Dräger Medical Zeus, Техническая документация инструкция

Страница: 139 / 179

- p ag e 6 -
Zeus 2 005-03 Rele a sed
2. 3 Ele c tri ca l s a fety to VDE 0751
Precondition:
Zeus is s w itched o ff ( ma in s w itch).
5
2. 3 .1 Prote c ti v e e a rth c ondu c tor test [_______OK]
Connect the test probe to the f ollo w in g test points one af ter the other:
Ground stud on the ma ins input soc k et.
Ground stud on the a uxili a ry soc k et-outlets.
PE cont a cts on a uxili a ry soc k et-outlets.
Enter the hi g her test v a lue in the test report.
Test v a lue includin g po w er c a ble: R less th a n/e q u a l to 0.3 oh m s.
Usin g the test probe o f the tester m e a sure the resist a nce to the m et a l p a rts o f the Zeus listed
a bove.
i f a v a il a ble:
S c a n the pusher rods o f the Dr äg er Module DP S (syrin g e pu m ps) usin g the test probe.
2. 3 .2 De v i c e le a k a ge c urrent test
I f the v a lues o f the le akag e current m e a sure m ent exceed 0.9 ti m es the li m it v a lues, the previously
m e a sured v a lues sh a ll be used f or ev a lu a tion. I f the co m p a rison sho w s a n a brupt or continuous
rise, it should be esti ma ted i f the v a lue could exceed the li m it v a lue until the next recurrent
m e a sure m ent.
I f there is ris k o f the v a lue bein g exceeded, chec k f or the possible c a use.
M ak e sure th a t po w er supply le a ds, a ccessories a nd syste m con f i g ur a tion correspond to the
previous tests. Insul a ted inst a ll a tion o f the devices is re q uired.
The device is s w itched on.
5
2. 3 .2.1 Initi a l va lue [______μ A ]
The initi a l m e a sured v a lue m ust not exceed 500 μ A .
E a ch initi a l v a lue m ust be tr a ns f erred to a ne w test report.
5
2. 3 .2.2 Subsequent m e a sure m ent [______μ A ]
IE A less th a n/e q u a l to 500 μ A , but ma xi m u m per m issible devi a tion f ro m initi a l v a lue is 50%.
2. 3 . 3 P a tient le a k a ge c urrent test
I f the v a lues o f the le akag e current m e a sure m ents exceed 0.9 ti m es the li m it v a lues, the
previously m e a sured v a lues sh a ll be used f or ev a lu a tion. I f the co m p a rison sho w s a n a brupt or
continuous rise, it should be esti ma ted i f the v a lue could exceed the li m it v a lue until the next
recurrent m e a sure m ent.
I f there is ris k o f the v a lue bein g exceeded, chec k f or the possible c a use.
M ak e sure th a t po w er supply le a ds, a ccessories a nd syste m con f i g ur a tion correspond to the
previous tests. Insul a ted inst a ll a tion o f the devices is re q uired.
I f the test is c a rried out f or the f irst ti m e, enter the initi a l v a lue in the test report. The subse q uent
m e a sure m ents ma y exceed the initi a l m e a sured v a lue by ma x. 50%, but m ust not exceed the
ma xi m u m v a lue. In the c a se o f initi a l m e a sured v a lues < 2 0 μ A , subse q uent m e a sure m ents ma y
devi a te by up to 10 μ A .