Shellab SVAC4-2 User Manual
Page 13
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7.5
Setting the Set Over Limit Temperature Control:
To set the Over Temperature Limit Control, perform the following:
1. The Over Temperature Limit Control should be initially set to its maximum position to allow the Main
Temperature Controller to stabilize.
2. Set Main Temperature Control to 1
˚C above desired set point and allow to stabilize.
3. Turn the Over Temperature Limit Control counter-clockwise until the Over Temperature Light just
activated. Then, slowly turn the knob clockwise until the light goes out.
4. Return the Main Temperature Control back to desired set point.
5. This should set the Over Temperature Limit Control 1
˚C above Main Temperature Control. If the Over
Temperature feature is being used, it is should be tested annually.
7.6
Digital Vacuum Gauge Setup: See Reference Section of the manual.
7.7
Ramp and Soak Settings: The Watlow EZ-Zone Controller is capable of 40-step ramp and soak
profiles (or 40 different files-with 10 steps per file). The program will ramp up to 150
˚ from ambient
condition and soak for 4 hours. For your programs, make sure enough time is entered in the ramp
time, so the oven can reach set point before entering the soak step. See Reference Section of the
manual for more information.
Video is also av
ailable for instructions “How to Program Ramp & Soak Profiles.”