Measurement DataShuttle User Manual

DataShuttle and DynaRes

for Data Acquisition and Control

User’s Manual

the smart approach to instrumentation

™

IOtech, Inc.

25971 Cannon Road

Cleveland, OH 44146-1833

Phone: [phone]

Fax: [phone]

E-mail (sales): [e-mail]

E-mail (post-sales): [e-mail]

Internet: www.iotech.com

DataShuttle and DynaRes

Users Manual

for Data Acquisition and Control

p/n

1051-0901

Rev.

2.0

© 1998, 1999, 2000 by IOtech, Inc. November 2001 Printed in the United States of America

Warranty Information

Your IOtech warranty is as stated on the product warranty card. You may contact IOtech by phone,
fax machine, or e-mail in regard to warranty-related issues.
Phone: [phone], fax: [phone], e-mail: [e-mail]

Limitation of Liability

IOtech, Inc. cannot be held liable for any damages resulting from the use or misuse of this product.

Copyright, Trademark, and Licensing Notice

All IOtech documentation, software, and hardware are copyright with all rights reserved. No part of this product may be
copied, reproduced or transmitted by any mechanical, photographic, electronic, or other method without IOtech’s prior
written consent. IOtech product names are trademarked; other product names, as applicable, are trademarks of their
respective holders. All supplied IOtech software (including miscellaneous support files, drivers, and sample programs)
may only be used on one installation. You may make archival backup copies.

FCC Statement

IOtech devices emit radio frequency energy in levels compliant with Federal Communications Commission rules (Part 15)
for Class A devices. If necessary, refer to the FCC booklet How To Identify and Resolve Radio-TV Interference Problems
(stock # 004-000-00345-4) which is available from the U.S. Government Printing Office, Washington, D.C. 20402.

CE Notice

Many IOtech products carry the CE marker indicating they comply with the safety and emissions standards of the
European Community. As applicable, we ship these products with a Declaration of Conformity stating which
specifications and operating conditions apply.

Warnings, Cautions, Notes, and Tips

Refer all service to qualified personnel. This caution symbol warns of possible personal injury or equipment damage
under noted conditions. Follow all safety standards of professional practice and the recommendations in this manual.
Using this equipment in ways other than described in this manual can present serious safety hazards or cause equipment
damage.

This warning symbol is used in this manual or on the equipment to warn of possible injury or death from electrical
shock under noted conditions.

This ESD caution symbol urges proper handling of equipment or components sensitive to damage from electrostatic
discharge. Proper handling guidelines include the use of grounded anti-static mats and wrist straps, ESD-protective
bags and cartons, and related procedures.

This symbol indicates the message is important, but is not of a Warning or Caution category. These notes can be of
great benefit to the user, and should be read.

In this manual, the book symbol always precedes the words “Reference Note.” This type of note identifies the location
of additional information that may prove helpful. References may be made to other chapters or other documentation.

Tips provide advice that may save time during a procedure, or help to clarify an issue. Tips may include additional
reference.

Specifications and Calibration

Specifications are subject to change without notice. Significant changes will be addressed in an addendum or revision to
the manual. As applicable, IOtech calibrates its hardware to published specifications. Periodic hardware calibration is
not covered under the warranty and must be performed by qualified personnel as specified in this manual. Improper
calibration procedures may void the warranty.

Quality Notice

IOtech has maintained ISO 9001 certification since 1996. Prior to shipment, we thoroughly test our products and
review our documentation to assure the highest quality in all aspects. In a spirit of continuous improvement, IOtech
welcomes your suggestions.

Table of Contents

1 - Introduction & Installation of the

DataShuttle

Introduction …… 1-1
General Information …… 1-1

Development System …… 1-1
Expandability …… 1-1
Ranges/ Units of Measure …… 1-1
Data Presentation …… 1-2
Dynamic Resolution …… 1-2

Features and Configurations …… 1-3

For More Information …… 1-4
System Requirements …… 1-4
Hardware …… 1-4
Software Environment …… 1-4
Package Contents …… 1-4

DataShuttle Model Variations …… 1-4

DataShuttle-GP …… 1-4
DataShuttle-RTD …… 1-5
DataShuttle-TC …… 1-6
DataShuttle-5B …… 1-6

Installing Your DataShuttle …… 1-7
Physical Installation …… 1-8

To Install a DataShuttle …… 1-8

Single Unit Installation …… 1-8
Multiple Unit Installation …… 1-8

Printer Installation …… 1-9
Keyboard Adapter Installation …… 1-9
Next Steps …… 1-9

2 - DataShuttle - Technical Notes

Block Diagram …… 2-1
EDITCAL …… 2-2
Auxiliary Components …… 2-3

Starting EDITCAL …… 2-3
Analog Components …… 2-3

Instructions for Installing Components …… 2-3
Power Supplies …… 2-4

Examples …… 2-5

Example 1: Current Sense Resistor …… 2-5
Example 2: 3-Wire RTD Components …… 2-5
Example 3: Ground loops …… 2-6
Wiring Analog Outputs on the

DataShuttle …… 2-6

Current Outputs …… 2-7

Digital Components …… 2-8

Installing Digital Modules …… 2-8

Installing Pull-up Resistors …… 2-8
Installing Current Limiting Resistors …… 2-9

Counter/Timer …… 2-9

Counter/Timers lines available on the

DataShuttle …… 2-9

Troubleshooting: Installation …… 2-9

If You Need Customer Support …… 2-10

Troubleshooting: Operation …… 2-11

Hints …… 2-11
Operating Qs and As …… 2-11
Before Calling Customer Support …… 2-12

Product Specifications …… 2-13

Accuracy DataShuttle-16 Accuracy &

Resolution- …… 2-13

DataShuttle- 16 Thermocouple

Accuracy …… 2-13
Cold Junction Temperature Differential …… 2-14
DataShuttle-16 RTD Accuracy …… 2-14
Input Impedance …… 2-15
Noise Rejection …… 2-15
DataShuttle Noise Rejection …… 2-15
Common Mode Range …… 2-15
Input Protection …… 2-15
Resolution/Scan Rate …… 2-15

DataShuttle-16 Resolution And

Scan Rate …… 2-15

Analog Input …… 2-16

For the Analog Input Terminals on the

DataShuttle …… 2-16

Digital Input/Output …… 2-16

For the Digital Input/Output Termination on the

DataShuttle …… 2-16

Counter/Timer …… 2-16
Analog Output …… 2-16

DataShuttle-AO Resolution And

Accuracy …… 2-16

General Information …… 2-17

General Specifications of the

DataShuttle …… 2-17

General Specifications of the DS-5B

Models …… 2-17

3 - Introduction to the DynaRes

General Information …… 3-1

Development System …… 3-1
Expandability …… 3-1
Ranges/Units of Measure …… 3-1
Data Presentation …… 3-2
Dynamic Resolution …… 3-2

