EFT Simulator Duration Time Setting / IEC 61000-4-4 / KeyTek CE 40
Does anyone know what the time symbol they are showing there is?


I haven't used that equipment. However one guess is that 15 pls on the menu is 15 pulses (at the set period etc.).

To help to confirm/deny that guess, I would use a small voltage setting, configure an appropriate oscilloscope probing setup for that voltage, and I would view what simulated noise the device puts onto its output. Do you see 15 pulses?

Then see if changing that "pls" value on the menu does change the number of pulses - i.e. reverse-engineer the meaning of that menu setting, by fixing all values except that one, changing that one setting and observing the output.