Rosemount MON2020 Software for Gas Chromatographs Manuals & Guides

Reference Manual

2-3-9000-745, Rev H

December 2019

MON2020 Software for Gas Chromatographs

Notice

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LIMITED WARRANTY: Subject to the limitations contained in Section 2 herein and except as otherwise expressly provided

1.
herein, Rosemount (“Seller”) warrants that the firmware will execute the programming instructions provided by Seller
and that the Goods manufactured or Services provided by Seller will be free from defects in materials or workmanship
under normal use and care until the expiration of the applicable warranty period. Goods are warranted for twelve (12)
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1 Getting started

Welcome to MON2020—a menu-driven, Windows-based software program designed to
remotely operate and monitor the Rosemount™ XA series of gas chromatographs.

MON2020 operates on an IBM-compatible personal computer (PC) running the
Windows 7® operating system or later.

MON2020 can initiate or control the following gas chromatograph (GC) functions:

• Alarm parameters

• Alarm and event processing

• Analog scale adjustments

• Analyses

• Baseline runs

• Calculation assignments and configurations

• Calibrations

• Component assignments and configurations

• Diagnostics

• Event sequences

• Halt operations

• Stream assignments and sequences

• Valve activations

• Timing adjustments

MON2020 can generate the following reports:

• Analysis (GPA)

• Analysis (ISO)

• Calibration

• Final Calibration

• Validation

• Final Validation

• Hourly Averages

• Monthly Averages

• Daily Averages

• GC Configuration

• Raw Data

• Variable Averages

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• Weekly Averages

• Dew Temperature Calculation (optional)

MON2020 can access and display the following GC-generated logs:

• Alarm Log

• Event Log

• Parameter List

• Maintenance Log

1.1 MON2000 and MON2020

Users familiar with MON2000 or MON2000 Plus will find a few changes when using
MON2020:

• Login security is at the gas chromatograph level instead of at the software level. This

means that you no longer have to log in after starting MON2020—but you do have to
log in to the gas chromatograph to which you are trying to connect. For more
information, see Connect.

• An Administrator role has been added to the list of user roles. This new role has the

highest level of authority and is the only role that can create or delete all other roles
and users. For more information, see Users.

• Multiple users can connect to the same gas chromatograph simultaneously. By default,

the first user to log in to the GC with supervisor authority will have read/write access; all
other users, including other supervisor-level users, will have read access only. This
configuration can be changed so that all supervisor-level users have read/write access
regardless of who logs in first. For more information, see Managing the system.

•

Users can display multiple windows within MON2020.

• Automatic re-connection. If MON2020 loses its connection with the GC, it

automatically attempts to reconnect.

• Analytical Train Configuration. Users can configure Analytical Trains for the detectors,

valves and discrete outputs enabled by selecting the checkboxes. The number of
detectors, valves and discrete outputs is depenent on the installed hardware of the GC.

• Analysis Clock Configuration Users can configure/save settings of assigned analytical

trains to analysis.

• Users can view multiple instances of certain windows. To aid in data processing or

troubleshooting, MON2020 is capable of displaying more than one instance of certain
data-heavy windows such as the Chromatogram Viewer and the Trend Data window.

• Enhanced Chromatogram Viewer. The following enhancements have been made to the

Chromatogram Viewer:

— Users can view an unlimited number of chromatograms, in any configuration. For

example, a user can view an archived chromatogram and a live chromatogram. For
more information, see The Chromatogram Viewer.

— The Keep Last CGM option. Upon starting a new run, MON2020 can keep the most

recently completed chromatogram on the graph for reference.

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— Overview window. When zoomed in to a smaller section of a chromatogram, the

user can open a miniature ‘overview’ window that displays the entire
chromatogram, for reference. For more information, see Additional plot

commands.

— Older chromatograms available. MON2020 has access to archived chromatograms

as old as four or five days. For more information, see Display an archived

chromatogram.

— Full screen mode. For more information, see Options for displaying

chromatograms.

— Protected chromatograms. Chromatograms that you designate as protected will

not be deleted. For more information, see Protected chromatograms.

• The Invert Polarity option. This feature reverses a detector’s effect. For more

information, see Invert the polarity of a valve and Invert the polarity of a discrete input.

• Streamlined variables-picking menu. The method for selecting variables for

calculations and other purposes is contained within one simple, self-contained menu.
For more information, see The context-sensitive variable selector.

• GC Time. The GC Status Bar displays the date and time based on the GC’s physical

location, which may be different than the PC’s location. For more information, see Set

the gas chromatograph’s date and time.

• Daylight Savings Time. You have option of enabling a GC’s Daylight Savings Time

feature. Also, there are two options for setting the start and end times for Daylight
Savings Time on the GC. For more information, see Set Daylight Savings.

• Baseline offsetting (700XA and 1500 XA only). In some situations that involve multiple

detectors, the baseline may be displayed either too high on the graph, in which case
the tops of the peaks are cut off, or too low on the graph, so that the bases of the peaks
are cut off. If this occurs, it is possible to offset the baseline either up or down so that
the entire peak can be displayed on the graph. This offset will be applied to all traces—
live, archived, and saved—that are displayed thereafter. For more information, see

Offset the baseline (700XA and1500XA only).

• Microsoft Excel-based Parameter List. The Parameter List has been expanded to offer

multiple pages of information and is Microsoft® Excel-based to allow for data access
outside of MON2020. The document can be imported to and exported from GCs. For
more information, see The parameter list.

• Optional FOUNDATION Fieldbus variables. If your GC is installed with a FOUNDATION

Fieldbus, you can map up to 64 GC variables to monitor using the AMS Suite. For more
information, see Map a FOUNDATION Fieldbus variable.

• Optional local operator interface (LOI) variables. If your GC is installed with an LOI, you

can configure up to 25 GC parameters to monitor using the LOI’s Display mode. For
more information, see Local Operator Interface variables.

•

Access to GC-related drawings such as flow diagrams, assembly drawings, and
electrical diagrams.

• Validation runs. During a validation run, the GC performs a test analysis to verify that it

is working properly. For more information, see The validation data tables and Validate

the gas chromatograph.

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1.2 Getting started with MON2020

This section covers such issues as installing, registering, and setting up the software, as
well as configuring MON2020 to meet your specific needs.

1.2.1 System requirements

To achieve maximum performance when running the MON2020 software, ensure your PC
system meets the following requirements.

Compatible operating systems:

• Windows® 7, Windows® 8 or Windows® 10

• Internet Explorer® 9 or higher
— Microsoft Edge

— Mozillla Firefox

— Google Chrome

Minimum hardware specifications:

1.2.2

• 1 gigahertz (GHz) 32-bit or 64-bit processor

• 1 gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit)

• 1 GB available hard disk space

• Super VGA Monitor with 1024 x 768 or higher resolution

• One Ethernet Port for connecting to Gas Chromatographs

• Windows®-compatible printer for printing reports (Optional)

Install MON2020

You must install MON2020 from the USB drive onto your hard drive; you cannot run the
program from the USB.

Double-click the Setup file and follow the on-screen installation instructions.

Upon successful installation, MON2020 creates a shortcut icon on the computer’s
desktop.

Note

MON2020 is not an upgrade to MON2000; therefore, MON2020 should be installed to its
own directory, separate from the MON2000 directory.

Note

You must be logged onto the computer as an administrator to install MON2020.
Windows™ 7 and Windows™ 10 users, even with administrator privileges, will be prompted
by the operating system’s User Account Control feature to allow or cancel the
installation.

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1.2.3 Start MON2020

To launch MON2020, double-click its desktop icon or click the Start button and select
MON2020.

1.2.4 Register MON2020

Each time you start MON2020 it will prompt you to register if you have not already done
so. You can also register by selecting Register MON2020... from the Help menu.

Registering your copy of MON2020 allows you to receive information about free updates
and related products.

Procedure

1. Complete the appropriate fields on the Register MON2020 window.

Note

The software's revision level is located on the back of its USB.

1.2.5

2. Click Next to continue.

3. Choose the desired registration method by clicking the corresponding checkbox.

4. Click Finish.

Set up the data folder

The data folder stores GC-specific files such as reports and chromatograms. The default
location for the data folder is C:\Users\user_account_name\Documents\GCXA Data. If
you want MON2020 to store its data in a different location—on a network drive, for
instance—do the following:

Procedure

1. Move the data folder to its new location.

2. Select Program Settings... from the File menu.

3. The current location of the data folder displays in the Data Folder field.

To change the data folder’s location, click on the Browse button that is located to
the right of the Data Folder field.

4. Use the Browse for Folder window to navigate to the GCXP Data folder’s new

location and click OK.

Note

Another method for changing the folder location is to type the folder’s location into
the Data Folder field and press ENTER. When the “Create the folder?” message
appears, click Yes.

5. The Data Folder field updates to display the new location.

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1.2.6 Set up MON2020 to connect to a gas chromatograph

To configure MON2020 to connect to a GC, do the following:

Procedure

1. Select GC Directory... from the File menu.

If this is the first time that this option was selected, you will get the following error
message:

Figure 1-1: “GC directory file not found” message

If you get the GC directory file not found message, click OK. The GC Directory window
appears and displays a table containing an inventory of the GCs to which MON2020
can connect.

2. If you are configuring the first GC connection for MON2020, there will be only one

generic GC record listed in the window. To add another record, select Add from the
GC Directory window’s File menu. A new row will be added to the bottom of the
table.

3. Click in the GC Name field and enter the name for the GC to which you want to

connect.

4. Optionally, you can click in the Short Desc field and enter pertinent information

about the GC to which you want to connect, such as its location. You can enter up
to 100 characters in this field.

5. By default, Ethernet 1 (RJ45 connection on the backplane) is selected as the

connection method. Other options are Direct and Ethernet 2 (terminal block on the
backplane). Select the correct check box. Multiple connection methods can be
selected. For Ethernet 1 or Ethernet 2, click the button on the bottom of the screen.
The Ethernet Connection Properties for New GC window appears.

a) Enable the radio button for the connection type.

• IP address - numeric value

• Server name - alphabetical value

b) Select the designated port, a shared public Internet connection network

address translation (NAT) using a single IP address assigned to different GCs.

• FTP

• Database

• Chromatogram

• Modbus

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Note

The default address for the GC's RJ-45 port in DHCP mode is 192.168.135.100.

Note

If you type an invalid IP address, you will get an error message when MON2020
attempts to connect to the GC.

6. Click OK. When the Save changes? message appears, click Yes.

7. Repeat steps 2 through 6 for any other GCs to which you want to connect.

8. To delete a GC from the GC Directory table, select the GC and then click Delete

button from the File window.

9. To copy a GC's configuration information into a new row, select the row to be

copied and then select Insert Duplicate from the File window.

10. To insert a row below a GC, select the GC and then select Insert from the File
window.

11. To sort the table alphabetically, select Sort from the Tablewindow or click Sort from
the GC Directory window.

12. To copy the list of GCs to the clipboard to be pasted into another application, select
Copy Table to Clipboard from the Table window.

13. To print the list of GCs, select Print Table... from the Table window.

14. To save the changes and keep the window open click Save from the GC Directory
window. To save the changes and close the window, click OK. When the Save
changes? message appears, click Yes.

1.2.7

For more details about configuring MON2020 connections, see Configure an

Ethernet port.

Export a GC directory

The GC Directory, which contains the list of networked GCs that are currently configured
for your copy of MON2020, can be saved as a DAT file to a PC or other storage media such
as a compact disk or flash drive.

To save the GC Directory to the PC, do the following:

Procedure

1. Click Export.
The Export GC Directory window displays.

2. Select the checkbox for each gas chromatograph whose information you want to
save.

Note

If you want to save the entire list, click Select All.

3. Click OK.
The Export GC Directory File save as dialog displays.

4. Choose a save location.

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The default location is C:\Users\user_account_name\Documents\GCXA Data.

Note

The file is automatically given the name of GC_DIRECTORY_EXPORT.DAT. If you
prefer a different name, type it into the File name field.

5. Click Save.

1.2.8 Import a GC Directory file

A GC Directory file can be used to restore GC directory information to your copy of
MON2020, or it can be used to quickly and easily supply other copies of MON2020 that are
installed on other computers with the profiles of the GCs that are in your network.

To import a GC Directory file, do the following:

Procedure

1. Select GC Directory... from the File menu.

If this is the first time that this option was selected, you will get the following error
message:

1.2.9

Figure 1-2: GC directory file not found" message

If you get the "GC directory file not found" message, click OK. The GC Directory
window appears

2. Click Import.
The Import GC Directory File dialog displays.

3. Locate the GC directory file and select it.

4. Click Open.
The newly configured GC Directory window reappears with the list of networked GCs
displayed in the GC Directory table.

Launch MON2020 from the SNAP-ON for DeltaV

This section assumes that DeltaV is installed on the PC along with MON2020.

Note

To successfully use MON2020 SNAP-ON for DeltaV, you must be familiar with using the
DeltaV digital automation system.

To start MON2020, do the following:

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Procedure

1. Start the DeltaV Explorer by clicking on its desktop icon or by clicking the Start
button and selecting DeltaV → Engineering → DeltaV Explorer.

2. In the Device Connection View, open device icons by clicking once on each icon.
Follow the path of connections until you locate the desired gas chromatograph
icon.

3. Right-click on a connected gas chromatograph icon to display the context menu.

4. Select SNAP-ON/Linked Apps → Launch MON2020.
MON2020 starts and connects automatically to the GC.

1.2.10 Launch MON2020 from the AMS Device Manager

This section assumes that DeltaV and AMS are installed on the PC along with MON2020.

To start MON2020, do the following:

Procedure

1. Start the AMS Device Manager by clicking on its desktop icon or by clicking the Start
button and selecting AMS Device Manager → AMS Device Manager.

2. In the Device Connection View, open device icons by clicking once on each icon.
Follow the path of connections until you locate the desired gas chromatograph
icon.

3. Right-click on a connected gas chromatograph icon to display the context menu.

4. Select SNAP-ON/Linked Apps → Launch MON2020.
MON2020 starts and connects automatically to the GC.

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1.2.11 The MON2020 user interface

MON2020 has two areas of interaction: the Control Area, at the top of the program’s main
window, and the GC Status Bar, located at the bottom of the program’s main window.

Figure 1-3: The MON2020 window

A. Control Area

B. GC Status Bar

The main user interface

The main user interface of the main window contains the menus and icons that allow you
to control MON2020 and the GC to which MON2020 is connected.

Figure 1-4: The Control Area

A. Title bar
B. Toolbar
C. Menu bar

D. Dialog Control Tabs

• Title bar - The Title bar displays the name of the program, as well as the program’s

connection status. MON2020 has the following three overall status modes:

— Not connected - If MON2020 is not connected to a GC, then MON2020 displays in

the Title bar.

—

Connected - If MON2020 is connected to a GC, then MON2020 - Connected to and
the name of the GC and the connection type displays in the Title bar.

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— Offline Edit - If MON2020 is in offline edit mode, then MON2020 - Offline Edit < file

name> displays in the Title bar.

• Menu bar - The Menu bar contains the commands that allow you to control and

monitor gas chromatographs.

• Toolbar - The Toolbar contains shortcut icons for the most important and/or most

often used MON2020 commands. From the Toolbar you can do such things as connect
to and disconnect from a GC, view chromatographs, and view help files.

Connect to a gas chromatograph.

Disconnect from a gas chromatograph.

Open a configuration file.

Print a GC configuration report.

View the Timed Events window.

View the Component Data window.

Clear or acknowledge alarms.

Open the CGM Viewer window.

Begin auto sequencing.

