DataApex Agilent 7890 User Manual

Clarity Controls

Agilent 7890

GC ENG

Code/Rev.: M144/70B

Date: 1/10/2017

Phone: [phone] DataApex Ltd.

Fax: [phone] Petrzilkova 2583/13

[e-mail] 158 00 Prague 5

www.dataapex.com The Czech Republic

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DataApex reserves the right to make changes to manuals without prior notice. Updated manuals can be
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Author: MP

Agilent 7890 Table of Contents

Contents

1 Agilent 7890 Control module 1

1.1 General Conditions of Agilent Autosampler Control 1

2 Requirements 3
3 Installation Procedure 4

3.1 Agilent 7890 Setup - Communication 4

3.2 Clarity Configuration 5

4 Using the control module 8

4.1 Hardware Configuration 8

4.2 Method Setup - Autosampler 9

4.3 Method Setup - GC 11

4.3.1 Oven/Zones 11

4.3.2 Front (Back) Inlet 13

4.3.3 Column # 15

4.3.4 Front (Back) Detector 17

4.3.5 Time Table 19

4.3.6 PCM 20

4.3.7 Gradients 22

4.4 Method Setup - Acquisition 23

4.5 Method Setup - Valves 25

4.6 Using Dual Injector 26

4.7 Device Monitor 27

4.8 Agilent 7890 Setup 28

4.8.1 Connection tab 28

4.8.2 GC tab 29

4.8.3 Signals tab 30

4.8.4 Sampler tab 31

4.8.5 Valves tab 32

4.8.6 Aux tab 32

4.8.7 PCM tab 33

5 Report Setup 34
6 Troubleshooting 35

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Table of Contents Clarity Controls

To facilitate the orientation in the Agilent 7890 manual and Clarity chromatography station,
different fonts are used throughout the manual. Meanings of these fonts are:

Instrument (blue text) marks the name of the window to which the text refers.

Open File(italics) describes the commands and names of fields in Clarity, parameters that can
be entered into them or a window or dialog name (when you already are in the topic describing
the window).

WORK1 (capitals) indicates the name of the file and/or directory.
ACTIVE (capital italics) marks the state of the station or its part.

The bold text is sometimes also used for important parts of the text and the name of the Clarity
station. Moreover, some sections are written in format other than normal text. These sections are
formatted as follows:

Note: Notifies the reader of relevant information.

Caution: Warns the user of possibly dangerous or very important

information.

▌ Marks the problem statement or trouble question.

Description: Presents more detailed information on the problem, describes its causes,

etc.

Solution: Marks the response to the question, presents a procedure how to remove it.

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Agilent 7890 1 Agilent 7890 Control module

1 Agilent 7890 Control module

This manual describes the setting of the Agilent 7890 chromatograph
control module. Supported versions of the chromatograph are 7890A and
7890B. The control module enables direct control of the instrument over
Local Area Network (LAN).

Fig 1: Agilent 7890A Gas Chromatograph (with 7683 autosampler)

1.1 General Conditions of Agilent Autosampler Control

Clarity allows controlling all Agilent GC autosamplers and for their control
is always required to purchase AS Control Module (p/n A26) license. Not
all combinations of autosamplers and 7890 GCs are possible. To find out
if desired combination of autosampler and 7890 GC is available refer to
following table.

Tab 1: Possible combinations of Agilent autosamplers and Agilent gas chromatographs:

Autosamplers

7673 (A, B, II) 7683 7693 6850

Chromatograph 7890

û ü ü û

The autosampler 7683 (or 7693) is connected to GC via Agilent
proprietary connection and its hardware configuration is described in the
section Sampler tab on pg 31 because the autosampler control is
implemented through DataApex 7980 Control Module.

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1 Agilent 7890 Control module Clarity Controls

There is a Dual Injection mode support implemented for 7890 GCs. In
case of 7890 CGs Dual Injection hardware configuration is described in
the section Sampler tab on pg 31 because the autosampler control is
implemented through DataApex 7890 Control Module.

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Agilent 7890 2 Requirements

2 Requirements

l Clarity Installation CD ROM with GC Control module (p/n A23).

Caution: Minimal firmware version required for 7890A and 7890B is A.01.10.0.

l LAN card in the PC.
l Cross LAN cable (p/n SK08).

