... but after the autosampler injected a sample and the GC switches from "ready to inject" to "initial temp" isodat is not starting to measure
Vladimir.
На 7 мая 2018 г., в 15:12, Simon Leitner <
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Dear Heavy Users!
We have a Thermo Trace GC Ultra connected to a Delta V Advantage via GC Isolink and Conflo IV. The GC is equipped with two different autosamplers (VSP purge&trap, combi pal). A data transfer switch is used to change the communication from/to the GC with either one of the two samplers. The data aquisition is controlled/started via isodat 3.0. The system has been running since some weeks ago when I was changing from on-column injection by the VSP to PTV splittless injection by the combi pal (then i was also working on some errors with the PTV...)
We now have the problem that isodat is not starting a "by device" run within a sequence. Isodat is as usually "waiting for AS trigger", but after the autosampler injected a sample and the GC switches from "ready to inject" to "initial temp" isodat is not starting to measure, executing the IRMS method respectively. While the previous steps of starting a run, waiting for "GC ready" and starting the injection by the autosampler is executed.
Since I was klicking through the isodat configurator unaware that I maybe changed something I loaded an isodat backup, but our problem stayed the same.
I should maybe add how the individual devices are connected to each other. The Isodat PC is connected via fiberline to the IRMS and the GC Isolink and by a COM cable to the GC. The GC is connected to the autosamplers via the "autosampler signals" plug-in and to the GC isolink and a second detector (Thermo ISQ) via the "generic handshake" plug-in (Y-cable). The connections are as they used to be when the measurement setup was running properly.
Does anyone has a clue why the GC start signal is not received by isodat or how I could check if the GC signal is sent to isodat. Or is there any advise what to do in general?
Thanks a lot!
simon