Metria 77532 Manual Del Usuario página 6

NOTE:
1. If the meter is turned on for shorter than 15 minutes, the STEL value will be weighted average of readings
taken since power on. Same for TWA values that appear before 8 hours.
2. It takes at least 5 minutes to calculate STEL and TWA. The LCD shows "----" (Fig. 6) during the first 5 minutes
from power on.
Figure 6
3. While all readings are held unchanged, STEL and TWA will keep updating every 5 minutes.
Alarm
The meter features an audible alarm to give warnings when CO
setup for setting the alarm threshold). It emits beeps (Abt. 80 dB) when CO
stops when any key (except for SET) is pressed or readings fall below the set value. It beeps again when value
goes over the limit. Please restart the meter if the beeper cannot be stopped.
Auto power off
The meter turns off automatically after 20 minutes of inactivity. To override the function, hold down SET and
HOLD for 2 seconds to turn on the meter until "n" appears.
NOTE: Auto sleep function will be disabled during calibration mode.
Setup
Hold down SET under normal mode for more than 1 second to enter the setup mode. To exit setup, press
CAL/ESC in P1.0 or P3.0 and it returns to normal mode.
NOTE: P2.0 is not applicable in this model
P1.0 CO alarm
2
When entering setup mode, P1.0 and "AL" (Fig. 7) are displayed on the LCD. Press M
setting CO2 alarm threshold. The current set value will be blinking on the LCD (Fig. 8).
Figure 7
Press MODE (^) to increase the value or BKLT (V) to decrease the value. Each press tunes 100 ppm and the
alarm range is from 100 to 9900 ppm. When the preferred alarm value is set, press M
setting or CAL/ESC without saving and return to P1.0.
concentration exceeds the limit. (See P1.0 in
2
Figure 8
6
level goes over the set value and
2
/AV to enter P1.1 for
N X
/AV to save the
N X