General Tools and Instruments DCO1001 - Manual (Page 2)

INTRODUCTION
Features
• Adjustable CO warning level
• Dual digital display
• Backlight
• Low battery
• Auto power off function
• Wrist strap.
CO LEVELS & THEIR EFFECT
PPM Symbols and applicable standard.
0-1 Maximum background levels
9 Maximum indoor air quality level:
Maximum allowable concentration per ASHRAE Resi-
dential standards 62-1989 for living area.
25 Maximum limit 8 hrs of continuous exposure per Cali-
fornia OSHA workplace standards.
35 Maximum 8 hrs average exposure level per US OSHA
workplace standards.
50 Maximum concentration for continuous exposure in
any 8 hrs average level per OSHA standards.
100 Remove employees from enclosed space if the CO con-
centration exceeds 100ppm per OSHA exposure limit.
200 Mild headache, fatigue, nausea and dizziness w/i 2-3
hrs.
400 Frontal headache, life threatening after 3 hrs. Maximum
concentrations in flue gas the US EPA and AGA
standards.
800 Dizziness, nausea, convulsions, death w/I 2-3 hrs.
1600 Nausea w/i 20 min., death w/i 2-3 hrs.
SPECIFICATIONS
1. CO range: 0~999PPM
2. Resolution: 1 ppm.
3. Accuracy: +/- 20% at 0~100 ppm
+/- 15% at 100~500 ppm
(at 20 +/- 5°C, 50 +/- 20%RH)
4. Battery: 3AAA alkaline. Battery life is 250
hours when the backlight is off and 35 hrs
when the backlight is on.
ACCESSORIES INCLUDED
(3) AAA alkaline batteries, Operation manual,
Wrist Strap & Carrying pouch
WARRANTY
The meter is warranted to be free from defects in material
and workmanship for a period of one year from the date
of purchase. This warranty covers normal operation and
does not cover battery, misuse, abuse, alteration, neglect,
improper maintenance, or damage resulting from leak-
ing batteries. Proof of purchase is required for warranty
repairs. Warranty is void if the meter has been opened.
RETURN AUTHORIZATION
Authorization must be obtained from the supplier before re-
turning items for any reason. When requiring a RGA, RMA
(return authorization), please include data regarding the
defective reason, the meters are to be returned along with
good packing and insured against possible damage or loss.
1 6