Principle:
Ultrasound, Doppler effect
Acoustic working frequency:
(2.00 ± 0.05) MHz continuous
Doppler frequency:
(290 ± 37) kHz
Overall sensitivity at a distance of
50 mm: (139.0 ± 7.5) dB
75 mm: (136.1 ± 5.2) dB
100 mm: (129.9 ± 10.3) dB
200 mm: (122.4 ± 18.8) dB
Target speed:
(10.7 ± 1.3) m/s
Spatial and temporal peak acoustic pressure:
(17.0 ± 7.1) kPa
Output:
(8.8 ± 4.9) mW
Effective area:
(108 ± 36) mm2
Determination of heart rate:
FHR, autocorrelation software
Measuring accuracy of the heart rate:
± (2% +1 Digit) from display value
Display:
Display of signal intensity, heart rate and battery change
Buttons:
On/Off, volume
Off switch:
Automatic/by pressing both buttons
Pulse display range:
40 - 248 beats/minute
Audio range:
250 Hz - 800 Hz
Battery:
9 V alkaline block battery (Type MN 1604 or 6LR61)
Estimated service life of battery:
10 hours
Material:
ABS/polystyrene
Dimensions of sensor module:
R 35 x 110 mm
Dimensions of hand module:
135 x 80 mm
Weight, complete:
250 g
Working temperature:
+10°C to +40°C
Relative humidity:
30% to 75%
Storage/Transport temperature:
-10°C to +70°C
Class:
IIA in accordance with Directive 93/42/EEC, Appendix 9, Regulation 10, Equipment with internal power supply
Degree of protection:
Type B
Standards:
EN 60601-1, EN 60601-1-2, EN 61266
Test standards for recurrent testing:
ÖVE-MG751 Part 1/1990
