Despatch LBB2-xxA/B-2 - Manual (Page 20)

T HEORY OF O PERATION LBB Series Oven Owner’s Manual
20 Version 18
Exhaust
Heater Recirculation Fan
3. Theory of Operation
3.1. The LBB Series Oven
The Despatch LBB Series ovens (Figure 2) effectively distribute heat with a processing time
among the fastest of any lab oven in its class. LBB Series ovens are effectively used in testing,
preheating, sterilizing, drying, aging and curing as well as other production applications. The
LBB Series ovens incorporate forced circulating airflow with precise digital control to deliver fast
processing. The overall result is efficient productivity under strenuous
conditions.
The LBB Series ovens are precise and practical. The unique Despatch
design moves convected heat through stainless steel ducts on each side
of the oven (Figure 3). The air is circulated with a high volume fan.
The LBB Series ovens employ higher volume fans than any
competitive model. The chamber can be densely loaded without
interfering with the process. For your convenience the fresh air intake
is fixed. The exhaust rate is regulated by a damper on the back of the
unit.
Figure 2. LBB Forced Convection
Benchtop Oven.
Figure 3. Uniflow Airflow through the
LBB Oven.