Schambeck SFD GmbH
Refractive Index Detector RI2012
RI2012 V1.0 06-2013.EN / 28.10.2013
18
http://www.schambeck-sfd.com
11.2 C
ONNECTION TO AN
A
NALOG
D
ATA
S
YSTEM
Use a small screwdriver to connect the signal cable to one of the two pin connectors which
are delivered with your instrument. Connect the signal cable either to re integrator output
(Int. Out) or to the recorder output (Rec. Out) of the detector if you want to use an analog
integrator or recorder as well as an analog data system to collect data. Make sure that the
polarity (+/-) of the connection is correct.
■
NOTE
The signal coming from the integrator output (Int. Out) is a voltage between -1 V and 1 V. In
case of a signal gain of 1 set in the detector parameters the signal at the recorder output
(Rec. Out) is the same.
If you need a very high sensitivity it is recommended to use the recorder output (Rec. Out)
as you can use the instrument’s internal signal amplifier which might amplify the detector
signal up to 16 times.
11.3 C
ONNECTION TO A
D
IGITAL
D
ATA
S
YSTEM
(PC)
The RS232 port on the back side of the RI2012 refractive index detector can be used for
data acquisition as well as instrument control. Using the RS232 port for external instrument
control you might activate / deactivate the purge mode, send an external start / marker
signal and AutoZero signal.
To communicate with the RI2012 detector using the serial interface you will need a special
software package which utilizes a special communication protocol. Details of this protocol
you will find in
chapter 15.6
There is a software package available which allows the data acquisition with the RI2012
detector. The data can be saved in user defined file formats for later data treatment using
chromatography software packages like
PeakSimple
or
APEX
.
