Knauer BlueShadow Detector 40D, Инструкция по эксплуатации

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33 Operation
BlueShadow Detector 40D Instructions V7647
Fraction
collection
A fraction collector can be con-
trolled through the pin header
on the back of the detector .
Press the confirmation key to
enter the submenu:
ƒ
The
Fraction level is used
to specify the signal height
that needs to be exceeded
to switch on the fraction
collection .
ƒ
With the Fraction delay the
propagation delay due to
the delay volume of the
capillaries between detec-
tor and fraction collector is
considered .
ƒ
When the set threshold in the
Fraction level is exceeded,
the event output selected
in the Fraction port line is
switched on and remains
active until the signal drops
below the threshold value .
The threshold always relates
to the signal on the measure-
ment channel . The following
event outputs can be selec-
ted via the Fraction port para-
meter (please also see pin
header connectors section
for details on TTL-level and
permissible loads, etc .):
— Event 1 (relay contact via
pin header „EV1“)
— Event 2 (TTL output via
pin header „EV2“)
— Event 3 (TTL output via
pin header „EV3“)
—
24V (+24V via pin header
„+24V valve“)
Analog output
setup
Here the offset (constant baseli-
ne shift) and the
scale (in au/V)
of the integrator output can be
set .