Display Button; Graph Button; During A Measurement; After A Measurement - AEMC 6550 User Manual

2.4.4 DISPLAY Button

This button is used to browse through the various accessible screens containing all information available
before, during or after the measurement. Depending on the measurement mode and the configuration chosen
(CONFIG button), the screens are different.

2.4.5 GRAPH Button

During the measurement, and at the end of each measurement, pressing the GRAPH button displays a
graphical presentation of the measurement results. On the first screen, the insulation resistance vs. time R(t)
and the voltage vs. time V(t) are shown.
Insulation resistance axis
Curve R(t)
Time axis
This curve is plotted using samples recorded during the measurement.

2.4.5.1 During a Measurement

There is no cursor. Each new measurement result is automatically added to the curve and its values are
shown in one line above the graphical area.

2.4.5.2 After a Measurement

The time indication in the upper right of the screen is blinking, this is the indication for cursor mode.
The ◄ ► arrow buttons can be used to move the time cursor along the curve. The minimum and maximum
values at the cursor position are shown in two lines above the graph area. If the time span on the time axis is
4 minutes (which is the smallest possible) these lines are the same and represent one sample.
Depending on the range of the left vertical scale it may be possible to move the vertical scale and the
corresponding curve with the ▲▼ arrow buttons.
16
Shop for AEMC products online at:
GRAPH
508 V 3.018 GΩ
508 V 3.018 GΩ
MΩ
3050
3000
2950
2900
2850
0 1:00 2:00
ShopAEMC
www.
Minimum and maximum values of the
voltage and the resistance and time
at the location of the cursor
00:01:00
00:01:00
V
Test voltage axis
510
Curve V(t), identified by x's
500
490
480
470
3:00 4:00
.ca
Megohmmeter Models 6550/6555
1.877.766.5412