Baur PGK 110 HB, Руководство по эксплуатации, Страница: 20 / 34

3. Placing into Operation
3-2
Connect to earth
It is absolutely necessary to connect the H.V. unit to earth and to
the test object via one of the two earthing screws on the base plate.
The earth lead should be as short as possible and must have a low
impedance (min. cross-section of 4 mm², copper).
•••••
Isolate all connections from the test object, secure against
repeated switch-on and make sure that zero voltage condition
exists.
•••••
Insulate nearby items which are under voltage.
!
It must be assured that nearby items under voltage do
not result in breakovers or breakdowns, due to
applying the test voltage to the test object.
•••••
Insert rectification resp. resistor bar (option with PGK 260 HB)
according to the desired operating mode.
•••••
Connect operating unit and H.V. unit.
•••••
Install H.V. connection to the test object.
•••••
Connect instrument to mains according to specifications on type
plate.
•••••
Turn variable transformer (11) to the left position.
•••••
Set measuring range selector switch for the kV-meter (10) to „II“.
•••••
Set measuring range selector switch for the mA-meter (8) to the
highest range in order to avoid damage to the instrument.
Short overloads (breakdowns and short-circuits at the test
object) are no danger to the mA-meter if ten times the value of
the relevant measuring range is not exceeded.
•••••
Turn mode selector switch (9) to selected operating mode
(„+“, „-“ or „-“).
Prepare test