CHAPTER 3 BASIC OPERATION
3-22
3.11 Requests during Operation
1) About four seconds is required for outputs to turn ON when the power
is turned ON. Takethis into consideration when the temperature conĆ
troller is incorporated into a sequence circuit.
2) Allow at least 30 minutes for warming up.
3) When self-tuning is used, turn the temperature controller and load
(e.g. heater) ON simultaneously or turn the load ON before the temĆ
perature controller. If the load is turned ON before the temperature
controller, correct self-tuning and optimum control are no longer
possible.
When operation is started after warm-up, turn the power OFF once
after warm-up is completed, and then turn the temperature controlĆ
ler and load ON simultaneously. (Instead of turning the temperature
controller power ON again, moving from the STOP to the RUN mode
also is possible.)
4) The temperature controller may be subject to the influence of radio
interference if used near a radio, TV or wireless equipment.
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