Functions and Features
proper cooling. Do not cover the ventilation holes on the top, sides, or bottom of
the instrument.
Even with proper ventilation, the instrument can overheat in the following
situations
• If the ambient temperature is too high;
• If you use the instrument to test for long periods.
Over-temperature protection is a protective measure implemented when the in-
ternal temperature of the instrument exceeds 85 degrees. Once the over-tem-
perature protection has been triggered, the output will shut down and VFD
shows “Over Temp Prot”.
If an over-temperature condition occurs, turn off the instrument and allow it to
cool for 30 minutes. You cannot turn the output on until the instrument cools
down. Press [On/Off] key to turn the output on.
When you return power to the instrument, verify that the cooling
fan is running. If not, please contact ITECH. Leaving the instru-
ment turned on with the failure message displayed or with an in-
operative cooling fan may result in damage to the instrument.
4.3.8 Set foldback protection
This series of instruments has a Foldback protection function, which is used to
turn off the output when the power supply CV / CC is switched, so as to protect
certain DUTs that are sensitive to voltage overshoot and current overshoot.
Foldback protection allows the user to specify a working mode and set the
protection delay time. If the current working mode is switched, the protection will
be triggered from the working loop switch. When the delay time is exhausted,
the protection will be triggered and the output will be turned off.
• Enable FOLDBACK function;
• The loop is switched to the set working mode and the duration is greater
than the set protection delay time;
When foldback protection occurs, the instrument responds as follows:
• Instrument output is off;
• The buzzer sounds intermittently;
• The interface displays “Foldback Protect” and flashes;
• Status register, the Foldback status bit is set to 1.
Copyright © Itech Electronic Co., Ltd.
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