Usměrňovačové systémy DC-Měniče Střídače UPS systémy ...
Poznámky redaktora
), the
polarity mains voltage reversed autem aticaNy (indinated I"y: ''L/N" "N/L"). For this, connect the test cable
to the yellow "Sonde Probe" jack.
This also applies devices protection class with accessible conductive parts which are not
connected the protective conductor.
Protective conductor easurem ent /
differential current eesurem ent method:
DIN 0701 -0702 (protection classes I-II)
B 750 Appliance Tester
1 differential current easurem ent
2 test socket, test cable
3 test sam ple
Protective conductorm eaourem ent /
differential rurrent easurem ent method:
DIN 0702 (protectinn clas sesI- I
B 750 Applian Tester
1 leakage current clam (mA)
2 test sam la
Contact current easurement:
DIN 701 -0702 (protection classes l-IT
B 750 Appliance Tester
1 differential current easurem ent (mA)
2 test: socket, test cable
3 test cable, connected "Probe"
4 test sam ple
M easuring rre t
For devices ofprotection classes with accessible conductive parts for which there are objections
to easuring the insulating resistance for which impossible interrnpt operation, the contact
current measured eans the differential currant easurem ent method (DIN E
0 701 -0702 ¡and DIN 0751-1). the determ ined easured
values «are entered the corresponding menu fth EPENNIIMG 750 Appliance Tester, they will
be listed the test record well. For aasurem ent,the test: sam ple must: Ire operated both
at neminal voltage and with reversed polarity.
In the "Clam sub-m enu, also possible sbe differential currenb easurem ents eans
of external current measuring clsmb. [During the autom atic test procedure iff.
Device leakage rrent easu rement
(Diff) (Clamp):
DIN VDEE l-1 (fcrotectien classes I-II)
B 750A l¡an Tester
1 differentiAl curreet easurem ent (mA)
2 teet socket, test cable
3 "Probe" jack
4 testsam pler
e_ «
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ptvbe —
H
e rre u
For medical electrical devices protection class might necessary easure the
leakage currents ofaccessible conductive parts, which are not connected the protec
tive conductor, separate measurem ents. tes° socket the appliance tester intended for
supply (230 A).), the polarity the mains voltage
is reversed autom atically (indicated by: „"L/N" "N/L"). Three- phase devices shall
be supplied via cerresponding adaptere (see "Optional Accessories").BENNING 750 A
M easuring pro tec tive cto rre t
For devices protection class for hirh cannot guaranteed that all parteuubjected mains
voltage are rovered the insulating resistance easurem ent for which the insulating resistance
m easurem ent cannot mad easurem ent fth protective conductor rrent according DIN
V 0701 -702 est carried out differential crrrenr easurem ent For easurem ent, the test
sam ple rnt operated both nominal voltage and wita reversed polarity. During easurem ent, the accessible conductive parts must scanned in
both ain larity irec tio eans the safety probe tip. the appliance tester ,ntended for
supply (230 A). For easurem ent, the test sam ple must operated both
at nominal voltage and with reversed polarity.
D evice leak rre for medical electrical devices
For edicalelectrical devices, the device leakage currents can measured eans the dif
ferential current easurem ent method. During the autom atic test procedure iff.
08/ 2012 /58
. The test socket the
appliance tester intended for scpply (230 A). SinN e-phase device can supplied via the test
socket fth BENN ING 750 means larity reversal device
