SD3 Series Ultrasonic Pocket Doppler User Manual Examining
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5 When applied to the patient, the ultrasound transducer may warm slightly (less than
5°C (9°F ) above ambient temperature). When NOT applied, the ultrasound
transducer may warm slightly (less than 4°C (7.2°F ) above ambient temperature).
4.2 FH Sound Recording and Playing
This function is only available with SD3 PRO.
Recording:
Press and hold the button for three seconds, the machine starts recording, and the
OLED reads .
The longest record time is 240 seconds. When the time is up or the button is pressed
again, the Doppler stops recording and returns to the real-time status.
NOTE:
Only the last set of recorded fetal heart sounds is saved in the Doppler. It is cleared
when new sounds are recorded.
Playing:
Press the button once, the machine plays the recorded sound, and the OLED reads
.
When the recorded sound comes to the end or the button is pressed again, the Doppler
stops playing and returns to the real-time status.
NOTE:
Observe the OLED, pay attention not to mistake the recorded fetal heart sound for the
real-time sound.
4.3 FH Sound Recording by PC
4.3.1 Recording Sounds
1. Insert one plug of the special line-in cable supplied by the manufacturer to the audio input
socket (the socket with the symbol “ ”) of the PC. If the PC has no audio input socket,
insert the plug into the microphone socket (the socket with the symbol “ ”).
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