UEi Test Instruments AQM4 - Manual (Page 6)

5
Freezes the current readings. Selects
unit or increases value in setup.
Cancels data hold function.
Press to manually record the
reading. Selects unit or decreases
value in setup.
Displays MIN, MAX, TWA, STEL
function. Saves and finishes settings
while in sleep mode.
KEYPAD CONT.
OPERATION
POWER ON/OFF
Press to turn the meter on and off. At
power up, the meter emits a short beep and
begins 30 second warm-up countdown
(Fig. 2), then enters normal mode with
current CO² and real time displays (Fig.3).
NOTE:
THE REAL TIME DISPLAYS DATE
(YY-MM-DD) AND TIME IN SEQUENCE.
TAKING MEASUREMENT
The meter starts measurements when
powered on and updates readings every
second. In the condition of an operating
environment change, (ex. high to low temp)
it takes 30 seconds for the CO² sensor to
respond and 30 minutes for RH sensor.
NOTE: DO NOT HOLD THE METER IN
CLOSE PROXIMITY TO THE FACE AS
EXHALED BREATH AFFECTS CO² LEVELS.