Fluke 9933 User Manual

Hart Scientific

9933 TableWare

User’s Guide

Rev. 592101

Table of Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

What is Table Ware ?. . . . . . . . . . . . . . . . . . . . . . . . . . 1

License agreement . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4.1

Computer hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4.2

Computer software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

International settings . . . . . . . . . . . . . . . . . . . . . . . . . 5

Running Table Ware . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Table Ware main display . . . . . . . . . . . . . . . . . . . . . . . 5

1.8.1

Table Ware toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2 File menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.1

Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.1.1

Defaults - General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Defaults - Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Defaults - Resolutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Setup printe r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4

Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3 Coefficients menu. . . . . . . . . . . . . . . . . . . . . . . . . 15

3.1

Probe information . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2

Coefficients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2.1

Platinum probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Thermistor probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Thermocouple probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Raw data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.3.1

ITS-90 coefficients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Polynomial, CVD, and IPTS-68 coefficients . . . . . . . . . . . . . . . . . . 20

Thermocouple coefficients . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.3.2

3.3.3

Import/export file format . . . . . . . . . . . . . . . . . . . . . . 24

3.4.1

ITS-90 coefficients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Polynomial, CVD, and IPTS-68 coefficients . . . . . . . . . . . . . . . . . . 27

Thermocouple coefficients . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3.4.2

3.4.3

Coefficients and residuals . . . . . . . . . . . . . . . . . . . . . . 29

3.5.1

Table options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.5.1.1

3.5.1.2

Table options—type and range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Table options—resolutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

3.5.1.3

Table options—other setting s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6

3.6

3.7

Table temperature range chart . . . . . . . . . . . . . . . . . . . . 36

Requirements for calculating coefficient s . . . . . . . . . . . . . . 3 8

3.7.1

ITS-90 coefficients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

IPTS-68 coefficients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Callendar-V a n Dusen coefficients. . . . . . . . . . . . . . . . . . . . . . . . 40

Polynomial Coefficients . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Thermocouple coefficients . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Methods used for calculating coefficient s . . . . . . . . . . . . . . 4 4

3.8.1

ITS-9 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4

IPTS-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Callendar-V a n Dusen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Polynomial and thermocouple . . . . . . . . . . . . . . . . . . . . . . . . . 45

3.8.2

3.8.3

3.8.4

Software output . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

3.9.1

Report or ASCII text file . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

3.9.2

Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

3.10 Print preview window . . . . . . . . . . . . . . . . . . . . . . . . 46

4 T a ble menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

4.1

Enter coefficients . . . . . . . . . . . . . . . . . . . . . . . . . . 51

5 Help Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Search for help on . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Technical support . . . . . . . . . . . . . . . . . . . . . . . . . . 54

About . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

6 Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

6.1

Table Ware Messages . . . . . . . . . . . . . . . . . . . . . . . . 57

6.2

Table Ware Error Messages . . . . . . . . . . . . . . . . . . . . . 58

7 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Figures

Figure 1 TableWare Main Display Screen . . . . . . . . . . . . . . . . . . . . . 6

Figure 2 File Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 3 TableWare Defaults dialog . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 4 Defaults-General . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 5 Defaults-Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 6 Defaults-Resolutions . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 7 Coefficients menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 8 Probe Information dialog . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 9 Platinum Probe Coefficients dialog (ITS-90 selected) . . . . . . . . . . 16

Figure 10 Thermistor Probe Coefficients dialog . . . . . . . . . . . . . . . . . . 17

Figure 11 Thermocouple Probe Coefficients dialog . . . . . . . . . . . . . . . . 18

Figure 12 Raw Data dialog for ITS-90 coefficients. . . . . . . . . . . . . . . . . 19

Figure 13 Raw Data dialog for polynomial, CVD, and IPTS-68 coefficients . . . 21

Figure 14 Select Calculation Scale dialog . . . . . . . . . . . . . . . . . . . . . 22

Figure 15 Raw Data dialog for thermocouple coefficients . . . . . . . . . . . . . 23

Figure 16 Import file format for ITS-90 coefficients . . . . . . . . . . . . . . . . 25

Figure 17 Import file format for polynomial, CVD, and IPTS-68 coefficients . . . 27

Figure 18 Import file format for thermocouple coefficients . . . . . . . . . . . . 28

Figure 19 Coefficients and Residuals dialog . . . . . . . . . . . . . . . . . . . . 29

Figure 20 Enter Date dialog. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 21 Page Numbering dialog . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 22 Table Options dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 23 Table Options - Type and Range . . . . . . . . . . . . . . . . . . . . . 33

