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Operation
8
3.4. Push
Buttons
Pressing the MANUAL/AUTO FAN button will force the FAN relay to activate. The FANs will
stay ON until the button is pressed again. A MAN icon on the LCD display indicates whether the
manual FAN ON function is active. Pressing the button to release the MANUAL FAN function,
while the temperature is above the FAN ON set point, will turn OFF the MANUAL FAN icon on
the LCD but will NOT turn OFF the FANs. Thus, the MANUAL FAN button can force the FANs
ON but cannot force the FANs OFF.
Pressing the SILENCE/TEST button while the buzzer is sounding will silence the buzzer until
the next new alarm condition occurs.
Pressing the SILENCE/TEST button while the buzzer is not sounding will start a TEST
sequence. The TEST sequence does the following at two-second intervals:
Displays the FAN ON temperature set point and lights the FAN LED.
Displays the ALARM temperature set point and lights the ALARM LED.
Displays the TRIP temperature set point and lights the TRIP LED.
Displays the RELAY 4 temperature set point and lights the RELAY 4 LED.
Displays the RELAY 5 temperature set point and lights the RELAY 5 LED.
Displays the ambient temperature inside the ITM.
Displays 888 on the temperature display, turns on all icons on the display, turns on all relay
status LEDs, and turns on the buzzer.
Pressing the MAX TEMP RESET button will clear the memory of the maximum stored
temperature causing the current winding temperatures to become the new maximum stored
temperature for each channel.
