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8.1. Test voltage definition
In order to define the test voltage value, first it is necessary to select one of
voltage adjustment keys:
Ι
,
ϑ
or
Κ
. These keys enable both the pre-
programmed voltage selection (
Μ
,
Ν
,
Ο
and
Π
) and the
Θ
and
Ρ
keys
which increase or decrease the value of the step voltage test for 25V, 100V
or 500V, depending on the selected voltage adjustment key. As long as the
equipment is on, the voltage adjustment key
Κ
will be selected. Please,
press again the adjustment key selected at the moment with the aim of
leaving the test voltage selection mode.
Note: Test voltage is the only one parameter that may be modified during
tests.
8.2. Selection of the operation mode
The MD-5075x megohmmeter has four operation modes: Normal, with
“TIMER”, SVT and “Pass / Fail”. The first three modes are selected using
the
Η
key; the “Pass/ Fail” test mode is activated pressing
Λ
key.
8.2.1.
Normal mode
The normal mode is used in the resistance measurement with unique
voltage, without time limit. When selected, there are no special indications
in the display.
8.2.2.
“TIMER” Mode
The use of
Η
key allows the MD-5075x setting for the performance of a pre-
set - duration test; when this mode is selected, the display shows the
programmed time. Use
Θ
and
Ρ
keys to define the duration of the tests in
30 seconds, 1 minute, 3 minutes, 10 minutes or 30 minutes.
