Metria 7722 Manual De Usuario página 4

Keypad
· Enters setup mode
· Save and finish settings
· Enters CO
· Enters RH calibration with M
· Exits setup page/mode
· Reset the meter and clear MAX/MIN
· Terminate during calibration
· Select AIR, DP, WBT temp. display
· Select mode or increase value in calibration and setup
· Activates MIN, MAX, STEL, TWA function
· Select mode or decrease value in calibration and setup
2. Operation
Power ON/OFF
Plug in the adaptor and the meter turns on automatically with a short beep. It performs a 30 second
countdown (Fig.1) for meter warm up, then enters normal mode with current CO
readings displayed (Fig.2).
Figure 1
Taking measurement
The meter starts taking measurement after power on and updates readings every second. In the condition of
operating environment change (ex. from high to low temp.), it takes 30 sec to respond for CO
minutes for RH.
NOTE: Do not hold the meter close to faces since exhalation affects CO
AIR, DP and WBT
Press DP/WB to switch temperature display. The lower left LCD will cycle through air temperature, dew point
temperature (Fig 3.) and wet bulb temperature (Fig. 4).
Figure 3
calibration with DP/WB
2
N X /AVG
Figure 2
Figure 4
levels.
2
4
, temperature and humidity
2
sensor and 30
2