OCI BDL800IR, Instruction Manual

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Chapter 4 Electronics 15
4 Electronics
4.1 LPS300-D and LPS075-D
Model LPS300-D is designed to control LEED-AES spectrometers in both LEED and AES
regimes. It can be controlled manually using the front panel controls or remotely via USB
using a software program.
Model LPS075-D is designed to control LEED-AES spectrometers in the LEED mode
only. It can be controlled manually using the front panel controls or remotely via USB using
a software program.
The main board consists of analogue controls, power supplies, and high voltage modules.
The high voltage section is optically isolated from the digital electronics. Beam current is
obtained indirectly by measuring current returning through ground.
All currents and voltages are measured at the output, which allows to continually monitor
the LEED-AES operating conditions.
4.1.1 Front Panel
Selectors / Buttons Description
Instrument Mode Select the main operating regime—LEED or AES (LPS300-
D).
Controller Mode Select the controller mode—Operation, Programming, and
Test.
Program Selection Press the selector to display a menu. Rotate the selector to