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Installation and Operation Manual

X-BST-Qm-eng Part Number: 541B026AAA July , 2004

Brooks Service ToolTM for QUANTIM

Precision Mass Measurement and Control

www.BrooksInstrument.com

Brooks Service ToolTM for QUANTIM

Essential Instructions

Read this page before proceeding!

Brooks Instrument designs, manufactures and tests its products to meet many national and international standards. Because these instruments are sophisticated technical products, you must properly install, use and maintain them to ensure they continue to operate within their normal specifications. The following instructions must be adhered to and integrated into your safety program when installing, using and maintaining Brooks Products.

• Read all instructions prior to installing, operating and servicing the product. If this instruction manual is not the correct manual, please see back cover for local sales office contact information. Save this instruction manual for future reference.

• If you do not understand any of the instructions, contact your Brooks Instrument representative for clarification.

• Follow all warnings, cautions and instructions marked on and supplied with the product.

• Inform and educate your personnel in the proper installation, operation and maintenance of the product.

• Install your equipment as specified in the installation instructions of the appropriate instruction manual and per applicable local and national codes. Connect all products to the proper electrical and pressure sources.

• To ensure proper performance, use qualified personnel to install, operate, update, program and maintain the product.

• When replacement parts are required, ensure that qualified people use replacement parts specified by Brooks Instrument. Unauthorized parts and procedures can affect the product's performance and place the safe operation of your process at risk. Look-alike substitutions may result in fire, electrical hazards or improper operation.

• Ensure that all equipment doors are closed and protective covers are in place, except when maintenance is being performed by qualified persons, to prevent electrical shock and personal injury.

Installation and Operation Manual

X-BST-Qm-eng

Part Number: 541B026AAA

July , 2004

Handling Procedure:

1. Power to unit must be removed.

2. Personnel must be grounded, via a wrist strap or other safe, suitable means before any printed circuit card or other internal device is installed, removed or adjusted.

3. Printed circuit cards must be transported in a conductive container. Boards must not be removed from protective enclosure until immediately before installation. Removed boards must immediately be placed in protective container for transport, storage or return to factory.

Comments

This instrument is not unique in its content of ESD (electrostatic discharge) sensitive components. Most modern electronic designs contain components that utilize metal oxide technology (NMOS, SMOS, etc.). Experience has proven that even small amounts of static electricity can damage or destroy these devices. Damaged components, even though they appear to function properly, exhibit early failure.

Installation and Operation Manual

X-BST-Qm-eng Part Number: 541B026AAA July , 2004

Dear Customer,

Brooks Service ToolTM for QUANTIM

The Brooks Service Tool

is a Windows® - based application that provides expanded control of Brooks QUANTIM® QMA and QMB Mass Flow Control (MFC) devices for servicing tasks that include setup and configuration, troubleshooting, and tuning.

We recommend that you read this manual in its entirety as this will enable efficient and proper use of the Brooks Service Tool. Should you require any additional information concerning the Brooks Service Tool, please feel free to contact your local Brooks Sales and Service Office, see back cover for contact information, or visit us on the web at www.BrooksInstrument.com. We appreciate this opportunity to service your fluid measurement and control requirements,and trust that we will be able to provide you with further assistance in future.

Yours sincerely, Brooks Instrument

Contents

Brooks Service ToolTM for QUANTIM

Installation and Operation Manual

X-BST-Qm-eng

Part Number: 541B026AAA

July , 2004

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Installation and Operation Manual

X-BST-Qm-eng Part Number: 541B026AAA July , 2004

Paragraph Page Number Number

Introduction Section 1

1.1 Description .....................................................................................................................................1-1

1.2 How to Use This Manual ................................................................................................................1-2

Theory of Operation Section 2

2 Theory of Operation........................................................................................................................2-1

Installation Section 3

3 Installation ......................................................................................................................................3-1

3.1 Installing the Service Tool Application .............................................................................................3-1

3.2 Connecting the PC to the Device....................................................................................................3-1

3.2.1 Hardware Requirements.............................................................................................................3-2

3.2.2 Connection Procedure................................................................................................................3-3

3.2.3 Disconnecting the PC from the Device .......................................................................................3-6

3.3 Device D-Connector Pin-Outs ........................................................................................................3-7

Basic Operations Section 4

4 Basic Operations ............................................................................................................................4-1

4.1 St arting the Service Tool and Opening a New Session ...................................................................4-2

4.2 Main Window Elements.................................................................................................................. 4-4

