Agilent Technologies 1260 Infinity II User manual

Agilent 1260 Infinity II
DataStream
User Manual

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Agilent 1260 Infinity II DataStream User Manual

Agilent 1260 Infinity II DataStream User Manual 3
In This Guide...
In This Guide...
This manual covers the
•G7825A Agilent 1260 Infinity II DataStream
1 Introduction to the DataStream
This chapter gives anintroduction to the DataStream
2 Site Requirements and Specifications
This chapter provides information on environmental requirements, physical
and performance specifications.
3 Maintenance and Troubleshooting
This chapter gives an overview about the troubleshooting and provides general
information on maintenance.
4 Appendix
This chapter provides safetey and other general information

4
Contents
Agilent 1260 Infinity II DataStream User Manual

Agilent 1260 Infinity II DataStream User Manual
Agilent Technologies
1
Introduction to the DataStream
Introduction to the DataStream 6
Connections 7
Using the Module 9
5

6
Introduction to the DataStream
The Agilent 1260 Infinity II DataStream is a high performance data acquisition unit. As
part of a system, interfaced to Agilent GPC/SEC Software or Cirrus software it is designed
to meet the exacting acquisition, display and analysis requirements of chromatography
applications.
Figure 1. Agilent 1260 DataStream (Front & Rear)
No. Description
1
2
Channel start button
3
Status LEDs
Channel analogue input
4CTR connector
5
Description
Aux I/O connector
RS232 connector
PL-CAN connector (not used)
Power Switch
Voltage selector
No.
6
7
8
9
10 Power inlet
2
13
4
6
7
8
9
10
5
Agilent 1260 Infinity II DataStream User Manual
1 Introduction to the DataStream
Site Requirements

Analogue Inputs
The analogue input cables are intended for connection between the
DataStream and any detector or other voltage source with an output
range of ±1V or smaller. Connect the red wire to the positive output
terminal and the black wire to the negative output terminal of the source.
Do not connect the screen of the cable to the source.
The 3-pin connector on the analogue cable should be inserted into the
desired channel input socket on the DataStream.
Unused channels can be left unconnected.
Connections
Agilent 1260 Infinity II DataStream User Manual
RS232 Serial Cable
Connect the serial cable from the 9-pin RS232 socket on the DataStream
to a free serial port on the PC on which the Cirrus software has been
installed.
AUX I/O
This connector provides external channel start facilities and contact-
closure relay outputs:
7
Introduction to the DataStream 1
Connections

To trigger a channel using an external contact closure, simply connect one
side of the switch to one of the GND pins and the other side to the desired
START CHANNEL pin. Data collection will start as soon as the switch is
closed. Alternatively a TTL-compatible logic LOW signal can be used to
trigger a channel
5IFSFMBZTBSFOPSNBMMZPQFODPOUBDUDMPTVSFVOJUTSBUFEBU4VN"
$POUBDUSFTJTUBODFJTƄBOEUIFTFUUMJOHUJNFJTNT 5IF7PMUT
PVUQVUJTDVSSFOUMJNJUFEUPN"5IJTDPVMECFVTFEUPTVQQMZFYUFSOBM
DJSDVJUSZPGMPXQPXFSDPOTVNQUJPO
5Iis connector is reserved for use by Agilent service personnel only
CTR
5Iis connector are reserved for future use
PL-CAN
Agilent 1260 Infinity II DataStream User Manual8
1 Introduction to the DataStream
Connections

The differential pressure transducer monitors the pressure drop across the bridge,
ΔP, and the inlet pressure transducer measures the pressure drop through the
bridge, Pi. When the sample is introduced across capillary 4 (C4) of the bridge, an
imbalance is caused due to the hold-up columns. This change in pressure, ΔPis
proportional to the specific viscosity, ηsp, according to the following equation.
Where ΔPis the differential pressure across the bridge and
Pi
,is the pressure of the
flow through the capillary bridge. The instrument makes a true differential
measurement directly, making it very sensitive to dilute solution viscosity
measurements.
Using the Module
Agilent 1260 Infinity II DataStream User Manual
Power Switch
The power switch is located on the power inlet situated on the rear panel
of the instrument.
Press the ‘I’ symbol to switch ON or the ‘O’ symbol to switch OFF.
Channel Start Buttons
A data acquisition run on any channel may be started manually by
pressing the associated channel start button after the DataStream has
been initialised by the Cirrus software.
Power-Up Sequence
When the instrument is turned on the status LED on the front panel
will briefly become green. It will then go amber whilst the instrument
performs a range of internal self-test and calibration tasks. These can
take up to 1 minute after which the status LED will become green
again, indicating that the instrument is ready to collect data. If an
error occurs during the internal tests the LED will remain amber and
the 4 channel run LEDs will flash. If this happens, cycle the power to
retry the internal tests.
9
Introduction to the DataStream 1
Using the Module

10Agilent 1260 Infinity II DataStream User Manual
1 Introduction to the DataStream