EDAN SONOTRAX Basic User Manual - page 13

SONOTRAX Series Ultrasonic Pocket Doppler User Manual              Doppler and Accessories 

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6  

Numeric FHR

7  

Probe Type

2.2.3 Buttons 

At most there are three push buttons (MODE,  START/STOP  and REC/PLAY) and a volume 

control button on the main unit of the Doppler. Their primary functions are as follows: 

(1) MODE Button 

(Only for SONOTRAX Basic / SONOTRAX Basic A / SONOTRAX Pro / SONOTRAX II / 

SONOTRAX II Pro) 

Function: Select the working mode.   

(2) START/STOP Button 

(Only for SONOTRAX Basic / SONOTRAX Basic A / SONOTRAX Pro / SONOTRAX II / 

SONOTRAX II Pro) 

Function: Start/ stop examining (Mode 3)/ setting (Mode 4 and Mode 5). 

(3) REC/PLAY 

(Only for SONOTRAX Pro/ SONOTRAX II Pro)

Function: Start/ stop recording or playing fetal heart sound. 

(4) Volume Control Indicator 

Function: Adjust volume. Rotate the volume gear toward “+” to turn up the volume, while 

rotate it toward “-” to turn down the volume. 

2.2.4 Socket 

The two sockets are located on the top panel of the Doppler. 

(1) Earphone socket 

: for outputting audio signals, the earphone or line-in cable connects to 

the Doppler via this socket.