MWE Gold 650 V2 (Fixed)
| Electronic Loads |
Chroma 63601-5 x2 |
|
| AC Sources | Chroma 6530, APM SP300VAC4000W-P | |
| Power Analyzers | RS HMC8015 | |
| Oscilloscopes | Picoscope 4444, Siglent SDS2104X PLUS | |
| Sound Analyzer | Bruel & Kjaer 2270 G4 | |
| Microphone | Bruel & Kjaer Type 4955-A | |
| Temperature Logger | Picoscope TC-08 | |
| Tachometer | UNI-T UT372 | |
| Multimeters | Keysight 34465A | |
| UPS | FSP Champ Tower 3kVA, CyberPower OLS3000E 3kVA | |
| Isolation Transformer | 4kVA | |
| Testing Methodology | Cybenetics PSU Test Protocol | |
| Voltage | 115V | 230V |
|---|---|---|
| Efficiency (>1450 Load Combinations) | 88.134% | 90.349% |
| Efficiency Graphs |  |  |
| Average PF (>1450 Load Combinations) | 0.987 | 0.941 |
| Standby Power Consumption | 0.1091W | 0.1692W |
| ErP Lot 3/6 Ready | ✓ | |
| (EU) No 617/2013 Compliance | ✓ | |
| Average Efficiency VSB | 80.956% | 80.221% |
| Voltage | 115V | 230V |
|---|---|---|
| Noise Rating (>1450 Load Combinations) | 31.52dBA | 31.25dBA |
| Noise Graphs |  |  |
| Model Name | Cooler Master |
| Serial Number | MPE6501ACAAGU21205200002 |
| Comments | NT115V Κλείνει στα 30'' στα Τ10, Τ11, CL2, πάρθηκαν με HTML NT230V Κλείνει στo 1' στα Τ10, Τ11, CL2, πάρθηκαν με HTML NT100V Κλείνει στα 30'' στα Τ10, CL2, πάρθηκαν με HTML |
| Date of receipt | May 6, 2021 |
| Testing Date | Jul 1, 2021 |
| Report Issued Date | May 28, 2021 |
| Engineer Name | 0 |
| Authorized By the Laboratory General Manager | Aristeidis Bitziopoulos |
The Noise Measurement’s Uncertainty is ±1.18 dB. The reported expanded uncertainty is based on a standard uncertainty multiplied by a coverage factor k=2, providing a level of confidence of approximately 95%.
The reported noise measurement’s level is the mean of 10 repeated measurements at an environment with a temperature deviation of ±2 degrees Celsius. The uncertainty was estimated according to the method in UKAS Publication M 3003.
| Source of uncertainty | Value ± | Probability distribution | Divisor | Standard uncertainty |
| Calibrator’s calibration | 0.2 dB | Normal | 2 | 0.1 |
| Calibrator’s accuracy | 0.2 dB | Rectangular | √3 | 0.058 |
| Mic Frequency Response | 2 dB | Rectangular | √3 | 0.577 |
| Temperature Variation | 0.04 dB | Rectangular | √3 | 0.012 |
| Operator’s Accuracy | 0.2 dB | Rectangular | √3 | 0.058 |
| Standard uncertainty of mean of 10 repeated readings | Normal | 1 | 0.031 | |
| Combined Standard Uncertainty | Assumed normal | 0.59 dB | ||
| Expanded Uncertainty | Assumed normal (k = 2) | 1.18 dB |
*Here the (±) half-width divided by √3 is used.