MD300K2
8. USB interface: Used to connect the USB cable for data transmission.
9. Side UP/DOWN button: Press it for extended time to increase/decrease the brightness of
the backlight.
NOTE: In the measuring interface, press the menu button for extended time, the alarm pause
will be turned on; press it again, the alarm pause will be turned off.
2.2 Power Supply
The device can be powered by 3 AA alkaline batteries.
Rear panel introduction:
1: Battery compartment
2: Fixing hole
3: Speaker for alarm
Batteries Installation:
1) Open the battery cover: Slide the fixing screw slightly in the rear panel to the position
which is marked with "
2) Batteries installation: Install 3 AA alkaline batteries or rechargeable batteries lightly as
indicated by the polarity signs as shown in Fig.2-2.
3) Close the battery cover: Close the battery cover and slide the screw to the
means that the battery cover is locked.
Battery life and replacement
When the battery voltage is lower, the battery indicator will become empty and its frame
shows in red, which means few of battery capacity remains. You should replace the batteries
with new ones in time.
Warnings!
If battery fluid should get into your eyes, immediately rinse with plenty of clean water.
Consult a doctor immediately.
Fig.2.2 Rear Panel
" and then open the cover.
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PULSE OXIMETER
position. It