SECTION B: Fan Testing Instrument Technical Specifications
Manufacturer
Long Win Science & Technology Corporation
模式l Number
LW-9266
Air Flow Rate
2.4 – 250 CFM
Accuracy of Air Flow Rage
< 3.5% INFS
Repeatability error
< 2%
Static pressure
0-20mmAq (100mmAq with the high static pressure throttle device)
Overall Dimensions
0.7 (W) x 2.2 (L) x 1.6 (H) m
Power Source
220VAC, 5A, Single Phase, 50/60Hz
Based on Standards
ISO 5801-2007, AMCA 210-0, ASHRAE 51-2007, IEC 61591-2005, GB/T 1236-200
SECTION C: PHI Performance Levels
Pressure at 25dBA
P (mmAq)
2.36
Airflow at 25dBA
Q (CFM)
48.64
SECTION D: Information about DUT
Product Identification Details
Brand
Cooler Master
模式l
MasterFan M120 ARGB
Serial Number
MFZP2DM20NP2R11261400296
Product Specifications
Manufacturer
Bearing
Magnetic Levitation
Connector
Proprietary
Cable length (mm)
90
Daisy-chain
Cable
RGB Connector
5V ARGB
RGB Daisy-chain
Cable
Cybenetics
Max Speed (RPM)
2343
Max Airflow (CFM)
69.37
Max Static Pressure (mmAq)
4.66
Max 风扇噪音 Level (dBA)
35.00
Fan Max Current (A)
0.24
Fan Weight (gr)
280
Dimensions (W x H x D)
120mm x 120mm x 30mm
Cybenetics 测试ing Information
Lab ID
CM12000235
Date of receipt
May 25, 2026
测试ing Date
May 26, 2026
Report Issued Date
May 26, 2026
Engineer Name
Aris Bitziopoulos
Authorized By the Laboratory Technical Manager
Aristeidis Bitziopoulos
Signature
SECTION E: Long Win LW-9266 - Pressure and Airflow
PQ Chart All Speed
PQ Chart 20% Speed
PQ Chart 30% Speed
PQ Chart 40% Speed
PQ Chart 50% Speed
PQ Chart 60% Speed
PQ Chart 70% Speed
PQ Chart 80% Speed
PQ Chart 90% Speed
PQ Chart 100% Speed
SECTION F: General Performance
Fan Percentage RPM LongWin
Fan Percentage CFM
Fan Percentage Pressure
Fan Percentage Power
Fan Percentage Amps
Fan Percentage Noise
Fan Speed Noise
Fan Noise Speed
SECTION G: Uncertainty
Fan Performance - Static Pressure
The Fan Static Pressure Measurement’s Uncertainty is ±0.68 Pa
The reported expanded uncertainty (U) was derived as the product of the combined standard uncertainty (u) and the coverage factor k = 2, corresponding to a confidence interval of approximately 95%. Measurement uncertainty was determined in accordance with JCGM Guide 100:2008, "Guide to the Expression of Uncertainty in Measurements". The estimate of the reported uncertainty pertains to values obtained during the measurements and does not account for possible long-term changes.
Static Pressure Uncertainty Budget
Source of Uncertainty
Standard Uncertainty, u(xi) (Pa)
LW-9266 Instrument Accuracy
0.260
Repeatability
0.075
Calibration
0.012
Temperature influence
0.208
Relative Combined Standard Uncertainty (RSS):
0.34
% Expanded Uncertainty U (k=2, norm):
0.68
Fan Performance - Airflow
The Fan Airflow Measurement’s Uncertainty is ±3.94 CFM
The reported expanded uncertainty (U) was derived as the product of the combined standard uncertainty (u) and the coverage factor k = 2, corresponding to a confidence interval of approximately 95%. Measurement uncertainty was determined in accordance with JCGM Guide 100:2008, "Guide to the Expression of Uncertainty in Measurements". The estimate of the reported uncertainty pertains to values obtained during the measurements and does not account for possible long-term changes.