9. Instrument Shutdown
Procedure 1: (normal shut-down)
  • 1. Set the beam on brass or somewhere off of standards, samples or epoxy.
  • 2. Retract the transmitted light lens if it was being used by pressing the LENS button located inside the sliding cover on the front of the main console, below the sample exchange lever. The LENS button is not illuminated with the transmitted light is in the retracted position.
  • 3. Select the Secondary Electron Image (SEI) using the VIEW button on the main control panel or the Signal button in the EOS Monitor window. The image type being displayed is identified along the bottom of the left CRT screen.
  • 4. Set the scan mode to the full picture setting either by pressing the PIC button on the main control panel, or by using the Mode button in the EOS Monitor window and choosing FULL under Reduce Mode.
  • 5. Turn up the magnification to its highest level (300,000x) using the MAGNIFICATION knob on the main control panel, or use the Mag button in the EOS Monitor window (only functional if the PRBSCN is ON at the console). The magnification setting is indicated at the bottom of the left CRT screen.
  • 6. Select the slowest speed setting by pressing the SLOW button on the main control panel until the slowest scan speed is attained, or use the Speed button in the EOS Monitor window and choose Scan speed S3. Watch the left CRT screen to check the speed. You may have to turn up the brightness to see the scan line on the monitor.
  • 7. Blank the beam by pressing the PCD button on the main control panel, or click on the picture of the cup in the EOS Monitor window.
  • 8. Turn the optical system off by pressing the OMTV button on the main control panel so that it is no longer lit.
  • 9. Turn the probe scan off by pressing the PRBSCN button so that it is no longer lit, or use the control button in the EOS Monitor window.
  • 10. Turn off the SONY colour monitor (green button below screen).
  • 11. Turn down the brightness and contrast of the left and right CRT monitors as far as they will go using the thumb knobs located immediately underneath the monitors.
  • 12. Close the open windows on the HP screen until only the main EPMA menu, the EPMA and CONSOL icons and the Present Values window remain.
  • 13. Turn off the LaserJet and Seiko colour printers. (Leave the DEC printer (dot matrix) on)
  • 14. Turn off the HP colour monitor. The power switch is located on the lower right front of the monitor.
  • 15. MAKE SURE THE GREEN VACUUM CONTROL BUTTON IS LIT!
    1. The green button is located on the right side of the vacuum chamber next to the specimen exchange chamber isolation valve lever (refer to Figure 3.1). The green button light indicates that the sample exchange airlock is at atmosphere. If this button is not lit, press the button to vent the airlock.
  • 16. Fill out the electronic log (Utilities Electronic Log). Complete the log book entry for your session, noting problems and solutions and any other pertinent information.
  • 17. Remove your printed analyses, turn out the lights in the room and lock the door behind you.
  • Procedure 2: (run overnight)
  • 1. Retract the transmitted light lens if it was used and is still in the chamber. This is done by pressing the LENS button located inside the sliding cover on the front of the main console, below the sample exchanger lever. The LENS button is not illuminated when the lens is in the retracted position.
  • FAILURE TO DO THIS CAN SEVERELY DAMAGE THE INSTRUMENT.
  • 2. Turn the optical system off by pressing the OMTV button on the main control panel so that it is not longer lit. (NB If you are using the optical autofocus, don't turn off the optical system.)
  • 3. Turn off the SONY colour monitor.
  • 4. Turn off the HP colour monitor. The power switch is located on the lower right front of the monitor.
  • 6. Turn off the LaserJet and Seiko colour printers. (Leave the DEC printer (dot matrix) on)
  • 7. Turn down the brightness and contrast of the left and right CRT monitors as far as they will go using the thumb knobs located immediately underneath the monitors.
  • 8. Make sure the green vacuum control light it lit before leaving. It is located on the right side of the vacuum chamber next to the specimen exchange chamber isolation valve lever. If this is not lit, press the green button once so that it lights up.
  • 9. Fill out the electronic log (Utilities Electronic Log). Make an entry in the log book, noting problems and solutions and any other pertinent information.
  • 10. Clean the instrument area of any material that was not present at the beginning of your session. PLEASE KEEP THE LAB CLEAN. Turn out the lights, close the blinds and close/lock the door behind you.