psi) | Mid Pressure Accuracy (90 ± 1 psi) | High / Hold Pressure Accuracy (120 ± 1 psi) |
|---|---|---|---|
| Reference Gauge Reading (psi) | 39.8 | 89.81 | 119.68 |
| Sample 1# Measured Reading (psi) | 40.0 | 90.1 | 120.1 |
Observations: At all three test pressures the T500 displayed value remained within ±1 psi of the reference gauge reading. The maximum observed deviation was +0.42 psi at the 120 psi test point, well within the ±1 psi acceptance limit.
Test Image Notes
| Image Subject | Observation |
|---|---|
| Display & Button Function — Power Button / Display | Display illuminates normally |
| Display & Button Function — Unit-Switch Button / Display | Unit switching displays correctly |
| Product Accuracy Test | Pressure readings captured at all three test points |
Conclusion
| Item | Detail |
|---|---|
| Overall Assessment | The sample display illuminates normally with clear segments, button functions are normal, and all measured pressure values differ from the reference by less than 1 psi. Test result: OK. |
| Acceptance Standard | Internal Standard — display normal, buttons functional, accuracy within ±1 psi |
| Test Conditions | 23 °C, 60 % RH; sensor test fixture; 1 PCS sample |
| Sample Quantity | 1 PCS (Sample 1#) |
| Verdict | PASS ■ Qualified (合格) |
Document Information
| Role | Name (Pinyin) | Date |
|---|---|---|
| Tested By | Li Guanghua | 2024-09-02 |
| Checked / Reviewed By | Zhang Ronggui | 2024-09-02 |
| Approved By | Mai Shaoqiang | 2024-09-02 |
| Field | Detail |
|---|---|
| Source File | T500胎压计功能测试（按键、显示屏、传感器）2024.9.2.xlsx |
| Sheet | 功能测试 (Sheet 1 of 1) |
| Report No. | 2024090201 |
Frequently Asked Questions
What does the ETENWOLF T500 functional test check?
The T500 functional test evaluates three areas: display panel illumination (checking for dim segments or missing digit strokes), button operation (power button and unit-switch button), and sensor accuracy at three pressure points — 40 psi, 90 psi, and 120 psi — against a calibrated reference gauge.
What is the accuracy tolerance for the ETENWOLF T500 tire pressure gauge?
Per the internal test standard, the T500 must display a pressure value within ±1 psi of the calibrated reference gauge reading at all test points. In the 2024-09-02 test the maximum deviation recorded was +0.42 psi at 120 psi, comfortably within this limit.
Did the ETENWOLF T500 pass its functional test?
Yes. Sample 1# passed all functional tests on 2024-09-02 (Report No. 2024090201). The display and buttons operated normally, and pressure readings at 40 psi, 90 psi, and 120 psi all fell within the ±1 psi acceptance limit. The unit was rated Qualified (合格).
What test equipment is used to verify T500 sensor accuracy?
A dedicated sensor test fixture (传感器测试架) is used to apply controlled pressures to the T500. The fixture’s reference gauge provides the baseline reading, which is compared against the value displayed on the T500 to calculate deviation.