Protection Function
The Sense reverse protection is always enabled, and the user does not need to
set up or turn on it. In the case of Sense reverse protection, On/Off is turned off.
The user needs to check the wiring conditions of the Sense+ and Sense- termi-
nals on the rear panel, and eliminate abnormal conditions. Press [Esc] key (or
send command PROTection:CLEar) to clear the protection state. The “Sense
Protect” on the front panel of the instrument disappears, and the instrument ex-
its the Sense abnormal protection status.
6.5 Over-Temperature Protection
An Over Temp Protect will occur if:
• The internal temperature of the instrument exceeds 85 degrees
• Fan fault
• The failure of internal temperature sensor.
Clear Over-Temperature Protection
When Over-Temperature Protection occurs, the instrument responds as
follows:
• Instrument output is off.
• The buzzer sounds 3 times intermittently with intermittence of 2 seconds.
• The interface displays “Under Current Protect” or “Fan Failure” and flashes
or the failure of the temperature sensor "Temp Sensor Failure";
• Status register, the OT status bit is set to 1 or FAN_FAIL status bit is set to
1.
To clear the OTP and return to normal operation, firstly remove the conditions
that caused the protection fault. Press [Esc] key (or send the command
PROTection:CLEar) to clear the protection status. The prompt displayed in front
panel is cleared and the instrument exits OTP status.
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