Halt auto sequencing.

Open the MON2020 context-sensitive Help.

• Dialog Control Tabs bar - The Dialog Control Tabs bar contains four buttons that allow

you to manage the behavior of all windows that are open in the main window. The four
buttons are Minimize All, Maximize All, Restore All, and Close All. The bar also
displays a button for each open window that allows you to select or deselect that
window.

You can hide or display the Toolbar and the Dialog Control Tabs bar by clicking the
appropriate option from the View menu.

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The GC Status Bar

The GC Status Bar of the main window displays useful information about the status and
functioning of the gas chromatograph to which MON2020 is connected.

The GC Status Bar contains the following sections:

GC

Analysis Clock
Name

Det #

Mode

Stream

Next

Anly

The first row displays the name of the GC to which MON2020 is
connected. If MON2020 is not connected to a GC, Not Connected
displays in this row. If MON2020 loses its connection to the GC, Comm
Fail displays in this row, and the program will automatically try to
reconnect. The second row displays status flags such as active alarms
(with red background), unacknowledged alarms (with yellow
background).

This field displays the Analysis Clock 1 or Analysis Clock 2, Analysis
Clock N (where N represents the number of the Analysis Clock).
Multiple analyses can run independently to analyze multiple streams at
the same time. The GC can run two or more (maximum four) analyses
at a time. The number of analyses are set at factory per the mechanical
configurations.

A GC can have a maximum of three detectors.

Potential modes are: Idle, Warmstart Mode, Manual Anly, Manual Cal,
Manual Validation, Auto Anly, Auto Cal, Auto Validation, Auto Valve
Timing, Module Validation, CV Check, Manual Purge, Auto Purge, and
Actuation Purge.

The current stream being analyzed.

The next stream to be analyzed.

The analysis time.

Cycle

Run

GC System

Foundation
Field Bus FFB

FID Flame
Status

You can hide or display the GC Status Bar by clicking GC Status Bar from the View menu.

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The total cycle time, in seconds, between successive analyses.

The amount of time, in seconds, that has elapsed since the current
cycle began.

Displays the date and time according to the GC to which MON2020 is
connected. The date and time displayed may be different from your
date and time, depending on the physical location of the GC.

Displays the status as In Service or Not In Service.

Displays the status of the FID flame. Options are OFF with red
background, ON with green background, and OVER TEMP with red
background. The FID Flame Status indicator only displays on the GC
Status Bar when the GC to which MON2020 is connected has an FID
detector.

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1.2.12 Connect

Before connecting to a GC you must create a profile for it on MON2020. See Set up

MON2020 to connect to a gas chromatograph to learn how to do this.

Also, to connect to a gas chromatograph you must log on to it first. Most of MON2020’s
menus and options are inactive until you have logged on to a GC.

To connect to a GC, do the following:

Procedure

1. There are two ways to start the process:

a) On the Toolbar, click the icon.

b) Select Connect... from the Chromatograph menu.

The Connect to GC dialog, which displays a list of all the GCs to which you can
connect, appears.

Note

If you want to edit the connection parameters for one or all GCs listed in the Connect
to GC window, click Edit Directory. The GC Directory window appears. See Set up

MON2020 to connect to a gas chromatograph for more information.

1.2.13

2. Click the connection method (Direct, Modem, Ethernet 1, or Ethernet 2) button

beside the GC to which you want to connect.
The Login dialog appears.

3. Enter a user name and user PIN and click OK.

Once connected, the name of the GC appears under the GC column in the GC Status
Bar.

Note

All GCs are shipped with a default user name:. The MON2020 security policy
requires a user password for the first time log in. To add a user password or user
name or for information about creating and edit user names in general, see Users.

Note

If you enter an invalid user name or password, the Login dialog closes without
connecting to the GC.

Disconnect from a gas chromatograph

Disconnecting from a GC automatically logs you off of the GC.

To disconnect from a gas chromatograph, do one of the following:

• On the Toolbar, click .

• Select Disconnect from the Chromatograph menu.

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Note

If you are connected to a GC and want to connect to a different GC, it is not necessary to
disconnect first; simply connect to the second GC, and in the process MON2020
disconnects from the first GC.

1.3 Keyboard commands

You can use the following keyboard keystrokes throughout the program:

Arrow keys

Delete

Enter

Esc

F1

Insert

Tab

Shift+Tab

Space

Moves cursor:

• Left or right in a data field.

• Up or down in a menu or combo box.

• Up or down (column), left or right (row) through displayed data entries.

• Deletes the character after cursor.

• Deletes selected rows from a table or return row values to the default

settings.

Activates the default control element (e.g., the OK button) in current
window.

Exits application or active window without saving data.

Accesses context-sensitive help topics.

Toggles between insert and type-over mode in selected cell.

Moves to the next control element (e.g., button) in the window; to use Tab
key to move to next data field, select Program Settings... from the File
menu and clear the Tab from spreadsheet to next control check box.

Moves to previous control element (e.g., button) or data field in window;
see Tab description.

Toggles settings (via radio buttons or check boxes).

You can use the following function keys from the main window:

F2

Starts the Auto-Sequencing function. See Auto Sequence for more information.

F3

Halts the GC (e.g., an analysis run) at the end of the current cycle. See Halt an analysis
for more information.

F5

Displays the Timed Events table per specified stream. See The timed events tables for
more information.

F6

Displays the Component Data table per specified stream. See The component data

tables for more information.

F7

Displays the chromatogram for the sample stream being analyzed. See Display a live

chromatogram for more information.

F8

Displays any chromatogram stored in the GC Controller. See Display an archived

chromatogram for more information.

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1.4 Procedures guide

Use the following table to look up the related manual section, menu path and, if
appropriate, the keystroke for a given procedure.

Table 1-1: MON2020 task list

Task or data item Section(s) Menu path (keystroke)

24-hour average, component(s)
measured

Add a gas chromatograph Set up MON2020 to connect to a gas

Alarms, related components The component data tables

Alarms, stream number(s)
programmed

Analysis time Set the cycle and analysis time Application → Timed Events... [F5]

Print analysis, Average reports Schedule the generation of reports Logs/Reports → Printer Control...

Starting or ending auto-calibration Streams Application → Streams...

Auto-calibration interval Streams Application → Streams...

Auto-calibration start time Streams Application → Streams...

Auto-calibration Streams Application → Streams...

Analytical Train Configuration Analytical Train Configuration Application → Analytical Train

Analysis Clock Configuration Analysis Clock Configuration Application → Analysis Clock

Base pressure used for calculations Streams Application → Streams...

Edit averages calculations Application → Calculations →

Averages...

File → GC Directory

chromatograph

Application → Component Data... [F6]

Set alarm limits
Discrete outputs

Set alarm limits Application → Limit Alarms → User...

Application → Limit Alarms → User...
Hardware → Discrete Outputs...

Configuration

Configuration

Calibration concentration The component data tables Application → Component Data... [F6]

Calibration cycle time Set the cycle and analysis time Application → Timed Events... [F5]

Calibration runs, number averaged Streams Application → Streams...

Calibration runs, number of Streams Application → Streams...

Calibration stream number Streams Application → Streams...

Change the default C6+ mixture ratio

Communications Communication Application → Communication...

Component code and name The component data tables Application → Component Data... [F6]

Component full scale (for output) Configure the system

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Change the default C6+ mixture ratio

Analog outputs

Application → Component Data
Table...

Application → Ethernet Ports...

Application → System...
Application → System Alarms...

Hardware → Analog Outputs...

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Table 1-1: MON2020 task list (continued)

Task or data item Section(s) Menu path (keystroke)

Component(s) programmed for input Analog outputs

Discrete inputs

Component(s) programmed for
output

Component, retention time The component data tables Application → Component Data... [F6]

Component zero (for output) Analog outputs Hardware → Analog Outputs...

Compressibility (on/off) Set standard calculations by stream Application → Calculations →

Configure the valve timing Configure the valve timing Application → Timed Events...

Current date Set the gas chromatograph’s date and

Current time Set the gas chromatograph’s date and

Cycle time Set the cycle and analysis time Application → Timed Events... [F5]

Delete alarms Set alarm limits

Set alarm limits
Analog outputs

Discrete outputs

time

time

Alarms

Hardware → Analog Inputs...
Hardware → Discrete Inputs...

Application → Limit Alarms → User...
Hardware → Analog Outputs...

Hardware → Discrete Outputs...

Control...

(Rosemount 700XA and
Rosemount1500XA)
Application → Timed Events... or
Control → Auto Valve Timing...
(Rosemount 370XA)

Chromatograph → View/Set GC
Time...

Chromatograph → View/Set GC
Time...

Application → Limit Alarms...
Logs/Reports → Alarms → Alarm
Log...

Delete component from component
list

Delete inhibit, integration, peak width The component data tables Application → Timed Events... [F5]

Delete output(s) Analog outputs

Enable or disable multi-user write Configure the system Application → System...

Existing alarm(s) Alarms Logs/Reports → Alarms → Alarm

Full-scale value (for input) Manage your gas chromatograph’s

Generate a repeatability certificate Generate a repeatability certificate Logs/Reports → Repeatability

GPM liquid equivalent (on/off) Set standard calculations by stream Application → Calculations →

Height or area measurement method The component data tables Application → Component Data... [F6]

High alarm Set alarm limits Application → Limit Alarms → User...

Analyzer I.D. Configure the system Application → System...

The component data tables Application → Component Data... [F6]

Hardware → Analog Outputs...

Discrete outputs

analog inputs

Hardware → Discrete Outputs...

Log...

Hardware → Analog Inputs...

Certificate...

Control...

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Table 1-1: MON2020 task list (continued)

Task or data item Section(s) Menu path (keystroke)

Inhibit on-off times Set the cycle and analysis time Application → Timed Events... [F5]

Input(s) being used Manage your gas chromatograph’s

analog inputs
Discrete inputs

Integration on-off times Set the cycle and analysis time Application → Timed Events... [F5]

Low alarm Set alarm limits Application → Limit Alarms → User...

Manage the GC's pressure (with
Electronic Pressure Controls)

Mole percent (on/off) Set standard calculations by stream Application → Calculations →

Normalization (on/off) Set standard calculations by stream Application → Calculations →

Outputs being used Set alarm limits

Peak width, on time Set the cycle and analysis time Application → Timed Events... [F5]

Relative density (on/off) Set standard calculations by stream Application → Calculations →

Response factor The component data tables Application → Component Data... [F6]

Response factor, percent deviation The component data tables Application → Component Data... [F6]

Retention time, percent deviation The component data tables Application → Component Data... [F6]

Managing the gas chromatograph's
pressure

Analog outputs
Discrete outputs

Hardware → Analog Inputs...
Hardware → Discrete Inputs...

Hardware → EPC... (Rosemount
370XA)

Control...

Control...

Application → Limit Alarms → User...
Hardware → Analog Outputs...

Hardware → Discrete Outputs...

Control...

Spectrum gain Configure spectrum gain events Application → Timed Events... [F5]

Stream number(s) (for output) Set alarm limits

Analog outputs
Discrete outputs

Stream sequences skipped, number Configure the system

Streams

Streams analyzed, number Configure the system

Streams

Streams analyzed, sequence Configure the system

Streams

Valve on/off times Configure valve events Application → Timed Events... [F5]

Weight percent (on/off) Set standard calculations by stream Application → Calculations →

Wobbe value (on/off) Set standard calculations by stream Application → Calculations →

Zero value (for input) Manage your gas chromatograph’s

analog inputs

Application → Limit Alarms → User...
Hardware → Analog Outputs...

Hardware → Discrete Outputs...

Application → Streams...
Application → Stream Sequence...

Application → System...
Application → Streams...

Application → System...
Application → Streams...

Control...

Control...

Hardware → Analog Inputs...

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1.5 Configuration files

Use the File menu to edit, save, and restore configuration files.

1.5.1 Edit a configuration file

To edit a configuration file, do the following:

Procedure

1. Disconnect from the GC.

2. Select Open Configuration File... from the File menu.
The Open dialog displays. Configuration files are saved with the .xcfg extension.

3. Locate and select the configuration file that you want to edit and click Open.
MON2020 opens the file in offline edit mode.

4. Use the Application and Hardware menu commands to edit the configuration file.
For more information on these commands, see Hardware and Application.

5. When finished editing the configuration file, click
configuration file and to leave offline edit mode.

to save the changes to the

1.5.2

1.5.3

Save the current configuration

Configuration files are saved with the .xcfg extension. To save a GC’s current configuration
to a PC, do the following:

Procedure

1. Select Save Configuration (to PC)... from the File menu.
The Save as dialog displays.

2. Give the file a descriptive name or use the pre-generated file name and navigate to
the folder to which you want to save the file.

3. Click Save.

Import a configuration file

CAUTION

The current configuration will be overwritten, so be sure to save it before importing a new
or previous configuration. See Save the current configuration to learn how to save a
configuration.

CAUTION

The GC must be in Idle mode while performing this task.

To import a configuration into a GC, do the following:

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Procedure

1. Select Restore Configuration (to GC)... from the File menu.
The Open dialog displays. Configuration files are saved with the .xcfg extension.

2. Locate and select the configuration file that you want to import and click Open.
The file’s data is loaded into the GC.

1.5.4 Restore the GC's factory settings

The GC’s default timed event, component data and validation data tables are created at
the factory and are not accessible by users. To restore these tables to their default values,
do the following:

Important

The GC must be in Idle mode while performing this task. To halt an analysis, see Halt an

analysis.

Procedure

1. Select Restore to Factory Settings... from the File menu.
The following warning message displays:

Figure 1-5: Restore to Factory Settings warning message

2. Click Yes.
MON2020 restores the default values to the GC’s data tables. When the process is
completed, a confirmation message displays.

3. Click OK.

1.6 Configure your printer

Select Print Setup... from the File menu to configure the settings for the printer
connected to your PC. These settings will apply to any print job queued from MON2020,
such as the reports that are configured by the Printer Control. See Schedule the

generation of reports for information.

The settings available depend on the printer model. Refer to the printer manufacture’s
user manual for more information.

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Note

Your new configuration will be cleared, i.e., the settings will return to the default values,
when you exit MON2020. To select a default printer, select Devices and Printers in the
Windows™ Control Panel.

1.7 Online help

Currently, the online help feature contains all user information and instructions for each
MON2020 function as well as the MON2020 system.

To access the online help, do one of the following:

• Press F1 to view help topics related to the currently active dialog or function.

• Select Help Topics from the Help menu to view the help contents dialog.

1.8 Operating modes for MON2020

The Rosemount 370XA GC supports two different operating modes. Each mode allows the
GC to analyze data from a given number of detectors, streams, and methods, as detailed
in below.

Table 1-2: Operating Modes for MON2020

Mode ID Number Detectors Supported Streams Supported Methods Supported

0 1 1 1

1 2 1 1

The Rosemount 700XA and 1500XA GCs use the Application → Analyitical Train
Configuration to configure the detectors, valves, and discrete outputs.

1.9 The Physical Name column

Most MON2020 hardware windows, such as the analog inputs or the valves, contain a
hidden column called Physical Name that lists the default name of the associated GC
device. It might be useful to know a device’s physical name while troubleshooting.

To view the hidden column, do the following:

Procedure

1. Select Program Settings... from the File menu.
The Program Settings window displays.

2. Select the Show Physical Names checkbox.

3. Click OK.
The Physical Name column now will be visible on all windows that have the column,
such as the Heater window or the Valves window.

