See the first symptom on page 24 of this pdf
It sounds as if the needle guide is colliding with the autosampler vial well before it is expecting to?
From: Stable Isotope Geochemistry [mailto:[log in to unmask]] On Behalf Of zhangd
Sent: Thursday, April 06, 2017 12:50 PM
To: [log in to unmask]
Subject: [ISOGEOCHEM] GB PAL error message
Can anybody give me a hint to the error message of the GB PAL auto-sampler, Flush collision before Z tolerance"?