Customer: Thermaltake
5F, No. 185, Sec.2, Tiding Blvd.,
Neihu Dist., Taipei City 114, Taiwan

Smart BM2 750W

Report Number: 20PS1726A
Customer ID: 56

Test Report Results

Section A: Testing Equipment

Electronic Loads

Chroma 63601-5 x2
Chroma 63600-2
63640-80-80 x10
63610-80-20

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

Section B: ETA

Voltage115V230V
Efficiency (>1450 Load Combinations)85.921%88.238%
Efficiency Graphs
Average PF (>1450 Load Combinations)0.9840.960
Standby Power Consumption0.0405W0.0842W
ErP Lot 3/6 Ready
(EU) No 617/2013 Compliance
Average Efficiency VSB80.276%79.484%

Section C: LAMBDA

Voltage115V230V
Noise Rating (>1450 Load Combinations)35.56dBA35.18dBA
Noise Graphs

Section D: Information about DUT

Model NameThermaltake
Serial NumberPSSPD0750MNFABE1XL000656
CommentsNT115V T11 κλείνει μετά απο 4 λεπτά NT115V CL2 κλείνει μετά απο 2 λεπτά το πήρα με html NT 230V T11 κλείνει μετα απο 3 λεπτα το πήρα με html NT 230V CL2 κλείνει μετά απο 3 λεπτά το πήρα με html
Date of receiptAug 25, 2020
Testing DateJan 20, 2021
Report Issued DateDec 10, 2020
Engineer Name0
Authorized By the Laboratory General ManagerAristeidis Bitziopoulos

Section E: Deviation Additions, deviations, and exceptions to the method table

Uncertainty

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.

Uncertainty Budget
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.