Shellab SMO5CR-2 - Manual (Page 17)

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OPERATION (CONTINUED)
HEPA F ILTER B URN -I N
The HEPA filter must be burned in prior to its first use. The HEPA filter will fill with gas and produce
significant smoke during the burn-in. The
oven’s intake and exhaust vents must be open throughout
the procedure. The burn-in process requires approximately thirteen hours. Remove shelving from
the oven prior to the burn-in.
Burn-in:
1. 125°C for 1 hour
2. 150°C for 4 hours
3. 175°C for 1 hour
4. 200°C for 1 hour
5. 225°C for 1 hour
6. 250°C for 1 hour
If the operating temperature will exceed 250°C, continue the cycle of one hour at 25°C increments
until the operating temperature is reached (maximum 300°C). The filter must be burned-in to the
highest operating temperature.
If manually running the burn-in process, be sure to allow time for the oven to ramp up (heat) to
each temperature level and ramp down (cool) afterward. Under most ambient conditions a-half hour
(30 minutes) should suffice for ramping up.
Procedure continued on next page