Figure 3 AC power connection
8 English
User interface and navigation
User interface
Keypad description
1 RETURN key: cancel or exit the
current menu screen to the
previous menu screen
2 MEASUREMENT key: confirm the
selected option
3 UP key: scroll to other options,
change a value
4 RIGHT key: change between
Channel 1 and Channel 2, enter
numbers and letters
Display description
The meter display shows the concentration, units, temperature,
calibration status, operator ID, sample ID, date and time.
5 DOWN key: scroll to other options,
change a value
6 ON/OFF: turn on or turn off the
meter
7 LEFT key: change between
Channel 1 and Channel 2, enter
numbers and letters