8. Lock/unlock buttons
When the control panel is locked,
light off.
When the control panel is unlocked,
light up.
Without any operation for 3 minutes, the buttons will lock automatically,
9. Sleep and wake up of the screen
When the unit is switched off and there is no faulty on the system, without any press in 60s, the
screen will sleep.
Press any button or there is any faulty on the system, it will wake up.
10. Speaker
When switch on the power, the speaker will make noise.
When short press button the speaker will make noise.
When there is faulty on the system the speaker will not make noise.
icon light up, press
icon light off, press
20
for 3s to unlock,
for 3s to lock,
icon will light up.
icon will
icon will