Apogee Instruments MO-200 Manuel du propriétaire - Page 8
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OPERATION AND MEASUREMENT
MO-200 oxygen meters are designed with a user-friendly interface allowing quick and easy measurements.
To power the meter, slide the included battery (CR2320) into the battery holder, after removing the battery door
from the meter's back panel. The positive side (designated by a "+" sign) should be facing out from the meter circuit board.
Press the power button to activate the LCD display. After two minutes of non-activity the meter will revert to sleep
mode and the display will shut off to conserve battery life.
Press the mode button to access the main menu, where the user can calibrate the meter, select the appropriate
logging (manual or automatic) and where the meter can be reset.
Press the sample button to log a reading while taking manual measurements.
Press the up button to make selections in the main menu. This button is also used to view and scroll through the
logged measurements on the LCD display.
Press the down button to make selections in the main menu. This button is also used to view and scroll through the
logged measurements on the LCD display.
Calibration: To calibrate place the oxygen sensor in a well-ventilated area. Do not breathe on the sensor, as exhaled breath
has a much lower oxygen concentration than ambient air. Push the mode button twice (RUN should be blinking), then while
pressing the sample button push the mode button once. The LCD display will show "CAL" before updating with a value of
20.9 %. The calibration can be performed as often as necessary.
Logging: To choose between manual or automatic logging, push the mode button once and use the up/down buttons to
make the appropriate selection (SMPL or LOG). Once the desired mode is blinking, press the mode button two more times to
exit the menu. When in SMPL mode press the sample button to record up to 99 manual measurements (a counter in the
upper right hand corner of the LCD display indicates the total number of saved measurements). When in LOG mode the
meter will power on/off to make a measurement every 30 seconds. Every 30 minutes the meter will average the sixty 30
second measurements and record the averaged value to memory. The meter can store up to 99 averages and will start to
The LCD display consists of the total number of logged
measurements in the upper right hand corner, the real-time
percent oxygen concentration in the center, and the selected
menu options along the bottom.
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