Sper Scientific 800046 Indoor Air Quality Meter - Manual (Page 8)

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MEASUREMENT PROCEDURES
Air, Dew Point and Wet Bulb Temperature
Press SET to turn the meter on and off. The meter emits a
short beep, performs a 30-second countdown and then
displays current CO
2
, temperatures and humidity readings.
The meter starts acquiring measurements and updates its
readings every second. In environments where conditions
change (i.e., from low to high temperature), it takes the
meter’s sensor 30-seconds to respond for CO
2
and 30
minutes for RH.
Note…
Do not hold the meter close to your face while taking
measurements because exhaling affects CO
2
levels.
Power On/Off
Press DP/WBT to switch temperature modes. The lower left
of the LCD display cycles from air temperature to dew point
temperature to wet bulb temperature.