Figure 24 Table Options - Resolutions . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 25 Table Options - Other Settings . . . . . . . . . . . . . . . . . . . . . . 36

Figure 26 Print Preview window . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Figure 27 Sample report or exported ASCII text file . . . . . . . . . . . . . . . . 49

Figure 28 Sample table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Figure 29 Table menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Figure 30 Enter Coefficients dialog for ITS-90 coefficients . . . . . . . . . . . . 51

Figure 31 Help menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Figure 32 About TableWare dialog . . . . . . . . . . . . . . . . . . . . . . . . . 56

iii

1 Introduction

What is TableWare?

Introduction

1.1

What is TableWare?

TableWare is designed to calculate characterization coefficients for platinum,

thermistor, and thermocouple probes. The types of coefficients that can be cal-

culated are: ITS-90 for platinum probes; IPTS-68 for platinum probes;

Callendar-Van Dusen for platinum probes; Polynomial for platinum and therm-

istor probes; and coefficients for thermocouple probes types B, E, J, K, N, R, S,

T, and AuPt.

The raw data used to calculate coefficients may be entered into the software di-

rectly or imported into the software from an ASCII text file. TableWare creates

a report that can be either printed to a printer or exported to an ASCII text file.

TableWare also generates Temperature vs. Resistance, Temperature vs. Ratio,

and Temperature vs. EMF tables based on ITS-90, IPTS-68, Callendar-Van

Dusen, Polynomial or Thermocouple coefficients.

1.2

1.3

License agreement

For information and details regarding the software End User License Agree-

ment (EULA), refer to the online help file’s License Agreement topic.

Features

A list of new features and enhancements in version 2 of the TableWare follows:

Version 2.4

1. The logos and graphics displayed in TableWare have been updated.

Version 2.3

1. Prior to this version, the Shared Files Conflict dialog always appeared

when running the software in Windows NT with the file

COMMDLG.DLL listed. Even though the software works fine despite

this file conflict, this dialog no longer appears.

2. When generating Temperature vs. Ratio tables, the Inverse Difference

column was incorrectly labeled “dT/dr”. The label has been changed to

correctly read “dT/dW”.

3. When generating Temperature vs. Resistance tables or Temperature vs.

Ratio tables in °F, the values in the First Derivative (dr/dT) column and

Inverse Difference column (dT/dW) displayed the values as if the table

was in °C.

4. The Extrapolating message incorrectly appeared when generating a table

when; a) the Table Scale was set to °F or K and, b) the Minimum Temp.

9933 TableWare

User’s Guide

and/or Maximum Temp. setting fell outside the recommended tempera-

ture range in °C.

5. In version 2.2, an Overflow error sometimes occurred when attempting

to generate tables from thermistor polynomial coefficients that Ta-

bleWare calculated. This problem has been fixed.

6. A new range setting has been added for Type R and Type S Thermocou-

ple probes. This range is named “-50.0°C to 1768.1°C (using extrapola-

tion)”. Selecting this range allows TableWare to automatically determine

which reference function to use when calculating coefficients and table

values based on the temperature value. Selecting one of the other avail-

able ranges forces TableWare to use only the reference function for that

range.

7. Temperature vs. EMF (mV) tables can now be generated as well as Tem-

perature vs. EMF (μV) for thermocouple probes.

8. Residuals for thermocouple probes are now displayed/printed in the scale

that the UUT readings were entered in instead of always being dis-

played/printed in Vμ.

9. An Export button has been added to the Raw Data dialog, which allows

raw data to be saved to an ASCII text file in comma, delimited format.

Version 2.2:

1. A warning message will appear when calculating thermocouple coeffi-

cients if one of the selected set-points is within 5° of 0°C. The algo-

rithm used to calculate thermocouple coefficients forces the EMF at 0°C

to 0.0µV. Therefore, using a set-point at or near 0°C when calculating

thermocouple coefficients may cause erroneous results. For best results,

use at least two set-points that are not near 0°C.

2. The model and serial number labels used on the report and table are now

editable. These labels can be changed to display whatever information

your process requires. Simply enter the appropriate text in the Caption

and Value boxes on the Probe Information dialog. This information will

print on the report and table exactly as it is entered.

3. The report and table now support page numbering in the “Page x of y”

format. For reports, Page Numbering dialog appears when the Print Re-

port button is selected asking for the page number of the report and the

total number of pages. The report itself always fits on one letter-size

page. For tables, the starting page number is selected from the Table Op-

tions dialog. The number of pages depends on the temperature range as

well as the font size and is determined automatically by the software.

