EM TEST Compact NX5
Operating Manual V 1.06 82 / 143
Synchronized with a fixed phase angle
The burst is triggered with respect to the phase angle of the
power supply connected to the Sync input at the rear panel
of the equipment. The power supply must be an AC voltage
with a nominal frequency of 16 to 500Hz. The phase must
be connected to L. This can be checked by the lamp
connected to the L input.
Random burst release
No repetition rate is selected. The single burst will be
triggered by statistics in the limits of 20 to 2000ms as time
between two bursts. All limitations are the same as defined
under Quick Start.
Max Burst impulses / s
Burst spike limit:
The pulse switch is a highly reproducible semiconductor switch. Spike frequencies up to 1000 kHz are by a factor
of 10 higher than recommended in the actual EFT standards. This means of course that also the pulse energy
would be 10 times higher. This is not generally possible for the high voltage switch. Therefore the following
limitation protects the pulse forming circuit against overload:
Burst impulses / s
Max. pulses / s
continuous burst
2'000 V
3’000 V
4’000 V
5’000 V
5’500 V
Error message :Cannot Start
The maximum energy of the burst impulses is limited to 30 J per
second. This value is calculated by the formula:
In case of this message the user must reduce the energy by changing at least one parameter
Reduce:
- Burst duration (Td)
- Repetition frequency (f)
- Voltage (V)
Increase:
- Burst period (td)