European Southern Observatory New Technology Telescope

General :
Observations :
Operations :

Calibration Light

External calibrations:

    start tcs, open M1 cover and Nasmyth shutter;
    send telescope telescope to calibration screen with DOME FLAT preset key.
    switch off building lights.

consult lamp_flatfields.ps for intensities

• General Purpose FF lamps panel:
  
  type nttclgGui& in a xterm window
  or Calibration Lamp control under TCS Apps widget
  of MENU tcs@wt5tcs.

• Top ring Flat Field Lamps :

To control top ring lamps, call
M3 ENGINEERING INTERFACE  panel with:
tcs@wt5tcs:~ [..]-> nttguim3 &
and use  FF Lamps  widget
Do not forget to switch off when you are finished.
 
• Dome Flat field Lamp :

Plug in dimmer labelled:
DOME FLAT FIELD LAMP
Intensity control
on the control room wall.
You can switch on one or two bulbs of the projection light in the dome and
control the intensity with the dimmer. Remember the colour temperature
effect : the fainter the current, the redder is the light.
Do not forget to dim down and unplug when you are finished.
 
• Day Light thru Flap:

Go to the Flap control closet in the building control room:
switch it to manual and press open red button #5 :
wait 3 to 15 seconds according to the light intensity you wish
and press stop black button #5.
Do not forget to press close red button #5 and stwitch back to
automatic when you are finished.

    check that Nasmyth shutter is closed.
    switch off building lights.
 

Send comments to: NTT Webmasters <nttweb@www.ls.eso.org> Last Update: Feb 20, 2000 (GM/EC)