Dear Eric

We had the same problem some month's ago. Your PC is "too fast" dor the
IRMS. Run PRSPEED in the PC. It will say how many loops (e.g. 95) per
microsecond are needed.
Put this value in record 7, byte 30 (the fefault value is 30).
In byte 31 you have 10. If the problem persist you can increase the value
in byte 31 to 20 or 30.


Hope this help.

Greetings, Jorge

>Do any of the Finnigan users out there have experience with frequent error
>messages when running the HDO device (or at any other time)?
>
>We suspect the problem is "simply" one of timing -- computer to instrument
>communication -- but it may be something else.  In either case, it is not
>obvious how to solve it.
>
>The errors are usually as follows:
>-----------------
>System Error: Non Fatal
>
>Modul 7 Error 502
>
>IBSRBUF: data in time out
>
>src 11632       OPC 20  SUB 18
>DST 7   SYN 3
>--------------
>
>Since it is a non-fatal error, the program will continue when you press
>escape, but of course if this happens when you're not their, lots of time
>(and possibly valuable samples) is wasted.
>
>Any suggestions?
>
>Thanks!
>
>Eric Steig

---------------------------------------------------------------
Dr. Jorge E. Spangenberg
Stable Isotopes Laboratory
Institute of Mineralogy and Petrography
BFSH 2
University of Lausanne
CH 1015 Lausanne
Switzerland

Tel +41 21 692 4365 (office)  692 4300 (secr.)  803 6242 (home)
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