FUNCTION
DIRECTIONS
ALARM
By default, the audible alarm for CO
2
levels exceeding set level, is set to OFF.
Once ALARM is selected (by pressing ENTER), use either UP or DOWN to
toggle the selection from ON to OFF or vice versa. Press ENTER one more
time to confirm. A regular bell icon will be displayed if alarm is on; a silenced
bell icon will appear on the screen if the alarm is set to off.
TIME
This function allows the user to adjust the real time. Once TIME is selected,
use UP and DOWN to adjust the current date and time. Press ENTER to
confirm.
LOG
This feature allows the user to see historical data recorded in the log at any
point that is displayable on the chart. First make sure the desired Zoom
Level is selected before enabling this function. Once LOG is enabled, use
UP and DOWN to toggle between the time divisions to see all parameters’
measurements for each division. Press ENTER once more to exit this mode.
CALI
Use this function to calibrate your device with outside atmospheric CO
2
levels (usually around 400 ppm). Select this mode, hold ENTER for 3
seconds until a beep is heard, and the chart will read “Calibrating”. Then
place the device outdoors for 20 minutes. To escape, press MENU. Make
sure the device is far from a source of CO
2
, not in direct sunlight, and not
exposed to water. Do not stand near the device during calibration mode.
ALTI
This feature provides an altitude correction to the CO
2
level for increased
accuracy. Select this feature, then use UP and DOWN to input the current
altitude in meters. Press ENTER once altitude is correct.
ºC/ºF
Use this feature to toggle between Celsius and Fahrenheit for the
temperature display. First use UP and DOWN, then ENTER when the
desired one is selected.
ADV
This function toggles between three things when selected: 1. Changing the
alarm and lights to suit levels for Low Border; 2. Changing the alarm and
lights to suit levels for Hi Border; and 3. Restore Factory setting.
Restore Factory Setting will reset the device to factory settings and erase
all stored data in the chart. To use any of these modes, hold ENTER for 3
seconds until an audible beep is heard.
(Return)
Exits the main menu. No options will be displayed on the green bar. A
different audible beep will be heard in this option.
MAIN MENU FUNCTIONS CHART
10
