Agilent Technologies 8453 - Page 145

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Theory of Operation
Spectrophotometer Lamp Supply (SLS) Board
Spectrophotometer Lamp Supply (SLS)
Board
Figure 8 SLS Board
deuteriun lam p
filam ent control
deuterium lam p
current control
tu n g s te n la m p
voltage control
diagnostic
A/D converter
s a fe ty lig h t
sw itches
SPM board
control bus
deuterium
la m p s e n s e
tu n g s te n la m p
sense
anode
fila m e n t
shut dow n
control bus
SLS