Figure 6 255 NCD Right Side View
Pressure Transducer
Vacuum in the reaction cell is measured using a pressure transducer. The pressure of the reaction cell can be monitored from the front panel and will typically range from 5 to 10 torr depending on the type of vacuum pump used, condition of the chemical (ozone) trap, ceramic tube position and the condition of the combustion chamber. The range of response is from 0 to 760 torr.
Vacuum Pump
There are two choices of vacuum pumps for the 355 SCD and 255 NCD. A
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