4.3 Setting the Main Window Options...................................................................................................4-5

4.4 Putting the Service Tool in Indicator or Control Mode .....................................................................4-8

4.5 Trend Graph Functions...................................................................................................................4-9

4.5.1 Trend Graph Elements ...............................................................................................................4-9

4.5.2 Stopping and S tarting T rending.................................................................................................. 4-11

4.5.3 Scrolling a Graph Axis ............................................................................................................... 4-11

4.5.4 Zooming on a Single Graph Axis ...............................................................................................4-12

4.5.5 Zooming on Both Graph Axes....................................................................................................4-13

4.5.6 Zooming on a Region of the Graph............................................................................................4-14

4.5.7 Displaying X and Y Values at a Particular Point .........................................................................4-15

4.5.8 Copying the Graph to the Clipboard...........................................................................................4-17

4.5.9 Saving the Graph to a File .........................................................................................................4-18

4.5.10 Printing the Graph....................................................................................................................4-18

4.6 Closing the Session and Exiting the Service Tool ..........................................................................4-18

Brooks Service ToolTM for QUANTIM

Contents

Viewing and Setting the Device Configuration Section 5

5 Viewing and Setting the Device Configuration ................................................................................5-1

5.1 Setting Input (Setpoint) and Output Upper and Lower Range V alues ............................................. 5-1

5.2 Viewing and Setting Alarms ............................................................................................................ 5-2

5.2.1 Diagnostic Alarm.........................................................................................................................5-3

5.2.2 Configuring Optional Warnings and Alarms ................................................................................5-4

5.2.3 Modifying Standard Alarm Behavior ............................................................................................5-6

5.3 Viewing and Setting Configuration Parameters ............................................................................... 5-7

5.3.1 Viewing the Control Response Parameters ................................................................................5-8

5.3.2 Viewing and Setting the Control Configuration Parameters ........................................................5-9

5.4 Viewing Device Information ...........................................................................................................5-10

5.5 Viewing and Setting Primary and Secondary Output Parameters ..................................................5-10

5.6 Viewing Sensor Parameters ..........................................................................................................5-12

5.7 Viewing Setpoint Parameters ........................................................................................................ 5-13

5.8 Viewing V alve Parameters.............................................................................................................5-14

5.9 Viewing Device V ariables............................................................................................................... 5-15

5.10 Saving the Current Device Configuration.......................................................................................5-17

5.1 1 Restoring a Saved Device Configuration ....................................................................................... 5-17

Contents

Brooks Service ToolTM for QUANTIM

Diagnostics Section 6

6 Diagnostics.....................................................................................................................................6-1

6.1 Checking the Warning, Alarm, and Diagnostic Status.....................................................................6-1

6.1.1 Clearing Latched Warning and Alarm Conditions........................................................................6-2

6.2 Testing the Primary and Secondary Outputs...................................................................................6-2

6.3 Testing the Input (Setpoint) ............................................................................................................. 6-5

6.4 Capturing Device Log Data to a File ...............................................................................................6-7

6.4.1 Importing a Data Log File into Excel ...........................................................................................6-9

Troubleshooting, Tuning and Calibration Section 7

7 Troubleshooting, Tuning and Calibration ........................................................................................ 7-1

7.1 Troubleshooting Strategies.............................................................................................................7-2

7.2 Device Tuning and Calibration Procedures..................................................................................... 7-7

7.2.1 Zeroing the Device’s Sensor.......................................................................................................7-7

7.2.1.1 Accessing the Service Tool’s Zero Sensor Function.............................................................7-7

7.2.1.2 Procedure for Zeroing the Sensor ........................................................................................7-8

7.2.2 Optimizing the V alve Behavior for Process Conditions............................................................... 7-10

7.2.2.1 Tuning the V alve Of fset and Span .......................................................................................7-10

7.2.2.2 Cleaning the Orifice for a QUANTIM QMA ..........................................................................7-13

7.2.2.2.1 Removing and Cleaning the QUANTIM QMA’s Orifice..................................................7-14

7.2.2.2.2 Reinstalling the Orifice and Checking the V alve Offset and S p an Values ......................7-15

7.2.2.2.3 Tuning the Valve Response (Proportional and Integral Gain)........................................7-18

7.2.3 Using V alve Override to Control the Valve Opening ...................................................................7-20

7.2.3.1 Using Pin 12 to Control the Valve Override .........................................................................7-21

7.2.3.2 Using the Service Tool’s Valve Override Function ............................................................... 7-22

