Operating instructions

CONNECTORS, INDICATORS AND CONTROLS
17
point for some time. The tip is probably not in contact
with the sample surface.
green The scanner is not in a limit position, and the feed-
back loop can measure the sample surface.
blinking green The feedback loop has been turned off in the software.
blinking red There is no signal with which to do feedback: The
light intensity on the photodetector of the laser beam
deflection system is too low. Refer to section Probe
Status light blinks red (p.66)) for more information.
The Scan Head lights
Indicate the scan head type that is connected to the instrument. The Scan
head lights blink when no scan head can be detected, or when the Control-
ler has not been initialised yet.
The Module lights
Indicate the modules that are built in into the Controller. The module
lights blink when the Controller has not been initialised yet. During initial-
isation, the Module lights are turned on one after the other.