AI-EXP48
User's Guide
Document Revision 2A, March, 2009
© Copyright 2009, Measurement Computing Corporation
HM AI-EXP48.doc
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Measurement Computing Corporation, InstaCal, Universal Library, and the Measurement Computing logo are
either trademarks or registered trademarks of Measurement Computing Corporation. Refer to the Copyrights &
Trademarks section on mccdaq.com/legal for more information about Measurement Computing trademarks.
Other product and company names mentioned herein are trademarks or trade names of their respective
companies.
© 2001 Measurement Computing Corporation. All rights reserved. No part of this publication may be
reproduced, stored in a retrieval system, or transmitted, in any form by any means, electronic, mechanical, by
photocopying, recording, or otherwise without the prior written permission of Measur
Corporation.
Notice
Measurement Computing Corporation does not authorize any Measurement Computing Corporation product for
use in life support systems and/or devices without prior written consent from Measurement Computing
Corporation. Life support devices/systems are devices or systems that, a) are intended for surgical implantation
into the body, or b) support or sustain life and whose failure to perform can be reasonably expected to result in
injury. Measurement Computing Corporation products are not designed with the components required, and are
not subject to the testing required to ensure a level of reliability suitable for the treatment and diagnosis of
people.
ement Computing
3
Table of Contents
Preface
About this User’s Guide ....................................................................................................................... 5
What you will learn from this user’s guide ......................................................................................................... 5
Conventions in this user’s guide ......................................................................................................................... 5
Where to find more information ......................................................................................................................... 5
Chapter 1
Introducing the AI-EXP48 ..................................................................................................................... 6
Overview: AI-EXP48 features ............................................................................................................................ 6
Software features ................................................................................................................................................ 6
Chapter 2
Installing the AI-EXP48 ......................................................................................................................... 7
What comes with your AI-EXP48 shipment? ..................................................................................................... 7
Hardware .......................................................................................................................................................................... 7
Optional components ........................................................................................................................................................ 7
Additional documentation ................................................................................................................................................. 7
Unpacking the AI-EXP48 ................................................................................................................................... 7
Connecting to the parent A/D device with the DSUB25 expansion connector................................................... 8
Connecting the device for I/O operations ......................................................................................................... 9
User connectors................................................................................................................................................................9
Screw terminal pin out .....................................................................................................................................................10
Expansion connector ........................................................................................................................................................11
Cabling .............................................................................................................................................................................12
Associating CJC channels with thermocouple channels ................................................................................... 12
Chapter 3
Specifications ...................................................................................................................................... 13
Analog input ..................................................................................................................................................... 13
Accuracy ..........................................................................................................................................................................13
Thermocouples ................................................................................................................................................................13
Power consumption .......................................................................................................................................... 14
Environmental .................................................................................................................................................. 14
Mechanical ....................................................................................................................................................... 14
User connectors ................................................................................................................................................ 14
Declaration of Conformity .................................................................................................................. 17
4
About this User’s Guide
What you will learn from this user’s guide
This user’s guide explains how to install, configure, and use the AI-EXP48 so that you get the most out of its
analog input features.
This user’s guide also refers you to related documents available on our web site, and to technical support
resources.
Conventions in this user's guide
For more information
Text presented in a box signifies additional information related to the subject matter.
Caution! Shaded caution statements present information to help you avoid injuring yourself and others,
damaging your hardware, or losing your data.
Preface
bold text
italic text
Bold text is used for the names of objects on a screen, such as buttons, text boxes, and check boxes.
Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase.
Where to find more informati on
Additional information about AI-EXP48 hardware is available on our website at www.mccdaq.com. You can
also contact Measurement Computing Corporation with specific questions.
Knowledgebase: kb.mccdaq.com
Tech support form: www.mccdaq.com/support/support_form.aspx
Email: techsupport@mccdaq.com
Phone: 508-946-5100 and follow the instructions for reaching Tech Support
For international customers, contact your local distributor. Refer to the International Distributors section on our
website at
www.mccdaq.com/International.
5
Chapter 1
Introducing the AI-EXP48
Overview: AI-EXP48 features
The AI-EXP48 is an expansion module used to add 48 single-ended or 24 differential analog inputs to
compatible hardware, such as the USB-1616HS Series devices.
The AI-EXP48 connects to the parent device via a 25-pin expansion connector. The AI-EXP48 supports all of
the analog input and temperature input capabilities of the parent device.
The AI-EXP48 can measure up to 48 channels of voltage or up to 24 channels of temperature. Each input
channel is software configurable for either voltage or thermocouple. The analog inputs are provided on six rows
of removable screw terminals.
The voltage measurement speed is the same as the parent device. When measuring thermocouples, the parent
device must be configured for differential inputs.
The AI-EXP48 receives power from the parent device. An external power supply may be required to supply
sufficient power to both devices.
Software features
For information on the features of InstaCal and the other software included with your AI-EXP48, refer to the
Quick Start Guide that shipped with your device. The Quick Start Guide is also available in PDF at
Check www.mccdaq.com/download.htm for the latest software version.
6
Installing the AI-EXP48
What comes with your AI-EXP48 shipment?
The following items are shipped with the AI-EXP48.
Hardware
AI-EXP48
Clips (2) used to lock the AI-EXP48 and parent device together when connected directly
Chapter 2
Optional components
You can connect the AI-EXP48 to a USB-1616HS series parent device using the optional CA-96A cable.