7.2.4 Cycling the Setpoint ...................................................................................................................7-22

7.2.5 Calibrating the Device Input (Setpoint)....................................................................................... 7-24

7.2.6 Calibrating the Primary and Secondary Outputs ........................................................................ 7-28

Installation and Operation Manual

X-BST-Qm-eng

Part Number: 541B026AAA

July , 2004

Index ................................................................................................................................................... Index-1

Warranty, Local Sales/Service Contact Information...................................................................... Back Cover

Installation and Operation Manual

X-BST-Qm-eng Part Number: 541B026AAA July , 2004

FIGURES

Figure Page Number Number

4-1 Main Window Elements..................................................................................................................4-4

4-2 Process Variables Options ............................................................................................................. 4-6

4-3 Units of Measure Options ...............................................................................................................4-6

4-4 Trend Graph Options......................................................................................................................4-7

4-5 Setpoint Switch in Control Mode.....................................................................................................4-8

4-6 Trend Graph Main Elements........................................................................................................... 4-9

6-1 Setup for Testing Primary Output Volt age.......................................................................................6-2

6-2 Setup for Testing Primary Output Current.......................................................................................6-3

6-3 Setup for Testing Secondary Output Current ..................................................................................6-3

6-4 Setup for Testing Voltage Setpoint..................................................................................................6-5

6-5 Setup for Testing Current Setpoint..................................................................................................6-6

7-1 Setup for Calibrating to a Voltage Setpoint ....................................................................................7-24

7-2 Setup for Calibrating to a Current Setpoint ....................................................................................7-25

7-3 Setup for Calibrating to a Primary Output Voltage .........................................................................7-28

7-4 Setup for Calibrating to a Primary Output Current .........................................................................7-28

7-5 Setup for Calibrating to a Secondary Output Current.....................................................................7-29

Brooks Service ToolTM for QUANTIM

Contents

TABLES

Table Page Number Number

4-1 Options Window Functions.............................................................................................................4-5

4-2 Summary of Trend Graph Toolbar Functions .................................................................................4-10

4-3 Trend Graph Cursor Options .........................................................................................................4-16

5-1 Alarm/W arning Conditions Fields and Options ...............................................................................5-5

5-2 Alarms A ffected by Alarm Disable Options ..................................................................................... 5-6

6-1 Data Log Configuration Window Functions..................................................................................... 6-8

7-1 LED Indications .............................................................................................................................7-2

7-2 Common Start-Up Problems..........................................................................................................7-3

7-3 Common Operating Problems.......................................................................................................7-4

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Contents

Brooks Service ToolTM for QUANTIM

Installation and Operation Manual

X-BST-Qm-eng

Part Number: 541B026AAA

July , 2004

THIS PAGE WAS INTENTIONALLY

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Installation and Operation Manual

X-BST-Qm-eng Part Number: 541B026AAA July , 2004

1 Introduction

1.1 Description

The Brooks Service Tool is a Windows-based application that provides expanded control of Brooks QUANTIM QMA and QMB Mass Flow Control (MFC) devices for servicing tasks that include setup and configuration, troubleshooting, and tuning.

Section 1 - Introduction

Brooks Service ToolTM for QUANTIM

Brooks Service Tool Main Window

Using an RS-232 connection between a personal computer (PC) and the device’s service port, you can use the Service Tool to view, control, and modify data such as:

•Flow

• Setpoint

• Analog input/output (I/O) configuration

• I/O ranging

• Valve tuning

• Device I/O calibrations

• Diagnostics

1-1

Section 1 - Introduction

Brooks Service ToolTM for QUANTIM

1.2 How to Use This Manual

It is recommended that you read this manual before installing or using the Service Tool.

The manual is organized into the following sections: Section 1 Introduction

Section 2 Theory of Operation Section 3 Installation Section 4 Basic Operations Section 5 Viewing and Setting the Device Configuration Section 6 Diagnostics Section 7 Troubleshooting, T uning, and Calibration Index Back Cover Warranty, Local Sales/Service Cont act Information

Installation and Operation Manual

X-BST-Qm-eng

Part Number: 541B026AAA

July , 2004

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Installation and Operation Manual

X-BST-Qm-eng Part Number: 541B026AAA July , 2004

2 Theory of Operation

A typical mass flow measurement and control system consists of two components:

• Mass flow meter. A mass flow meter incorporates a sensor that measures the amount of mass flow and generates an electrical output signal directly proportional to the mass flow rate.

