FUNCTION DESCRIPTION OF ELECTRONICS
WARNING
Certain parts in these electrical devices
contain dangerous voltages during
operation.
Improper use of these devices could
therefore result in death or severe personal
injury as well as extensive damage to
property.
When carrying out repairs on the chroma-
tograph you should therefore observe all
information in this section and also that
printed on the chromatograph itself.
Disconnect the chromatograph from the
power supply before you remove or
insert electronic modules.
Only use spare parts approved of by the
manufacturer.
Exactly observe the instructions for
repair and replacement.
Page
Summary of electronics
All fuses . . . . . . . . . . . . . . . . . . . . . . . . 2
Block diagram . . . . . . . . . . . . . . . . . . . . . 3
Detector electronics
Signal flow . . . . . . . . . . . . . . . . . . . . . . 4
Electronics for FID and FPD . . . . . . . . . . . . . 5
TCD electronics . . . . . . . . . . . . . . . . . . . . 6
ECD electronics . . . . . . . . . . . . . . . . . . . . 8
Interface amplifier . . . . . . . . . . . . . . . . . . . 9
Control electronics
Interface board 3 . . . . . . . . . . . . . . . . . . 10
PCPU-2 . . . . . . . . . . . . . . . . . . . . . . . 11
Terminal board . . . . . . . . . . . . . . . . . . . 12
Heater control board . . . . . . . . . . . . . . . . 13
Power pack . . . . . . . . . . . . . . . . . . . . . 14
Circuit diagrams
SIMATIC boards
You can find information on the SIMATIC boards
e.g. in the Catalog ST 54.1 SIMATIC S5 and in this
manual, Register 3: SIMATIC modules.
Contents
9INHALT.CHP, Stand Dezember 22, 1999
1
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