ITech IT-M3900B Series User Manual page 178

Level rise slope
Level fall slope
Minimum time width
for low level keep
•
Pulse input: When the instrument is under protection, the instrument will
clear protection after receiving the pulse signal from external input.
1. Refer to the figure below to connect pin 1 to the external oscilloscope.
2. Confirm that pin 1 function is set to the default option, namely
IO-1. Ps-Clear, Not-Invert.
3. Taking OVP as an example, set the protection point of OVP.
4. Build the test environment to enable the instrument to enter the OVP
state.
5. Send pulse signal to pin 1.
6. Check whether the protection state of this instrument is cleared.
•
Pulse output: When the instrument's protection state is released, and
[On/Off] is from Off to On, pin 1 will send a pulse signal to the external
instrument.
1. After confirming that the instrument's OVP protection is cleared, man-
ually turn on [On/Off].
2. Check the oscilloscope and confirm whether pin 1 has pulse output.
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