Schambeck SFD GmbH
Refractive Index Detector RI2012
RI2012 V1.0 06-2013.EN / 28.10.2013
15
http://www.schambeck-sfd.com
10.2 I
NPUT
-C
ONNECTORS
The RI2012 refractive index detector has three digital (TTL) inputs. These can be used to
control the system externally.
10.2.1 T
HE
E
XTERNAL
S
TART
S
IGNAL
Use the digital input connector (Dig.) to connect an external start signal (e. g. generated by
an autosampler or a manual injector) to the instrument.
10.2.2 T
HE
E
XTERNAL
A
UTO
Z
ERO
S
IGNAL
Use this input connector (AutoZero) to connect an external AutoZero signal to the
instrument.
10.2.3 T
HE
E
XTERNAL
P
URGE
S
IGNAL
Using this
connector (Purge) you can use an external signal to activate the detector’s purge
mode.
■
NOTE
All TTL signals handled by the RI2012 detector use a TTL level which is based on
instrument’s ground potential.
10.3 RS232
P
ORT
The RS232 port can be used to acquire the detector’s signal using a personal computer as
well as to control the instrument using the computer. To communicate with the detector
using a computer you need to use a certain protocol which is explained in
chapter 15.6
of
this manual.
10.4 USB
–
2.0
P
ORT
T
HE
USB-2.0
PORT CAN BE USED TO ACQUIRE THE DETECTOR
’
S SIGNAL USING A PERSONAL
COMPUTER AS WELL AS TO CONTROL THE INSTRUMENT USING THE COMPUTER
.
T
O
COMMUNICATE WITH THE DETECTOR USING A COMPUTER YOU NEED TO USE A CERTAIN
PROTOCOL WHICH IS EXPLAINED IN
CHAPTER
OF THIS MANUAL
.
