J-KEM Scientific Gemini User Manual - Index
INDEX
SECTION
PAGE
1. QUICK OPERATING INSTRUCTIONS
. . . . . . . . . . . . . . . . . . . . . . 4
KEM-NET DATA LOGGING AND CONTROL SOFTWARE . . . . . 5
2. ADJUSTING THE CONTROLLER FOR STABLE
CONTROL WITH DIFFERENT HEATERS . . . . . . . . . . . . . . . . . . . . 6
2.1
What is Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2
Autotuning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3
Tuning for Heating Mantles: A Special Case . . . . . . . . . . . . . . . . 9
2.4
Sensor Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3. OPERATIONS GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1
Front Panel Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2
Heater Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3
Ramp-to-Setpoint & Soak Feature . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.4
Over Temperature Protection Circuit . . . . . . . . . . . . . . . . . . . . . . . 14
3.5
Timer Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.6
Output Power Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.7
Temperature Sensor Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.8
Affect of Power Setting on Heating Profile . . . . . . . . . . . . . . . . . . 17
3.9
Do's and Don'ts When Using Your Controller . . . . . . . . . . . . . . . . 18
3.10 Resetting the Controller for use With Heating Mantles . . . . . . . . . 19
3.11 Changing the Temperature Display Resolution . . . . . . . . . . . . . . . . 19
3.12 Changing Between PID and ON/OFF Operating Modes . . . . . . . . 20
3.13 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4. APPLICATION NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.1
Theory of How the Controller Works – Simply
. . . . . . . . . . . . . . 23
4.2
Controlling a Heating Mantle Temperature Directly . . . . . . . . . . . 24
4.3
Automatic Storage of Min/Max Temperatures . . . . . . . . . . . . . . . . 25
TABLE 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
I.
Using the Controller With an Oil Bath (Application Note 1) . . . . . 27
II.
Safety Considerations and Accurate Temperature Control . . . . . . . 28
III.
Resetting the Controller to Original Factory Settings . . . . . . . . . . . 29
WARNING:
Adhere to the restrictions of SECTION 3.2. Failure to do so may create a
significant safety hazard and will void the warranty.
4