ITech IT7900 Series User Manual

System-Related Functions
Copyright ©ITECH Electronic Co., Ltd. 48
3. Set the protection RMS Level, the delay time and protection type in
sequence, and press [Enter] to confirm.
Clear RMS OCP Protection
When RMS OCP protection occurs, the instrument responds as follows:
z Instrument output is off;
z The buzzer sounds;
z The interface displays “OCPrms” and flashes
To clear the RMS OCP and return to normal operation, firstly remove the
conditions that caused the protection fault. Press [Shift] +[Esc] key (or send the
command PROTection:CLEar) to clear the protection status. The message
displayed in front panel is cleared and the instrument exits protection status.
5.5.2 Set the Current Peak protection
The user can set the current peak protection point and delay time for the Current
peak protection function. The function is mainly used to protect the DUT
connected during test to prevent it from damage due to over load. The OCP
peak function is always enabled.
How to Set
1. Press [Shift]+[Config] (Protect) keys and enter to Protection menu.
2. Press the up/down key or rotate the knob to select Current peak protection
and press [Enter].
3. Set the protection peak Level and the delay time in sequence, and press
[Enter] to confirm.
Clear Peak OCP Protection
When peak OCP protection occurs, the instrument responds as follows:
z Instrument output is off;
z The buzzer sounds;
z The interface displays “OCPpeak” and flashes
To clear the peak OCP and return to normal operation, firstly remove the
conditions that caused the protection fault. Press [Shift]+ [Esc] key (or
send the command PROTection:CLEar) to clear the protection status. The
message displayed in front panel is cleared and the instrument exits
protection status.
5.5.3 Set Voltage/Current/Power Limit Range
The maximum voltage, current and power of the power supply ranges from
minimum to full-rated output range. You can setting maximum and minimum
values of power supply voltage/current/power in the protection menu. When limit
setting is finished, the voltage setting value, current setting value and power
setting value can only be set within the maximum and minimum limits.
Limit factory setting is the rated output voltage/current/power of corresponding
model of the power supply. Minimum is 0.
Take the voltage limit setting for an example, the operating as follows:
1. Press [Shift]+[Config] (Protect) keys and enter to Protection menu.
2. Press the up/down key or rotate the knob to select Voltage limit range and
press [Enter].

ITech IT7900 Series Specifications

General

Brand	ITech
Model	IT7900 Series
Category	Power Supply
Language	English