3M Macurco Directives D'utilisation page 7

Transient CO situations can occur in the following situations:
1. Excessive spillage or reverse venting of fuel burning appliances caused by outdoor ambient conditions, such as:
a) Wind direction and/or velocity, including high gusts of wind. Heavy air in the vent pipes (cold/humid air with
extended periods between cycles).
b) Negative pressure differential resulting from the use of exhaust fans.
c) Simultaneous operation of several fuel-burning appliances competing for limited internal air.
d) Vent pipe connections vibrating loose from clothes dryers, furnaces, or water heaters.
e) Obstruction or unconventional vent pipe designs, which can amplify the above situations.
2. Extended operation of un-vented fuel burning devices (range, oven, fireplace, etc.).
3. Temperature inversions, which can trap, exhaust gasses near the ground.
4. Car idling in an open or closed attached garage, or near a home.
CAUTION: This detector will only indicate the presence of carbon monoxide gas at the sensor. Carbon monoxide gas may
be present in other areas. Accommodation spaces should be well ventilated when household cleaning supplies or similar
contaminants are used.
CAUTION
• Avoid the use of harsh cleaning materials, abrasives and other organic solvents. Such materials may permanently
scratch the surface, damage the sensor, labels, or instrument housing.
• If you have any doubts about the applicability of the equipment to your job situation, consult an industrial hygienist
or call 3M at 1-800-243-4630. In Canada, call Technical Service at 1-800-267-4414.
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