User`s guide

Installation and Setup

may need to make minor adjustments. Use this interactive process

until you obtain the desired flow rates.

An Inlet Split flow of at least 25 mL/min should be established even

if inlet split is disabled during analysis. After desorption and cool-

down, and before being unloaded, sample tubes are depressurized

using the inlet split function.

The instructions below are for both the TD and ATD. You must load

a tube into position on the carousel of the ATD that will

subsequently be loaded into the instrument to complete the flow

path. If you are using the TD, you must load the tube into the

instrument directly.

1. Press the power switch located on the rear panel to

switch on the instrument.

2. To prepare the TD for setting up the Desorb flow rate

and Inlet Split flow rate, a sample tube must be loaded

and sealed into the desorb position. If you are using the

TD, load a tube. If you are using the ATD, ensure a tube

is available in position #1 on the carousel.

NOTE: Use a clean sample tube that does not contain a sample for

the set-up procedure. The sample tube should contain the

type of packing material that will typically be used for your

applications.

3. When the ATD/TD displays a Ready status, open the

Tool s menu and select Adjust Flows.

4. Select Inlet Split.

5. The ATD will load the tube from position #1 into the

sampling position to complete a carrier gas path. Once

the tube is loaded, the heated valve is rotated, and the

solenoid valves, which control the flows are opened.

6. To set the inlet split flow, connect the flow meter to the

split vent. Adjust the inlet split needle valve to obtain

the required flow.

CAUTION

Carrier Gas and Dry Air must be already connected to the

TD and flowing for a few minutes.