5. BATTERY REPLACEMENT
1)Replace the batteries when the left corner of the LCD
displays the low battery icon " ".
2)Prepare 4 fresh 1.5 V ( UM4, AAA ) batteries.
3)To change the batteries, open ( rotate clockwise direction )
the " Battery Cover " ( 3-6, Fig. 1 ).
4)Make sure the " Battery cover " (3-6, Fig 1) is secured
after changing the batteries.
6. CO VALUE VIA HEALTH
INFORMATION
0 to 1 PPM
General environment
9 PPM
Max. exposure time : 8 hours
* United States Environmental Protection Agency
35 PPM
Max. exposure time : 1 hour
* United States Environmental Protection Agency
50 PPM
Max. exposure time : 8 hour
* OSHA
100 PPM
Max. exposure : 100 minutes
* Circulation air
* UL2034
200 PPM
Headache, tired : Two to three hours
Max. exposure : 35 minutes
* UL2034
400 PPM
Headache, tired : One to two hours
Harm the life : Three hours
Max. exposure : 15 minutes
* UL2034
800 PPM
Headache, tired : 45 minutes
Death : Two to three hours.
1600 PPM
Death : One hour.
Attention :
* TAbove health information are for reference only.
* TThe different age, sex, weight and personal heath condition
will get the different effecting.
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1001-PCO350
