Metria 7722 Manual De Usuario página 6

Setup
Hold down SET key under normal mode for more than 1 second to enter the setup mode. To exit setup, press
CAL/ESC in P1.0, P3.0 or P4.0 and it returns to normal mode.
NOTE: P2.0 is not applicable in this model
P1.0 CO alarm: Upper and lower limits
2
When entering setup mode, P1.0 and "AL" (Fig. 8) are displayed on the LCD. Press SET key again to enter P1.1
to set the CO2 upper limit. The current setting value will be blinking on the LCD (Fig. 9).
Figure 8
Press UP key to increase the value or DOWN key to decrease. Each press tunes 100 ppm, and the alarm range
is from 100 to 9900 ppm.
CAUTION: It's suggested to set up the alarm value within specification range that accuracy is ensured. The out of
spec readings are only reference and not suitable to use as alarm limits.
When the preferred value is set, press SET key to enter P1.2 (Fig. 10) to set the lower limit. After both settings
are done, press SET key to save or CAL/ESC key without saving and return to P1.0.
Figure 10
P3.0 Temperature scale
Press UP key in P1.0 to access P3.0 to set up the temperature scale (Fig. 11). Press SET key to enter P3.1,
current setting of ºC or ºF will blink on the lower LCD (Fig. 12). Press UP or DOWN key to switch ºC to ºF. Then
press SET key to save the setting or CAL/ESC without saving and return to P3.0.
Figure 11
Figure 9
Figure 12
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