1. Introduction
FlowStar2 LB 514
16
1.6 Carrying instructions
The FlowStar has 2 built-in photo multipliers and a heavy shielding. These are
mounted in the front of the instrument. This means the center of gravity (cog)
is located more to the front of the instrument.
This must be taken into account when carrying the FlowStar². To allow a com-
fortable transport of the FlowStar always grab the instrument at the first third of
the front to get it balanced properly.
The weight of the FlowStar² is approx.16kg so use caution when carrying it.
Figure 1: Grabbing Positions
1.7 Overview
The Radioflow Detector
FlowStar
²
may be connected to any chromatog-
raphy data system. A special interface ensures that the signals transferred
to the data station (HPLC controller/integrator) will be processed just like
those from a UV monitor.
The Radioflow Detector is employed for the measurement of all liquid
sources commonly used in radiochromatography. HPLC measurements
detect
,
and
radiation using various measuring cells which are installed
downstream of separation column and mass detector (UV monitor).
The microprocessor performs the following control and process functions:
setting of energy channels, data reduction of radioactivity signals, elimina-
tion of noise and luminescence events through coincidence circuit, control
of scintillator pump, ratemeter function, DPM calculation, background sub-
traction.
The USB interface supports external control of the monitor and parameter
input via computer.
Figure 1 show a typical configuration and illustrates the
FlowStar
²
func-
tions.
The measured radioactivity is output as analog signal (0 - 1 Volt) at the
ratemeter output after data reduction by a 16 bit digital/analog converter.
This output has to be connected to the available HPLC controller/integrator
system.
grab here
grab here
Front
Front
Rear
Rear
