DATA HOLD
Press to freeze the readings,
"HOLD” icon is displayed on the left
top of LCD(Fig.6). All current readings
are kept unchanged, except STEL and
TWA. Press again to cancel the
hold function.
%
O
HOLD
CO
2
Fig.6
BACKLIGHT
Hold down for more than 1 second
to activate and cancel backlight function.
MIN,MAX,STEL,TWA
Under normal mode, press to see
the minimum, maximum, and weighted
average readings. Each press of ,
it displays MIN, MAX, STEL, TWA in
sequence and returns to normal mode.
In MIN and MAX modes, it shows the
minimum and maximum readings of
CO on main display and of AIRor Dpor
2
WB temperatures and humidity
on the lower displays. (Fig.7)
N
X
M /AV
%
O
CO
2
Fig.7
In STEL and TWA modes, the main
display shows the
(STEL) and 8 hours(TWA).
weighted average of
CO
readings for the past 15 minutes
2
The lower
displays are the current AIR, DP/WB
temperatures and humidity. (Fig.8)
5
N
X
M /AV
