Barco ULC-30A, Руководство по обслуживанию

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1. Safety
7. Do not spray chemicals on or near the chiller or any of its assemblies.
8. Electrostatically Sensitive (ES) Devices. Some semiconductor (solid state) devices can be damaged easily by static electricity.
Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated
circuits and some
fi eld-effect transistors and semiconductor "chip" components. The following techniques should be used to
help reduce the incidence of component damage caused by static electricity:
a) Immediately before handling any semiconductor-equipped assembly, drain off any electrostatic charge on your body by
touching a known earth ground. Wear a commercially available high impedance discharging wrist strap device.
b) After removing an electrical assembly equipped with ES devices, place the assembly on a static dissipative surface such as
a 3M No 8210 table mat, to prevent electrostatic charge buildup or exposure of the assembly.
c) Do not use freon-propelled chemicals. These can generate electrical charges suf fi cient to damage ES devices.
d) Do not remove a replacement ES device from its protective package until immediately before you are ready to install it
(Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminium foil or
comparable conductive material).
e) Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed. CAUTION: Be sure no power is applied to the chassis
or circuit, and observe all other safety precautions.
f) Minimize bodily motions when handling unpacked replacement ES devices (Otherwise harmless motion such as the brush-
ing together of your clothes fabric or the lifting of your foot from a carpeted fl oor can generate static electricity suf fi cient to
damage an ES device).
R5906015 ULC-30A 01/02/2018 5