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1.10 Select the GC’s networking protocol

MON2020 can connect to the GC using one of two networking protocols: PPP or SLIP. If
the version level of the GC’s firmware is 1.2 or lower, MON2020 should be configured to
use the SLIP protocol; otherwise, the PPP protocol should be used.

To select the GC’s networking protocol, do the following:

Procedure

1. Select Program Settings... from the File menu.
The Program Settings window displays.

2. To use the PPP protocol, make sure the Use PPP protocol for serial connection
(use SLIP if unchecked) checkbox is selected; to use the SLIP protocol, make sure
the Use PPP protocol for serial connection (use SLIP if unchecked) checkbox is
not selected.

3. Click OK.

1.11 The context-sensitive variable selector

The MON2020 method for selecting variables for calculations and other purposes is based
on a simple, self-contained system. You may access the context-sensitive variable selector
from several different screens. The variables you see are dependent on the screen from
which you are viewing them. One screen that has a context-sensitive variable selector is
the Averages Calculations screen. To access this screen, go to Application → Calculations
→ Averages..

Figure 1-6: Example of a context-sensitive variable selector

The context-sensitive variable selector consists of a first-level element, called the context
element, that is followed by a series of tiered, dropdown lists. The options available from

the dropdown lists depend upon the context element.

The following example explains how to use the context-sensitive variable selector to select
a gas component:

Procedure

1. Click the first-level dropdown list.
The full list of available categories displays.

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2. Select the category you want to analyze.

3. Click the second-level dropdown list.
The full list of available streams displays.

4. Select the stream you want to analyze.

5. Click the third-level dropdown list.
The full list of available variables displays.

6. Select the variable you want to analyze.

7. Click the fourth-level dropdown list.
The full list of available components displays.

8. Select the component you want to analyze.

9. Click [Done].
The context-sensitive variable selector closes and the variable displays in the
Variable field. In the example shown in Figure 1-6, the Variable field would display: .

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2 Chromatograms

When it comes to viewing and managing chromatograms, MON2020 is flexible and
straightforward. This chapter shows you how to access the Chromatogram Viewer, as well
as how to use the viewer to display, print, and manipulate live, archived (stored on the
GC), or saved (stored on the PC) chromatograms. There is no limit to the number of
archived and saved chromatograms that can be displayed at once. The Chromatogram
Viewer can display all three types of chromatograms together, alone, or in any
combination.

Figure 2-1: The Chromatogram Viewer

A. Chromatogram window
B. Time events table
C. Component data table

A chromatogram displays in the Chromatogram window.

Each trace that displays is color-coded; use the Chromatogram drop-down list to select a
specific trace.

Figure 2-2: Chromatogram drop-down list

The list of GC events associated with the production of the chromatogram, along with
each event’s status and time, displays in the Timed Events table to the right of the
chromatogram display window. The Component Data table, to the lower right of the
chromatogram display window, lists the components measured during the analysis.

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Note

When displaying a live chromatogram, by default, the timed events and component data
tables are configured to scroll to and highlight the next occurring event in the analysis
cycle. To disable this feature, right-click on one of the tables and uncheck the Auto Scroll
option on the pop-up menu.

2.1 The Chromatogram Viewer

Use the Chromatogram Viewer to display and print live, archived, or saved chromatograms.
There is no limit to the number of archived and saved chromatograms that can be
displayed at once; however, to maximize performance, the number of chromatograms
displayed should be limited to 25 or less. The Chromatogram Viewer can display all three
types of chromatograms together, alone, or in any combination.

The Chromatogram Viewer contains a host of information about both current and past GC
analyses, and it contains just as many ways of editing and manipulating that data.

2.1.1

Data displayed in the chromatogram window

Figure 2-3: The Chromatogram window

A. Retention time

B. Peak detection marker

C. Timed event marker

The following elements are displayed in the chromatogram window:

The
chromatogram

26 Rosemount Gas Chromatographs

A trace is the graphical representation of the detector output from a
single detector; a chromatogram is the collection of all traces and
associated data that are generated by a gas chromatograph’s
detector or detectors. Each trace displays in a different color.

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Retention times

Baselines

Timed event
markers

Peak detection
markers

The retention time, which displays above each component's peak,
is the time that elapses between the start of an analysis and the
sensing of the maximum concentration of that component by the
detector.

The baseline extends from the beginning to the end of a peak. You
can turn the baseline on or off by clicking Baselines.

These markers, which correspond to events from the Timed Events
table, display on the chromatogram as black vertical lines below the
trace-line. There are three types of timed event markers:

• Valve events display as long vertical lines.

• Integration events display as medium vertical lines.

• Spectrum gain events display as short vertical lines.

These markers display on the chromatogram as black vertical lines
above the trace-line. Each peak has two peak detection markers:
one at its beginning and one at its end.

2.1.2 Display a live chromatogram

To view a live chromatogram, do the following:

Procedure

2.1.3

1. Connect to the GC.

2. Select Chromatogram Viewer... from the Chromatograph menu.

Note

Another way to display the Chromatogram Viewer is to click
the Toolbar.

3. From the Chromatogram Viewer window, select the View current CGM check box.

4. If the GC has multiple clocks, select which clock/analysis Chromatogram you would
like to view.

, which is located on

Display an archived chromatogram

Archived chromatograms are stored on the GC, so you must be logged in to access them.

Archived chromatograms are sorted and displayed on four tabbed panes:

Chromatograms

This view displays the last five runs for each stream by default.
Click All to display all the files that are stored on the GC and sorted
by time.

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Protected
chromatograms

Protected chromatograms are never deleted from the GC. To
protect a chromatogram, see Protected chromatograms.

Note

Protected chromatogram files have a lock icon ( ) displayed
beside them.

Final Calibration
chromatograms

As long as there is space, MON2020 stores all final calibration
chromatograms; once space runs out, MON2020 deletes the
oldest non-protected final calibration chromatogram for each new
final calibration chromatogram that is created. If multiple final
calibration chromatograms are created on the same day, the last
chromatogram created is archived, unless MON2020 has been
configured to archive all final calibration chromatograms.

Note

See Managing the system to learn how to configure MON2020’s
archiving behavior.

Final Validation
chromatograms

These chromatograms are treated in the same manner as final
calibration chromatogram files.

To view one or more archived chromatograms, do the following:

Procedure

1. From the Chromatograph menu, select Chromatogram Viewer.

2. Click GC Archive.
The Select archive file(s) window appears. The files can be sorted by date, file name,
analysis type, time, or stream number by clicking the appropriate column header.
By default, they are sorted by date, with the newest file listed first.

Note

By default, only recent chromatograms—that is, the last five runs for each stream—
are displayed. To view all archived chromatograms, click All. To return to viewing
only recent chromatograms, click Recent.

3. Select one or more archive files by clicking them.
Use the SHIFT and CTRL keys to make multiple selections.

Note

To save the selected files to the PC without displaying them first, select the

Download and save selected chromatograms checkbox and click Download &
Save.

4. Click Download & Show.
The Select window displays for each chromatogram that contains data from more
than one detector.

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Figure 2-4: The Select window

5. For each chromatogram, double-click Detector 1, Detector 2, or Both from the
Select window.
MON2020 plots the archived chromatogram(s) and the corresponding data displays
in the timed event and component data tables.

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2.1.4 Protected chromatograms

By default, archived chromatograms are not saved indefinitely. Once the GC’s storage
capacity for archived chromatograms has been reached, the oldest archived
chromatograms are deleted to make room for the newest archived chromatograms.

If you have a chromatogram that you would like to preserve, it is possible to protect it.
Protected chromatograms will not be deleted to accommodate newer chromatograms.
MON2020 saves up to 100 protected chromatograms.

Note

Protected chromatograms have a lock icon ( ) displayed beside them.

Note

To protect an archived chromatogram you must be logged in as a supervisor or
administrator.

To protect a chromatogram, do the following:

Procedure

1. Click GC Archive.
The Select Archive File(s) window appears. The chromatograms can be sorted by
date, file name, analysis type, time, or stream number by clicking the appropriate
column header. By default, they are sorted by date, with the newest chromatogram
listed first.

Note

By default, only recent chromatograms—that is, the last five runs for each stream—
are displayed. To view all archived chromatograms, click All. To return to viewing
only recent chromatograms, click Recent.

2. Make sure the Chromatogram tab is selected and then select the appropriate
archived chromatogram by clicking it. Use the SHIFT or CTRL key to make multiple
selections.

3. Click Protect.
The Edit Description window displays.

4. Enter any information that you would like to have associated with the
chromatogram and then click OK.

MON2020 places a lock icon (
protected status. You can also click on the Protected Chromatograms tab to view
your newly protected archived chromatogram.

) beside the selected chromatogram to verify its

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2.1.5 Display a saved chromatogram

To view a chromatogram that was saved to disk, do the following:

Procedure

1. Click PC File.
The Open dialog appears.

2. Navigate to the desired .xcgm file or .xcmp comparison file and select it.
To make multiple selections, use the SHIFT or CTRL key.

3. Click OK.
The Select window displays for each chromatogram that contains data for more
than one detector.

Figure 2-5: The Select window

4. For each chromatogram, double-click the chromatogram from the Select window.
MON2020 plots the archived chromatogram(s) and the corresponding data displays
in the timed event and component data tables.

2.2 Options for displaying chromatograms

Right-clicking on the graph brings up the following commands:

Command Name

Zoom In + (NUMPAD) Zooms in on the entire graph.

Zoom Out - (NUMPAD) Zooms out from the entire graph.

Zoom X In 6 (NUMPAD) Zooms in on the X axis.

Zoom X Out 4 (NUMPAD) Zooms out from the X axis.

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Shortcut Description

Note

Another way to zoom in is by clicking and dragging your mouse to select the
region of the graph that you want to zoom in on.

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Command Name Shortcut Description

Zoom Y In 8 (NUMPAD) Zooms in on the Y axis.

Zoom Y Out 2 (NUMPAD) Zooms out from the Y axis.

Save State

Restore State

Toggle Full Screen

Cursor to Nearest
Point

Toggle Coarse/Fine
Cursor

Toggle Lines/Dots
Displays

Toggle Mouse
Position Tip

Toggle Nearest
Position Tip

Print

Copy to clipboard

Paste from clipboard

CTRL + HOME

HOME

F11

F8

F4

F9

CTRL + F4

CTRL + F9

CTRL + P

CTRL + C

CTRL + V

Saves current or archived display settings for the selected chromatogram.

Note

The Save State function is available only when viewing a live or archived
chromatogram.

Restores the last saved display settings for the selected chromatogram.

Note

Pressing HOME returns the user to the saved state.

Toggles the display of the Chromatogram Viewer’s tables and buttons and
maximizes the chromatogram window.

Snaps the cursor to the nearest point on the chromatograph in both the X and Y
directions.

Toggles the cursor from coarse and less accurate to fine and more accurate.

Toggles the chromatographs from lines to dots, or dots to lines.

The graph’s cursor follows the movement of the mouse while a hovering tooltip
displays the exact coordinates of the current point.

The graph’s cursor follows the movement of the mouse cursor.

Prints the chromatogram.

Copies from the graph the raw detector data that was used to plot the selected
chromatogram. This data can be pasted into another application such as Microsoft
Word or Microsoft Excel.

Plots a range of points copied from another application such as Microsoft Word or
Microsoft Excel.

2.3 Configure the appearance of the chromatogram

MON2020 allows you to change the appearance of many of the chromatogram’s
elements, such as its X-axis and Y-axis values, the color of the chromatogram’s
background, and the display status of its labels.

2.3.1

32 Rosemount Gas Chromatographs

The Graph bar

Use the Graph bar buttons to change the display parameters of the chromatogram.

Click Edit from the Graph bar. The Edit Scales window displays.

The following table lists the parameters that can be edited:

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Command Description Default value

X Min Sets the minimum value, in seconds, for the X-axis. 0

X Max Sets the maximum value, in seconds, for the X-axis. This

value is determined by the Timed Events table.

Y Min Sets the minimum value for the Y-axis. -10

Y Max Sets the maximum value for the Y-axis. 100

Print Speed Sets the number of inches per second for the X-axis while

printing a chromatogram, similar to an XY plotter.

X Intervals Sets the number of intervals to be displayed on the graph

for the X-axis.

Y Intervals Sets the number of intervals to be displayed on the graph

for the Y-axis.

Display Option Determines whether the chromatograph is displayed as a

solid line or as a dotted line.

Show labels Toggles the display of the graph labels. Checked

Scroll newest X Determines whether the graph’s window moves to focus

on the most recent data point along the X-axis. This

feature only applies to live chromatograms.

100

0

10

11

Lines

Unchecked

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Figure 2-6: A chromatogram

To see how your changes affect the graph, click Apply. To accept your changes, click OK.

• Click Cursor to toggle the cursor size from coarse movement (less accurate) to fine

movement (more accurate).

• Click Print to print the chromatogram window.

2.3.2

34 Rosemount Gas Chromatographs

Additional plot commands

In addition to the Graph bar, there are a few other commands available that allow you to
manipulate the look and feel of the graph. To access the additional plot commands menu,
right-click the Chromatogram Viewer anywhere except on the graph or the timed event and
component data tables. The additional commands are:

Set Plot Area
Color

Auto Resize
Series

Changes the color of the graph’s background. This may be necessary to
make the chromatograms more visible. The default RGB color values are
236, 233, and 216.

Scales down the X-axis and the Y-axis to fit the entire chromatogram onto
the window.

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Show Mini
Plot

Rearrange
Series

Trace Offset
Settings

Toggles the display of a smaller version of the chromatogram in a
separate, smaller, and resizable window. This allows you to keep an
overview of the entire graph at all times, especially when zoomed in.

This window automatically displays whenever you zoom in on the original
chromatogram.

Resizes and offsets two or more traces so that they can both be fully
displayed on the graph. To offset a trace means to raise its Y-axis relative
to the Y-axis of the previous trace so that one trace is not drawn over the
other but instead one trace is drawn above the other.

Indicates the amount of offset between two or more traces. To offset a
trace means to raise its Y-axis relative to the Y-axis of the previous trace so
that one trace is not drawn over the other but instead one trace is drawn
above the other.

If two detectors are in use, each set of traces can be offset independently

-- that is, the traces for one detector can be offset relative to each other,
but independent of the traces from the second detector.

2.4 Change how a chromatogram displays

Figure 2-7: The Chromatogram bar

The Chromatogram bar contains a row of buttons that allows you to manipulate a single
chromatogram. Below the row of buttons is the Chromatogram bar's dropdown list,
which contains a list of all of the currently displayed chromatograms/traces. Before you
can work with a chromatogram you must first select it from the dropdown list.

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2.4.1 Edit a chromatogram

You can use the Edit function to change the X and Y offset values for a trace, as well as its
color. These changes may be necessary to make the trace more distinguishable from those
that surround it or to align a trace with a different trace for comparison.

To edit a trace, do the following:

Procedure

1. Select the trace that you want to edit from the Chromatogram pull-down menu.

2. Click Edit.
The Edit Chromatogram dialog appears.

X Offset Enter a positive number to move the trace to the right, or a negative

number to move the trace to the left.

Y Offset Enter a positive number to move the trace up, or a negative number to

move the trace down.

# points Number of data points in the trace. This field is read-only.

2.4.2

Color Assigns a color to the trace.

3. To see how your changes affect the trace, click Apply. To accept your changes, click
OK.

Display chromatogram results

To display a table of calculation results for a chromatogram, do the following:

Procedure

1. From the Chromatogram bar's dropdown list, select the appropriate trace.

2. Click Results.
A window appears displaying the calculation results for the selected trace.

• Click Save to save these results in one of the following formats: tab-delimited (.txt),

comma-delimited (.csv), Microsoft Excel (.xls), HTM (.htm), or XML (.xml).

