7. F—7 User Calibration
A user may perform a user calibration when the CO reading is inconsistent with the actual
CO concentration.
Press the “
” button, the screen displays F-1. Press the “
▲
” button or “
▼
” button until
the screen shows F—7. Press the “
” button, enter into User Calibration. The screen
displays the current CO reading. Press the “
” button after CO reading is stabled, input
correct CO concentration. Press the “
▲
” button or “
▼
” button to process number selection,
long-press the “
▼
” button, then number increase one-digit; long-press the “
▲
” button,
then number reduce one-digit. Press the “
” button to save the Calibration setting
number after confirmed the modified value. The screen displays SUCC and the device will
beep twice. Long-press the “
” button, cancel the setting and return to up one level
menu.
Fourth Common Failure:
1. Can’t start the device and should check whether batteries are normal, whether socket
sheets have oxidized appearance, or please contact the purchaser to seek help.
2. If the instrument no action then maybe the sensor is damaged or the electric circuit
damaged, please contact the distributor or manufacturer for repair.
3. Instrument sensitivity comes to below, maybe it has been high potency shocking, or
harmed by halogen, silicide, these caused sensor poisoning and damage. Need renewal
sensor.
Fifth Notices:
1. Prevent this device fallen from a high place or seriously vibrated. The instrument can’t
be soaked into the water during operation;
2. Maybe unable to normally use this device when existing high potency gas;
3. Please strictly follow the manual to operate and use, otherwise it may be caused
incorrect detect result or damage this device.
Maintain Guarantee Card
Product Name: Carbon Monoxide Detector
Product Model: CO-3
According to stipulates of the national
“New three guarantee”, the whole set
maintains a guarantee of one year (from
the day of purchase). Please safety keeps
this card to be as maintain guarantee
certificate.
Qualified Certificate
Product Name: Carbon Monoxide Detector
Product Model: CO-3
This product qualified after detected, in
accordance with the related stipulates,
approve to leave the factory.
DOEATOOW provides full after-sales service to all customers. If you have any questions or
concerns, please email us via
and we will answer you within 24
hours.
Carbon Monoxide Detector
(CO Alarm device)
Operation Manual
