Instruction manual

-11-
(For special order units with the following controller.)
OPERATION OF HONEYWELL UDC-2000 SERIES CONTROLLERS
THIS IS INTENDED ASAQUICK REFERENCE GUIDE AND SHOULD NOT BE SUBSTITUTED
FOR READING THE PRODUCT MANUAL. THE PURPOSE OF THIS SHEET IS TO GET YOUR
FURNACE RUNNING AND SIMPLIFY OPERATION IN THE BEGINNING.
Your instrument has been calibrated and tuned at the factory prior to shipping. There should be
no need for further adjustment in the field.
To begin with, the UDC-2000 is relatively simple to operate. To start the furnace, press the start
button or flip the toggle switch. Then your instrument will power up and you will see the Process
Temperature displayed and either an “F” or “C” beside it, depending on the configuration requested. To
enter a setpoint, press the display button marked DISP The letters SP will appear in the lower left
corner and the process temperature will be replaced by the setpoint value.
To enter the setpoint press the up or down arrows, and the value will begin to change in one
degree increments. This process can be speeded up by pressing the opposite arrow while holding the
first one in. Press once and the setpoint will increase by 10’s; once again and it will increase by 100’s.
Once you have obtained your desired setpoint, that is all you have to do. To return to Process or
Chamber Temperature Display, press RESET once and the process value will be displayed. If you do
nothing, it will return to Process value in about 1 minute. This is all you have to do. The furnace will
begin heating immediately.
INDUSTRIAL FURNACES WITH HIGH LIMIT
Once you have followed the steps above, you must also enter a setpoint value in the High Limit
instrument. If the instrument display reads LIMIT you must first press RESET button. Then press the
display button marked DISP, and once again, as with the control instrument, SP will appear in the lower
left of the display, and what was your process value or chamber temperature will now become your
setpoint value. Enter a setpoint approximately 10° higher than the setpoint in the control instrument.
Once you have obtained a setpoint value the display will return to Process value in about 1 minute. If
the high limit instrument is engaged, the main contactor will be released and the display will read LIMIT.
It must be reset after the process temperature goes below the setpoint to restart the furnace.
If you have any questions, please feel free to call McEnglevan or Honeywell’s toll free number
found inside the front cover of the instrument operating manual.