Re: WFD Stop-Master "saga"

Christopher Orth (corth@budoe.bu.edu)
Wed, 9 Jun 1999 09:53:09 -0400

Hi Nicola,

I think this problem has been fixed on some Stop Masters by
tightening or replacing the LEMO connector on the Stop Master front panel.
It has also been fixed of course by replacing the cable (some of the long
cables were Stefano Stalio and my very first attempts at making rg174
cables and they didn't work too well in practice)

Good luck. Let me know when the know Q's a fixed for sure and
I'll (now?) and I'll check the data itself.

Thanks,
Chris

On Wed, 9 Jun 1999 Nicola.Zaccheo@lngs.infn.it wrote:

>
> Ciao a tutti,
>
> unfortunately, during run 17740, the WFD Stop-Master on SM2 started
> again giving no Q responses after ~ one hour (after a black out!).
> During the mini-acq that we performed before to put back in
> acquisition this module, it worked fine (we analysed the correspondent
> file).
> This morning, just handling the "impeached" cable, it restarted to
> work correctly, so, starting from run 17744, there are no longer
> "no Q's" from it.
> This module are driving us mad!
> The next time I'll follow a Chris Orth's suggestion:
> "those STPM modules fix themselves from the mere act
> of looking at them!"
>
> A presto,
>
>
> Nicola
>