Note: Cables are not part of Clarity Control Module. It is strongly

recommended to order required cables together with the Control Module.

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Agilent 7890 3 Installation Procedure

3 Installation Procedure

3.1 Agilent 7890 Setup - Communication

The GC must be fully configured prior to connecting to Clarity. No special
settings have to be made on the Agilent 7890 chromatograph, only the
correct IP address of the instrument (set on the OPTIONS key screen by
using COMMUNICATION - IP item). A default IP address of most Agilent
GC's is 10.1.1.101 which is suitable only in case the GC is connected
directly to computer using separate network.

Caution: Do not use the Agilent 7890 DHCP server feature.

When using the LAN communication it is recommended to attach the GC
chromatograph directly to the PC avoiding hubs, switches etc. Contact
your local LAN administrator who can make the appropriate settings.
In case your network uses firewall for protection, make sure that
connection is not blocked in both directions. (chromatograph uses
separate connection for control communication and for data sending).

Caution: Cross LAN cable is primarily used for the direct connection of the

chromatograph and the PC. This cable can also be used for the
connection of the device to the switch or network socket, but with older
switches, the straight LAN cable might be necessary.

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3 Installation Procedure Clarity Controls

3.2 Clarity Configuration

Fig 2: System Configuration

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Agilent 7890 3 Installation Procedure

l In the System Configuration dialog press the Add button ① to invoke the

Available Control Modules dialog.

l Type "7890" into the searching field on the top of the dialog ② for quick

filtering out the desired instrument.

l Select the Agilent 7890 in the GC section and press the Add button.③
l The Agilent 7890 Setup dialog will appear.

Fig 3: Agilent 7890 Setup

l Fill in the IP address of the 7890 and IP address for receiving data (i.e. IP

address of computer with installed Clarity datastation). Ask your
company's IT person if you don't know them. A default IP address of most
Agilent GC's is 10.1.1.101 which is suitable only in case the GC is
connected directly to computer using separate network.

l Press the Autodetect button to read all settings from the instrument. Upon

successful detection the serial number of the GC will be displayed.

Note: In most cases it is recommended not to change the settings obtained

through the Autodetect function. However some modules (e.g. PCM,
valves or Aux Pressure modules) are not autodetected correctly and in
certain systems it is necessary to set them manually.

l Check the Keyboard Lock checkbox for ensuring the exclusive access to the

chromatograph. Apart from locking the keyboard of the device, this will also
prevent other users connected to the same network from connecting to the
chromatograph.

l Switch to the GC tab to verify the correct detection of injectors, inlets, detectors

and columns. Do not change the autodetected values.

l Switch to the Signals tab (for more details see the Agilent 7890 Setup

dialog section later in the manual ), select the correct number of signals

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3 Installation Procedure Clarity Controls

you want to acquire, name them and possibly check This Device Starts the

Run in Clarity / Clarity Starts This Device radiobutton. The Clarity Starts
This Device option should be checked only when the GC will not start the

acquisition (that means it will not be triggered by the GC Start button,
external start contact or autosampler). Press the OK button.

l On the Sampler tab verify the auto detected sampler version and

components, set the Syringe Size and Solvent Wash Mode.

l On Valves tab verify the identified valves, on the Aux tab verify the

detected auxiliaries.

l Press OK. The Agilent 7890 item ④ will appear in the Setup Control

Modules list of the System Configuration dialog.

l Drag the GC icon from the Setup Control Modules list on the left side to

the desired Instrument tab ⑤ on the right side ⑥ , or use the button ⑦
to do so.

Note: In case there is no detector used with 7890 it is necessary to add other

detector to the same Instrument (e.g. DEMO detector available on each
station), otherwise it would be not possible to send the method and start
the GC by Clarity.

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Agilent 7890 4 Using the control module

4 Using the control module

New GC tab appears in the Method Setup dialog, enabling the setting of
the GC control method. With an automatic sampler configured, AS tab also
appears, allowing the setting of the autosampler method.

4.1 Hardware Configuration

Fig 4: Hardware Configuration

This dialog is invoked by pressing the GC Status button in the Method

Setup - GC dialog. Hardware Configuration dialog displays the type of the

chromatograph, it's serial number and the IP address and port to which it
is connected.

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