Features and Configurations …… 3-3

For More Information …… 3-3
DynaRes System Requirements …… 3-4

Hardware …… 3-4
Software Environment …… 3-4

4 - Installing the DynaRes

6 - Introduction to Terminal Panels

Overview …… 4-1
Verifying DynaRes Switch Settings …… 4-1

Single Board …… 4-1
Multiple Boards …… 4-1
Previously in Use …… 4-2

Physical Board Installation …… 4-2

Terminal Panel Connections …… 4-2
Physical Installation …… 4-3

To Install the DynaRes Board …… 4-3

Next Steps …… 4-3

Measuring Current …… 4-4
Setting the Board Number Switch …… 4-4

Multiple Boards …… 4-4
Single Board …… 4-4
Disabling Boards …… 4-4
Setting the Switch …… 4-4

To Set the Board Number Switch …… 4-4

Setting the Base Address …… 4-5

Setting DynaRes Base Address …… 4-5

To Set the Base Address …… 4-5
DynaRes Base Address Switch Additive

Values …… 4-5

Base Address Settings …… 4-6

Possible DynaRes Base Address

Settings …… 4-6

Changing Hardware Interrupts …… 4-6

5 - DynaRes - Technical Notes

Overview …… 5-1
Pin Assignments …… 5-1
Block Diagram …… 5-2
Recalibration …… 5-3

Factory Methods …… 5-3
Recalibration …… 5-3

EDITCAL Utility …… 5-3

Starting Editcal …… 5-3
EDITCAL Selections …… 5-3

To Select a Function …… 5-3

Troubleshooting: Installation …… 5-4

If You Need Customer Support …… 5-4

Troubleshooting: Operation …… 5-5

Hints …… 5-5
Operating Qs And As …… 5-5
If You Need Customer Support …… 5-5

Product Specifications:

DynaRes 8/16 …… 5-6

Accuracy DynaRes 8/16 General

Conditions …… 5-6
DynaRes 8/16 Thermocouple Accuracy …… 5-7
DynaRes 8/16 RTD Accuracy …… 5-7

Stability …… 5-8

DynaRes 8/16 STABILITY …… 5-8

Input Impedance …… 5-8
Noise Rejection …… 5-8

DynaRes 8/16 Noise Rejection …… 5-8

Common Mode Range …… 5-8
Input Protection …… 5-8
Resolution/Scan Rate …… 5-9

DynaRes 8/16 Resolution And Scan Rate …… 5-9

Digital I/O Channels …… 5-9
Counter/Timer …… 5-9

DynaRes 8/16 Ultra Current

Consumption …… 5-10

General Information …… 6-1

Features …… 6-1
Package Contents …… 6-1
Types of Panels …… 6-1

Physical Installation …… 6-1

To Install a Terminal Panel …… 6-2

Terminal Panel Cross Reference …… 6-2

Types of Terminal Panels …… 6-2

T31 Terminal Panel …… 6-2
T71 Terminal Panel …… 6-3

Reference Tables …… 6-4

T31 Pin Connectors …… 6-4

Functions of the T31 Terminal Panels Pin

Connectors …… 6-4

T71 Pin Connectors …… 6-4

Functions of the T71 Terminal Panel Pin

Connectors …… 6-4

Auxiliary Analog and Digital

Components …… 6-5

Auxiliary Components …… 6-5
Examples …… 6-6

Example 1: Current sense resistor …… 6-6

Example 2: 3-Wire RTD components …… 6-7

Example 3: Ground loops …… 6-7

Digital Auxiliary Components …… 6-8

Installing Digital Modules …… 6-8

Installing Pull-up Resistors …… 6-9

Troubleshooting Q & A …… 6-9
Product Specifications …… 6-10

Accuracy …… 6-10

Cold Junction Compensation Error …… 6-10
Cold Junction Temperature Differential …… 6-10
Thermocouple Calibration Numbers …… 6-10

Digital Input/Output …… 6-10

For the Digital I/O Termination on All Terminal

Panel Types …… 6-10
On T31 Terminal Panels Only …… 6-10
On T71 Terminal Panels Only …… 6-11

General Conditions …… 6-11

Terminal Panel Power Supply

Consumption …… 6-11

7 - Introduction to the ACAO Board

General Information …… 7-1

Development System …… 7-1
Expandability …… 7-1
Ranges/Units of Output …… 7-1
Data Presentation …… 7-1

Features and Configurations …… 7-2

For More Information …… 7-2
System Requirements …… 7-2

Hardware …… 7-2
Software Environment …… 7-2

8 - Installing the ACAO

Overview …… 8-1
Verifying ACAO Switch Settings …… 8-1

Single Board …… 8-1
Multiple Boards …… 8-1
Previously In Use …… 8-2

Physical Board Installation …… 8-2

Terminal Panel Connections …… 8-2
Physical Installation …… 8-3

To Install the ACAO Board …… 8-3

Setting the Voltage/Current Switches …… 8-3

Setting the Switches …… 8-3

To Set the Voltage/Current Switches …… 8-3
V/C Switch Settings for Analog Output

Channels …… 8-4

Next Steps …… 8-4

Setting the Board Number Switches …… 8-4

Multiple Boards …… 8-4
Single Board …… 8-5
Disabling Board …… 8-5
Setting the Switch …… 8-5

To Set the Board Number Switches …… 8-5
ACAO Board Number Switch Settings …… 8-6

Setting the Base Address …… 8-6

Setting ACAO Base Address …… 8-6

To Set the Base Address …… 8-6
ACAO Base Address Switch Additive

Values …… 8-7

Base Address Settings …… 8-7

Possible ACAO Base …… 8-7

9 - ACAO Analog Output & Control Board

Technical Notes

Overview …… 9-1
Recalibration …… 9-2

Factory Methods …… 9-2
Recalibration …… 9-2

Editing Calibration Files …… 9-3

CALOUT.DAT …… 9-3
Editcal Utility …… 9-3
Reconstructing Calibration Files …… 9-3
Multiple Boards/Panels …… 9-4

