![Twinno T6500 Operating Manual Download Page 9](http://html1.mh-extra.com/html/twinno/t6500/t6500_operating-manual_1184530009.webp)
Keypad descriptions
Keypad operation tips:
Short Press: Short Press means to release the key immediately after pressing. ((Default to
short presses if not indicated below)
Long Press: Long Press is to press the button for 3 seconds and then release it.
6
Enter menu setting mode
Return measurements
Two modes switching
Enter standard solution calibration mode
Calibrated: check the calibration status
Re-calibration: press “ENT” again
Return to
previous menu
Confirmation
options
Menu setting mode:
press this key to loop
down the menu options
Menu setting mode:
press this key to
rotate menu options
Press the key in
measurement mode to
display the trend chart
In measurement mode,
press this button to set
parameters for browsing