Shellab SVAC9-2 - Manual (Page 19)

19 | P a g e
OPERATION (CONTINUED)
F
IRST
U
SE
B
URN
I
N
(R
ECOMMENDED
)
This procedure helps to eliminate smoking from the heating elements’ protective coatings above
150
˚C. Running the oven at room pressure or under vacuum will not affect the burn in process.
1. If you have not already done so, turn the Over Temperature Control knob all the way
clockwise to its maximum setting.
2. Set the oven to run at 200 °C by using the Watlow temperature controller’s Up or
Down arrows to adjust the green set point shown in the middle display. Once set at
200, the oven will wait a few seconds and then begin to heat. The current temperature
is shown it the top red display and will count upward.
3. Run the oven for a minimum of one (1) hour at 200
°C, or until smoke from the heating
elements dissipates.
4. Depower the oven, or return the set point to 0 °C.
V ERIFY V ACUUM F UNCTIONALITY AND I NTEGRITY
When setting up the oven after it is installed in a new workplace location, bring the oven under
vacuum prior to performing the first temperature calibration. This is to verify the functionality of your
vacuum pump and integrity of the chamber. The level of vacuum should be equal to what you will
be using during
the oven’s application or process.
For a Cabinet Mounted Vacuum Pump
1. Close the vent valve by turning it fully clockwise (right.)
2. Turn the vacuum power switch to ON (I)
3. Open the vacuum valve by turning it fully counterclockwise (left).
4. Watch the vacuum gauge display. When the desired vacuum is achieved, close the
vacuum valve completely clockwise.
5. Turn the vacuum power witch OFF.
6. Release the vacuum using the Vent Valve control and restore room pressure to the oven’s
chamber if you will be performing a calibration during the initial setup.
Procedure continued on next page