• Control valve. Mating a control valve with a mass flow meter provides a mass flow

controller (MFC). Implementing a mass flow controller requires using the mass flow output

signal as one input and a user-supplied setpoint signal as another input into a comparator circuit. These two signals are then compared and a control signal is generated to operate the opening or closing of the valve. The setpoint signal is, in effect, a request that the mass flow controller maintain a fixed mass flow rate.

Section 2 - Theory of Operation

Brooks Service ToolTM for QUANTIM

A setpoint signal can come in many forms. The Brooks QUANTIM QMA and QMB devices are analog—the input/output (I/O) signals between the mass flow device and the user’s control side are represented as a voltage (0–5 Vdc) or current (4–20 mA).

The Brooks Service Tool, which communicates with the device through an RS-232 connection between the PC and the device’s service port connector , uses a digital signal based on a proprietary protocol. The Service Tool has two operating modes:

• Indicator, in which the Service Tool is reporting on the data sent to it

from the device, which is being controlled by the normal setpoint source.

• Control, in which the Service Tool user specifies the setpoint,

overriding the normal setpoint source.

In either arrangement, the device will attempt to manage the opening and closing of the control valve to maintain the amount of mass flow as requested by the setpoint source.

Note that the Brooks Service Tool is meant to be used as a startup and troubleshooting tool. It is not intended to be permanently connected to the device in your application.

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Section 2 - Theory of Operation

Brooks Service ToolTM for QUANTIM

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Installation and Operation Manual

X-BST-Qm-eng Part Number: 541B026AAA July , 2004

3 Installation

This section describes how to install the Service Tool application onto a personal computer (PC), and how to connect the PC to the device.

3.1. Installing the Service T ool Application

The Service Tool application can be installed on a Windows PC under the following requirements:

• Windows 95, 98, Me, NT 4, 2000, or XP

• PC running at a minimum of 450 MHz, with at least 64 MB of RAM and a CD-ROM drive

Section 3 - Installation

Brooks Service ToolTM for QUANTIM

3.2. Connecting the PC to the Device

To install the Service Tool application, load the Service Tool CD-ROM

into the drive. On the CD-ROM disk, find the installation file, Setup.exe, and double-click it to launch the installation wizard. Follow the installation instructions in the wizard.

The following topics list the hardware requirements and describe the procedure for connecting the PC running the Service Tool to the device’s service port.

3-1

Section 3 - Installation

Brooks Service ToolTM for QUANTIM

3.2.1 Hardware Requirements

The following tools and cables are required to connect the PC serial port to the device’s service port:

• RS-232 to TTL communications interface adapter.

• Standard RS-232 serial cable (between your PC’s serial connector and

the communications interface adapter).

NOTE: If the distance between the PC and the device is short enough, the RS-232

cable is not necessary. Plug the communications interface adapter directly into the PC serial port.

• 3-wire communications cable (between the interface connector and the

device’s service port connector)

• Straight (flat blade) screwdriver

• 3/16-in. nut driver

Installation and Operation Manual

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Part Number: 541B026AAA

July , 2004

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Communications interface adapter

3-wire communications cable

Installation and Operation Manual

X-BST-Qm-eng Part Number: 541B026AAA July , 2004

3.2.2 Connection Procedure

To connect the PC to the device’s service port:

1. Turn off power to the device.

2. Remove the standard cable from the device’s 15-pin D-connector.

3. Remove the screw at the center of the top cover and the two 3/

4. Remove the cover.

Brooks Service ToolTM for QUANTIM

16-in. standoffs on the 15-pin D-connector.

Section 3 - Installation

Black service port connector located behind D-connector

15-pin D-connecto

D-connecto standoffs

Center cover screw

3-3

Section 3 - Installation

Brooks Service ToolTM for QUANTIM

5. Assemble the RS-232 serial cable, communications interface adapter, and Service Tool 3-wire communications cable.

6. Connect the RS-232 serial cable to a serial port on your computer.

If the distance is short enough, you can connect the communications interface adapter directly to the PC’s serial port, as shown below, and do not need the RS-232 serial cable.

Installation and Operation Manual

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Installation and Operation Manual

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7. Connect the 3-wire communications cable to the device’s service port, the black connector located behind the D-connector. Align the communications cable’s 5-pin connector with the black wire towards the center of the device (towards the LEDs).

The QUANTIM QMA model’s service port has a 6-pin connector. To attach the communications cable’s 5-pin connector to the 6-pin service port, make the connection so that the unused pin is the innermost pin (the pin closest to the center or LEDs), as shown in the following illustration.

