User`s guide

Operation
97
Temperature Tab
There are five temperature settings for the TD. The Tube oven
temperature, the heated Valve, the Transfer line temperature and
the cold trap secondary desorption temperatures (Low, High). You
will also set the heating Rate for secondary trap desorption.
Entering a value of zero for any temperature parameter, disables the
related heater. For example, if you enter zero for the transfer line
temperature, the transfer line heater will be turned off and the
transfer line will be at ambient temperature.
Figure 18 Temperature Tab
Tube Oven Temperature—The tube oven consists of a
thermostatted block that slides into contact with the sample tube
during primary desorption. The oven temperature can be set between
50°C and 400°C.
Transfer Line Temperature—The heated transfer line connects the
ATD/TD to the gas chromatograph and consists of a heated stainless
steel tube containing the deactivated fused silica sample transfer
line. The transfer line may be heated to between 50°C and 300°C.
Cold Trap Temperatures—You will enter three values for the cold
trap: the low temperature, the heating rate and the high temperature.