SED Detector How To

1. Start SmartSEM software
2. Turn on SED Control Unit
3. Push Remote button to enable control by SEM
4. In SmartSEM select signal SE2 on main or Dual Channel window
5. Adjust contrast and brightness
1. "contrast" is Channeltron voltage displayed on controller, value depends on beam current. For large currents may be ~ 1500 V, for small currents, may max out at 2500 V.
2. "brightness" is an offset voltage on the SEM signal, for the SED larger brightness makes the image darker. This is the opposite of the In Lens detector.