No CCD Temperature Control

Check the CCD temperature

Either:

• Check the temperature display on the right side of the ESI Dashboard GUI.
  If it shows as blue the CCD is too cold. (Red means it is too warm; but that is a different problem.) Or,

• Check the temperature and heater voltage using the "Tricorder" panel from the GUI. Or,

• Check via keyword.
  

  On kanaha, type "show -s esi tempdet pwrblok".

  Check to make sure tempdet is near the set point (-120) and pwrblok is nonzero.

  If tempdet is low and pwrblok is nonzero, recheck the same keywords after a minute or two. TEMPDET should be rising to the set point. If it is the same, and in particular if the two values are exactly the same, the crate still may be locked up. See "Reboot the CCD crate" below.

Reboot the CCD crate

If pwrblok is zero, and the CCD is too cold, then reboot the CCD crate in the computer room.

ESI Master
27 December 1999