Section 3 - Installation

Brooks Service ToolTM for QUANTIM

Service port connector attached (viewed from rear of device)

Unused 6th pin on QUANTIM QMA

8. Reconnect the standard cable to the device’ s D-connector.

This connection is used to apply power and the analog setpoint to the device while using the Service Tool.

9. Turn on power to the device.

10.Verify that the device initializes properly, as indicated by the Status LED being solid green.

You are now ready to use the Service Tool.

3-5

Section 3 - Installation

Brooks Service ToolTM for QUANTIM

3.2.3 Disconnecting the PC from the Device

When you are done using the Service Tool, you should disconnect the PC from the device and reinstall the device’s cover.

To disconnect the PC from the device’s service port:

1. Exit from the Service Tool.

2. Turn off power to the device.

3. Disconnect the standard cable and the 3-wire communications cable from the device.

4. Disconnect the RS-232 serial cable (or interface adapter) from your PC.

5. Place the cover onto the device, and reattach it using the screw at the center of the top cover and the two 3/16-in. standoffs on the 15-pin D-connector.

Installation and Operation Manual

X-BST-Qm-eng

Part Number: 541B026AAA

July , 2004

6. Reconnect the standard cable to the device’ s 15-pin D-connector. You can now reapply power to the device and begin using it in its process

application.

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Installation and Operation Manual

X-BST-Qm-eng Part Number: 541B026AAA July , 2004

3.3 Device D-Connector Pin-Outs

The QUANTIM device pin-outs are listed below .

Section 3 - Installation

Brooks Service ToolTM for QUANTIM

Pin No. Function

1 Setpoint Return 2 0 to 5 Vdc Flow Signal Output 3 Not used 4 4 to 20 mA Flow Signal Output 5 +13- to +30-Vdc Power Supply 6 Not used 7 4 to 20 mA Setpoint Input 8 0 to 5 Vdc Setpoint Input

9 Power Supply Common 10 Signal Output Return 11 +5 V Reference Output 12 Valve Override Input

13 4 to 20 mA Density or Temperature 14 Not used 15 Not used

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Section 3 - Installation

Brooks Service ToolTM for QUANTIM

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Installation and Operation Manual

X-BST-Qm-eng Part Number: 541B026AAA July , 2004

4 Basic Operations

This section describes the Service Tool’s basic operations, including:

• Starting the tool and opening a new session

• Setting the options to determine what variables will be displayed in the main window and how they will be displayed

• Putting the tool into Indicator or Control mode, which determines whether the tool can initiate changes in setpoint values

• Controlling different aspects of how the trending graphs are displayed in the main window

• Capturing the current st ate of the trend graph to the clipboard or a file, and/or by printing it to a hard copy

Section 4 - Basic Operations

Brooks Service ToolTM for QUANTIM

• Closing the session and exiting the tool

4-1

Section 4 - Basic Operations

Brooks Service ToolTM for QUANTIM

4.1 Starting the Service Tool and Opening a New Session

To start the Service Tool and open a new session:

1. Select the Brooks Service Tool from your Start menu, or double-click its application file. The main window displays, with no session open.

Installation and Operation Manual

X-BST-Qm-eng

Part Number: 541B026AAA

July , 2004

4-2

2. To open a new session, open the File menu and select New Session. The Open Session dialog box displays.

Installation and Operation Manual

X-BST-Qm-eng Part Number: 541B026AAA July , 2004

3. From the Select Communications Port drop-down list, select the

Comm port to which the Service Tool cable is connected, then click OK.

Section 4 - Basic Operations

Brooks Service ToolTM for QUANTIM

The Trend Graph and Status indicators begin showing the data that is being read from the device.

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Section 4 - Basic Operations

Brooks Service ToolTM for QUANTIM

4.2 Main Window Elements

Figure 4-1 indicates the major elements of the main window.

Installation and Operation Manual

X-BST-Qm-eng

Part Number: 541B026AAA

July , 2004

Maximum flow for which the device was calibrated

Trend Graph controls

Setpoint slider

(used in Control

mode)

Current Setpoint

value

Setpoint

Indicator/Control

switch

Status bar

Figure 4-1 Main Window Elements

Trend Graph

Trend lines of selected variable data, indicated by color

Variable data

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Installation and Operation Manual

X-BST-Qm-eng Part Number: 541B026AAA July , 2004

4.3 Setting the Main Window Options

To set the main window options, open the File menu and select Options. The Options window displays. From this window, you can

perform the functions described in Table 4-1.