Calibration File Format …… 9-4

Analog Output Calibration File …… 9-4

Content of CALIB.DAT …… 9-4

CALOUT.DAT Notes …… 9-5

Reconstructing A Lost Calibration

File …… 9-5

Using EDITCAL …… 9-5

Starting EDITCAL …… 9-5

To Start Up EDITCAL.EXE …… 9-5

EDITCAL Selections …… 9-6

To Select a Function …… 9-6

Troubleshooting: Installation …… 9-6
Troubleshooting: Operation …… 9-7

Operating Qs And As …… 9-7
If you Need Customer Support …… 9-7

Product Specifications …… 9-8

Analog Outputs …… 9-8
Analog Output Ranges …… 9-8
Resolution …… 9-8
Speed …… 9-8
Maximum/Minimum Output …… 9-8

In Voltage Output Mode …… 9-8
In Current Output Mode …… 9-8
Accuracy ACAO General Conditions

Accuracy …… 9-8

Stability …… 9-8

In Voltage Output Mode …… 9-8
In Current Output Mode …… 9-9

Digital I/O Channels …… 9-9
Auxiliary Power Output …… 9-9

Auxiliary Power Output For The ACAO …… 9-9
10 Volt Reference …… 9-9

General Conditions …… 9-9

General Specifications of the ACAO …… 9-9
ACAO Power Consumption …… 9-9

10 - QuickLog Introduction

General Information …… 10-1

What You Need …… 10-1
System Requirements …… 10-1
Minimum Requirements …… 10-1

Setting Up QuickLog …… 10-2

Starting the Installation …… 10-2

For Computers Running Windows 3.x …… 10-2
For Computers Running Windows 95/98 ……10-2

Setup Summary …… 10-2
Completing Setup …… 10-2

Specifications …… 10-3

Meter Display Screens …… 10-3
Chart Display Screen …… 10-3
Logging …… 10-3
DDE …… 10-3
General Configuration …… 10-3
I/O Configuration By Channel …… 10-4
Chart Configuration …… 10-4

11 - Getting Started with QuickLog

General Information …… 11-1
File Menu …… 11-1
Edit Menu …… 11-1
Options Menu: General …… 11-2
Options Menu: Inputs …… 11-3
Options Menu: Output Meters …… 11-3
Options Menu: Chart …… 11-3
Chart Menu …… 11-4
Run Menu …… 11-4
Window Menu …… 11-4
Calibration Menu …… 11-4
Help Menu …… 11-4

12 - Applications Primer

Applications Reference …… 12-1

Connection Types …… 12-1

Analog Input & Output Applications …… 12-1
Digital I/O Applications …… 12-1

Sensor Connections …… 12-2
Single-Ended vs. Differential

Connections …… 12-2

Auxiliary Power Output & Voltage

Reference …… 12-2
Auxiliary Components …… 12-2
Digital Connections …… 12-2
Special Note For Thermocouple

Applications …… 12-3

13 - Analog Input & Output

Analog Input & Output …… 13-1

Thermocouples …… 13-1
Thermocouple Types …… 13-3
Supported Product Thermocouple

Ranges …… 13-3
Strain Gages …… 13-4
Piezoelectric Sensors …… 13-5
Audio …… 13-6
RTDs …… 13-7
RTD Ranges & Resolution …… 13-8
RTD Accuracy …… 13-9
Current …… 13-10
High Voltage Divider …… 13-11
Voltage Output …… 13-11
Current Output …… 13-12

Glossary

14 - Digital I/O

Digital Input & Output …… 14-1

Common Applications …… 14-1
High Power Optically Isolated Digital

Output …… 14-1
High Power Optically Isolated Digital

Input …… 14-2
Pulse Counting …… 14-4
Cascaded Counter/Timers …… 14-4
Frequency/Rate Measurement …… 14-5

Appendix A - Thermocouple Application

Tips

Introduction & Installation of the DataShuttle 1

Introduction

Thank you for selecting the DataShuttle for your project.

Our primary objective is to provide you with data acquisition systems that are easy to install, operate, and
maintain. We also strive to furnish the performance you need at the lowest overall cost. The benefits for you
are increased productivity, data you can count on, and, of course, meeting your budget.

We manufacture the DataShuttle as an enhancement product that readily plugs into the parallel port
of an IBM, or compatible, desktop or portable computer.

The product’s high noise rejection, input protection to withstand as much as 50 Volts, and guaranteed long
term stability make it ideal both for the laboratory and for harsh industrial environments. With its parallel
port interface, built-in terminal panel, and compact, light size, the DataShuttle is also completely portable,
providing for a quick and easy set-up in both in-house labs and remote test sites.

Using the DataShuttle together with our graphical interface application software (such as DASYLab
or QuickLog™), you can easily and very quickly implement a broad spectrum of research and commercial
tasks, in a variety of settings. You can, for example,

•

Display, and log data to disk for later analysis,

•

Measure temperature, pressure, flow and most other analog inputs from sensors and instruments,

•

Capture maximums, minimums, averages, or differences of measurements,

•

Monitor and control processes,

•

Set alarm limits on any input,

•

Control devices at preset levels (fans, pumps, heaters, etc.),

•

Control devices from digital input (from switches or TTL signals), and

•

Gather data unattended.

®

You can use the system interactively, operating controls or modifying your setup while the system is
running.

General Information

Development System

People who write their own software (rather than using an off-the-shelf application) can employ the
Analog Connection Windows Development System™ hardware driver. This can address all features
of the unit from within a program they design and code for their specific purpose.

Expandability

All DataShuttles have eight differential analog input channels and 8 digital input/output lines. You can add
one DataShuttle at a time to your computer, for as many as 15 units with a total of 120 analog input
channels and 120 digital I/Os.

Ranges/ Units of Measure

The six input ranges of the DataShuttle span from 50 milliVolts through 10 Volts DC, making it capable of
accepting data from almost any sensor. In addition, You can install a resistor, making the DataShuttle
capable of DC current measurements.

Its high accuracy makes the DataShuttle ideal for precise evaluations in the laboratory or field.

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Introduction & Installation of the DataShuttle 1-1

The DataShuttle together with our software – such as DASYLab or QuickLog PC – make it easy to specify
engineering units (degrees, volts, milliAmperes, etc.) for measurements, as well as which ranges to use.

(You can measure temperature, for example, by selecting from among 11 different thermocouple types,
or from a variety of resistance temperature devices – RTDs. With the application software, the process
simply consists of selecting the type of sensing device from a menu – the driver itself automatically handles
cold junction compensation and linearization.)

Data Presentation

The combination of hardware and application software (DASYLab or QuickLog PC) enables both
the display of data on the screen, and the logging of data to disk for later analysis.

