Hazardous (Classified) Locations In Accordance With Article 500, National Electrical Code - 1990 - Telxon PTC-860IM User Manual

In hazardous locations, the PTC-860NI's only user
interface is its keyboard; the accessory ports are not
suitable for use in hazardous locations.
WARNING! Remove the PTC-860NI from the potentially
hazardous area if the unit is damaged or suspected of being
damaged.
WARNING! Remove the PTC-860NI from the potentially
hazardous location should the location become hazardous
due to failure of containment systems, equipment, or other
causes that would expose the unit to volatile substances.
TABLE 1
Hazardous (classified) locations in accordance with Article 500,
National Electrical Code - 1990
Group A:
Group B:
Group C:
Group D:
Flammable gases or vapors
Liquids and gases are in closed containers, or the
systems are handled, processed, or used
Concentrations are normally prevented by positive
mechanical ventilation
Adjacent to a Class I, Division 1 location
Atmospheres containing acetylene
Atmospheres such as acrolein, butadiene, ethylene oxide,
hydrogen, propylene oxide, or gases or vapors equivalent in
hazard to hydrogen, such as manufactured gas
Atmospheres such as cyclopropane, ethylene, ethyl ether, or
gases or vapors equivalent in hazard
Atmospheres such as acetone, alcohol, ammonia, benzine,
benzol, butane, gasoline, hexane, lacquer solvent vapors,
naphtha, natural gas, propane, or gases or vapors equivalent
in hazard
Class I
Division 2
10