• Click Clipboard to copy the data to the Windows® clipboard, where it can be pasted

into another document.

• Click Print to print a tab-delimited version of the results.

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2.4.3 Save a chromatogram

To save a chromatogram, do the following:

Procedure

1. From the Chromatogram bar's dropdown list, select the trace that you want to

save.

2. Click Save.

The Save As window displays.

For convenience the file is given an auto-generated file name that includes the
trace’s creation date and time; however, you can give the file any name that you
choose.

3. Click Save.

2.4.4

Remove a chromatogram from the Chromatogram Viewer

To remove a live trace from the chromatogram window, do one of the following:

• If you want to remove all live traces, click the View current CGM checkbox to uncheck

it.

• If you want to remove a single live trace, click the appropriate detector checkbox

beside the View current CGM checkbox.

To remove a saved or an archived chromatogram from the chromatogram window and to
close the file, do the following:

Procedure

1. From the Chromatogram bar'sdropdown list, select the trace that you want to

remove.

2. Click Remove.

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2.4.5 Initiate a forced calibration

The Forced Cal command uses an archived chromatogram’s raw data to calibrate the GC.
The calculation results are stored in the component data table for the corresponding
stream.

A major benefit of a forced calibration is increased efficiency. Using a previously validated
chromatogram removes the necessity for the GC to perform a calibration and a validation
before performing an analysis.

To perform a forced calibration, do the following:

Procedure

1. From the Chromatogram bar's dropdown list, select the trace that you want to use

to calibrate the GC.

2. Click Forced Cal.

2.4.6

Chromatogram Viewer tables

MON2020 can display two levels of information in the Chromatogram Viewer's timed
events and component data tables:

• All timed events and all components for all open chromatograms.

• Timed events and components for the currently selected chromatogram.

By default, the two tables show only the timed events and components for the currently
selected chromatogram.

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Figure 2-8: Timed events and component data tables showing data for a currently
selected trace

Figure 2-9: Timed events and component data tables showing data for all open traces

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Note

The brackets ([ ]) on the Cur/All button indicate which mode is being displayed in the
tables.

Procedure

1. To view the data for a different chromatogram, select the trace from the

Chromatogram bar's dropdown list.

2. To view all timed events and all components for all open chromatograms, click Cur/

All.

3. To toggle back to viewing only the timed events and components for the currently

selected chromatogram, click Cur/All again.

2.4.7

Open a comparison file

A comparison file contains two or more chromatograms and their associated data. To
open a comparison file, do the following:

Procedure

1. Click PC File. The Open dialog displays.

2. Select XA CMP Files (*.xcmp) from the Files of type dropdown list.

3. Navigate to the folder that contains the comparison file that you want to open and

select the file.

4. Click Open.

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2.4.8 Save a comparison file

A comparison file allows you to save your current view, including all open chromatograms,
for later review and reuse. To save a comparison file, do the following:

Procedure

1. Click Save Cmp.

The Save As dialog appears.

2. Navigate to the folder in which you want to save the file.

Note

For convenience the file is given an auto-generated file name that includes the
current date and time; however, you can give the file any name that you choose.

3. Click Save.

2.5 Miscellaneous commands

The series of checkboxes to the right of the graph have the following functions:

Figure 2-10: Miscellaneous options

Keep last CGM

Print at end of
run

Save at end of
run

Show bunched
data

When viewing a live chromatogram, upon starting a new run,
MON2020 keeps the most recently completed chromatogram on the
graph for comparative purposes.

Prints the chromatogram to the PC's default printer at the end of the
run and is unchecked by default.

Saves the chromatogram to the GC's Data folder at the end of the run
and is unchecked by default.

If this box is unchecked, then all of the raw data points are plotted to
the chromatogram window; if this box is checked, which is the default
option, then each point plotted on the graph represents the average
of a group of raw data values. The size of the data group is determined
by the peak width value listed in the Timed Events table.

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2.5.1 The Chromatogram Viewer's Timed Events table

The Chromatogram Viewer displays a compact version of the Timed Events table, located
on the upper right side of the window. The events displayed in the table are sorted by
time. See The timed events tables for more information.

The Timed Event table displays the following data for each event:

Event Type

Vlv/Det

Value

Time (s)

Timed events from live or archived chromatograms can be edited from the
Chromatogram Viewer by double-clicking on the Timed Events table. The changes will
affect the next analysis run. The following commands are available by right-clicking on the
table:

Auto Scroll

Save Sheet

Copy to
Clipboard

Print Sheet

The type of timed event. These events are mapped to the Time Events
window and include Valve, Integration, and Gain events.

Identifies which valve or detector is involved in the event.

Setting of the event; for example, a valve was turned ON, or the gain was set
to 4.

The number of seconds into the cycle that the event occurred or will occur.

When checked, if a live trace has been selected from the
Chromatogram bar's pull-down menu, the Timed Event table will keep
its focus on the event closest in time by highlighting that event in dark
blue.

Allows you to save the table to the PC in one of the following formats:
TXT, CSV, XLS, HTM, or XML.

Allows you to copy the table to the clipboard.
This data can be pasted into another application such as Microsoft

Word or Microsoft Excel.

Allows you to print the table to your default printer.

2.5.2 Launch the Timed Events table from the Chromatogram Viewer

To launch the Timed Events dialog directly, right-click on the Chromatogram Viewer’s Timed
Events table and select Edit Timed Events Table. The Timed Events dialog displays. See The

timed events tables for more information.

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2.5.3 Edit timed events from the Chromatogram Viewer

To edit timed events from the Chromatogram Viewer, do the following:

Procedure

1. From the Chromatogram bar's dropdown list, select the chromatogram whose
timed events you want to edit.

2. Right-click the Timed Events table and select Edit or double click the Timed

Events table.

The cells that can be edited turn white.

3. Edit the appropriate event.

4. Right-click on the Timed Events table and select Save Changes.
The data are saved, and the table's cells turn blue, indicating that they are read­only. The changes will affect the next analysis run.

Note

To return to the Timed Events table without saving your changes, select Discard
Changes.

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2.5.4 Use the Chromatogram Viewer’s cursor to update a Timed Event

Figure 2-11: Chromatogram cursor

The Chromatogram Viewer's cursor (A) can be dragged to any point on the graph, or it can
be relocated by double-clicking within the boundaries of the graph.

As the cursor moves across the chromatogram, the Timed Events table automatically
scrolls to the event that corresponds to the cursor’s coordinates. The cursor’s coordinates
(B) display in the upper left corner of the graph.

The cursor can be useful if you want to change a timed event based on the data displayed
by the chromatogram.

To update a timed event based on the location of the Chromatogram Viewer’s cursor, do
the following:

Procedure

1. Select the live or archived trace that you want to use as the source for changing the
timed event.

2. Drag the cursor to the desired location.
You can track the cursor's location by watching the coordinates that display in the

upper left corner (B). The X-coordinate represents the analysis time in seconds.
When you see the desired time displayed, stop dragging the cursor.

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Note

To toggle the cursor’s size between coarse movement (less accurate) and fine
movement (more accurate), click the Cursor button on the Graph bar.

3. Go to the Time Events table and right-click on the appropriate event.

4. Select Update Time from Cursor.
The event’s time will be changed to match the cursor’s time (X-coordinate).

5. To save your changes, right-click the Timed Events table and select Save Changes.
The changes will affect the next analysis run.

Note

To return to the Timed Events table without saving your changes, select Discard
Changes.

2.5.5

The Chromatogram Viewer's Component Data table

The Chromatogram Viewer displays a compact version of the Component Data table
beneath the Timed Events table. See The component data tables for more information.

The Component Data table displays the following data for each component:

Component

Det

Time (s)

Retention times for components from live or archived chromatograms can be edited from
the Chromatogram Viewer by double-clicking on the Component Data table. The changes
will affect the next analysis run. The following commands are available by right-clicking on
the table:

Auto Scroll

Save Sheet

Copy to
Clipboard

The name of the component.

Identifies the detector associated with the component.

The retention time for the component.

When checked, if a live trace has been selected from the
Chromatogram bar's dropdown list, the Component Data table keeps
its focus on the component closest in time by highlighting it in dark
blue.

Allows you to save the table to the PC in one of the following
formats: .txt, .csv, .xls, .htm, or .xml.

Allows you to copy the table to the clipboard . This data can be pasted
into another application such as Microsoft Word or Microsoft Excel.

Print Sheet

Allows you to print the table.

2.5.6 Edit retention times from the Chromatogram Viewer

To edit the retention time for a component, do the following:

Procedure

1. Double-click the Component Data table or right-click the table and select Edit
Retention Times.

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The Ret Time column turns white, indicating that its cells are editable.

2. Click the appropriate cell for the component that you want edit, and enter a new
retention time, in seconds. The value must be less than the analysis time.

3. To save your changes, right-click on the table and select Save Changes.
The changes affect the next analysis run.

Note

To return to the Component Data table without saving your changes, select
Discard Changes.

2.5.7 Display raw data from the Chromatogram Viewer

Use the Raw Data button to display the Raw Data table for the selected trace.

Procedure

1. Use the Chromatogram bar's pull-down menu to select a specific trace.

Note

Even though you are selecting a trace, the data that is displayed will be for the
chromatogram, which may include more than one trace.

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2. Click Raw Data.
The Raw Data window displays and shows the raw data for the selected
chromatogram. The following data displays for each peak from the trace:

No. Numerical identifier for the peak, listed by the order of

discovery.

Ret Time Time, in seconds, that the component eluted.

Peak Area The area under the peak.

Peak Height The maximum height of the peak.

Det The detector associated with the peak.

Method Method of peak end detection. Options are:

• 1 (Baseline)

• 2 (Fused Peak)

• 3 (Last Fused Peak)

• 4 (Tangent Skim)

• 100 (Inhibit)

• 300 (Forced Integration)

• 500 (Summation)

Baseline Start The raw detector counts at the start of an integration.

Baseline End The raw detector counts at the end of an integration.

Integ. Start Time, in seconds, when integration started.

Integ. Stop Time, in seconds, when integration stopped.

Peak Width Half
Height

Partial Peak If Yes, then the Partial Peak value is used in the summation

The width of the peak taken at half of the peak’s height.

calculation; if No, then the Partial Peak value is not used in the
summation calculation.

2.6 Set the gas chromatograph’s date and time

When MON2020 connects to a gas chromatograph, the Status bar displays the gas
chromatograph’s date and time.

Note

The date and time displayed for the GC may be different from your date and time,
depending on the physical location of the GC.

To set the gas chromatograph’s date and time, do the following:

Procedure

1. Select View/Set Date Time... from the Chromatograph menu.

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The View/Set Date Time window displays.

2. Use the drop-down menus to set the date and time.
To enable or adjust daylight savings, see Set Daylight Savings.

3. Click OK.

2.6.1 Set Daylight Savings

Daylight Savings Time is the practice of temporarily advancing clocks so that afternoons
have more daylight and mornings have less. Typically clocks are adjusted forward one hour
near the start of spring and are adjusted backward in autumn. Since the use of Daylight
Savings Time is not universal, you have the option of enabling or disabling it in MON2020.

To configure MON2020 to use Daylight Savings Time, do the following:

Procedure

1. Select View/Set Date Time... from the Chromatograph menu.
The View/Set Date Time window displays.

Note

Make sure the GC is set to the current date and time before enabling the Daylight
Savings feature.

2. Click the Enable Daylight Savings checkbox.
The Daylight Savings section will be enabled, giving you the following two options
for setting the start and end times for Daylight Savings:

•

Week format. You can specify on which week day, of what week, and of what
month Daylight Savings Time to start and end.

• Month/Day format. You can specify the exact day of the month and the month

number for which you want Daylight Savings Time to start and end.

Note

These formats can be used interchangeably; for example, the Week format can be
used to specify the start date, and the Month/Day format can be used to specify the
end date.

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Figure 2-12: The Daylight Savings options

A. Week format
B. Start time
C. Month/day time

D. End time

E. Advance time
F. Set back time

3. Set the start date for Daylight Savings Time.

4. Set the start time and the advance time.

5. Set the end date for Daylight Savings Time.

6. Set the end time and the setback time.

7. Click OK to implement your changes and close the View/Set Date Time window.

Note

To implement your changes without closing the View/Set Date Time window, click
Save.

Note

Daylight Savings Time should be configured each time the feature is enabled;
thereafter, each year MON2020 will automatically compute the start and end times
based on the initial configuration.

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3 Hardware

Many of a gas chromatograph’s hardware components—such as its heaters, valves, and
discrete outputs—can be easily managed through MON2020 by clicking Hardware on the
menu bar.

This chapter shows you how to view and administer each of a gas chromatograph’s major
hardware components.

This chapter also shows you how to view an inventory of all of a gas chromatograph’s
installed hardware components.

3.1 Heater configuration

MON2020 allows you to do the following from the Heaters window:

• Name each heater.

• Monitor the heaters' performance.

3.1.1

• Set a target temperature.

Set the temperature of the gas chromatograph’s heaters

You can set a heater’s desired temperature or fix its power output by selecting Heaters…
from the Hardware menu. Use the Switch drop-down menuv to select each heater to set
to one of the following modes:

Auto

Fixed On

Not Used

Allows you to set the desired temperature for the heater.

Allows you to set the power output for the heater without regard to
temperature.

Removes the heater from service.

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3.1.2 Rename a heater

To assign an identifying label to a heater, do the following:

Procedure

1. Select Heaters… from the Hardware menu.
The Heaters window displays.

2. Double-click on the appropriate row under the Label column for the heater that you
want to name.

3. Type in a descriptive name for the heater. This name must be unique; two heaters
cannot share the same label.

4. Click OK.

3.1.3

3.1.4

3.1.5

Set a heater’s voltage type

To set a heater’s voltage type, do the following:

Procedure

1. Select Heaters… from the Hardware menu.

2. Click on the appropriate Heater Type cell and select AC or DC from the drop-down
list.

3. Click OK to save the changes and close the window.

Note

To save the changes without closing the window, click Save.

Monitor the temperature of a heater

To check a heater’s temperature, select Heaters… from the Hardware menu.

The current temperature of each heater displays under the Temperature column, and
updates in real time. The percentage of the GC’s power output that is being used by each
heater displays under the Current PWM column.

Monitor the operational status of a heater

To check a heater’s status, select Heaters… from the Hardware menu.

The status of each heater displays under the Status column. There are four possible
statuses, and their meanings are as follows:

OK

Not Installed

Out of Control

Error

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The heater’s control card is installed and is working correctly.

The heater’s control card is not installed.

The heater is running and is in the process of reaching its temperature
set point.

The GC cannot communicate with the heater.

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3.1.6 Set the desired temperature

To set the desired temperature for a heater, do the following:

Procedure

1. Select Heaters… from the Hardware menu.
The Heaters window displays.

2. For each heater that you want to set, select Hadware → Heaters → Auto from the
pull-down menu from the appropriate row under the Switch column.

3. For each heater that you want to set, double-click on the appropriate row under the
Setpoint column, and enter the desired temperature, in degrees Celsius. You can
enter a value between 20and 500.

Note

Heaters 1 and 2 should never exceed 302 °F (150 °C).

4. To exclude a heater from the warm start process, select its Ignore Warm Start
check box.

Note

A warm start occurs when the GC restarts after having been shut down during an
auto sequence analysis run. The GC activates the Heaters and waits until they reach
their setpoints and the temperature stabilizes; the GC then resumes the auto
sequence run.

