BLUE M
Blue M - - DC 146 Series Industrial Ovens, Models DC, DCW, DCI, DCC
Page 48
7.2 Model DCC Gas Control System
An inert gas sytem is used to maintain an inert gas atmosphere in the oven during the entire process cycle.
The Model DCC does not incorporate a separate Purge Cycle and Run Cycle as in the Model DCI.
Therefore, the pressure relief valve, pressure gage, and purge timer are not employed. Inert gas is injected
into the chamber through a small port located beneath the blower wheel in the conditioning plenum.
The following inert gases are approved for this oven.
• Argon
• Carbon Dioxide
• Helium
• Nitrogen
Warning! This oven is designed for use with only non-explosive, non-flammable, inert gases.
Operator injury and equipment damage may result if all safety precautions are not followed.
A vent port is located on the top of the oven to vent process air, insuring that excess
chamber pressure levels do not develop to violate the oven door seal integrity.
The pressure is not monitored or controlled and is a result of gas injection flow rate
versus gas vent dynamics. This may be affected by excess loading of the HEPA /
ULPA filter. Flow rate is adjusted using the needle valve on the flowmeter.
GAS FLOWMETER
Needle Valve
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