The system is capable of showing data on the monitor in a variety of formats. On-screen meters can provide
accurate readings of any parameter on any channel. Chart displays can indicate trends for comparison
of actual measurements on several channels, or for setting data points or alarms.

Dynamic Resolution

All DataShuttles incorporate “Dynamic Resolution,” which improves the unit’s accuracy.

With this feature, resolution is greater at the lower (negative) end of any range than at the higher end.
As your readings approach the low end of any given range, the resolution becomes finer
(that is, the increments of the signal you can distinguish become smaller).

Dynamic resolution improvement is most noticeable when the signal remains below a 10% of full-scale
threshold (approximately). Our products, consequently, are the best available for taking accurate
measurements of low-level signals, as you would using a thermocouple sensor.

Dynamic resolution is always best toward the negative end of any range:

Dynamic Resolution for Dissimilar Ranges

Two vertical black “rulers” (range A and range B) portray the impact of Dynamic Resolution.
Their graduations – representing their ability to resolve – are always finer at the lower (more negative) ends
of their ranges, regardless of the spectrum of values the ranges are measuring.

1-2 Introduction & Installation of the Data Shuttle

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DataShuttle and DynaRes

Features and Configurations

Analog Input Channels DataShuttle-16 can achieve 16 bit resolution (.0015% of signal).

Resolution Selections

Data Acquisition Speed

Ranges

Noise Rejection

Sensors

Accuracy

Input Protection

Digital I/O

Counter/Timer

The DataShuttle-16 has eight differential analog input channels.

The resolution of the DataShuttle is selectable in software. With the
DataShuttle-16, it extends from 10 through 16 bits.

(These products also feature advanced “dynamic resolution.”
See page 1 – 2 for further explanation.)

The data acquisition rate for the DataShuttle reaches as high as 6 kHz at 9 bits,
in burst mode.

DataShuttle has six voltage ranges, all selectable individually for each analog
input channel.

The DataShuttle features a high noise rejection integrating converter
(in “low noise mode” it helps reject 50/60 Hz AC power line interference).

The DataShuttle supports accurate cold junction compensation and
linearization for thermocouple devices, and signal conditioning for resistance
temperature devices (RTDs).

Calibration constants are stored in non-volatile memory on each DataShuttle.

Built-in circuitry assures protection of analog input channels for ±50 Volts
continuous.

All DataShuttles feature eight digital input/output channels that the user can
configure individually to be input or output.

Every DataShuttle includes a counter/timer for precise timing (for counting
pulses or other events) which you can also use as a pulse output.
Counter/Timer controls analog pacing and is therefore, unavailable for use
with DASYLab software.

Isolation

Analog Output
Channels

The digital I/O lines on all models may be isolated with optional ODC
(opto 22) family modules.

The 5B models also accept optional –5B family isolation modules for analog
inputs and/or analog outputs.

All DataShuttle-AO models feature two optional 12-bit analog output channels
with one current (4-20mA) and six voltage ranges, software selectable

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Introduction & Installation of the DataShuttle 1-3

For More Information

For more information about the capabilities of your DataShuttle, please see the “Product Specifications” in
Chapter 2.

For instructions on controlling the unit with our interface software (such as DASYLab or QuickLog), refer
to that particular software manual.

To learn more about data acquisition and process control in general, and how to use our systems together to
accomplish everyday tasks, consult our Applications manual.

If you’re creating your own program to address the unit for a custom purpose, please see the Analog
Connection Development System help section.

System Requirements

Before installing the DataShuttle, make sure the computer system fulfills these minimum requirements:

Hardware

•

IBM PC AT (or higher) or -compatible, with at least 640k system RAM,

•

Floppy disk drive, CD-ROM drive and a hard drive.

Software Environment

•

Windows 3.1/95/98/NT,

•

Application software (DASYLab, QuickLog PC, the Analog Connection Development System, or other
compatible proprietary software; please see your software manual for directions for using it with the
DataShuttle). QuickLog for Windows 3.1, 95/98 only.

Package Contents

Your DataShuttle package should include:

•

One DataShuttle

•

One 6V 1A AC Adapter; or 5VDC,~2.5A Adapter for
DS-5B models (for U.S. market; may differ for international markets)
(Polarity )

•

One parallel cable (DB-25 M-F) IEEE 1284 Compliant.

•

This manual, including DataShuttle, QuickLog PC, and Applications

•

One QuickLog for Windows Disk

•

One Quickstart card

DataShuttle Model Variations

The DataShuttle family line offers 4 basic models, plus versions with 2 optional analog outputs.

DataShuttle-GP

The DS-16-8-GP and DS-16-8-GP-AO are general purpose units designed for all types of inputs. The DS­GP features terminals for 8 differential analog inputs and 8 digital I/O lines, with room for up to 8 high­power optically isolated models.

1-4 Introduction & Installation of the Data Shuttle

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DataShuttle and DynaRes

DataShuttle-RTD

The DataShuttle RTD models are specifically designed for high accuracy RTD measurements. The DS-16­8-RTD-115e version is suited for –200°C to 115°C measurements, and the DS-18-8-RTD-750C version is
suited for –200
factory for use with two or three wire RTDs. This model also features terminals for 8 digital I/O lines, with
room for up to 8 optically isolated modules. Two analog outputs are available on the –AO models: DS-16­8-RTD-115C-AO and DS-16-8-RTD-750C-AO.

The DataShuttle-RTD can also measure non-RTD inputs. For channels that are required to measure other
signals, remove the pre-installed resistors at R3 and R4. See example in the Analog Auxiliary Components
section of Chapter 2 for a more detailed illustration.

o

C to 750 °C measurements. Both have signal conditioning set resistors pre-installed at the

DataShuttle and DynaRes

Illustration of the DataShuttle-GP and DataShuttle-RTD

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Introduction & Installation of the DataShuttle 1-5

DataShuttle-TC

The DS-16-8-TC is the best model for thermocouple measurement. The DS-TC has a large aluminum
isothermal plate with screw terminals for 8 analog inputs. This isothermal plate improves accuracy by
attenuating temperature differences at the cold junction connector. Without this plate, the connectors can
vary in temperature by 5°C or more, causing a similar error in the reading reported by the DataShuttle .

The plate, however, does not prevent measurement of other signals, such as voltage or current. In addition,
the DataShuttle-TC features 8 digital I/O lines, with room for up to 8 optically isolated modules.

