ITech IT7800 Series User Manual

System-Related Functions
Copyright ©ITECH Electronic Co., Ltd. 66
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:
⚫ Instrument output is off;
⚫ The buzzer sounds;
⚫ 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 PROTect:CLEar) to clear the protection status. The message
displayed in front panel is cleared and the instrument exits protection status.
5.6.3 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].
3. Set the V+ limit and the V- limit in sequence, and press [Enter] to confirm.
5.6.4 Over-temperature protection (OTP)
When the temperature of the power component in the power supply exceeds
95°C, the temperature protection will be enabled. In this case, the power supply
will be automatically OFF, and the LCD will display . At the same time, the
OT position in the status register will be set and kept until power supply is reset.
Clearing over-temperature protection:
When the power supply temperature decreases to the protection temperature,
press [Shift]+[Esc] key on the front panel (or send the command
“PROTect:CLEar”). Then on the power supply screen will disappear, and
the power supply will exit the OTP status.
5.6.5 Over-power protection (OPP)
When the output power exceeds the set power, OPP will be enabled, and
will appear on the LCD screen.
Clearing over-power protection:
In the case of over-power protection, disconnect the tested object at first. Press
[Shift]+[Esc] on the front panel (or send the command “PROTect:CLEar”) to
clear on the front panel and exit the OPP mode.

ITech IT7800 Series Specifications

General

Brand	ITech
Model	IT7800 Series
Category	AC Power Distribution
Language	English