IST16 User manual
–
Version 8.0
SRA
INSTRUMENTS
210 rue des Sources
69280 Marcy l'Etoile
FRANCE
T : 04.78.44.29.47
F : 04.78.44.29.62
[email protected]
www.srainstruments.com
SAS au capital de 150.000 €
RCS
Lyon B 342 068 731
APE
4669B
SIRET
: 342 068 731 00054
Code
TVA FR 40342068731
p. 40 / 59
11.1
Flow/pressure problem with GC
11.1.1
Find the origin of the problem
First, make sure that a small piece of GC septum is not inside the
transfer line, blocking the path of the carrier gas.
The transfer line tube can be burnt with a lighter if necessary
(be careful with the transfer line)
Check your carrier gas pressure level
Is it correct?
(5 bar on Agilent GC)
Change your cylinder
or open the valve until the correct
pressure is reached
Lower the GC injector temperature to
50 °C.
Disconnect the IST16 transfer line and
turn the 3-way manual valve to let the
carrier gas flow directly into the GC.
Let the split flow at a ratio of 1:3 and the
GC oven at the maximum temperature
of the analytical method.
The GC is set apart
Does it hold pressure and flow now?
The
GC can’t hold pressure and flow
Conclusion:
There is a problem on the GC side.
Check the septum, the column connection and
the tube leaks.
Contact your GC support company if needed.
The GC holds pressure and flow.
Everything works normally.
Conclusion:
There is a leak on the IST16 side
(See next paragraph).
NO
YES
NO
YES
