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