5. The appropriate rows under the PID Gain, PID Integral, and PID Derivative columns
can also be edited by double-clicking and entering a new value. The value ranges for
each column is as follows:

PID Gain

PID Integral 0 - 500

PID Derivative 0 - 50,000

Note

You should not deviate from the default settings for these variables, which were
determined by experienced personnel.

6. Click OK to save the changes and close the window.

Note

To save the changes and leave the window open so that you can monitor the
heaters’ statuses, click Save. The current temperature of each heater displays in the
Temperature column and is updated in real time.

0 - 500

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3.1.7 Set PWM output

Note

Pulse-width modulation (PWM) is a technique for providing intermediate amounts of
electrical power between fully on and fully off.

A heater needs voltage to operate. The amount of voltage that is delivered to a heater can
be controlled manually when the heater is set to Fixed On mode. Setting a heater to Fixed
On mode can be useful when troubleshooting heater issues.

CAUTION

Fixed On mode is not recommended for general GC operations. Switching a heater to Fixed
On mode removes its ability to maintain a constant temperature because the power

delivered to the heater will not fluctuate based on the temperature setpoint, but will
instead remain at the level set by you.

To set a heater’s PWM Output, do the following:

Procedure

3.1.8

1. Select Heaters… from the Hardware menu.
The Heaters window displays.

2. For each heater that you want to set, select Fixed On from the appropriate row
under the Switch column.

3. For each heater that you want to set, double-click on the appropriate row under the
Fixed PWM Output column, and enter the desired percentage of output. You can
enter a decimal value between 0 and 100.

4. Click OK to save the changes and close the window, .

Note

To save the changes and leave the window open so that you can monitor the
heaters’ status, click Save. The current temperature of each heater displays in the
Temperature column and is updated in real time.

Take a heater out of service

To remove a heater from service, do the following:

Procedure

1. Select Heaters… from the Hardware menu.
The Heaters window displays.

2. For each heater that you want to set, select Not Used from the appropriate row
under the Switch column.
The row turns turquoise, indicating that it is no longer in service.

3. To save the changes and close the window, click OK.

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Note

To save the changes without closing the window, click Save.

3.2 Valve configuration

MON2020 allows you to do the following from the Valves window:

• Assign identifying labels to each valve.

• Monitor valve operation.

• Control the operation modes for each valve.

3.2.1 Rename a valve

Give each valve a descriptive label to avoid confusing one valve for another. To assign an
identifying label, do the following:

Procedure

1. Select Valves… from the Hardware menu.
The Valves window displays.

2. Double-click on the appropriate row under the Label column for the valve that you
want to name.

Note

The valves are labeled Valve 1 - Valve N by default, where N equals the total
number of valves available to the GC.

3. Type in a new descriptive name for the valve.

4. Click OK.

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3.2.2 Set a valve’s operational mode

A valve has three operational modes: Auto, On, and Off.

• Setting the valve to Off means that the valve turns off and remains off until the

operational mode is changed.

• Setting the valve to Auto means that the valve turns on and off according to the Timed

Events table.

• Setting the valve to On means that the valve turns on and remains on until the

operational mode is changed.

Note

The GC’s switch panel overrides MON2020’s valve settings.

To set a valve’s operational mode, do the following:

Procedure

1. Select Valves… from the Hardware menu.

The Valves window displays.

2. Select the desired mode from the drop-down menu under the Switch column for

the valve.

3. Click OK to save the changes and close the window.

Note

To save the changes and leave the window open so that you can monitor the valve’s
progress, click Save. The current state of the valve displays in the State column, and
is updated in real time.

3.2.3

Monitor the operational status of a valve

To check a valve’s status, select Valves… from the Hardware menu.

The status of each valve displays under the Status column. There are five possible status
readings, and their meanings are as follows:

OK

Not Installed

Under/Over
Current Error

Error

The valve is installed and is working correctly.

The valve is not installed.

Unable to switch the solenoid on or off. There is a potential
problem with the solenoid.

The Heater/Solenoid board is installed but the GC cannot
communicate with it.

3.2.4 Invert the polarity of a valve

The Invert Polarity option reverses the effect of switching a valve on or off. By default, the
Invert Polarity option is unchecked. This means that switching the valve to ON activates it,

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and switching the valve to OFF deactivates it. Checking the Invert Polarity box means that
switching a valve to ON deactivates it, and switching the valve to OFF activates it.

To set the polarity of a valve, do the following:

Procedure

1. Select Valves… from the Hardware menu.

The Valves window displays.

2. If the Invert Polarity checkbox is selected, switching a valve to ON deactivates it,

and switching a valve to OFF activates it. Deselect the checkbox if you want
switching the valve ON to activate it and switching the valve OFF to deactivate it.

Hardware

3.2.5 Set the usage mode for a valve

A valve’s usage mode determines its general function, or role, during an analysis run. A
valve can be assigned one of the following usage modes:

• Unused

• FID H2 Valve (700XA and 1500XA only)

• Stream

• Analyzer01 ... Analyzer016

The usage mode is set at the factory and under ordinary circumstances it should not be
changed.

To set the usage mode for a valve, do the following:

Procedure

1. Select Valves… from the Hardware menu.

The Valves window displays.

2. Select the desired mode from the dropdown list under the Usage column for the

valve.

3. Click OK to save the changes and close the window.

Note

To save the changes and leave the window open so that you can monitor the valve’s
progress, click Save. The current state of the valve displays in the State column, and
is updated in real time.

3.3 Managing the gas chromatograph's pressure

MON2020 allows you to do the following from the Hardware → EPC menu (for
Rosemount 370XA GCs only):

• Change the carrier pressure set point

• Monitor the EPC's status

• Switch EPC modes

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3.3.1 Change the carrier pressure set point

Note

This feature only works with the Rosemount 370XA GCs only.

Procedure

1. Select Hardware → EPC menu.

The EPC window opens.

2. Double-click the Set Point field and enter the desired value.

Note

If the field does not become active after double-clicking it, make sure the Switch
field is set to Auto.

3. Click OK.

The new set point will be accepted and the EPC window will close.

3.3.2

Check the status of the EPC

Note

This feature only works with Rosemount 370XA GCs.

Select Hardware → EPC menu. The EPC window opens.

Check the Status column to learn the current state of the EPC:

State

OK EPC is working normally and controlling the pressure to the set point.

Pressure Low The carrier pressure is too low.

Out of range The EPC is not able to control the pressure to the desired set point.

Description

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3.3.3 Switch to a different EPC mode

Note

This feature only works with the 370XA.

Procedure

1. Select EPC on the Hardware menu.

The EPC window opens.

2. Click the Switch field.

A dropdown list opens.

3. Select the appropriate mode.

Option Description

Auto Let's the GC control and maintain its pressure at the desired set point.

Fixed On Allows you to control the power output for the EPC valve by entering a

value, in the Fixed PWM Output field.

Not Used Shuts off the EPC.

4. Click OK.

The EPC switches modes and the EPC window closes.

3.4 Detectors

Use the Detectors window to monitor the activity and status of the GC’s detectors.

To view the Detectors window, select Detectors… from the Hardware menu.

Note

Before making any modifications to this window, halt the analysis. See Halt an analysis for
more information.

Note

Blue cells display read-only data; white cells display editable data.

The following data displays for each detector:

Det #

Detector

Numerical identifier for the detector to which the following
data applies.

Options, which depend on your GC’s configuration, are TCD,
FPD FPD G2 (integral FPD), FID or FID G2 (integral FID).

Flame Temp RTD

H2 Valve

Flame Ignition

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Select the appropriate RTD from the drop-down list. The RTD
measures the temperature of the FID flame.

Optional carrier shut-off valve

Select Manual if you want to control the ignition of the FID;
select Auto if you want the GC to control the ignition of the FID.

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Ignition Attempts

Wait Time Bet Tries

Igniter On Duration

Flame On Sense Temp

Flame Out Sense Temp

FPD Flame Status DI

Preamp Val

Flame Temperature

Flame Status

Indicates the number of times the GC will try to light the flame.
If an Auto FID ignition sequence fails to light the flame after the
specified number of attempts, the GC will close the hydrogen
valve, switch the ignition parameter to Manual, and set an
active alarm.

Indicates the amount of time, in seconds, the GC will wait
between ignition attempts.

Indicates the length of time that the igniter will remain on.

The flame ignites when the butner internal temperature
exceeds the value set in this field.

The flame is extinguished when the burner internal
temperature falls below the value set in Flame On Sense Temp.

Allows you to select from a list of available digital inputs. The
digital input that is selected will receive the FPD’s flame status
value.

Detector count. Read-only. See Auto-zero (Auto-Zero) for more
information.

Temperature of the burner flame as read by the RTD. Read­only.

Options are: Off, On, and Over Temperature. Read-only.

H2 Valve Cur State

Scaling Factor

Igniter Status

Electrometer Voltage

Pre Amplifier Voltage

Polarizing Voltage

Gain Status

Status

3.4.1 Gain High

The FID/FPD gain status displays on the Hardware → Detectors, which can be either Low
or High.

Procedure

1. If the gain status is Low and you want to set it to High, click Gain High button.

2. If the gain status is High and you want to change it to Low, click Gain Low.

Related information

Detectors

Options are: Open and Closed. Read-only.

Preamp calibration factor.

Options are: Off and On. Read-only.

Output at first stage of FID/FPD preamp. Read-only.

Output at second stage of FID/FPD preamp. Read-only.

Igniter voltage. Read-only.

Options are: Low and High.

Options are: OK, Not Installed, and Internal Error. Read-only.

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3.4.2 Ignite the burner flame

If the Flame Ignition field on the Detectors window is set to Manual, and if the Flame
Status field is set to Off, do the following to restart the flame:

Procedure

1. Click Open H2 Valve.

The H2 Valve Cur State field changes to Open.

2. Click Ignite.

The Flame Status field changes to On when the internal flame temperature exceeds
the value set in the Flame On Sense Temp field.

Note

If the Flame Ignition field is set to Auto, the GC will automatically restart the flame
if it goes out.

Related information

Detectors

3.4.3

3.4.4

Open H2 Valve

To manually ignite the FID/FPD, the H2 valve must open.

Procedure

1. Click Hardware → Detectors and set the Flame Ignition field is set to Manual

2. Select the Open H2 Valve button.

3. The H2 Valve Cur State field changes to Open.

Related information

Detectors

Null Electrometer

The FID/FPD Detector's NULL Electrometer feature is used to reset the electromer.

Procedure

1. Click Hardware → Detectors.

2. Click the NULL Electrometer button to reset the FID/FPD electrometer.

Related information

Detectors

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3.4.5 Offset the baseline (700XA and1500XA only)

Note

In GC Firmware version 2.1.X and later, the bridge is automatically balanced by the
firmware.

In some situations that involve TCD detectors the baseline may be displayed either too
high on the graph, in which case the tops of the peaks are cut off, or too low on the graph,
so that the bases of the peaks are cut off. If this occurs it is possible to offset the baseline
either up or down so that the entire peak can be displayed on the graph. This offset will be
applied to all traces—live, archived and saved—that are displayed thereafter.

To offset the baseline, do the following:

Procedure

1. Select Detectors… from the Hardware menu.

The Detectors window displays.

2. Select the appropriate detector. It may be necessary to return to the Chromatogram

Viewer to learn which detector is the source of the trace that needs to be offset.

3. Balance the preamp:

• To lower the baseline, click Lower Baseline (N). Each time this button is clicked,

N is incremented by -1. For example, if this is the first time the button has been
clicked, Lower Baseline(0) is incremented to Lower Baseline(-1), and the
baseline is lowered one step. If Raise Baseline(N) was clicked previously, then
that button is incremented by -1 first, until it reaches RaiseBaseline(0); at that
point, Lower Baseline(N) is incremented by -1.

Note

To reset the baseline to its original setting, click Raise Baseline(N) and Lower
Baseline(N) until they read Raise Baseline(0) and Lower Baseline(0).

• To raise the baseline, click Raise Baseline(N). Each time this button is clicked, N

is incremented by 1. For example, if this is the first time the button has been
clicked, Raise Baseline(0) is incremented to Raise Baseline(1), and the baseline
is raised one step. If Lower Baseline(N) was clicked previously, then that button
is incremented by 1 first, until it reaches Lower Baseline(0); at that point, Raise
Baseline(N) is incremented by 1.

Note

To reset the baseline to its original setting, click Right(N) and Left(N) until they
read Raise Baseline(0) and Lower Baseline(0).

4. After the baseline has been raised or lowered to your satisfaction, click OK.

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Hardware

3.4.6 Auto-zero

To automatically adjust the baseline, click Auto-Zero. This only applies to FID or FPD
detectors.

Related information

Detectors

3.4.7 Setting the Detector Gain

The Detector window displays the detector's gain status, which can be either Low or High.

Procedure

1. If the detector's gain status is Low and you want to set it to High, click Gain High.

2. If the detector's gain status is High and you want to change it to Low, click Gain
Low.

3.4.8

Resetting the Electrometer

To reset the detector's electrometer, do the following.

Procedure

1. From the Hardware → Detector menu, click NULL Electrometer..

2. Click OK to apply your edits.

3.5 Discrete inputs

You can use MON2020 to assign labels to the GC’s discrete inputs and to control the
discrete inputs’ operational modes. The number of discrete inputs available depends on
the GC.

3.5.1

Rename a discrete input

Give each discrete input a descriptive label to avoid confusing one unit for another. To
assign an identifying label, do the following:

Procedure

1. Select Discrete Inputs… from the Hardware menu.
The Discrete Inputs window displays.

2. Double-click on the appropriate row under the Label column for the discrete input
that you want to rename.

Note

The discrete inputs are labeled Discrete Input 1 - Discrete Input N by default,
where N equals the total number of discrete inputs available to the GC.

3. Type in a new descriptive name for the discrete input.

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4. Click OK.

Note

Several of the discrete inputs on the 700XA/1500XA GCs are pre-defined and
mapped by default to System Alarms. Renaming these discrete inputs does not
remove the underlying system alarm. You will need to disable the associated
system alarm before renaming the discrete input. View System Alarms describes
how to edit system alarms.

On the 700XA, the following discrete inputs are mapped to System Alarms by
default.

Discrete Input DI Description System Alarm Name

1 Sample Flow Switch 1 No Sample Flow 1

2 Sample Flow Switch 2 No Sample Flow 2

6 Pressure Switch 1 Low Carrier Pressure 1

7 Pressure Switch 2 Low Carrier Pressure 2

On the 1500XA, the following discrete inputs are mapped to System Alarms by
default.

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Discrete Input DI Description System Alarm Name

1 Sample Flow Switch 1 No Sample Flow 1

2 Sample Flow Switch 2 No Sample Flow 2

3 Loss Of Purge Loss Of Purge

6 Pressure Switch 1 Low Carrier Pressure 1

7 Pressure Switch 2 Low Carrier Pressure 2

3.5.2 Set a discrete input’s operational mode

A discrete input has three operational modes: Auto, On, and Off.

• Setting the discrete input to Off means that it will interpret all incoming signals as OFF,

despite the true nature of the signal.

• Setting the discrete input to Auto means that it will analyze the incoming signal to

determine whether it is ON or OFF.

• Setting the discrete input to On means that it will interpret all incoming signals as ON,

despite the true nature of the signal.

To set a discrete input’s operational mode, do the following:

Procedure

1. Select Discrete Input… from the Hardware menu.

The Discrete Input window displays.

2. Select the desired mode from the drop-down list under the Switch column for the

discrete input.

3. To save the changes and leave the window open so that you can monitor the

discrete input’s progress, click Save. The current state of the discrete input displays
in the State column, and is updated in real time.

