Tektronix TDS3ION Instructions Manual page 7

TDS3ION Battery Charger Instructions
where neither temperature nor humidity is controlled. The area is protected
from direct sunshine, rain, or direct wind.
Pollution Degree 4. Pollution that generates persistent conductivity through
conductive dust, rain, or snow. Typical outdoor locations.
Pollution Degree. Pollution Degree 2 (as defined in IEC 61010-1). Note: Rated
for indoor use only.
Overvoltage Category. Overvoltage Category II (as defined in IEC 61010-1)
General Safety Summary
5