2 key switches and functions – A&D Weighing MPA-1200 User Manual
Page 18

16
Symbols Descriptions
Aspirating
and
dispensing
speed display
Shows the speed level when aspirating or dispensing 
the liquid. ▲ blinks when aspirating, ▼ blinks when 
dispensing (Refer to “ 9-4 System setting mode 
(SYS)”.) 
Notice
mark
When illuminated: 
Shows that volume calibration has been carried out. 
When flashing: 
Shows that weight mode for dispensing (mg) has been 
selected. (Refer to “11-3 Dispensing in a unit of weight 
(in mg unit)”.) 
Buzzer
mark
Shows the buzzer is to sound or not. 
(Refer to “9-4 System setting mode (SYS)”.) 
Battery
mark
Shows the battery status.
Charging amount: Full 
Charging amount: Low (Recharge the battery 
using AC adapter.)
During charging
8-2 Key switches and functions
Keys Symbols
Functions
and
descriptions
Enter
key
Confirms the setting content.
Back
key
Changes the mode or cancels it.
Up key
Increases the volume and setting value. Changes items 
(Mode). 
Setting 
keys 
Down
key
Decreases the volume and setting value. Changes items 
(Mode). 
Resetting key
Stops dispensing a liquid and returns the built-in piston to the 
initial default position. 
By pressing the Resetting key, all illuminations illuminate. 
After that, the pipette returns to the operating mode if any key 
is pressed. 
Operation key
Starts aspirating 
and dispensing. 
Discharges all the liquid left in the
tip when held down in the middle
of multiple dispensing.
Puts the pipette in standby mode
when held down further.
Eject button
Detaches the tip.
Useful use method: The Operation key (key switch on rear side on the pipette)
has the same function as the Up key. This allows you to 
quickly perform settings such as changing the volume without 
shifting the pipette in the hand. 