4. To save the changes and close the window, click OK.

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3.5.3 Monitor the operational status of a discrete input

Procedure

To check a valve’s status, select Discrete Input… from the Hardware menu.
The status of each discrete input displays under the Status column. There are three
possible status readings, and their meanings are as follows:

OK

Not Installed

Error

The discrete input is installed and is working correctly.

The discrete input is not installed.

The Heater/Solenoid board is installed but the GC cannot communicate
with it.

3.5.4 Invert the polarity of a discrete input

The Invert Polarity option reverses the way a voltage signal is interpreted by the discrete
input. By default, the Invert Polarity option is set to Normally Open, which means that a
high voltage signal is interpreted by the discrete input as ON, and a low voltage signal is
interpreted by the discrete input as OFF. Setting Invert Polarity to Normally Closed
means that a high voltage signal is interpreted by the discrete input as OFF, and a low
voltage signal is interpreted by the discrete input as ON.

To set the polarity of a discrete input, do the following:

Procedure

1. Select Discrete Input… from the Hardware menu.

The Discrete Inputs window displays.

2. Select Normally Open or Normally Closed from the drop-down menu under the

Invert Polarity column.

3.6 Discrete outputs

You can use MON2020 to assign labels to the GC’s discrete outputs and to control the
discrete outputs’ operational modes. The number of discrete outputs available depends
on the GC.

3.6.1

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Rename a discrete output

Give each discrete output a descriptive label to avoid confusing one unit for another.

To assign an identifying label, do the following:

Procedure

1. Select Discrete Outputs… from the Hardware menu.

The Discrete Outputs window displays.

2. Double-click on the appropriate row under the Label column for the discrete output

that you want to rename.

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Note

The discrete outputs are labeled Discrete Output 1 - Discrete Output N by default,
where N equals the total number of discrete outputs available to the GC.

3. Type in a new descriptive name for the discrete output.

4. Click OK.

3.6.2 Set a discrete output’s operational mode

A discrete output has three operational modes: Auto, On, and Off.

• Setting the discrete output to Off means that the discrete output will turn off and

remain off until the operational mode is changed.

• Setting the discrete output to Auto means that the discrete output will turn on and off

according to the Timed Events table or the Discrete Outputs table.

• Setting the discrete output to On means that the discrete output will turn on and

remain on until the operational mode is changed.

3.6.3

To set a discrete output’s operational mode, do the following:

Procedure

1. Select Discrete Output… from the Hardware menu.

The Discrete Output window displays.

2. Select the desired mode from the drop-down menu under the Switch column for

the discrete output.

3. Click OK to save the changes and close the window.

Note

To save the changes and leave the window open so that you can monitor the
discrete output’s progress, click Save. The current state of the discrete output
displays in the State column, and is updated in real time.

Monitor the operational status of a discrete output

Procedure

To check a discrete output’s status, select Discrete Output… from the Hardware menu.
The status of each discrete output displays under the Status column. There are three
possible status readings, and their meanings are as follows:

OK

The discrete output is installed and is working correctly.

Not Installed

Error

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The discrete output is not installed.

The Heater/Solenoid board is installed but the GC cannot communicate
with it.

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3.6.4 Set the usage mode for a discrete output

A discrete output’s usage mode determines which signals are routed to it via the Limited
Alarm and Discrete Alarm functions. A discrete output can be assigned one of the
following usage modes:

• DO

• Common Alarm

• FID/FPD H2 valve

• Stream

• Analyzer01

…

• Analyzer016

• Calibration

• Calibration on Analysis Clock(N)

• Maintenance

• Calibration or Maintenance

• Validation

• Calibration or Validation or Maintenance

To set the usage mode for a discrete output, do the following:

Procedure

1. Select Discrete Output… from the Hardware menu.

The Discrete Output window displays.

2. Select the desired mode from the drop-down menu under the Usage column for

the discrete output.
Options are:

• Calibration on Analysis Clock 1

• Maintenance

• Calibration or Maintenance on Analysis Clock 1

• Validation on Analysis Clock 1

• Calibration or Validation or Maintenance on Analysis Clock 1

• Calibration on CC2

• Calibration or Maintenance on CC2

• Validation on CC2

• Calibration or Validation or Maintenance on CC2

• Calibration on CC3

• Calibration or Maintenance on CC3

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• Validation on CC3

• Calibration or Validation or Maintenance on CC3

• Calibration on CC4

• Calibration or Maintenance on CC4

• Validation on CC4

• Calibration or Validation or Maintenance on CC4

3. If you select DO for Usage, then you must also set the Start Time and Duration.

a) Click on the appropriate row under the Start Time column and enter the

time that the digital output should be turned on.

b) Click on the appropriate row under the Duration column and enter the

amount of time (in Hour:Minute:Second format) that the digital output
should remain on.

c) Click on the appropriate row under the Interval column and enter the

amount of time, in hours, that should pass before the digital output turns on
again.

4. Click OK to save the changes and close the window.

Note

To save the changes and leave the window open so that you can monitor the
discrete output’s progress, click Save. The current state of the discrete output
displays in the State column, and is updated in real time.

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3.6.5 Invert the polarity of a discrete output

To set the polarity of a discrete output:

Procedure

1. Select Discrete Output... from the Hardware menu.

The Discrete Outputs window displays.

2. Check or uncheck the box under the Invert Polarity column.

With Invert Polarity unchecked:

DO current value Normally open terminals Normally closed terminals

On Closed Open

Off Open Closed

With Invert Polarity checked:

DO current value Normally open terminals Normally closed terminals

On Open Closed

Off Closed Open

3.7 Manage your gas chromatograph’s analog inputs

With MON2020 you can control analog inputs in the following ways:

• Assign identifying labels.

• Assign scale ranges.

• Calibrate analog inputs for zero and full scale values.

• Code

• Analog Input 4-20 mA external loop power

Note

Electrical current signals ranging from 4 to 20 mA (±10%) are accepted as analog inputs.

3.7.1

Rename an analog input

Give each analog input a descriptive label to avoid confusing one unit for another. To
assign an identifying label, do the following:

Procedure

1. Select Analog Inputs… from the Hardware menu.
The Analog Inputs window displays.

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2. Double-click on the appropriate row under the Label column for the analog input
that you want to rename.

Note

The analog input devices are labeled Analog Input 1 and Analog Input N by default,
where N equals the total number of analog inputs available to the GC.

3. Type in a new descriptive name for the analog input.

4. Click OK.

Hardware

3.7.2 Set an analog input’s operational mode

An analog input has the following operational modes:

• Var_Standard: The analog input will be set automatically, based on the signal it

receives.

• Var_Namur_NE43: Namur_NE43 uses the 3.8 to 20.5 mA signal range for

measurement information, with ≥21 mA or ≤3.6 mA to indicate diagnostic failures.

3.7.3

• Setting the switch to Fixed means that the analog input will be set to the value that you

enter in the appropriate row under the Fixed Value column. This is the default setting.

To set an analog input’s operational mode, do the following:

Procedure

1. Select Analog Inputs… from the Hardware menu.

The Analog Input window displays.

2. Select the desired mode from the drop-down menu under the Switch column for

the analog input.

3. Click OK to save the changes and close the window.

Note

To save the changes and leave the window open so that you can monitor the analog
input, click Save. The current value of the analog input signal displays in the Current
Value column, and is updated in real time.

Set the scale values for an analog input device

To set the zero scale and full scale, which are used when converting the analog input value,
do the following:

Procedure

1. Select Analog Input… from the Hardware menu.

The Analog Input window displays.

2. Double-click on appropriate row under the Zero Scale column and enter a zero

scale value.

3. Double-click on appropriate row under the Full Scale column and enter a full scale

value.

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4. Click OK to save the changes and close the window.

Note

To save the changes and leave the window open so that you can monitor the analog
input, click Save.

3.7.4 Assign an Analog Inputs code

Sets the unique code for each available analog input system variable.

The same code value is outputted via Modbus to differentiate the analog inputs.

Procedure

1. Use the Hardware → Analog Input menu.

2. Select the Code column and enter the code for the analog input.

3.7.5

Set the type of analog input signal

The GC’s analog inputs can receive a 4-20 mA current. To set the type of signal generated
by the analog input device, do the following:

Procedure

1. Select Analog Inputs… from the Hardware menu.

The Analog Inputs window displays.

2. Select Switch and use the pull-down menu to choose the input type.

• Setting the switch to Variable means that the analog input will be set

automatically, based on the signal it receives.

— Options are: Var_Std

— Var_Namur_NE43

• Setting the switch to Fixed means that the analog input will be set to the value

that you enter in the appropriate row under the Fixed Value column.

3. Click OK to save the changes and close the window.

Note

To save the changes and leave the window open so that you can monitor the analog
input’s progress, click Save. The type of signal being generated displays in the mA/
Volts column, and is updated in real time.

3.7.6

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Monitor the status of an analog input

To check an analog input’s status, select Analog Input… from the Hardware menu.

The operational status of each analog input displays under the Status column. There are
three possible status readings, and their meanings are as follows:

OK

The analog input is installed and is working correctly.

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Hardware

Not Installed

Error

This window also displays other types of data, such as the following:

mA

mA

Cur Val

The analog input is not installed.

The analog input is installed, but the GC cannot communicate with it.

The type of analog input signal being received.

If mA displays in the mA column, then this column displays the amount of
current being received, in milliamperes.

The current value of the analog input signal.

3.7.7 Calibrate an analog input

To calibrate an analog input, do the following:

Procedure

1. Select Analog Input… from the Hardware menu.
The Analog Input window displays.

2. Click the analog input that you want to calibrate.

3. Set the analog input’s Zero Scale by entering its minimum anticipated value.

4. Set the analog input’s Full Scale by entering its maximum anticipated value.

5. Click AutoCal…(F4) or press F4.
The Analog Input Calibration Assistant runs.

6. Click Next.
Step 2 of the Analog Input Calibration Assistant displays.

7. Click Next.
Step 3 of the Analog Input Calibration Assistant displays.

8. Click Next.
Step 4 of the Analog Input Calibration Assistant displays.

9. Click Finish.
The calibration is complete.

3.8 Analog outputs

With MON2020 you can control the analog outputs in the following ways:

• Assign identifying labels.

• Assign scale ranges.

• Calibrate analog outputs for zero and full scale values.

• Analog Input 4-20 mA external loop power

3.8.1

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Rename an analog output

Give each analog output a descriptive label to avoid confusing one unit for another. To
assign an identifying label, do the following:

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Procedure

1. Select Hardware → Analog Outputs… from the menu.
The Analog Outputs window displays.

2. Double-click on the appropriate row under the Label column for the analog output
that you want to rename.

Note

The analog output devices are labeled Analog Output 1 - Analog Output N by
default, where N equals the total number of analog outputs available to the GC.

3. Type in a new descriptive name for the analog output.

4. Click OK.

Reference Manual

3.8.2

Set an analog output’s operational mode

An analog output has the following operational modes:

• Var_Standard: Setting the switch to Var_Standard means that the analog output will

be proportional to the variable selected in from the Variables column.

• Var_Namur_NE43: Namur_NE43 uses the 3.8 to 20.5 mA signal range for

measurement information, with ≥21 mA or ≤3.6 mA to indicate diagnostic failures.

• Fixed: Setting the switch to Fixed means that the analog output will be set to the value

that is entered in the appropriate row under the Fixed Value column. This is the default
setting.

To set an analog output’s operational mode, do the following:

Procedure

1. Select Analog Output… from the Hardware menu.

The Analog Output window displays.

2. Select the desired mode from the drop-down menu under the Switch column for

the analog output.

3. Click the drop-down menu in the Variable column.

4. Double click the Variable name and click to configure the selected opton.

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5. Click Save to save the changes and leave the window open so that you can monitor

the analog output.

Note

To save the changes and close the window, click OK. The current value of the analog
output displays in the Cur Val column, and is updated in real time.

3.8.3 Set the scale values for an analog output device

To set the zero scale and full scale, which are used when converting the analog output
value, do the following:

Procedure

1. Select Analog Output… from the Hardware menu.

The Analog Output window displays.

2. Click on appropriate row under the Zero Scale column and enter a zero scale value.

3. Click on appropriate row under the Full Scale column and enter a full scale value.

4. Click OK to save the changes and close the window.

To save the changes and leave the window open so that you can monitor the analog
output’s progress, click Save.

3.8.4

Map a system variable to an analog output

To select the system variable on which to base the signal level of the analog output, do the
following:

Procedure

1. Select Hardware → Analog Output… from the menu.

The Analog Output window displays.

2. Select a new variable by clicking on the appropriate drop-down list under the

Variable column.

For a demonstration of how to use the context-sensitive variable selector, see The

context-sensitive variable selector.

3. Click OK to save the changes and close the window.

Note

To save the changes and leave the window open so that you can monitor the analog
output’s progress, click Save.

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3.8.5 Monitor the status of an analog output

To check an analog output device’s status, select Analog Output… from the Hardware
menu.

The operational status of each analog output displays under the Status column. There are
three possible status readings, and their meanings are as follows:

OK

Not Installed

Error

This window also displays other types of data, such as the following:

mA

Loop Power

Current
Value

Related information

Hardware menu

The analog output device is installed and is working correctly.

The analog output device is not installed.

The Heater/Solenoid board is installed but the GC cannot communicate
with it.

The amount of current being generated in milliamperes.

Loop power can be configured as Internal or External ,

• Internal – This uses internal power from GC power supply and this is

default setting.

• External – This uses external power supply

The 4-20 mA loop current is changed by varying the opposition
(resistance) to current flow on the loop. Used to measure the process
variables.

The current scaled value of the analog output signal.

3.8.6

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Calibrate an analog output

To automatically calibrate an analog output, do the following:

Procedure

1. Select Analog Output… from the Hardware menu.
The Analog Outputs window displays.

2. Click the analog output that you want to calibrate.

3. Click AutoCal…(F4) or press F4.
The Analog Output Calibration Assistant runs.

4. Select the checkbox for the unit of measure you want to use for the calibration and
then click Next.
Step 2 of the Analog Output Calibration Assistant displays.

5. Enter the Zero Scale Adjustment value and then click Next.
If the value entered is within tolerance, it is accepted and Step 3 of the Analog
Output Calibration Wizard displays. If the value is not within tolerance, an error icon
(

) appears beside the field. Tolerance is set to ±1 mA of the analog output’s default

zero adjustment setting, which is 4 mA. Enter a different value and try again.

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6. Enter the Full Scale Adjustment value and then click Next.
If the value entered is within tolerance, it is accepted and Step 4 of the Analog
Output Calibration Wizard displays. If the value is not within tolerance, an error icon
( ) appears beside the field. Tolerance is set to ±1 mA of the analog output’s default
full adjustment setting, which is 20 mA. Enter a different value and try again.

7. Click Finish.
The calibration is complete.

Related information

Hardware menu

3.9 Installed Hardware

MON2020 can compile an inventory table of all hardware that is installed on the GC. To
view this table, select Installed Hardware… from the Hardware menu.

The type of hardware installed is listed under the Device Description column. The other
types of information available on this screen are the following:

IO Function

Slot Number

Describes the function of the device.

