J-KEM Scientific 250 Operation & User’s Manual

24, Appendix I. Using the Controller With an Oil Bath Application Note #1 Using your 200-Series controller with an oil bath is usually not recommended. J-KEM manufactures a 400-Series controller designed for use with oil bath and is recommended for this application. The 200-S…

26, J-KEM Scientific 250 III. Resetting the Controller to Original Factory Settings J-KEM manufactures the most technically advanced temperature controller available and should give you consistently flawless control. If you have difficulty with your controller, a good place to start to correct the probl…

8, It’s important to understand that this controller isn’t a simple ON/OFF type controller (i.e. ON when below the set point, OFF when above [though it can be made to work this way, see Section 3.11]). Rather it’s a predictive controller. Based on the shape (slope) of the heating…

17, 0 10 20 30 40 50 60 70 20 45 70 95 120 145 170 Temp C o Time (min) Conditions: 300 ml collidine 500 ml flask 500 ml heating mantle Set point = 45 C Power = 50 - 500 ml (25% power) o Set point = 100 C Power = 300 ml - 2 L (50% power) o Set point = 155 C Power = > 2 L (10…

7, Section 2: Adjusting The Controller For Stable Control With Various Heaters 2.1 What is Tuning. The controller's most powerful feature is its ability to regulate virtually any heater with stable temperature control. For stable control the controller requires two things; (1) the con…

10, Autotune Errors. The autotune routine can fail for several reasons. If it fails, the controller displays the error message “tunE” “FAiL”. To remove this message turn the controller off for 10 seconds. Try the procedure titled “Autotuning the Controller for Very Fine Control” ab…