Syscompact 2000 M pro
Cable fault pre-location
822-175-2
55 / 98
Pre-location
parameters
Settings
Function
Pulse width
20 ns – 10 µs
Is used to set the pulse width
The pulse width is set automatically depending on the measuring
range. Narrow pulses have high resolution, however, they have a
lower range due to the higher damping. They are especially
suitable for shorter cables. When using wide pulses, the range
increases and the resolution decreases.
Voltage
10 – 60 V
Is used to set the pulse voltage
Impedance
10 – 250 Ohm
Is used to set the output impedance
Automatic cursors
On/Off
Enables or disables the automatic placement of cursors
When
On
is selected, a cursor is placed automatically after a
measurement if the cable end or a cable fault is detected.
Voltage proof
(Can only be set with TDR
methods
TDR
and
TDR
Continuous
)
On/Off
Enables and disables the input protection of the time domain
reflectometer
If
On
is selected, the input protection is activated up to AC 400 V;
measurements are possible on live cables up to AC 400 V.
Before each measurement on live cables, check whether
the fuses on the terminals of the TDR connection cable are
working.
If the TDR connection cable is used without a fuse or with
another type of fuse, the IRG 2000 must not be connected
to a live cable.
Trigger current level
(Can only be set with TDR
method
TDR Trigger
)
10 – 1000 A
Is used to set a threshold value for current that is detected by an
external measuring device connected to the
Trigger Input
port. If
this threshold value is exceeded, the IRG 2000 performs a
measurement.
12.3.4 Performing the TDR measurement
Prerequisites
The IRG 2000 is used as an independent device.
Further information: Chapter
Using the IRG 2000 as an independent device
(on page 42)
The TDR connection cable is connected to the IRG 2000 and the test object correctly.
Further information: Chapter
Connecting the TDR connection cable to the test object (IRG
2000)
(on page 37)
For measurements on live cables: Chapter
Safety instructions for connecting the IRG 2000
to the live cable
(on page 37)
The general pre-location parameters and the TDR parameters have been set.
Further information: Chapter
Setting the general pre-location parameters on the IRG 2000
(on page 52),
chapter
Setting TDR parameters
(on page 54)
Summary of Contents for Sys compact 2000 M pro
Page 97: ......