Impaired S Afe Ty-Protection - Philips PM3055 Service Manual

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1 .5 IMPAIRED SAFETY-PROTECTION
Whenever i t is l ikely that safety-pro t ec t ion has been impai red , the
i ns trument mus t be mad e inoperat ive and be s ec ured agai ns t any
unintend ed operat ion. The mat ter shoul d t hen be referred to q ual ified
t echni c i ans .
Safety pro t ec t ion i s l ikely to be impaired i f , for exampl e , the
ins t r ument fai l s to perform the intend ed meas ur ement s or s hows vis ib le
damage.
1 . 6 GENERAL CLAUSE S
WARNING : The opening of c overs o r r emoval o f par t s , exc ep t tho s e to
1 . 6. l
The ins t r ument shal l be d i sconnec t ed fr om al l vo l t age s o ur c es before i t
l. 6 . 2
i s opened .
Bear in mind that capac itors ins ide the ins trument c an ho ld their
6. 3
l.
charge even if t he ins t r ument has been s eparat ed from al l vo l t age
s o ur c es .
WARN ING: An y interrupt ion of the pro t ec t ive ear th conduc tor ins ide o r
l. 6 . 4
1 . 6 . 5 Component s wh ich are impor t ant for the s afet y o f the ins trument may
only be renewed by c omponents obt ained thr o ugh yo ur local Ph i l ips
organisat ion. (See al so s ec t ion 1 5 ) .
Aft er repai r and mai nt enanc e in the pr imary c ir c ui t , s afet y inspec t ion
1 . 6 . 6
and t es t s , as ment ioned in s ec t ion 15 h ave to be perfo rmed .
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wh ich acc es s c an be gained by hand , i s l ikely to expose l ive
par t s and ac c es s ib l e t erminal s wh ich can be dangerous to l ive .
outs ide t h e ins t rument , or d i s connec t ion o f t he prot ec t ive
earth t erminal , i s l ikely to make the ins t rument dangerous .
Int ent ional int er rupt ion i s prohib i t ed .