Baur Sys compact 2000 M pro - Performing the TDR Measurement

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 measur
ing
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)