Sequence Of Operation For Ovens Equipped For Lcc/Lcd Inert Atmosphere Oven; Figure 21. Nitrogen Flowmeter - Despatch LCC Series Owner's Manual

C244, 320207, REV B
6.4.4. Sequence of Operation for Ovens Equipped for LCC/LCD
Inert Atmosphere Oven
Danger!
Suffocation can occur in a nitrogen-atmosphere oven chamber if
it is not thoroughly purged with room air before a person goes
inside it.
Before entering an oven chamber, run the oven for at least five
minutes with the nitrogen (or any other inert gas) turned off,
doors open and recirculation fan running.
Do not work inside oven with the doors closed if you have not
purged the chamber with nitrogen (or any other inert gas) first.
1. After starting the oven (Section 6.4.2), the Protocol 3 controller initializes.

Refer to the Protocol 3™ Controller Owner's Manual for more
information on programming event outputs.
a. The oven should be idle, empty, with the door
closed and awaiting the next lot for
processing.
b. The Protocol 3 Controller should not be
running a profile.
c. Make certain the nitrogen flow meter is in the
OFF position, that is, fully clockwise (Figure
21).
2. Open the oven door.
3. Place the product on the shelf in the oven.
4. Close the oven door.
5. Run the desired profile with the Protocol 3
Controller.
a. Press Select until Profile is displayed.

Press Run at any time to activate the Profile Mode.
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LCC_LCD1-16/51 Oven Owner's Manual
Figure 21. Nitrogen
Flowmeter.