ADInstruments AD2821A, Руководство по эксплуатации

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AD2821A OPERATION MANUAL
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will be lighted on the screen.
l
Press MENU key, APO will be flashing on the screen.
Current delay time is also displayed.
l
Press

key to enter the auto power off function
setup, current delay time flashes on the screen.
l
Use

,

keys to select
5’, 10’, 20’
or
30’
.
l Press

key to confirm the current delay time and
return to the main menu.
G
Note
：
When an external DC adapter is used, APO function is disabled
automatically.
l Use

,

keys to select “CAL” function.
l Press

key to enter the calibration function. This
function is protected with password and is not
available for users.
3.3 Battery Replacement
G
Note
：
The instrument will not be started, when the battery is weakening.
Replace the battery immediately.
l Loosen the three screws with suitable driver and
remove the bottom cover.
l Replace the degraded battery with a new DC 9V
battery.
l Model 1604, 006P or other equivalent battery must be
used. Alkaline battery is recommended.
l If the instrument is not in use for more than three
months, if the external DC adapter is always be used,