Adding this feature to the software made it necessary to create the table

twice: first to determine the number of pages, then to print the page num-

bers on each page. For this reason, it now takes twice as long to generate

a table.

1 Introduction

Features

If you want to create a document that includes the report and table, follow the

steps below:

a. Set the starting page for the table to “2”.

b. Print the table.

c. Print the report, setting the page number to “1” and the number of

pages to the same value that appears on the table.

d. If other pages need to included in the document, they may be in-

serted either before or after the report. Adjust the starting page num-

ber for the table and/or report accordingly.

4. The table can now be printed in increments of 0.01°. Prior to version 2.2,

the minimum allowable increment was 0.1°.

Note: Generating tables over a large range using a small increment may

take a few minutes, especially on 386 and some 486 PCs.

5. In conjunction with item 4 above, the default resolution for temperature

values on tables is now two decimal places.

Version 2.1.0.1

1. Version 2.1 build 2.1.0.1 fixed a bug with the calculation of coefficients

and table values for ITS-90 Range 6.

2. The resolutions that can be used now include up to 9 decimal places.

Prior to this version, the maximum number of decimal places was 7.

Version 2.1:

1. Version 2.1 of TableWare has added the capability to calculate Polyno-

mial coefficients for Platinum probes using a scale other than the scale of

the Reference readings. TableWare will automatically convert the Refer-

ence readings to the selected scale.

Version 2.0:

1. A Print Preview window has been added so that reports and tables can be

viewed on-screen before printing.

2. TableWare now allows tables to be exported to an ASCII text file. This

makes it possible to import the table into a spreadsheet or other

application.

3. TableWare now has the capability of generating a table from coefficients

entered by the user. No raw data is required.

4. The default printer may now be selected from the File menu. This option

allows the user to determine which printer (if more than one printer can

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User’s Guide

be used) the reports and tables are printed to, or which printer driver is

used.

5. The date that prints on the report and table can now be set by the user.

1.4

Requirements

TableWare requires certain computer hardware and software configurations in

order to execute properly.

1.4.1

Computer hardware

The following minimum computer configuration is required to use the

TableWare .

• IBM Compatible 386 PC with 4MB RAM minimum (IBM Compatible

486 PC with minimum 4MB RAM or later is recommended)

• VGA monitor or better

• 1 - CD-ROM/DVD drive for installation

• 1.5MB hard disk space for installation

1.4.2

Computer software

TableWare requires the following operating system:

• Windows® 95/98/NT

• Windows® 2000/XP

1.5

Installation

Note: Before installing TableWare, be sure to read the License Agreement

and Warranty.

A backup should always be made of your hard disk drive and registry before in-

stalling any software, and all running applications should be closed.

Note: To successfully install TableWare, you must be logged into Win-

dows® as a Power User or an Administrator.

Installing TableWare

1. Insert the TableWare CD-ROM into your CD-ROM drive. The Setup pro-

gram should run automatically.

2. Follow the on-screen instructions to install TableWare.

1 Introduction

International settings

3. When prompted, enter the product serial number. The serial number is

provided on a sticker typically located on the CD pouch on the inside

back cover of the TableWare User’s Guide.

4. After all files have been installed, a program group is created with icons

for the software, the Help file, the README.TXT file, and an icon to

uninstall the software. The installation process is complete.

5. The README.TXT file can be displayed by checking the appropriate

check box before the setup program finishes. Read this file for important

information that was not available when the User Guide was printed.

Uninstalling TableWare

To uninstall the software, use the Windows® Add/Remove Programs icon in

the Control Panel. Follow the instructions given. The program files that were

installed to your system are removed. Any files that were created or saved by

users will not be removed from the system. These files, along with the folders

that these files are in, must be manually deleted using Windows® Explorer to

remove them from your system.

1.6

International settings

TableWare requires the following number settings to be set:

• The International Number format thousands separator must be set to a

comma (,)

• The International Number format decimal separator must be set to a pe-

riod (.)

If your system does not use these settings by default, you must change your

system to use these settings using the Regional Settings or Regional Options

icon in the Control Panel.

1.7

1.8

Running TableWare

To launch TableWare, locate and click the icon created by the setup process.

The TableWare Main Display will be displayed.

TableWare main display

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User’s Guide

The TableWare main display screen (Figure 1) displays the software menu and

toolbar.

Figure 1 TableWare Main Display Screen

Enabled and disabled

All menu items and toolbar icons are enabled.

