Operating Instructions

How to Start the automatic tuning procedure

STEP 1: Energize the unit and proceed immediately to step 2.

STEP 2: Place the unit on standby by holding the "Index" button until the "Autotune" LED lights then press the Cancel button.

The unit is now ready for set point and cycle time entry.

STEP 3: To enter a set point: A) Hold "Index" button until the SP LED lights and B) Use the appropriate touch key, either up or down to enter set point.

When you've entered the desired set point, simply press the enter key. NOTE: Set point must be at least 100°F above ambient.

STEP 4: Set cycle time by advancing "Index" to "HC" and select desired value using up or down keys. Cycle time is shown in seconds, from 1-120. Setting zero initiates a 60 millisecond cycle time for ultra fast cycling for use with "F" or "S" output modules. For mechanical relays or contactors use l0-120 seconds. When you've found the desired cycle time press the enter key.

STEP 5: To start warm up and calculate all PID parameters advance Index to auto tune again and press the "tune" button.

The "AT" L.E.D. will light and "HT" L.E.D. will light. You may now index to any parameter for viewing as process heats. Upon completion of tuning, the "AT" L.E.D. will be off.

NOTE: The parameters that the 6050 calculates automatically can be entered on the Athena 6000/6200 to achieve the same smooth and precise temperature control on your process.