Describes the location of the hardware in the GC. The slot number
refers to the card cage assembly, which is located in the GC’s
Electronics enclosure. For the Rosemount 700XA and Rosemount
1500XA, the slots are labeled:

• Expansion Slot 1

• Expansion Slot 2

• Slot 1

• Slot 2

• Slot 3

• Slot 4

• Base IO

• Foundation Field Bus

• LOI

• Expansion Slot 3

• Expansion Slot 4

• FID1

• FPD1

• Slot 5

• FPD G2 Slot 1

• FPD G2 Slot 2

• FID G2 Slot 1

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• FID G2 Slot 2

• EPC G2 Slot

• FPD G2 Slot 3

• FPD G2 Slot 4

• FID G2 Slot 3

• FID G2 Slot 4

There are no slots in the 370XA, therefore this column will display
Analyzer for all hardware.

Revision

Device
Description

The revision number of the backplane.

Describes data for a field device.

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4 Application

Many of the variables that a gas chromatograph uses during an analysis run—such as timed
events, stream sequence, and calculation types—can be easily managed through
MON2020.

This chapter explains how to do the following:

• View and edit general information about the GC to which MON2020 is connected, such

as name, model, and default stream sequence.

• View and edit component data, validation data, and timed event tables.

• View and change control, average, and user-defined calculations.

• View and edit limit alarm data.

• View and change stream data.

• View and edit the stream sequence.

• View and edit communication and ethernet port data.

• View and map LOI status variables.

• View and map the FOUNDATION fieldbus process variables.

4.1 System

Use this feature to select the default GC stream sequence and to set or edit system-wide
variables such as the GC's name, serial number, and system description.

The following information displays on this window:

Name

Analyzer Name Defines the GC name that a the Status Bar on the main window when MON2020 is

System description A place to record miscellaneous reference information to fur identify the currently

Site Id Holds customer-defined identification information.

Company Name The name of the company that operates the GC.

Location The physical location of the GC.

Model The model number of the GC.

Serial No. Serial number of the GC. This is a unique identifier that is given to the GC at the factory.

Firmware Version Revision level of firmware of the GC and its associated firmware checksum.

Description

connected to the GC. Can contain up to twelve characters.

connected system. Can contain up to twenty-eight characters

Standard Component Table
Version for GPA

Standard Component Table
Version for ISO

MON2020 79

Indicates which version of the GPA's standard component table is being used.

Indicates which version of the standard component table is being used.

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Name Description

CGM FCAL Archive Sets he storage behavior for final calibration chromatograms. The options are:

1. Keep Last FCAL Per Day - the last final calibration chromatogram of the day.

2. Keep All FCAL Per Day - Saves all final calibration chromatograph.

CGM FVAL Archive Sets the storage behavior for final validation chromatograms. The options are:

1. Keep Last FVAL Per Day - Saves only the la validation chromatogram of the day.

2. Keep FVAL Per Day - Saves all final validation chromatograms.

Date Format Defines how the date will be displayed. Th are:

• MM$$DD$$YYYY

• MM$DD$YY

• DD$MM$YYYY

• DD$MM$YY

• YYYY$MM$DD

• YY$MM$DD

$ is the Date Field Separator

Date Field Separator Defines the text symbol that will be used as the separator when displaying he options are:

• /

• -

• .

Time Format Defines how will be displayed. The options are:

• HH:M

• HH:MM

Time Notation Defines the cycle of time to use when displaying the time: The options are:

• 12 Hr

• 24 Hr

Synchronize with FF Timing Sets the GC's time to match the Foundation Fieldbus' time. Enabled by selecting the

checkbox.

Show Advanced System
Variables

Determines whether advanced system variables will be displayed along with basic system
variables. Advanced system variables can be customized and may include:

• Anaylzer Name

• System Description

• Company Name

• Location

• Chromatograph ID

Allow Multiple Writers Determines whether all supervisor-level users that connect to the GC have write access,

or just the first supervisor-level user to connect. Options are True and False.

Maintenance Mode Switches the GC to maintenance d triggers an alarm that the GC is down for maintenance.

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Name Description

Max Warm start Delay This is the maximum time, (in Hours) after a GC recovers power failure during normal

operation, that the GC will wait for and electronic pressure controller to reach their
respective set and stabilize before triggering the Warm start Failure alarm.

Energy Value Check If enabled, the GC analyzes the calibration gas as an unknown stream and computes its

energy value. The GC then compares this value to the Cal Gas Cert CV and determines if
the calibration gas' energy value is within the CV Check Allowed Deviation. If it isn't, the
GC triggers the Energy Value Invalid alarm.
The following conditions must be met before the GC can perform a EV Check:

• The EV Check flag in the System window must be enabled.

• At least one stream must be set up in the Streams window as a calibration stream and

the Auto flag for this stream must be enabled.

The EV Check is performed under any of the following circumstances:

• During a warm start that follows a power failure during normal operation. The GC

waits for the heater and electronic pressure controller to reach their respective set
points and stabilize. It then analyzes the calibration gas as an unknown stream and
identifies the peaks. If all the component peaks are identified, the GC computes the
calibration gas' energy value and performs the EV Check.

• After a successful calibration, the GC computes the gas' energy value with the new

response factors and performs the EV Check.

Sales Order Number

Calibration Retry on Failure A calibration fails, the GC will re-run the calibration sequence.

Calibration Repeatability
Check

Metrology Type Shows the metrology type that the GC is configured for.

GC Id This field can be used to store a unique text string that will be associated with the GC and

Identification Number This field can be used to store a unique text string that will be associated with the GC and

Configuration Checksum at
Lockout

Current Configuration
Checksum

Checksum Update Time The time that the configuration checksum was last updated.

Chromatograph ID A three character string value which is unique across all installed GCs. The first character

Chromatograph Site ID A float value; you can set any float value to differentiate the GCs.

The sales number for the GC. When contacting Customer Support, you may be asked to
provide this number to the Customer Support agent.

If enabled, the GC will check of the repeatability of calibration runs to the limits specified
in ISO6974-6:2002(E), Table 1. If the calibration fails to meet the conditions set forth in
the table, then the calibration is deemed to have failed and the GC will rerun the
calibration sequence.

that can be displayed on reports.

that can be displayed on reports.

The checksum of the configuration fields that is calculated when the security switch is
locked.

The GC will periodically recalculate and update the configuration checksum. This current
value will be the latest calculated value.

must be a letter, and the second and third characters may be either numbers or letters.
Special characters are not allowed in the Chromatograph ID.

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Name Description

Keep Last Good Average A checkbox column.

1. If you uncheck this option, then a zero value will be logged in the archive records
during times when the alarm is not averaging.

2. If you check this option st average value will be logged in the archive records when
the alarm is not averaging. In this case, the number of samples is set to zero while
the average archive records.

Ext. Modbus® Calibration
Archive Data

GC Mode (370XA only). Allows you to select an operating mode for the GC.

Modbus® Stream Alarm Bit
Association

A dropdown list with the following options (the selected option will be used by the
Calibration and Final Calibration data types in the Modbus Map Editor for the 700XA series
registers):

1. Circular Buffer (default): If you select this archived calibration, data will be logged as
a circular buffer and will store a maximum of 35 calibration records.

2. Contract Day: If you select this option, the calibration data will be for each contract
day and will store a maximum of one month of calibration data. This option will be
selected for El Paso type applications.

(370XA only). Modbus® Stream Alarm Bit Association defines the behavior of how stream
specific alarms are encoded into Analysis Stream → Active Low Alarm Status and
Analysis Stream → Active High Alarm Status system variables. Possible values for this
column:

• 0 - SIM2251 Emulation - [Default] status (active or inactive). If you select this option,

the only one stream will be displayed. The first alarm configured for a particular
stream in the Limit Alarms screen will be conveyed through Bit 0 Status (active or
inactive). The second alarm configured for a particular stream will be conveyed
through Bit 1, and so on. The status for up to 32 limit alarms per stream can be
transmitted if a 32 bit register is used.

• 1 - Limit Alarm Row Position -The row position in the Limit Alarms screen determines

which bit is used to convey status. If you select this the statuses of up to 32 alarms
selected in the Limit Alarms screen will be displayed. Status (active or inactive) of
Limit Alarm 1 is conveyed it 0. Status (active or inactive) of Limit Alarm 2 is conveyed
through Bit 1, so on. The status for up to 32 limit alarms per stream can be
transmitted if a 32 bit register is used.

Default Stream Sequence

Calculate Checksum Click Calculate Checksum to calculate the current configuration checksum of the input

(370XA only). Sets the default sequence to be used by the indicated detector during
auto-sequencing. To create a new stream sequence or to edit an already-created
sequence, click Stream Sequence.

file and the number of bytes the file contains.

1. Press Calculate Checksum at the bottom of the System window to compute a 32-bit
checksum of the configuration that can be compared to the Configuration Checksum
at Lockout field to determine if the analyzer's configuration has been modified.

2. The checksum that is calculated is stored in the Current Configuration Checksum field
and the date and time of the calculation is stored in the Checksum Update Time field.

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Note

If you receive a Configuration checksum calculation failed error message after
pressing Calculate Checksum, contact your local Rosemount Customer Care
Representative.

Related information

Application
Create a stream sequence for a detector

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4.2 The component data tables

MON2020 allows you to view and edit the component data tables. The number of
available component data tables depends on the GC unit configuration.

To assign a component data table to a stream, see Link a valve with a stream.

Procedure

1. To view a component data table, select Component Data... from the Application
menu.

The Component Data Tables window appears, displaying a list of available
component data tables.

Note

You can also access the component data tables by pressing F6 or by clicking from
the Toolbar.

2. Select the table that you want to view.

The selected component data table displays.

4.2.1

Note

To see a different table, select it from the Choose table dropdown list.

Note

To sort the list of components by detector, and then by retention time, click Sort
RT.

Edit a component data table

Note

Table cells with a white or yellow background are editable; table cells with a turquoise
background are not editable.

To edit a cell, do the following:

Procedure

1. Click the Cell.
Depending on the cell type, you are either required to select a value from a
dropdown list, or you can type in the value directly.

2. To save the changes and close the window, click OK.

Note

To save the changes without closing the window, click Save.

The following table lists all of the editable parameters available on the Component
Data Table window. The standard values for these parameters were taken from the
second editions of the Orifice Metering of Natural Gas and Other Related Hydrocarbon

Fluids and the Compressibility Factors of Natural Gas and Other Related Hydrocarbon
Gases.

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Component This drop-down list contains the complete catalog of

available components for the selected stream.

Usr Std Indicates the source of the component:

• Usr - The component was edited or defined by the user.

• Std - The component was selected from the standard list

of components and no changes were made to its standard
data.

Det # The component’s detector number.

Ret Time Time in seconds before the apex of the component’s peak

will appear. The retention time can be set from 0 to 3600
seconds.

CAUTION

Ensure that the component retention times do not exceed
the analysis time, as defined by the Timed Events table.
MON2020 does not automatically prevent the user from
defining excessive component retention times.

Resp Factor A component’s response factor is equal to the raw data of

the component’s peak divided by the component’s
concentration. The maximum value is 1.0E+38.

Calib Type MON2020 can perform six types of calibrations:

• Single-Level - Uses the standard calibration in which the

response factor is needed to determine the mole
percentage during the calibration.

• Fixed - During the calibration, the response factor is not

updated.

• Relative - Calibration in which a reference component is

used to compute the mole percentage.

• Multi-Level - Uses a polynomial equation to compute the

mole percentage during the calibration. Values must be
entered in the Multi-level Calib a, Multi-level Calib b,
Multi-level Calib c, and Multi-level Calib d cells.

• 2-pt Calib - Uses an exponential power fit using two

different points to address non-linear detector response.
Two calibration gases - Low and High with different
calibration concentrations are required. By doing a single­level (or linear) calibration on these individual streams,
the GC computes the coefficients for the 2-pt exponential
power fit. To set up an Analysis/Validation stream to use
2-pt calibration, see Set up an Analysis/Validation stream

to use 2 point calibration (700XA and 1500XA only).

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• From CDT X (X = 1 to 8) - Allows you to copy calibration

factors (Response Factor and Retention Time) from
another CDT. This is used when two or more calibration
gases are required to generate response factors and
retention times for all the components that are to be
analyzed. At the end of a successful calibration, response
factors and retention time will be copied from the
alternate CDT.

Calib Conc The amount, in mole %, parts per million (ppm), parts per

billion (ppb), or mg/m3 of the component that is present in
the calibration gas.

Unit Indicates the unit of measure used when calculating and

displaying the component’s calibration concentration.
Options are Mole%, ppm, ppb, and mg/m3.

Cal Conc
Uncertainty

For the 370XA only, uncertainty values from the calibration
gas's certificate. Default value is 2.

Anly Meth Defines how the component concentration is computed. The

analysis method can take one of the following values:

• Area - Calculates the component concentration by

dividing the peak area by the response factor.

• Height - Calculates the component concentration by

dividing the peak height by the response factor.

• Fixed - The component concentration equals the

component's calibration concentration displayed in the
Calib Conc column of the component data table. No
calculation is performed using the response factor.

• By Difference - All components except one (n) are added

up and then subtracted from 100%. n is 100 - (sum of all
other components).

• Analog Input - The GC reads the analog input channel,

scales the raw milliampere value to engineering values
that were set in the Analog Inputs window, and uses this
value as the component concentration. No calculation is
performed using the response factor.

RT Secs Dev The maximum acceptable deviation time, in seconds, of the

new retention time from the current retention time.

RT Upd Meth Determines when the retention time will be updated.

Options are:

• Cal - Updates the retention time only during the final

calibration run.

• Anly - Updates after each analysis.

Resp Fact % The maximum acceptable percent of deviation between the

new response factor and the current response factor.

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Gross Dry BTU Gross energy content per cubic foot (ft3), assuming no water

is present.

Net Dry BTU Net energy content per cubic foot, assuming no water is

present.

Gross Dry BTU perlbGross energy content per pound, assuming no water is

present.

HV Sup MJ/m

HV Inf MJ/m

3

3

Gross heating value in megajoules per cubic meter.

Net heating value in megajoules per cubic meter.

HV Sup MJ/kg Gross heating value in megajoules per kilogram.

HV Inf MJ/kg Net heating value in megajoules per kilogram.

Sum Factor Pri Used to calculate the compressibility factor. See Streams for

more information.

Sum Factor Sec Used to calculate the compressibility factor. (the ratio of the

actual volume of a real gas to the volume predicted by the
ideal gas at the same temperature and pressure).

CV Superior

Gross caloric value per kilojoule/mol (kJ/mole %).

KJ/mol - Pri

CV Inferior Pri Net caloric value per kilojoule/mol (kJ/mole %).

CV Superior

Gross caloric value per kilojoule/mole (kJ/mole %).

KJ/mol - Sec

CV Inferior Sec Net caloric value per kilojoule (kJ/mole %).

Hydrogen Atoms Displays the number of hydrogen atoms for a component.

Gals/1000 SCF Liquid equivalent volume in gallons/1000 ft3.

Reid Vapor The component’s vapor pressure in pounds per square inch

(psia) at 100.0 °F (38 °C)

Lbs/Gallon Liquid density for the component at base conditions.

Rel Dens Gas The relative density of the gas phase for the component at

base conditions.

Rel Dens Liquid The relative density of the liquid phase for the component at

base conditions.

Mole Weight The molecular weight of the component, which is used to

calculate the weight percent of each component in the
sample.

Carbon Weight The molecular weight of the carbon atoms in the

component.

AGA 8 Component The name of the component according to the American Gas

Association, which is used in the AGA 8 compressibility
calculation.

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Ref Comp The component not found in the calibration gas but in the

sample gas for indirect calibration. If none, normal (direct)
calibration is used.

Not editable unless the calibration type is set to Relative.

Rel Resp Fact A fixed multiple of the response factor of the component

found in the sample gas for indirect calibration.
Not editable unless the calibration type is set to Relative.