Screen information

The TableWare screen is the main display for the software. The display area re-

mains blank until a menu option or toolbar icon is selected.

To change TableWare default settings or exit the software, select the File menu.

To calculate coefficients, select the Coefficients menu. To generate a table, se-

lect the Table menu. To display the About screen or to get help, select the Help

menu.

1.8.1

TableWare toolbar

The toolbar provides quick access to the most common functions such as de-

fault settings, calculating the different types of probe coefficients, generating

tables, and help.

A description of the function of each toolbar button can be seen by placing the

mouse pointer over the button and waiting for approximately 1/2 second. A

help balloon appears indicating the function of the button. If a balloon does not

appear, make sure the “Show help balloons” check box on the File|Defaults

General tab is selected.

1 Introduction

TableWare main display

The following icons are available on the toolbar:

Defaults - Setup default settings

Platinum probe coefficient calculation - Calculate platinum probe

coefficients

Thermistor probe coefficient calculation - Calculate thermistor

probe coefficients

Thermocouple probe coefficient calculation - Calculate thermocou-

ple probe coefficients

Platinum probe table generation - Generate a table for a platinum

Thermistor probe table generation - Generate a table for a thermistor

Thermocouple probe table generation - Generate a table for a ther-

probe

mocouple probe

Help - Opens the help file search dialog

2 File menu

Defaults

File menu

Figure 2 File Menu

The File menu (Figure 2) provides options for setting program defaults, select-

ing the default printer, and exiting the software.

Enabled and disabled

All menu options are enabled.

2.1

Defaults

The Defaults menu option displays the TableWare Defaults dialog (Figure 3)

for selecting or modifying program default settings.

Figure 3 TableWare Defaults dialog

9933 TableWare

User’s Guide

Enabled and disabled

All tabs are enabled at all times.

Dialog information

The TableWare Defaults dialog allows the user to set default values or parame-

ters by selecting any of the three tabs; General, Tables, or Resolutions. The

General tab is for selecting TableWare setup defaults or preferences. The Tables

tab is for selecting the default settings specific to generated tables. The Resolu-

tions tab is for specifying decimal place settings for reference readings, residu-

als, UUT readings, and CJC readings.

2.1.1

Defaults - General

The General tab (Figure 4) is displayed when the File|Defaults menu option is

selected and the tab labeled General is selected.

Figure 4 Defaults-General

Enabled and disabled

All controls are enabled at all times.

Dialog information

The File|Defaults General tab determines the default setting for software de-

faults or preferences.

2 File menu

Defaults

The “Show help balloons” check box toggles the display of the help balloons.

The default is selected which means the yellow help balloons are displayed

when the mouse pointer is placed over a button on the toolbar.

The “Prompt to enter date that appears on report” check box allows the user to

manually type in a date to appear on the report and/or table when printed.

Check this option if the data you are entering is from a calibration performed

previously. If this option is unchecked, the current date is printed on the report

and/or table.

The “Enable print preview window” check box forces the reports and tables to

be displayed in a preview window on-screen when printing. If this check box is

not selected, reports and tables are printed directly to the printer when the print

button is selected.

The “Select printer before printing reports and tables” check box forces the

software to display the Select Printer dialog when printing. The user can then

select the printer to which reports and tables are printed. If this check box is not

selected, reports and tables are printed on the default printer. To change the de-

fault printer, use the File|Setup Printer menu option.

The “Maximize print preview window” check box determines the size of the

Print Preview window. If this check box is selected, the Print Preview window

fills the entire screen.

The “Print preview window zoom setting” determines the default size of the re-

port or table within the Print Preview window. The zoom setting is limited to

40% to 190%. The zoom setting can also be changed from the Print Preview

window once it is displayed.

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User’s Guide

2.1.2

Defaults - Tables

The Tables tab (Figure 5) is displayed when the File|Defaults menu option is

selected and the tab labeled Tables is selected.

Figure 5 Defaults-Tables

Enabled and disabled

All controls are enabled at all times.

Dialog information

The File|Defaults Tables tab determines the default settings to use when gener-

ating tables.

The “Export delimiter” allows the user to specify the delimiter used to separate

values when exporting a table to an ASCII text file. The user may select either

a tab or a comma as the delimiter.

The “Starting page number” allows the user to select or enter a number for the

starting page number of the printed table. The starting page number must be be-

tween 1 and 10.

