Technoline WL 1040 Manual De Instrucciones página 17

To interchange the display of time and CO
Press the
constant large CO
auto-alternate time
heard and the
constant large time display. The
To calibrate the CO2 sensor
This monitor is factory calibrated to a 400 PPM CO2 standard
concentration.
Caution: Do not manually calibrate the monitor in an environment of
unknown CO2 concentration.
Automatic baseline calibration: your clock is equipped with a smart chip
so that it will automatically calibrate itself to reduce the drift of the CO
sensor for long time usage. It will calibrate itself automatically at the
minimum CO reading detected during 7 days of continuous monitoring.
2
Important note: make sure the place you put your clock at is well ventilated
(with a CO level near 400 PPM) for at least an hour or so everyday, or you
2
move the clock to such a well ventilated room for an hour or so everyday to
perform Automatic Baseline Calibration.
Manual calibration of the CO
It is recommended to undergo manual calibration performed by a qualified
laboratory every 12 months.
•
Place your CO
and wait for 2.5 minutes until the first
•
CO reading is displayed. Then press and hold
2
flashes as below. In around 20 minutes, the blinking will stop and the
calibration is completed. Your clock will return to normal display mode.
button once to change the constant large time display to
display. Press this button once again to activate the
2
CO2 display in every 5 seconds (a short beep will be
icon appears). Press this button once again to revert to
monitor in a 400 PPM calibration chamber. Power it on
2
icon disappears.
Sensor
2
EN6
reading
2
until "CAL"
2