ATI Technologies AT7016 소유자 매뉴얼 - 페이지 10

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pipes were often used for the earth ground, so it is im-

portant to make sure that your ground connection is

still valid and has not become loose or corroded. The

cold water pipe method may no longer be valid in some

locations due to requirements that the water meter be

isolated from the water mains with a length of PVC

pipe, thus interrupting the ground circuit. The safest,

and most reliable, approach may be to provide your

own ground. This can be accomplished by having a

licensed electrician drive at least five feet of copper-

jacketed steel grounding rod into the earth, and using

that for your grounding connection. If the hum persists

after all of the above suggestions have been tried, con-

tact the ATI customer service department for assis-

tance.

AT7000 Manual

Rev-11/19