The “Font to use” allows the user to specify the font to use when printing the

table values. The list of fonts consists of all fonts supported by the default

printer. The font size can also be selected. The allowable font sizes are from 6

point to 12 point. A sample of the selected font is displayed below the font

selection.

2 File menu

Defaults

2.1.3

Defaults - Resolutions

The Resolutions tab (Figure 6) is displayed when the File|Defaults menu option

is selected and the tab labeled Resolutions is selected.

Figure 6 Defaults-Resolutions

Enabled and disabled

All controls are enabled at all times.

Dialog information

The File|Defaults Resolution tabs allows the user to select the decimal place

setting for the reference readings, residuals, UUT readings, and CJC readings.

The resolutions are selectable from 1 decimal place to 9 decimal places.

These settings are used when:

• The user enters data on the Raw Data dialogs (i.e. Raw Data for ITS-90

coefficients, Raw Data for Polynomial, CVD, IPTS-68 coefficients, Raw

Data for Thermocouple coefficients).

• The coefficients and residuals are previewed on the Coefficients and Re-

siduals dialog.

• A report is printed.

• The data is exported to a text file.

9933 TableWare

User’s Guide

2.2

2.3

Setup printer

The setup printer menu option allows the user to select and configure the de-

fault printer. For TableWare, the orientation should always be set to “Portrait”

and the paper size should always be set to “Letter 8 ½ x 11 in” or “A4 210 x

297 mm”.

Exit

The Exit menu option exits TableWare.

3 Coefficients menu

Probe information

Coefficients menu

Figure 7 Coefficients menu

The Coefficients Menu (Figure 7) provides options for calculating coefficients

for Platinum, Thermistor, or Thermocouple probes.

Selecting one of the menu options displays the Probe Information dialog.

Enabled and disabled

All options are enabled at all times.

3.1

Probe information

The Probe Information dialog (Figure 8) is displayed from any of the Coeffi-

cients menu options.

Figure 8 Probe Information dialog

Enabled and disabled

The Continue button is enabled once both captions and values are entered.

9933 TableWare

User’s Guide

Dialog information

The Probe Information dialog allows the user to enter two captions and values

to identify the test probe or UUT (Unit Under Test) for which coefficients are

calculated. The captions default to “Model:” and “Serial:” but may be changed

as needed. Any text may be entered into the boxes provided. However, there is

limited space on the report and table to display this information.

3.2

Coefficients

The coefficient dialog which is displayed after the Continue button is selected

from the Probe Information dialog, is dependent on the Coefficients menu op-

tion selected.

3.2.1

Platinum probe

The Platinum Probe Coefficients dialog (Figure 9) is displayed when the Con-

tinue button is selected from the Probe Information dialog and the coefficients

being calculated are for a platinum probe.

Figure 9 Platinum Probe Coefficients dialog (ITS-90 selected)

Enabled and disabled

All options are enabled at all times.

Dialog information

The choices for platinum probes are ITS-90, IPTS-68, Callendar-Van Dusen,

and Polynomial. Depending on the coefficient type, additional information may

or may not be required.

• If the type selected is ITS-90, the low range and high range selection are

required. The choices for low range are Range 4, Range 5, or None. The

3 Coefficients menu

Coefficients

default is Range 4. The choices for high range are Range 6 through Range

11, or None. The default is Range 8.

• If the type selected is Polynomial, the order of the polynomial is required.

The order is selectable from 3rd to 9th order. The default for platinum

probes is 4th order. The number of coefficients calculated is one more

than the order of the polynomial (i.e. for a 4th order polynomial, 5 coeffi-

cients are calculated). The minimum number of set-points needed must

exceed the order by 1 or more.

• If the type selected is IPTS-68 or Callendar-Van Dusen, additional infor-

mation is not required.

The Continue button displays the Raw Data dialog for the selected type of

coefficients.

The Cancel button returns to the TableWare main display.

3.2.2

Thermistor probe

The Thermistor Probe Coefficients dialog (Figure 10) is displayed when the

Continue button is selected from the Probe Information dialog and the coeffi-

cients being calculated are for a thermistor probe.

Figure 10 Thermistor Probe Coefficients dialog

Enabled and disabled

All options are enabled at all times.

Dialog information

The only type of coefficients that can be calculated for thermistor probes is

polynomial. Both T(R) and R(T) polynomial coefficients are calculated.

9933 TableWare

User’s Guide

Note: The accepted thermistor model is based upon the logarithmic resis-

tance-temperature characteristic in terms of absolute temperature (Kel-

vin). The accuracy of a model based upon °F or °C has not been tested.

