Athena PIM Instrukcje Operacyjne Pobierz pdf (Strona 9)

C. Manual Open-Loop Operation

1- Position the mode select switch to open-loop (“ ”).

2- Turn the AC power on.

3- After reset delay, the controller will display the percent-

age of output power as adjusted by the power control

knob. The percentage power indicator will be on. Thus

0.00 corresponds to 0% (no power) and 1.00

corresponds to 100% (full power). The leftmost digit will

display open-loop mode ( “ ” ). 75% power is shown

as 0.75.

D. Manual Control Pre-Set

The following procedure can be used to pre-set the Manual power

control knob position in the event of a thermocouple break in

closed-loop operation.

A good thermocouple is required to start with, as this procedure

compares the temperature attained using automatic (closed-loop)

control with that obtained using manual (open-loop) control.

When the temperature is the same using either automatic or

manual control, then the position of the Manual power control

knob is correct.

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Athena PIM Instrukcje Operacyjne Strona 9