EDAN SONOTRAX Basic User Manual - 2.4 Buttons

SONOTRAX Series Ultrasonic Pocket Doppler User Manual              Doppler and Accessories 

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FHR Displaying: 

This area displays the fetal heart rate value, and its unit is bpm (beat per minute). 

Probe Type: 

The Doppler can detect and identify the probe: when the probe is not connected or poorly 

connected, the “---” symbol and “MHz” symbol on the LCD screen flash; when the probe is well 

connected, the flashing stops, and the probe type is shown on the LCD screen. 

Communication 

The Doppler can communicate with PC. This function is reserved. 

2.4 Buttons 

At most there are four push buttons (Power,  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) Power Button 

Function: Switch on or off the Doppler. 

(2) MODE Button 

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

SONOTRAX II Pro) 

Function: Select the working mode.   

(3) 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). 

(4) REC/PLAY 

(Only for SONOTRAX Pro/ SONOTRAX II Pro)

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

(5) Volume Control Indicator 

Function:  Adjust volume. Rotate the volume gear clockwise to turn up the volume, while 

rotate it anti-clockwise to turn down the volume.