Hi, I hope you all found a copy of the manual.
I first discovered this topic but being a bit frustrated not to find a full document of reference, I asked the Bruker company (they acquired CHROMEX in 2004) for a copy of the user manual, which they pleasantly sent. They allowed me to share it, so i post it here in case it helps someone, also for a better web referencing of the model.
The manual is to be used with the following models/versions :
250is IMAGING SPECTROGRAPH
250sm SCANNING MONOCHROMATOR
250is/sm SPECTROGRAPH/MONOCHROMATOR
500is IMAGING SPECTROGRAPH
500sm SCANNING MONOCHROMATOR
500is/sm SPECTROGRAPH/MONOCHROMATOR
Now, it is time to fix my own Chromex spectrograph !