DataShuttle-5B

The DS-16-8-5B-AO offers the most compact solutions available for electrically isolating analog inputs,
analog outputs, and digital I/Os—all in one package. Up to 1500V isolation is available when installed with
the optional 5B modules for analog channels and/or opto22 modules for digital channels. The DS-5B’s
encasement is custom-designed to support the installation of these 5B modules.

The DS-5B features terminals for 8 differential analog inputs and 8 digital I/O lines; two analog outputs are
available on the –AO models. For maximum accuracy, each channel has a temperature sensor for
thermocouple cold junction compensation. Excitation terminals for driving strain gauges are also included
on each channel. In addition, each channel can accept current sense resistors for 4-20mA measurements.

Illustration of the DataShuttle-TC

1-6 Introduction & Installation of the Data Shuttle

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DataShuttle and DynaRes

Before installing 5B or opto22 isolation modules, it will be necessary to remove jumpers. Note also that if
two output isolation modules are installed, only six analog inputs are available for isolation. Odd-numbered
channels (1, 3, 5 or 7) should be used to track Analog Output 1 (AO1) and even-numbered channels for
Analog Output 2 (AO2).

Installing Your DataShuttle

Getting your DataShuttle up and running is a straightfoward process; you only need to:

•

Connect the DataShuttle to the parallel port of a computer, and

•

Connect power to the DataShuttle.

Guidelines for loading the software, and for starting up, depend on the application program you are going to
use (such as DASYLab
authorization).

The program you are going to use with the DataShuttle might even be unique and proprietary, a product of
your organization. (The Analog Connection Windows Development System is a powerful set of utilities
making it possible for software engineers to design and develop their own programs to exploit the
DataShuttle’s many features).

®

or QuickLog™, or a package by a third party developer who has our

Illustration of the DataShuttle-5B

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Introduction & Installation of the DataShuttle 1-7

In any event, please refer to the software provider’s installation manual, or user guide, for specific
information on how to load and run the particular program.

Troubleshooting
section in Chapter 2.

Be sure to turn the power to the DataShuttle and computer off before making or
removing connections.

Always remove the AC adapter from the power line before disconnecting it from the
DataShuttle.

Physical Installation

Installation very simply consists of plugging the DataShuttle’s DB-25 cable into the parallel port outside
your computer. The DataShuttle may be used in combination with any of our data acquisition products.

To Install a DataShuttle

Single Unit Installation

1. TURN THE COMPUTER OFF. Never plug anything into the computer’s parallel port without first

turning its power switch to the “off” position.

2. Connect the parallel input connector, on the left side of the DataShuttle, to the parallel port on your

computer with the provided DB-25 cable. The parallel port on the PC has 25 pins and is often
labelled “Printer” or “LPT.” Computers may have up to four parallel ports; the DataShuttle may
be connected to any one of these.

–

If you have any difficulty getting your unit to work, refer to the “Troubleshooting”

:$51,1*

3. Connect the provided AC Adapter to the 6-9V DC input just to the side of the parallel port of the

DataShuttle. Plug the AC Adapter into an AC power line.

4. Connect the sensors needed for your application: Remove the top cover of the DataShuttle by

removing the four screws in the corners of the unit. Connect the sensors needed for your application
to the DataShuttle screw terminals. Replace the cover. You may wish to refer to the Applications
Reference Manual for examples of particular applications.

Multiple Unit Installation

To install more than one DataShuttle– Follow the steps above to install the first DataShuttle. Then for every
additional DataShuttle you wish to install, simply connect the parallel input port of that DataShuttle to the
passthrough port of the previously installed DataShuttle. You may use the additional DB-25 cables to do
this, or you can plug the next DataShuttle directly into the previous one. If you prefer to keep the units
separate, you may also connect additional DataShuttles directly to any or all of the other parallel ports on
your computer.

In any of these ways, you may connect up to 15 DataShuttles to one computer.

Please note, however, that only two DataShuttles, may be powered off the same 6V, 1 amp AC Adapter.
Therefore, you must connect a new AC Adapter (see Step 3 above) to every third DataShuttle in a series.
This number may vary outside the U.S.

&$87,21

The DS-16-8-5B models are shipped with a 5V DC, ~2.5A regulated adapter instead of
the standard 6V adapter. If you are using DS-16-8-5B model(s) in your installation,
note that each of those units will require its own adapter.

Polarity

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DataShuttle and DynaRes

A Note on Board Numbers– When you are using multiple units in your installation, each unit needs to have
an identity, or “board number,” for the software to recognize it as “individual.”

When the software is loaded, it will conduct a search for all installed hardware, scanning first for in-system
boards and then for any DataShuttles connected to the parallel ports. Any plug-in boards that you have
installed will be assigned a board number first. Then the DataShuttle connected at LPT1 nearest to the
computer will be assigned the next available board number. Additional DataShuttles on LPT1 will
be assigned sequentially higher board numbers following the connection order. This process will
be repeated on LPT2, LPT3, and LPT4 until all units have received a board number.

Printer Installation

If you wish to use a printer on the same parallel port as a DataShuttle– Connect the printer cable to the
passthrough port of the last DataShuttle in the series. Printing can only take place when the DataShuttle
is powered and the data shuttle is not collecting data.

Figure 4. Installation with multiple DataShuttles and printer

Keyboard Adapter Installation

For field applications where no AC power line is available– The Keyboard Adapter power cable (available
optionally) may be used instead of the AC Adapter. To install, simply connect one end of the cable to the
keyboard port on the computer. (This connector must be the six-pin mini DIN style found on IBM PS-2s
and most portable computers.) Plug the other end of the cable into the DataShuttle’s DC input jack.

Next Steps

We recommend that only one DataShuttle be powered off a keyboard adapter; this may vary depending on
the computer used. (See the “Multiple Unit Installation” section for instructions on installing multiple
DataShuttles.)

If you are using DS-5B model(s) in your installation, it is recommended that you use an
external power source. The keyboard adapter might not meet the power requirements of
some DS-5B experiment setups.

Installing the Software – For information on loading and configuring DASYLab, QuickLog PC, or other
software please refer to the user guide for that software package.

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Introduction & Installation of the DataShuttle 1-9

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DataShuttle - Technical Notes 2

Although the technical notes presented in the following pages should seldom be needed, you may find one
or more of them to be of use, on occasion. The technical notes are:

•

Block diagram (of the DataShuttle showing on-unit processing)

•

Editing calibration numbers to accommodate changes to your installation,

or to restore missing files

•

Auxiliary analog and digital components

•

Counter/Timer

•

Use with AC Development System software

•

Troubleshooting: possible problems and solutions after installing,

and during operation of your unit

•

DataShuttle Specifications

Block Diagram

DataShuttle and DynaRes

Block Diagram of DataShuttle-16

11-13-01

*V/F Converter: 16 bits
**5V DC in for DS-5B models

DataShuttle - Technical Notes 2-1

EDITCAL

DataShuttles are calibrated at the factory prior to shipment, and should not need
re-calibration when you receive your order. The recommended calibration period is 2
years. Note that changing calibration numbers affects the accuracy of the analog
measurements.

