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15
TECHNICAL PARAMETERS
Ultrasound: Ultrasonic
emitting frequency
3MHz
Overall sensitivity at the distances 8 in. from the
face of the probe (Doppler frequency: 500 ± 50Hz)
Target velocity
4 in./s ~ 16 in./s: ≥ 90d
Spatial-peak temporal-peak
acoustic pressure
≤ 1MPa
Output power
< 20mW
Effective area of the
ultrasonic transducer
active element
1 sq in. ± 0.1 sq in.
Acoustic coupling
medium for normal use
ph: 5.5~ 8
Acoustic impedance
≤ 1.7*105g / cm2.s
Working mode
Continuous wave Doppler
Audio Output Power : < 0.5 W
Audio Out Socket
Φ 0.14 in./USB interface
Recommended battery type
9V DC alkaline battery (IEC Type No. 6F22 or
equivalent)
Stand-by time
> 4 hours
Recommended
gestation for use
16 gestational weeks or later, depending on
pregnancy
ECHÖ
Model
B0143
Safety
Complies with IEC 60601-1, EN 60601-1, EN60601-1-2,
IEC 61266 norms
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