Because there are a lot of parameters to be displayed they have been divided into three
sub screens which can be scrolled using the scrolling arrows. Figure shows the sequence
of the screens along with the parameters displayed on the corresponding screen.
You can save the data of this test by pressing the button. After pressing this button
a message will appear to tell you about the file number. You can press the OK button on
the message box in order to go back to the measurement screen.
5.2 DAR Mode:
DAR(Dielectric Absorption Ratio) is defined as the ratio of insulation resistance at 1
minute divided by insulation resistance at 30 seconds. It is very useful to know the condition
of the insulation. It can be expressed in formula as:
SCREEN 1
SCREEN 2
SCREEN 3
VOLTAGE
AT LEADS
/DUT
VOLTAGE
DURING
TEST
SET
VOLTAGE
DAR
INFORMATION
PI
INFORMATION
SCREEN 1
SCREEN 2
SCREEN 3
VOLTAGE
DURING
TEST
SET
VOLTAGE
DAR
INFORMATION
PI
INFORMATION
13