EDITCAL.EXE (or EDITCAL, for short) is our utility program that allows the modification of calibration
numbers. Steps for starting and using EDITCAL follow.

1. Make sure the EDITCAL.EXE program file is located in the same sub-directory as the

application programs.

2. Load the EDITCAL.EXE program from the keyboard.

3. At the DOS prompt, enter EDITCAL, then press the [ENTER] key.

This invokes the utility.

Once EDITCAL is up and running you can use the arrow keys to navigate back and forth
among the following menu selections:

Data Files: To merge calibration files supplied from the factory into a single file for

systems that have multiple units, or to update existing calibration files.

AC EEPROM: To view or modify calibration data on Analog Connection units that

have non-volatile on-unit EEPROMS.

DS EEPROM: To view and/or modify the calibration numbers of DataShuttle

EEPROMs, or to perform an analog calibration

QUIT: Ends the EDITCAL session.

4. Move the arrow keys until DS EEPROM is flashing.

5. Press [ENTER].

6. Proceed according to the on-screen instructions that appear after making your selection.

At any time during your use of EDITCAL, you can press the [F1] key to display help­text regarding a highlighted field.

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Auxiliary Components

Starting EDITCAL

Auxiliary Components are required by some sensors, are used to protect digital signals, or are used to pull
digital outputs to a set level. There are two areas (one digital and one analog) on the DataShuttle for
installing auxiliary components. Schematics of Analog auxiliary components are shown in detail on
page 2-3. Schematics of Digital auxiliary components are shown in detail on page 2-6.

Schematic for Analog Auxiliary Components

Each channel on the DataShuttle has room for its own separate set of auxiliary components. Examples of
their use can be found in the following pages and in the Applications Reference Section.

Analog Components

Instructions for Installing Components

Most common sensors can be connected without the use of auxiliary components. Some of the sensor
installations (bridges, RTD circuits, voltage dividers and current sensors), however, require auxiliary
components. These components can be installed on the DataShuttle for convenience. This requires soldering
and some familiarity with electronics. In the examples in the Applications Reference Manual, and the
following, the component locations are shown but not the component values; you must calculate the values
if they are not supplied with the sensor.

The first step is to remove the daughterboard from the unit, as you will need full access to it for soldering on
the auxiliary components. To do this, simply remove the four screws in the corners of the daughterboard
and lift it off of the DataShuttle.

When using analog auxiliary components R1, R2, and R5 you must cut the shorting metal trace that
connects the two ends of the line together before installing any of the components in these locations. Use a
sharp knife to carefully slice through the trace without cutting additional traces. In the case of R5 this is a
plastic covered metal wire. Diagrams of the auxiliary component area, hole functions, and connection
possibilities are shown on the following page.

Note: Analog auxiliary components are not available on DS-5B models.

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DataShuttle - Technical Notes 2-3

Power Supplies

A Note on Power Supplies – The DataShuttle supplies the following voltages to power transducers, strain
gauges, etc. The currents available to the user are limited as follows:

Voltage Tolerance

Maximum Current

(mA)

Output Impedance

(ohms)

Vref(6.9V) ±5% 10 <1

+5V 4.5 to 5.0V 100 <50

+15V ±3% 10 100

-12V ±3% 10 100

Users of the open collector digital outputs and buffer amplifiers should be careful not to exceed these limits.
Any power used from these supplies will add to the specified supply current used by the DataShuttle.

−

Screw

Ter m inal

)LJ 

)LJ 

Board

−

GND (A)

R5

R2

R3/C1 R1

Board + Board

R5

R2

R3/C1 R1

−

Ground (A)

Vref

Board +

+15V

COM

−

12V

R

4

R

4

+ Sc rew Term ina l

Screw

−

Terminal

Placement of holes
in auxiliary component
area for a single channel

Placement of resistors
R1, R2 and R5.

)LJ 

)LJ 

)LJ 

R5

R2

R3/C1 R1

R5

R2

R3/C1 R1

R5

R2

R3/C1 R1

R

4

R

4

R

4

Placement of capacitor
C1 o r R3 R es istor fo r
current measurement.

Placement of R3 may
be to one of five places
on the right side of the
resistor.

R4 may be in one of
two holes on the right
side to one of 4 holes
on the left.

*Except DS-5B models

Analog Auxiliary Component Area on the DataShuttle

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DataShuttle and DynaRes

Examples

Example 1: Current Sense Resistor

The DataShuttle can measure currents up to 50 mA directly. A 24.9 Ohm precision resistor needs to
be installed in the auxiliary component area to do so. This connection for current measurement is shown
below. (To see how this connection adds to the circuit, refer to Figure on page 2-3.) R3 is used as a shunt
resistor across the positive and negative lines of the channel in use. To install this resistor, push the resistor
ends through the holes for R3 (from the terminal side) until the resistor lies flat with the panel surface.
On the backside, solder the wires to the holes, and then clip off the extra wire with pliers. This connection
does not require any additional traces to be cut. Be sure to select current measurement in the software
package that you are using. This installation allows the measurement of voltage across the resistor and the
conversion of this measurement to current using the equation V=IR. Observe the power rating of the resistor
you install at R3. Space is provided for a 1/4 Watt resistor.

Figure 6. Current Measurement Connection

Example 2: 3-Wire RTD Components

The most popular connection for RTDs is the three-wire type. This sensor requires the installation of
resistors R3 and R4 except for these DataShuttle RTD model, where both resistors are already installed.
Consult Set Resistor Values on page 2-14 for R3 and R4 values.

However, if you need to install these resistors yourself then do the following: Figure 4 and Figure 5 show
the possible locations of R3 and R4. Figure 1 will show you that R3 and R4 need to be connected
as in Figure 14. R5 is already in place and should not be removed. To install these resistors push the
resistor ends through the holes for R3 and R4 as shown in Figure 4 (from the terminal side) until the resistor
lies flat with the panel surface. If two wires cannot fit into the Vref hole then one wire may be soldered
to another that is already inserted. On the back side solder the wires to the holes. Then clip off the extra
wire with pliers. The auxiliary component area in question will now look like Figure 8. This connection
does not require any additional traces to be cut.

