MEDUSA 3-BUTTON CONTROLLERS

PROGRAMMING

Note:  Turn power switch on and let the unit warm up for 10 minutes before programming.

If the audible alarm  sounds, silence it by pressing the alarm button under the red light.

1.  Press the PROG (program) button.  (Yellow light above PROG button will illuminate).

2.  Press the SET button until the digital display reads the desired aquarium temperature. (Each time the SET button is depressed the display will increase by one degree.  If it is higher than desired, keep pressing until the temperature rolls over at 90º.

3.  Again press the PROG button. The display will read ºF indicating that the temperature display units are in degrees Fahrenheit.  Press the SET button if you wish to change display units to ºC.

4.  FOR TC-200 UNITS (single channel):  Again press the PROG button.  The display will read "CO" indicating the controller is set to control a chiller.  If the display reads "HE", push the SET button to change the display to "CO".

5.  Again push PROG button.  The yellow light will turn off and programming is complete.

CALIBRATION

1.  Measure aquarium temperature with an accurate thermometer.

2.  Press the PROG button.  (Yellow light will come on).

3.  Press the SET button until measured aquarium temperature is displayed.

4.  Press the ALARM button and while holding it down, press the SET button.  Release both buttons.

5.   Press the PROG buttons until the yellow light turns off.  The controller is now recalibrated.