Performing A Leak Check (Capillary Column) - Thermo Scientific TRACE GC Ultra Maintenance And Troubleshooting Manual

Performing a Leak Check (Capillary Column)

OPERATING SEQUENCE
Performing a Leak Check (Capillary Column)
This procedure allows to check for leaks on the injector side only and it is suitable
only for capillary column.
Before starting this sequence, install the column into the injector port only,
leaving free the column end.
This Leak Check procedure can be easily performed by means of the provided
column-flow meter connector shown in Figure 10-1.
Materials needed:
•
•
The column-flow meter connector features two dedicated channels:
1. Confirm that the carrier gas is on.
2. Carefully push the capillary column end into the blind channel of the
Maintenance and Troubleshooting Manual
Blind channel
for leak check
Open channel
for Col. Evaluation
Figure 10-1. Column-flow Meter Connector
Leak detector (Thermo Scientific GLD Pro, or equivalent)
Column-flow meter connector
— A blind channel used to seal the column end when a leak check is 
performed.
— An open channel used to measure the flow at the end of the column when
a column evaluation is performed (not used in this procedure).
column-flow meter connector as shown in Figure 10-2.
Ensuring Tightness
Knurled nuts
Flowmeter connection
fitting
Chapter 10
181