Sheldon SHEL LAB SVAC1, Installation And Operation Manual, Page: 55 / 78

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MAINTENANCE
Continued next page
Calibration continued
3
Unlock the controller.
•
See the Unlocking procedure on page 57.
Note: The temperature controller must be unlocked in order to
access the Operations menu and enter a calibration offset.
4
Navigate to the Operations menu after unlocking the
controller.
a. Press and hold both the Up and Down arrow buttons
simultaneously for approximately 5 seconds.
b. Release the buttons when “A1” appears on the top display
line and “oPEr” appears in the mid display line.
Note: The Operations menu will not appear if the controller
is not unlocked.
Operations Menu
5
Advance through the Operations menu options to the
Temperature Calibration offset parameter.
a. Push the green Advance button repeatedly until “i.CA”
appears in the green mid display line and a number
value in the red top line.
6
Adjust the number value in the top display line to match the
offset value from step 2, using the arrow buttons.
7
Save the calibration offset and return to the homepage.
a. Push the Reset button 3 times so the display shows the
homepage.
•
The oven will now begin heating or passively cooling to reach
the setpoint with the corrected display value.
x2
x3