DataShuttle and DynaRes

.

3- Wire RTD

Figure 7. 3-Wire RTD Components

Figure 8 . 3-Wire RTD Connection

11-13-01

DataShuttle - Technical Notes 2-5

Example 3: Ground loops

Occasionally there is an installation where the ground connection is made at the sensor, but it is not reliable.
The solution to this “intermittent” ground is to replace the COM to GND(A) jumper wire at R5
(Figure on page 2-3) with a 10 Megohm, 5%, 1/4 Watt resistor. This provides a ground reference for the
analog inputs in question, but allows very little ground current to flow. In very noisy environments with
intermittent grounds, a smaller resistor may be used if the readings are erratic.

To install this resistor the wire at R5 must first be removed. After R5 has been removed push the resistor
ends through the holes for R5 (from the terminal side) until the resistor lies flat with the panel surface.
On the backside, solder the wires to the holes. Then clip off the extra wire with pliers. The auxiliary
component area in question will now look like Figure 9. This connection does not require any additional
traces to be cut.

Figure 9. Ground Loop Connection

Wiring Analog Outputs on the DataShuttle

Voltage Outputs

Voltage outputs can drive a wide variety of controllers, amplifiers, and other devices. Figure 9a shows the
standard way in which the Data Shuttle analog output terminals are connected to a load when the “Voltage
Output” option has been selected in the software.

Note: The load resistance should be at least 1000 ohms to guarantee that the output will not have to source

more than 10 mA.

Figure 9a. Voltage Output

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Current Outputs

Most current outputs connect to current loop devices, such as controllers. If you select the
“Current Output” option in the software then, the output current loop will be in the 4 to 20 mA range.
A 4 to 20 mA current device has the advantage of running the power and signal over the same pair of wires.
Also, current signals are much less susceptible to noise pickup than are voltage signals.

Note: The current loop connection on the Data Shuttle must be powered by a + 12V source. Since no such

source is available on the Data Shuttle itself, an external power supply must be used

Ungrounded Load

Several loads can be powered from a single supply, as long as the negative side of the supply is connected
to the Data Shuttle ground. The circuit in Figure 9b is the most common way to connect a current loop to
the Data Shuttle. In this case, the load is not grounded but is floating above ground level.

If there are multiple loads, then the negative terminal of each load must be connected to a
separate Analog Output (AO) terminal on the DataShuttle.

Figure 9b. Current Output, Ungrounded Load

For the current output option to work properly, the voltage from each AO terminal to ground must be at
least 2.6 volts. Therefore, since the voltage source may vary by +/- 1 V, the maximum load resistance that
can be used in this circuit is 420 ohms.

Grounded Load

If one side of the load must be grounded for some reason, use the circuit shown in Figure 9c. The
disadvantage of this circuit is that each load requires its own power supply. The same maximum load
resistance applies, i.e., 420 ohms.

Figure 9c. Current Output, Grounded Load

&$87,21

Inadvertent damage to the Data Shuttle’s Analog Output is possible! Some
situations can occur in which the software could start up in a default voltage
mode [instead of the selected current mode]. To avoid this possibility,
physically disconnect the current loops from the Data Shuttle prior to
shutting down or disabling the software, or prior to rebooting the PC.

DataShuttle and DynaRes

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DataShuttle - Technical Notes 2-7

Digital Components

Installing Digital Modules

Opto22 modules are available to safely connect the digital I/O lines to high voltage AC and DC sources.
There are four basic types:

Schematic for Digital Auxiliary Components

•

AC output: to switch AC power (relay)

•

DC output: to switch DC power (relay)

•

AC input: to sense AC voltage

•

DC input: to sense DC voltage

The output types are used to switch loads on and off. The input types are used to sense the high/low status
of a signal. All of the modules provide optical isolation between the high voltage and terminations.

These modules may be installed on any DataShuttle. First, remove the jumpers labeled R6 and R7. This
disconnects the digital I/Os from the terminals. The module will not fit into the panel until these jumpers are
removed. Then, simply insert the module and fasten the retention screw.

The terminals for that I/O have now changed their function from low voltage I/O to high voltage isolated
I/O. The two terminals become one input channel (high and low lines), or one output channel (like relay
contacts), depending on the type of module you have installed.

When using these terminals as input lines, be sure to connect the positive line to the old
OUT terminal and the negative line to the old IN terminal. Failure to do this will result in
the module not switching.

Installing Pull-up Resistors

As noted in the Applications Reference Manual and previously in this manual, the digital outputs are open
collector and must have a power source connected in order to drive loads. Merely connecting the output
terminal through a load (such as a bulb) and then to digital ground will not work. In this case, a pull-up
resistor connecting the output terminal to a power supply will complete the circuit.

This pull-up resistor is installed in position R8, as shown in the figure on page 2-6, which connects the
output to the unit’s +5 volt power supply. Figures in Chapter 1 show the physical location of R8 on the
DataShuttle. Note that R8 must be installed manually between the +5 volt supply and the output terminal
in question. To install this resistor, push the resistor ends through the holes for R8 (from the terminal side)
until the resistor lies flat with the panel surface. On the backside, solder the wires to the holes. Clip off the
extra wire with pliers. This connection does not require any additional traces to be cut. Use a 4.7K resistor
to give 1mA current flow or a 2.3K resistor to give 2mA current flow.

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Installing Current Limiting Resistors

To limit the current in the digital input line, install a resistor in the R6 position (remove the corresponding
jumper first).

Install a resistor in the R7 position (after removing the jumper) to limit the current in the digital output line.

Counter/Timer

The DataShuttle features one 16 bit counter/timer that may be used to count up to 216 (65,535) events. The
maximum rate of pulses it can measure is 3MHz. The counter/timer is connected to an internal 2MHz clock,
allowing it 0.5µS resolution.

There are four dedicated terminals for the counter/timer:

Counter/Timers lines available on the DataShuttle

Label Name Function

CTG Gate Input/output functions may operate when this line is high and stop

CT Trig Trigger Initiate input or output functions on rising edge
CT Out Output Output pulses or square waves
CT In Input Measure frequency of pulses, count pulses, or time events

All of these lines are TTL compatible. Please note that they may not be optically isolated with modules.

For more information and examples about the uses of the counter/timer please see the Applications
Reference or QuickLog chapters.

when it is low

Troubleshooting: Installation

If you experience difficulty in getting your DataShuttle up and running, please check to see that the
installation is according to the descriptions in Chapter 1.