Therefore, TableWare always calculates polynomial coefficients for therm-

istor probes using Kelvin. If Reference readings are entered in °F or °C,

TableWare converts the readings to their Kelvin equivalent values before

the fit is computed.

Valid orders of the polynomial are from 3rd to 6th order. The default for therm-

istor probes is 3rd order. The number of coefficients calculated is one more

than the order of the polynomial (i.e. for a 3rd order polynomial, 4 coefficients

are calculated). The minimum number of set-points needed must exceed the or-

der by 1 or more.

The user is allowed to select whether or not the Steinhart-Hart method is used

when the coefficients are calculated. When Steinhart-Hart is selected, the third

coefficient (squared term) is set to 0.0. Refer to Section 3.7.4, Polynomial Co-

efficients for more information about the Steinhart-Hart method.

The Continue button displays the Raw Data for Polynomial dialog.

The Cancel button returns to the TableWare main display.

3.2.3

Thermocouple probe

The Thermocouple Probe Coefficients dialog (Figure 11) is displayed when the

Continue button is selected from the Probe Information dialog and the coeffi-

cients being calculated are for a thermocouple probe.

Figure 11 Thermocouple Probe Coefficients dialog

Enabled and disabled

All options are enabled at all times.

3 Coefficients menu

Raw data

Dialog information

The type of coefficient choices are: B, E, J, K, N, R, S, T, and Gold-Platinum.

The default is Type K.

The temperature range is dependent on the thermocouple type. Thermocouple

Requirements are explained in Section 3.7.5.

The Continue button displays the Raw Data dialog for Thermocouple

coefficients.

The Cancel button returns to the TableWare main display.

3.3

Raw data

The Raw Data dialog is formatted for either ITS-90, Polynomial, CVD,

IPTS-68, or Thermocouples depending on the type of coefficients selected.

3.3.1

ITS-90 coefficients

This Raw Data dialog (Figure 12) is displayed when the Continue button is se-

lected from the Platinum Probe Coefficients dialog and ITS-90 is selected as

the type of coefficients to calculate.

Figure 12 Raw Data dialog for ITS-90 coefficients

9933 TableWare

User’s Guide

Enabled and disabled

The Calculate button is not enabled until the required data is entered and the

scales are selected.

Dialog information

The user must select the Reference Scale and UUT Scale and enter Reference

Temperatures and UUT Resistances for the Triple Point of Water, Low Range,

and High Range, as applicable.

The choices for the reference scale are °C, °F, or K. The choices for the UUT

scale are Ohms or KOhms.

The reference temperatures are the temperature readings taken from the refer-

ence probe at the nominal temperatures. The UUT resistances are the readings

taken from the test probes at the nominal temperatures.

The yellow boxes designate the values that must be filled in for the type of co-

efficients being calculated to produce an exact solution. Entering values into

the white boxes is optional and produces an overdetermined solution. Section

3.8, Methods Used for Calculating Coefficients, contains additional

information.

The Import button reads raw data in from an ASCII text file. The data must be

stored in the text file in the format required for calculating ITS-90 coefficients.

The import file format for ITS-90 coefficients is discussed in Section 3.4.1.

The Export button saves the current raw data to an ASCII text file.

The Calculate button calculates the coefficients and displays the Coefficients

and Residuals dialog.

The Cancel button returns to the Platinum Probe Coefficients dialog.

3.3.2

Polynomial, CVD, and IPTS-68 coefficients

This Raw Data dialog (Figure 13) is displayed when the Continue button is se-

lected from the Platinum Probe Coefficients dialog and either Polynomial,

3 Coefficients menu

Raw data

Callendar-Van Dusen (CVD), or IPTS-68 is selected as the type of coefficients

to calculate or from the Thermistor Probe Coefficients dialog.

Figure 13 Raw Data dialog for polynomial, CVD, and IPTS-68

coefficients

Enabled and disabled

The Calculate button is not enabled until the required data is entered and the

scales are selected.

Dialog information

The user must select the Reference Scale and UUT Scale and enter Reference

Temperatures and UUT Resistances.

The choices for the reference scale are °C, °F, or K. The choices for the UUT

scale are Ohms or KOhms.

The reference temperatures are the temperature readings taken from the refer-

ence probe at the nominal temperatures. The UUT resistances are the readings

taken from the test probes at the nominal temperatures.

The yellow boxes designate the values that must be filled in for the type of co-

efficients being calculated to produce an exact solution. Entering values into

the white boxes is optional and produces an overdetermined solution. Section