Re: Pulser error interrupt

Graham Barlow (gkb1@tower.york.ac.uk)
Wed, 27 Oct 1993 09:43:04 +0000

>
>
>Dear Bruker-Users:
>
>When acquiring 1D spectra with very short recycle times on our AMX500
(using the "zg"
>pulseprogramme) sometimes the acquisition stops, and the following error
message appears:
>
>pulser error interrupt
>acqu abort (occured at pulser pc:024 (20.0)
>
>I assume that this is related to the process controller in the Aspect
acquisition
>processor. Does anyone out in Brukerland have any ideas how to prevent
this. It typivally
>ocuurs when running some spin >1/2 nucleus with D1 = 1ms and recycle time ~
10-50 ms.
>
>Deane D. McIntyre
>NMR mananger
>University of Calgary
>dmcintyr@acs.ucalgary.ca
>
>

This is the sort of message we get in DISMSL when a delay is too small, it
may not be a delay you actually set, but a delay derived in the pulse
program. Why not run through the pulse program by eye with the delays used
in a situation that fail and see whether the delays are less than the
minimum. On the MSL that we have, the minimum delay is 0.6ms. Maybe you
will see DEL=D1 / 2 or some other such.

Regards,

Graham
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| Dr. Graham Barlow | tower or VAX mail: gkb1 |
| NMR Service Manager | JANET mail: gkb1@UK.AC.YORK |
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