Circutor MI-10KV Technical Specifications And Operating Instructions page 8

M I-10KV
7) Before turning on the apparatus, be sure that the key corresponding
to A scale is pressed. Turn on the apparatus by pressing the ON/OFF
key. Then the high-voltage generator starts operating and the
corresponding indication light turns on at the front panel. The meter
pointer will indicate the value of the unknown resistance. If the element
to be measured is strongly capacitive it will initially indicate a low
resistance value, which will be gradually increased while the charging of
that capacitance takes place.
8) When the measured resistance exceeds the maximum value in range
A, press range B key, and if still the value is not achieved, press keys of
ranges C or Cx10, as required.
9) Always remember to multiply the reading by the factor stated in the
following table, depending on selected test voltage:
1.000 V x 2
2.000 V x 4
5.000 V x 10
10.000 V x 20
10) When key C x 10 is used, reading shall be carried out in range C
and shall be multiplied by 10, in addition to the factor corresponding to
the test voltage.
11) To finish measurement press again and release ON/OFF key. The
megohmmeter will start discharging the potentials accumulated in the
apparatus internal capacitances and in those of the element under test
as well. When this discharging process is over (up to 60 seconds after
turn off) the high-voltage indicator will turn off automatically. Then, test
leads may be disconnected.
12) In certain instances, when the apparatus is disconnected the pointer
exceeds the infinite position to the right side. This is a normal behavior.
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