Electronics; Lps300-D And Lps075-D; Front Panel - OCI BDL800IR Instruction Manual

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
Instrument Mode
Controller Mode
Program Selection
Description
Select the main operating regime—LEED or AES (LPS300-
D).
Select the controller mode—Operation, Programming, and
Test.
Press the selector to display a menu. Rotate the selector to
Chapter 4 Electronics 15