Operation
25
4.2.2
Measuring in Fault Mode
4.2.2.1
Preparing Measurement
By selecting the
menu item in the main menu you will reach a sub menu in which
you may preset the maximum measuring current via the
menu item.
In fault mode, the current is increased as linearly as possible over 8 measurements up
to the set maximum value in this case.
If the NIM 1000 is connected to a mains socket (with fusing of up to 16 A), the
80 A setting which has been particularly dimensioned for this type of application
should be selected!
In the case of intermittent faults in particular, it is recommended that you carry out a fault
location at the same time as the fault trips. For this purpose, a suitable reflectometer
must be connected to the same low voltage cable and hooked up to the NIM 1000 via
the trigger output
.
The triggering of the reflectometer takes place at the time of each respective impedance
measurement by means of a short 12 V voltage pulse at the trigger output.
For more details about commissioning and configuring the reflectometer,
please read the accompanying instructions.
Setting maximum
measuring current
Connecting the trigger
output to a
reflectometer
Summary of Contents for NIM 1000
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