CHROMATOGRAPHS edition II :
CHROMATOGRAM
ON THE RECORDER
The detector amplifiers
edition II
directly deliver the
digital detector signal for the internal evaluation.
The integration time is 40 ms as previously.
The detector signal is converted again by the chromato-
graph into an analog signal for the recorder output. It
takes into consideration the attenuation, polarity, damp-
ing and baseline offset. These parameters thus only
have an effect on the recorder. The detector signal for
the integration is not influenced by them.
The chromatographs
edition II have four analog outputs
at terminals. The output is a load-independent current
of 4 to 20 mA or 0 to 20 mA. During the configuration
phase it is possible to define that the recorder signal is
to be output at these analog outputs.
Extending the analog outputs
The
PGC 302
edition II can be extended up to a maximum
of 36 analog outputs, the
RGC 202
to a maximum of 18,
the
PGC 102
to a maximum of 12. For this purpose
there are
SIMATIC
modules with eight analog outputs
each. These are primarily used to output component
results as a trend recording (see there).
NOTE:
For compatibility reasons, the analog outputs 35 and 36 cannot
be configured for output of the chromatogram on the recorder.
Converting the analog outputs
The standard analog outputs can be set to 4 to 20 mA or
0 to 20 mA using plug-in jumpers. This is described in
the Register Installation.
NOTE:
The chromatographs of the older generation
are operated exactly as previously. Only the
display Signals is adapted to the new appear-
ance. This is shown on the right.
A
D
D
A
Detektor
Auswertung
Schreiber-
ausgabe
Schreiber
Chromatogram on the recorder
8
5SCHREIB.CHP, Stand Dezember 22, 1999
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