amount of change. This will allow the controller to act sooner. It will turn the heater
to full power before the temperature drops too much
• AT. Auto-tune function. Set AT to 1 then exit the menu. The display will start to
flash alternately between AT and the current water bath temperature, which
indicates auto-tuning is in progress. When the display stops flashing, the
auto-tuning is finished. Now, the newly calculated PID parameters are set and are
used for the system. The new parameters will store in the memory even when the
controller is restarted. For more information about auto-tune, please see section 8
• T, cycle rate. The unit is in seconds. This unit determines how long for the
controller to calculate each action. e.g. If T is set to 10 seconds, when the
controller decides the output should be 10%, it will turn on the heater 1 second for
every 10 seconds. This parameter should set at 2 seconds for heating with an
electric heater.
• R1 and R2. Smoker generator setting. These two parameters determine which
steps to turn on the smoker generator. The smoker generator will stay on only for
the step it is programmed. It will turns off when program goes to the next step. e.g.
When R1=2, and R2=4, the smoker generator will be on during step 2 and 4.
R1=0 or R2=0 means that R1 or R2 will not do anything to the smoker, and the
smoker will not be turned on. Note: R1 and R2 are enabled when the controller is
under multi-step mode (default), and they are disabled under single-step mode.
For details, please check section 10.
To prevent changing critical parameters on accident, an access lock, LCK is used. A
special code is needed to open the lock for these parameters.
This group of parameters is accessed by input code 166. Figure 9 is the flow chart that
shows how they can be changed.
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