BACKLIGHT FUNCTION
(98137(U).98139.98537.98539)
When monitoring CO
2
, Temp. RH in the dark area, press
and hold
UNIT
button for 5 seconds to activate backlight
Press and hold
UNIT
button again to turn off the
function of backlight.
DATALOGGING FUNCTION
(98536.98538.98537.98539)
If you want record the CO
2
concentration, Temp.RH, plug
with supplied USB cable as below to do the on-line logging
function (Model 98137U or 9853x series)
NOTE: Ensure to set up date and time first
Plug mini USB cable onto logger unit, and the male
USB plug onto computer, follow the instruction manual to
install datalogger software.
The main screen shows :
Logger screen On-line logging screen
(98137U only)
9