If the software reports a unit failure, or that it cannot find a DataShuttle, then try these remedies:

1. Make sure the cable is securely connected from the DataShuttle input connector to the parallel port
on the computer.

2. Make sure the DataShuttle is connected to a power source, either an AC Adapter or Keyboard
Adapter. A red light on the board will indicate that power is present.

3. Verify that the software is up to date (a version compatible with the unit you are using). Contact us,
or your software provider.

DataShuttle and DynaRes

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DataShuttle - Technical Notes 2-9

4. Disconnect additional DataShuttles and printers in your setup.

5. Connect the DataShuttle to another parallel port.

6. Remove any additional data acquisition cards from the computer.

7. If possible, install the DataShuttle with another computer to verify its correct operation.

8. Remove other terminate and stay resident (TSR) programs from your system’s AUTOEXEC.BAT
file, temporarily. Also REM out any AUTOEXEC.BAT and CONFIG.SYS lines that relate to a
PCMCIA port, such as device drivers, as these have been known to cause conflicts.

9. Make sure that you plug the DataShuttle in and that power is connected before starting your
computer. Many laptops will deactivate the parallel port at the start-up if nothing is attached to it.

10. Make sure that the Print Manager is not active in the Windows environment when attempting to start
the DataShuttle. Some computers automatically load the Print Manager at startup, and it can interfere
with DASYLab’s ability to communicate with the hardware. Printing is possible while using the
DataShuttle but not during the initial loading of the DASYLab software. Likewise check for lack of
interrupt assignment on parallel port in device manager.

11. Erratic behavior can occur when a parallel port is in ECP modes under early Windows 95 versions.
Change parallel port protocol in BIOS.

12. QuickLog checks for [386Enh]

DEVICE=C:\QLFW\STIDATAQ.386

in System.ini file

13. Increase Minimum Interrupt Timing setting. (consult software manual)

If You Need Customer Support

To help us serve you better, please have the following information ready:

1. Have the part number of your DataShuttle ready.

2. Have the type and version number of the software you’re using.

3. Have your computer’s type, model, and the version of the operating system.

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Troubleshooting: Operation

Hints

It’s essential to have exactly one ground reference per channel. This single connection to ground makes sure
you don’t exceed the common mode range of input.

(More than one connection per channel can lead to ground loops, causing errors or erratic readings.
Connecting the – to the Com terminal provides a single ground. Your sensor might also provide another
ground. If you’re not sure that your sensor is grounded, try connecting the – to Com, and not, and see which
works best.)

Remember that if speed is not critical, selecting the “low noise mode” in software always provides the best
accuracy and resolution with your data acquisition unit.

Operating Qs and As

1. Problem: My unit reads analog inputs wrong.
Action: Make sure the calibration numbers in the non-volatile memory are non-zero
(run EDITCAL to check this). If the figures are correct, try shorting + to – to Com: the unit should
return a reading around 0V.

2. Problem: My unit reads the thermocouple as a very negative temperature.
Action: Verify the connections are secure. Opens read as negative temperature. Make sure use
lowest channel numbers first and scan only connected channels.

3. Problem: My board reads thermocouple input wrong.
Action: Confirm that the CCAL number in the EEPROM matches the number on the terminal panel’s
calibration label.

(If you need to use a general purpose terminal panel – one that doesn’t have a factory CCAL
number – with a thermocouple, you can achieve approximate results by entering a CCAL of 22000.
Then change the figure by about 75 points for each degree C. that you want to raise the temperature.)

4. Problem: My readings are noisy.
Action: Try using the low noise mode (see your software manual for more information).

5. Problem: My digital inputs are “high” with nothing connected to them.
Action: This is normal. The digital inputs are pulled up to about 1.5 volts by leakage from the
LS7407 chips. This is enough to read logic high. You can pull them low with a 470 ohm resistor to
ground.

6. Problem: Can I get any output signal from the digital input terminals?
Action: Yes, you can use an input terminal to drive light loads such as a TTL input.

7. Problem: What should I do with the jumpers connecting the analog input to COM?
Action: In general, it is best to leave them connected as shipped.

8. Problem: My 5V terminal reads only 4.6V.
Action: This is normal. Tolerance is 4.5 to 5V.

9. Problem: There is significant crosstalk
Action: High impedence, greater than 1K, inputs, such as accelerometers require signal conditioning.

10. Problem: My analog output accuracy is poor.
Action: From the DOS command line, or in GO.BAT, run GFIND -C. This calibrates analog outputs.
Note, however, that calibration sends full scale outputs, so it may be necessary to remove any
instruments connected to the outputs.

11. Problem: Errors in Thermocouples on multiple units.

DataShuttle and DynaRes

Action: If thermocouples are connected to metal, object, remove − to common strap on terminals.

11-13-01

DataShuttle - Technical Notes 2-11

Before Calling Customer Support

Check the following key areas to validate whether or not the DataShuttle is operational:

1.

Make sure the AC Adapter is not damaged. To do this, detach the adapter from the DataShuttle,
while leaving it plugged in to the wall outlet. Then measure the voltage between the inside and
outside surfaces of the cylindrical connector. In this no-load condition, the voltage should measure
approximately 9V. If this is not the case, it is likely that the AC Adapter will need to be replaced.
(Polarity )

2.

Check the power section of the DataShuttle. After plugging the AC Adapter back into the
DataShuttle, check to make sure the LED is functioning. If the LED is not lighting up, then there is
likely a problem with the power section of the unit. Contact technical support for further
assistance.

3.

Check the DataShuttle’s internal power supply. To do this, it is necessary to measure four voltage
terminals on the unit itself: the +5V and Vref(6.9V) terminals, found at opposite ends of the
terminal strip next to the passthrough connector, and the +15V and the -12V terminals, which can
be found on the raised section of the DataShuttle called the terminal board. (Please consult the
diagrams on pages 1–5 through 1–7 if you are unable to locate these terminals.)

If you have been installing resistors or capacitors on the analog input auxiliary section,
then it is necessary to remove the terminal board and re-check the +5V and Vref voltages. If, after
removal, these voltages return to normal, it is likely that there is a short-to-ground on the terminal
board. Check the resistor/capacitor installations for such a short and reinstall the board.

If removal does not fix the +5 and -12 voltages, then there is a problem with the DataShuttle’s
internal power supply. Contact technical support for further assistance.

If You Need Customer Support

To help us serve you better, please have the following information ready:

1.

Have the part number of your DataShuttle ready.

2.

Have the type and version number of the software you’re using.

3.

Have your computer’s type, model, and the version of the operating system.

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