10 CO220-en-US_V1.5 8/20
Setup Mode
Press and hold the SET button for 2 seconds from the normal mode of
operation to access the SETUP mode.
Setting Year
When the two-digit year number appears, use the SELECT button to
increase the year value. Press SET to move to the next setting
Setting Month
When the two-digit month appears on the LCD press SELECT to
increase the month. Press SET to save and move to the next setting.
Setting Date
When the two-digit date appears on LCD press SELECT to increase the
date. Press SET button to save and move to the next setting.
Setting Hours
When the two-digit hour appears on the LCD press SELECT to increase
the hour. Press SET to move to the next setting.
Setting Minutes
When the two-digit minutes value appears on the LCD press SELECT to
increase the minutes. Press SET to move to the next setting.
High CO
2
Alarm
In the SETUP mode, after the date and time are set (as detailed above)
the A-on icon will be displayed in the upper display. Press the SELECT
button to switch the alarm ON or OFF. See diagram below.