Rel Dens Liquid
15C

The relative density in kilograms per cubic meter (kg/m3) of
the liquid phase for the component at 15 °C.

Molar Mass The mass of one mole of the component.

Multi-level Calib a Third-order polynomial coefficient for multi-level

calibrations.
Not editable unless the calibration type is set to Multi-Level.

See Multi-Level Calibration.

Multi-level Calib b Second-order polynomial coefficient for multi-level

calibrations.
Not editable unless the calibration type is set to Multi-Level.

Multi-level Calib c First-order polynomial coefficient for multi-level calibrations.

Not editable unless the calibration type is set to Multi-Level.

Multi-level Calib d Zero-order polynomial coefficient for multi-level calibrations.

Not editable unless the calibration type is set to Multi-Level.

Component Code
(UK)

An index number that corresponds to the standard
component numbers taken from the American Gas
Association. Up to 20 components can be defined per data
table.

Component Code
(US)

An index number that corresponds to the standard
component numbers taken from the American Gas
Association. Up to 20 components can be defined per data
table.

2 Pt Calib Low CDT The component data table associated with a low calibration

gas (700XA and 1500XA only).

2 Pt Calib High
CDT

The component data table associated with a high calibration
gas (700XA and 1500XA only).

2 Pt Exp Value calculated from the 2 pt Calib Low CDT and the 2 Pt

Calib High CDT (700XA and 1500XA only). See Set up an

Analysis/Validation stream to use 2 point calibration (700XA
and 1500XA only) for more information on 2-pt. calibration.

Related information

Add a Component to a Component Data Table
Remove component from CDT
View raw data

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View standard values
Enter Energy Value
Change the default C6+ mixture ratio

4.2.2 Editing a calibration certificate details

Procedure

1. To access the Calibration Certificate Details screen, you may either click the Edit
Calib Certificate Details button in the Component Data Table window (see The

component data tables or press F8.

The Calibration Certificate Details window opens.

2. Enter the calibration certificate number and expiration date.

3. Click OK to save your changes and close the Calibration Certificate Details window.

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4.2.3 Editing energy value

Procedure

1. To access the Edit Energy Value window, you may either click the Edit Energy Value
button in the Component Data window (see The component data tables) or press
F7.
The Edit Energy Value window opens.

2. Choose a table from the Choose Table dropdown list.

3. Enter the Cal Gas Energy Value and the Energy Deviation Limit in the appropriate
fields.

The Calculated Cal Gas Energy Value field cannot be edited.

4. Click Save to save your changes without closing the Edit Energy Value window. Click
OK to save your changes and close the Edit Energy Value window. Click Cancel to
close the Edit Energy Value window without saving your changes.

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4.2.4 View the standard values for a component

If you have changed component’s values, it is still possible to view the standard values for
that particular component. To view the standard values for a component, do the
following:

Procedure

1. Select Component Data... from the Application menu.
The Component Data Tables window appears, displaying a list of available
component data tables.

Note

You may also access the component data tables by pressing F6 or by clicking from
the Toolbar.

2. Select the table that you want to view.
The selected component data table displays.

Note

To sort the list of components by detector and then by retention time, click Sort RT.

4.2.5

3. Click Std Values (F3).
The Standard Component Values window displays.

4. When you are finished viewing the window, click Close.

Display raw data from the Component Data table

To view the raw data for the displayed component data table, do the following:

Procedure

1. Select Component Data... from the Application menu.
The Component Data window displays.

2. Click Raw Data (F4) or press F4.
The Select dialog displays, listing the streams that are associated with the
component data table.

3. Double-click the desired stream.

The Raw Data window appears, listing the peak raw data from the last run of the
stream represented by the component data table.

The following data displays for each peak:

Peak No.

Ret Time Time, in seconds, that the component eluted.

Numerical identifier for the peak, listed by the order of
discovery.

Peak Area The area under the peak.

Peak Height The maximum height of the peak.

Det The detector associated with the peak.

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Method Method of peak end detection. Options are:

• 1 (Baseline): Baseline termination occurs when the absolute

values of twelve successive slope calculations are less than
the slope sensitivity.

• 2 (Fused Peak): A fused peak is found if a peak onset is

detected subsequent to the discovery of a peak crest and
before the baseline termination is detected.

• 3 (Last Fused Peak): The last peak in a group of fused

peaks.

• 4 (Tangent Skim): Baseline termination occurs when the

current level is lower than the Start Baseline value and the
slope at the point is negative and smaller in magnitude than
the average slope from the beginning of the peak.

• 100 (Inhibit): An Inhibit On event in the Timed Events table

caused the peak to be terminated.

• 300 (Forced Integration): An Integration Off event in the

Timed Events table caused the peak to be terminated.

• 500 (Summation): A Summation Off event in the Timed

Events table caused the peak detection logic to sum
together the peak areas under multiple peaks between the
Summation On and Summation Off events and to add an
entry for an artificial peak with its area set to the composite
area under the constituent peaks.

Baseline Start

The raw detector counts at the start of an integration. For
example, if the peak starts at 10 seconds, then the raw
detector counts at 10 seconds becomes the Baseline Start
value.

Baseline End The raw detector counts at the end of an integration. For

example, if the peak ends at 35 seconds, then the raw detector
counts at 35 seconds becomes the Baseline End value.

Integration

Time, in seconds, when integration started.

Start

Integration End Time, in seconds, when integration stopped.

Peak Width @

The width of the peak taken at half of the peak’s height.

Half Height

Partial Peak If Yes, then the Partial Peak value is used in the summation

calculation; if No, then the Partial Peak value is not used in the
summation calculation.

4. Click Close to return to the Component Data window.

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Application

4.2.6

Change the default C6+ mixture ratio

The C6+ component that is detected by the GC is actually a mixture of up to four heavy
hydrocarbons - from hexane and above. When the energy value and other physical
properties are calculated for the mixture, the GC assumes a ratio of heavy hydrocarbon
components is used for the C6+ value. By default, there are four pre-defined ratios:

Component C6/C7/C8 percentages

C6+ 47/35/17 47.466/35.34/17.194

C6+ GPA 2261-99 60.0/30.0/10.0

C6+ 57/28/14 57.143/28.572/14.285

C6+ 50/50/0 50.0/50.0/0

To define a different ratio, do the following:

Procedure

1. Select Component Data on the Application menu.
The Component Data window opens.

Note

You can also click F6 to open the Component Data window.

2. Click the C6+ component field, which displays one of the four ratios described
above.
A dropdown list opens.

3. Select C6+ (User Def.) from the dropdown list.

4. Click Edit Percentage (F5).
The C6+ User Def. window opens.

5. Enter a composition percentage for each component.
The Total Percentage, which must equal 100 and is displayed on the window's title
bar, updates with the sum of the four ratios.

6. Click OK.
The Component Data window closes. The edited row on the component data table is
updated based on the new ratio.

7. Click Save to accept the changes without closing the window; click OK to accept the
changes and to close the window.

4.2.7

Set up an Analysis/Validation stream to use 2 point calibration (700XA and 1500XA only)

Procedure

1. In the component data table (CDT) associated with the Analysis/Validation stream,
perform the following:

a) Change the Calibration Type for a component to 2 Pt Calib.

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b) Change the 2 Pt Calib Low CDT to select CDT associated with Low

calibration gas.

c) Change the 2 Pt Calib High CDT to select CDT associated with High

calibration gas.

2. Run Single Stream on the stream associated with the Low calibration gas until the
readings stabilize.

3. Run Forced Calibration on the Low stream.

4. Run Normal Calibration on the Low stream.

5. Run Single Stream on the stream associated with the High calibration gas until the
readings stabilize.

6. Run Forced Calibration on the High stream.

7. Run Normal Calibration on the High stream.
If the Normal Calibrations on the Low and High streams in Step 4 and Step 7 are
successful, the GC is ready to analyze the Analysis/Validation stream using 2-pt
calibration constants that are gathered during the Low and High calibration runs.

For more information about how 2 pt. calibration works, see How a 2 point

calibration works.

How a 2 point calibration works

This section explains what happens in MON2020 and the GC when you select 2 pt.
calibration.

1. When the GC does a calibration on the Low stream, it copies the response factor
(RF) and calibration concentration (CC) for each component to the columns marked
Multi-Level Calib a and Multi-Level Calib b in the CDT associated with the Analysis/
Validation stream.

2. When the GC does a calibration on the High stream, it copies the RF and CC for each
component to the columns marked Multi-Level Calib c and Multi-Level Calib d in
the CDT associated with the Analysis/Validation stream.

3. It then computes 2-pt Exponent and RF values for each component using the
following formulas and stores them in the 2pt_exp and Response Factor columns
in the CDT.

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4. The Retention Time for each component in the Analysis/Validation CDT is an
average of the retention time from the Low and High CDTs.

5. During analysis/validation, the concentration is calculated using the formula:

Application

4.2.8 Add a component to a component data table

Note

Modbus registers use row indices instead of component names to extract component­based results. If you add a component in the Component Data Table, the row indices for all
the components that elute after the added component shift down by one position.
Similarly, if you delete a component, the row indices for all the components after the
deleted component shift up by one position. Modbus registers mapped to per-component
analysis results should be adjusted so that they use the correct row index.

To add a component to a component data table, do the following:

Procedure

1. Select Component Data... from the Application menu.
The Component Data Tables window appears, displaying a list of available
component data tables.

Note

You can also access the component data tables by pressing F6 or by clicking
the Toolbar.

2. Select the table that you want to view.
The selected component data table displays.

Note

To sort the list of components by detector, and then by retention time, click Sort
RT.

3. To add the new component below the currently selected component, click Insert
after.

from

4. To save the changes and close the window, click OK.

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Note

To save the changes without closing the window, click Save.

4.2.9 Remove a component from a component data table

To remove a component from a component data table, do the following:

Procedure

1. Select Component Data... from the Application menu.
The Component Data Tables window appears, displaying a list of available
component data tables.

Note

You can also access the component data tables by pressing F6 or by clicking
the Toolbar.

2. Select the table that you want to view.
The selected component data table displays.

from

Note

To sort the list of components by detector, and then by retention time, click Sort
RT.

3. Select the component that you want to remove.

4. Click Delete.

5. To save the changes and close the window, click OK.

Note

To save the changes without closing the window, click Save.

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Application

4.3 The timed events tables

Use this function to view and/or edit the timed events tables assigned to and used by
particular gas streams. The number of available timed events depends on the GC unit
configuration. The standard GC application contains eight timed events tables. The 370XA
contains two timed events table.

Note

See Launch the Timed Events table from the Chromatogram Viewer for more information
about editing timed events from the Chromatogram Viewer. To assign a timed events
table to a stream, see Link a valve with a stream.

Procedure

1. Select Timed Events... from the Application menu. The Timed Events Tables selector
window appears, displaying a list of available timed events tables.

Note

You can also access the timed event tables by pressing F5 or by clicking
Toolbar.

Note

If only one timed events table is available, it displays immediately, bypassing the

Timed Events Tables selector window.

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2. Select the table that you want to view.
The selected timed events table displays.

Note

To sort events by time, click the appropriate Sort button.

3. Choose the Analysis Train associated with timed event.

4. To see a different timed events table, select it from the Choose table dropdown list.

Related information

Edit timed events from the Chromatogram Viewer
Link a valve with a stream

4.3.1

Configure valve events

Valve-related events are grouped on the upper left side of the Timed Events window. To
edit valve-related events, do the following:

Procedure

1. Select Timed Events... from the Application menu.
The Timed Events Tables selector window appears, displaying a list of available
timed events tables.

Note

You can also access the timed event tables by pressing F5 or by clicking from the
Toolbar.

Note

If only one timed events table is available, it will display immediately, bypassing the
Timed Events Tables selector window.

2. Select the table that you want to view.
The selected timed events table displays.

Note

To sort events by time, click the appropriate Sort button.

3. Click the cell that you want to edit.
Depending on the cell type, you are either required to select a value from a
dropdown list, or you can type in the value directly. The following list describes the
valve-related parameters that are available on the Timed Events window.

Type

98 Rosemount Gas Chromatographs

The type of device associated with the event. You have the following
choices:

• Valve # - Valve number.

• DO # - A discrete output.

• Strm Sw - Switches to the next stream in the sequence.

Reference Manual

2-3-9000-745 December 2019

• FID Gain - Changes the gain of the FID detector. Available options

are Low and High.

• FID Auto Zero - Resets the baseline of the FID detector.

• Cal Gas Save - Sets the start or end time for the Cal-Gas Saver

feature.

• Hardware Inhibit - Set to Off to start to look for a peak; set to On to

stop looking for a peak for the valve, discrete output nuumber, or
detector number.

Application

™

4.3.2

Valve/D
O # /Det
#

State Turns the valve or discrete output on or off, or sets the FID to high or

Time Indicates the time, in seconds, that the event should occur during the

4. To save the changes and close the window, click OK.

Note

To save the changes without closing the window, click Save.

Use the drop-down menu to select the specific valve or discrete output
that should be used for the event.

This column does not apply if Strm Sw was selected from the Type
column.

low.
This column does not apply if Strm Sw was selected from the Type

column.

analysis. Enter a value between 0.0 and 3600.0.

Note

Event times must be less than the analysis time.

Configure integration events

Integration-related events are grouped on the upper right side of the Timed Events
window. To edit integration-related events, do the following:

Procedure

1. Select Timed Events... from the Application menu.
The Timed Events Tables selector window appears, displaying a list of available timed
events tables.

Note

You can also access the timed event tables by pressing F5 or by clicking
Toolbar.

Note

If only one timed events table is available, it displays immediately, bypassing the
Timed Events Tables selector window.

2. Select the table you want to view.

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from the

Application Reference Manual

December 2019 2-3-9000-745

The selected Timed Events Tables displays.

Note

To sort events by time, click the appropriate Sort button.

3. Double-click the cell that you want to edit.
Depending on the cell type, you will either be required to select a value from a drop­down list, or you will be able to type in the value directly. The following list
describes the integration-related parameters that are available on the timed events
window.

Type The type of integration event. You have the following options:

• Inhibit: Set to Off to start to look for a peak; set to On to stop looking

for a peak.

• Integrate: Set to On and Off to set a region in which the area under the

trace is computed as a peak regardless of peak onset discovery. The
resulting area is added to the raw data as a peak with the retention time
set to the integration off time.

• Summation: Set to On and Off to set a region in which the area of all

peaks found will be added together to create a single summed value.
The peaks that contribute to the summation are marked as partial
peaks in the raw data table, and the summation total is added to the
raw data as a new peak with the retention time set to the summation
off time.

• Slope Sens: The peak starts when the slope of six consecutive points is

greater than the slope sensitivity value that is displayed in the Value
column; the peak ends when the slope of six consecutive points is less
than the slope sensitivity value that is displayed in the Value column.

• Peak Width: Each point displayed on the graph represents the average

of N raw data points, where N is the value displayed in the
corresponding Value column.

• Single Base: Determines how the baseline is drawn under a peak.
— Off: The baseline is drawn from the point of peak onset to the point

of peak termination. This is not necessarily horizontal and if fact
usually has a slight slope. (Default)

— Bgn: Draws a horizontal baseline from the point of peak onset to a

point above or below the peak termination.

— End: Draws a horizontal baseline from a point above or below the

peak onset to the point of peak termination.

• Fused Ovrrd: Determines how the baseline is drawn when two or more

peaks are fused together.

— Off: A single baseline is drawn from the onset of the first peak of the

fused group to the termination of the last peak of the group.
(Default)

100 Rosemount Gas Chromatographs