Section 4 - Basic Operations

Brooks Service ToolTM for QUANTIM

Table 4-1 Options Window Functions

Function Description

Modify the current settings You can modify the options settings on any of the

three tabs. The options on the three tabs, and which elements on the main window they control, are illustrated in Figures 4-2 through 4-4.

Save current settings as defaults Changes that you make to the option settings are

in effect only for the current session. However, you can save the current settings so that they are used as the default values the next time a session is opened. To do this, select the Save Selections as Defaults option at the bottom of the Options

window. Cancel your setting changes Click the Cancel button. Save your setting changes Click OK.

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Section 4 - Basic Operations

Brooks Service ToolTM for QUANTIM

Installation and Operation Manual

X-BST-Qm-eng

Part Number: 541B026AAA

July , 2004

NOTE: Range values here affect only the trend graph; they do not change the representation of the variable on an analog output.

Figure 4-2 Process Variables Options

Range values determine

variable data values

at 0% and 100% scale

Graph options determine which variable data is trend graphed

Assignment options determine Setpoint type and what variable data is displayed

Select unit of measure

for each variable data type

Select this option to save current settings as default values next time a session is opened

Figure 4-3 Units of Measure Options

Enter precision of measurement data

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Installation and Operation Manual

X-BST-Qm-eng Part Number: 541B026AAA July , 2004

Section 4 - Basic Operations

Brooks Service ToolTM for QUANTIM

X-Axis Scroll Method determines how trend graph will advance over time:

• Smooth (continuously), or

• Page (in time window increments; for example, every 30 seconds)

Y-Axis Scale values

determine upper and lower

percentage values

along the Y-axis

Figure 4-4 Trend Graph Options

X-Axis Window determines the time window displayed along the X-axis

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Section 4 - Basic Operations

Brooks Service ToolTM for QUANTIM

4.4 Putting the Service T ool in Indicator or Control Mode

By default, a session opens with the Service Tool in Indicator mode. In this mode, the setpoint is being controlled by the standard setpoint input source. The setpoint data in the Service Tool’s main window “indicates” what the device is currently reporting as its setpoint.

However, you can control the setpoint directly from the Service Tool by moving the Setpoint Switch to Control, then using the slider to set the setpoint or entering a value in the field below the slider. Figure 4-5 shows the Setpoint controls and trend graph in Control mode.

Installation and Operation Manual

X-BST-Qm-eng

Part Number: 541B026AAA

July , 2004

Indicates when Setpoint slider was moved to current position

In Control mode,

use slider to choose setpoint

Enter setpoint value here,

then press the Enter key

Setpoint switch in Control mode, setpoint at 51.82 gr/hr

Figure 4-5 Setpoint Switch in Control Mode

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Installation and Operation Manual

X-BST-Qm-eng Part Number: 541B026AAA July , 2004

4.5 Trend Graph Functions

The following topics cover the functions that you can perform on the trend graph.

4.5.1 Trend Graph Element s

Figure 4-6 shows the Trend Graph’s main element s. Table 4-2 summarizes the Trend Graph’ s toolbar functions.

The data graphs are coordinated by color to the variable data to which they correspond. Note that the selection of what variable data to graph is determined by settings in the main window’s options; refer to “4.3 Setting the Main Window Options” on p. 4-5.

Section 4 - Basic Operations

Brooks Service ToolTM for QUANTIM

Trend Graph toolbar

Y-axis, indicating percent

of variable data relative

to upper/lower range settings,

as defined in the main window options

Figure 4-6 Trend Graph Main Elements

Mass Setpoint graph

Valve Drive graph

Mass Flow graph

Current variable data readings

X-axis, indicating elapsed time window since start of session

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Section 4 - Basic Operations

Brooks Service ToolTM for QUANTIM

Table 4-2 Summary of Trend Graph Toolbar Functions

Function Description

Installation and Operation Manual

X-BST-Qm-eng

Starts variable data trending, if it has been stopped.

Stops variable data trending.

Scroll up and down the Y-axis, or back and forth across the X-axis.

Zoom in and out of a selected axis.

Zoom in and out of both axes simultaneously.

Part Number: 541B026AAA

July , 2004

Zoom in on a region of the trend graph.

View the X- and Y-axes values at a given point in time the trend graph.

Copy the trend graph to the clipboard.

Save the trend graph as a file.

Print the trend graph.

The following topics provide more detail about each of the Trend Graph toolbar functions.

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