E-mail: [email protected], URL: www.boreasa.com Miniature Centrifugal Blower C65MS1-24PR-04-Lx 65.5 x 63 x 47 mm (2.58 x 2.48 x 1.85 in) ∗ Housing / Impeller Materials: Medical Grade Thermoplastics ∗ Lead Wire: 285 mm (AWG22 & AWG22) ∗ Weight: 235 gr. (8.29 oz) ∗ Operational Temperature: -20 to +50°C / -4 to +122°F ∗ Three Phase Brushless Motor w/o Hall Sensor ∗ Note: This blower has an integrated driver ∗ Available in 12 V on demand Note: - Performances are dependent on the driver used and the test conditions. The data in this spec. sheet was obtained using Boreasa test chamber at 20°C (±2°C) and sea level. It may be different than data measured in other conditions. - When used as a vacuum, the blower performance might be less than shown herein, depending on the operating point. - Specifications are subject to change without notice. - Boreasa blowers have been designed and are manufactured to meet the medical device industry requirements. However, it is not possible to test blowers in all conceivable customer application configurations. Consequently, to be used in life support equipment, blowers must be life tested and validated by customers, in their actual application conditions, in a statistically meaningful quantity.

E-mail: [email protected], URL: www.boreasa.com #1 At given working points and cycle. #2 Measured at distance of 1 meter from inlet, with open inlet, outlet connected to breathing tube and 4 mm orifice in sound chamber at 10 cmH2O. N ote : - Working point is an example close to 50% of max. flow. - Tolerances based on specified speed data according to ISO 13348, grade 4: pressure ±10%, power ±16%, speed ±5% and flow rate ±5%.

E-mail: [email protected], URL: www.boreasa.com Electrical Connections Speed Output Speed Calculation VSP (Speed Control Voltage) 22 Input Voltage Blower speed [rpm] = 20 * FG FG = Frequency Generator 0 - 1.0 V O Blower stopped Power Supply Requirements VSP not connected Vsp to GND Voltage Ripple Voltage Current Blower speed 100% Blower stopped 10 ~ 28 VDC < 5% Blower Limits and Warning Manufacturing System * Max. allowed temp. on heat-sink: 75°C * Blocking the impeller more than 20 seconds may result in damages or destruction of the blower. * A minimum air flow is required at VCc higher than...

E-mail: [email protected], URL: www.boreasa.com Typical Hookup 1. Measuring the Generator Frequency to calculate the blower speed. 2. Using an external +3.3 V power supply voltage and a potentiometer to control the blower speed. 3. Using a potentiometer to control the blower speed. 4. Using external analog control signal (0 - 3.3 V) to control the blower speed (note: Do not use DC power supply voltage).