Despatch Stackable LCC/LCD - Manual (Page 41)

Stackable LCC/LCD Oven Owner’s Manual O PERATION
Version 26 41
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Figure 14. Nitrogen Flowmeter.
5.3.4. Sequence of Operation for Ovens Equipped for Inert Atmosphere
Oven
1. After starting the oven (Section 5.3.1), the Protocol Plus controller initializes.

Refer to
the Protocal Plus™ 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 Plus Controller should not be running a
profile.
c. Make certain the nitrogen flow meter is in the OFF
position, that is, fully clockwise (Figure 14).
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 Plus Controller.
a. Press Select until Profile is displayed.

Press Run at any time to
activate the Profile Mode.
b. Press ▲ or ▼ to display the desired profile.
c. Press Run to start the Profile Mode.
6. The first segment of the program is the PURGE MODE.
a. Set the nitrogen flow meter (Figure 14) to the desired setting (Table 6).
b. This program energizes the purge solenoid valve.
Table 6. Desired Oxygen Concentration.
7. The second segment is the MAINTAIN MODE:
a. The purge solenoid valve is first de-energized and then re-energized to maintain
the nitrogen level to less than the purge level.
b. Adjust the Nitrogen Maintain needle valve at rear of oven (Figure 15). Leave the
maintain valve energized as long as the nitrogen level is maintained (Table 6).
Oven Model Mode < 100 PPM <1000 PPM
LCC1-16
Purge 150 scfh 125 scfh
Maintain 75 scfh 65 scfh
LCC1-51
Purge 200 scfh 175 scfh
Maintain 160 scfh 140 scfh