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3 Operating the ITC4000 Series
Derivative (D) parameter:
Change again repeatedly between temperature set points ±1...2°C around your desired target
temperature while observing the settling behavior of the actual temperature.
Increase the D parameter gradually by turning the adjustment knob (F8) clockwise.
Higher values will decrease the amplitude and number of overshoots. Too high values will in-
crease again overshoot effects or will even lead to an unstable system. The D parameter is set
correctly when the actual temperature settles at a value close to the temperature set point after
a minimum of overshoots. Due to the disabled Integral constant, a temperature deviation may
remain.
Integral (I) parameter:
Change again repeatedly between set temperatures ±1...2°C around your desired target tem-
perature.
Increase the I parameter gradually by turning the adjustment knob (F8) clockwise.
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