Hi Paul,

I've had the same issues. I did some fine adjustments to the Z 
tolerance and got it to stop doing that. I'll call you this afternoon 
to talk you through.

Janet

At 12:09 PM 4/2/2009, you wrote:
>Listmembers,
>
>I'm getting an intermittent error on our CombiPal autosampler. Every 
>few runs, it will approach an object (vial, wash, waste etc) and on 
>the z axis stop short by up to 1 cm above the object. It doesn't hit 
>anything, but displays: "collision before Z tolerance". It thinks it 
>is hitting something, but nothing is there.... Has anyone else had 
>such an issue?
>
>I'm also struggling to find where I can adjust the needle depth in 
>the sample vials.
>
>Paul Eby
>University of Victoria