Over-Temperature Protection (Otp); Sense Reverse Protection - ITech IT6000C Series User Manual

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4.5.6 Over-Temperature Protection (OTP)

Possible Cause
How to Set

4.5.7 Sense Reverse Protection

When internal temperature of instrument is higher than about 90 °C, the instru-
ment is under temperature protection. At this time, the instrument will automati-
cally be OFF and VFD status indicator Prot lights up and the screen prompts
OTP.
To prevent damaging heat build-up and ensure specified performance, make
sure there is adequate ventilation and air flow around the instrument to ensure
proper cooling. Do not cover the ventilation holes on the rear panel, sides, or
bottom of the instrument. Even with proper ventilation, the instrument can over-
heat in the following situations.
•
If the ambient temperature is too high.
•
If you use the instrument to test for long periods.
The OTP limit does not need to be set, and the internal device of the instrument
automatically detects and determines whether to enter the OTP state.
If an over-temperature condition occurs, power off the instrument and allow it to
cool for at least 30 minutes. After the internal temperature of the instrument has
cooled down, power it on again.
When you return power to the instrument, verify that the cooling fan is
running. If not, please contact ITECH Technical Support. Leaving the
instrument powered on with an inoperative cooling fan may result in
damage to the instrument.
The instrument defaults to provide sense reverse protection. When the output
state is ON and the difference between output terminal voltage and sense re-
mote voltage exceeds the specified voltage, sense reverse protection will be en-
abled after 500ms. The instrument output will be immediately switched to Off
and the display screen will display Sense Reverse Prot if the sense terminals
are reversed.
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Power Supply Function
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