CA-96 cable
Additional documentation
In addition to this hardware user's guide, you should also receive the Quick Start Guide (available in PDF at
the software you received with your AI-EXP48 and information regarding installation of that software. Please
read this booklet completely before installing any software or hardware.
Unpacking the AI-EXP48
As with any electronic device, you should take care while handling to avoid damage from static
electricity. Before removing the AI-EXP48 from its packaging, ground yourself using a wrist strap or by simply
touching the computer chassis or other grounded object to eliminate any stored static charge.
If any components are missing or damaged, notify Measurement Computing Corporation immediately by
phone, fax, or e-mail:
Phone: 508-946-5100 and follow the instructions for reaching Tech Support.
Fax: 508-946-9500 to the attention of Tech Support
Email: techsupport@mccdaq.com
7
AI-EXP48 User's Guide Installing the AI-EXP48
Connecting to the parent A/D device with the DSUB25 expansion
connector
You can use the 25-pin expansion connector to connect to a compatible parent device, such as a USB-1616HS
Series device.
You can either mate the expansion connectors directly or use the optional expansion cable to connect the two
devices. Do the following:
1. Disconnect the USB cable from the parent device.
If the parent device is connected to an external power supply, remove the external power cable from the
device.
2. Connect the two devices together by one of the following methods:
o Direct connect method: The parent device must have a female DSUB25 expansion connector to use
this method. Push the expansion module's DSUB25 connector into the DSUB25 connector on the
parent device. Lock the two devices together by inserting the two clips provided (one per side).
The image below shows the AI-EXP48 directly connected a USB-1616HS-4.
Figure 1. Direct connect method
o Cable method: Connect the appropriate cable (not included) from the DSUB25 connector on the AI-
EXP48 to the expansion connector on the parent device. The image below shows the AI-EXP48
connected to a USB-1616HS-4 via the CA-96A cable.
Figure 2. Cable method
7
AI-EXP48 User's Guide Installing the AI-EXP48
Connector type
Six banks of removable screw-terminal blocks
25-pin male DSUB connector (for connection to parent device)
Wire gauge range (screw terminals)
14 AWG to 30 AWG
3. Connect the external power supply, if used, to the power input port of the parent device, and then plug it
into an AC outlet.
Note: Connecting external power to the device before connecting the USB cable to the computer allows the
parent device to inform the host computer upon connection of the USB cable that the device requires
minimum power from the computer's USB port.
4. Connect the USB cable from the parent device to the host computer's USB port.
Connect to a USB 2.0 high speed hub to achieve the highest transfer rate (480 Mbps). When connected to a
USB 1.1 full-speed port, the transfer rate is limited to 12 Mbps.
Connecting the device for I/O operations
User connectors
The following table lists the device connectors and compatible hardware for the AI-EXP48.
User connectors and hardware
9
AI-EXP48 User's Guide Installing the AI-EXP48
Terminal
block
Device
label
(Signal description)
Device
label
(Signal description)
Terminal
block
Analog In
TB1
A
(Analog common)
63L
(CH 63)
Analog In
TB6
16H
(CH 16)
55H
(CH 55)
24L
(CH 24)
A
(Analog common)
A
(Analog common)
62L
(CH 62)
17H
(CH 17)
54H
(CH 54)
25L
(CH 25)
A
Analog common
A
(Analog common)
61L
(CH 61)
18H
(CH 18)
53H
(CH 53)
26L
(CH 26)
A
(Analog common)
A
(Analog common)
60L
(CH 60)
19H
(CH 19)
52H
(CH 52)
27L
(CH 27)
A
(Analog common)
Analog In
TB2
A
(Analog common)
59L
(CH 59)
Analog in
TB5
20H
(CH 20)
51H
(CH 51)
28L
(CH 28)
A
(Analog common)
A
(Analog common)
58L
(CH 58)
21H
(CH 21)
50H
(CH 50)
29L
(CH 29)
A
(Analog common)
A
(Analog common)
57L
(CH 57)
22H
(CH 22)
49H
(CH 49)
30L
(CH 30)
A
(Analog common)
A
(Analog common)
56L
(CH 56)
23H
(CH 23)
48H
(CH 48)
31L
(CH 31)
A
(Analog common)
Analog In
TB3
A
(Analog common)
47L
(CH 47)
Analog In
TB4
32H
(CH 32)
39H
(CH 39)
40L
(CH 40)
A
(Analog common)
A
(Analog common)
46L
(CH 46)
33H
(CH 33)
38H
(CH 38)
41L
(CH 41)
A
(Analog common)
A
(Analog common)
45L
(CH 45)
34H
(CH 34)
37H
(CH 37)
42L
(CH 42)
A
(Analog common)
A
(Analog common)
44L
(CH 44)
35H
(CH 35)
36H
(CH 36)
43L
(CH 43)
A
(Analog common)
Screw terminal pin out
Single-ended mode pin out
10
AI-EXP48 User's Guide Installing the AI-EXP48
Terminal
block
Device
label
(Signal description)
Device
label
(Signal description)
Terminal
block
Analog In
TB1
A
(Analog common)
63L
(CH 31 LO)
Analog In
TB6
16H
(CH 8 HI)
55H
(CH 31 HI)
24L
(CH 8 LO)
A
(Analog common)
A
(Analog common)
62L
(CH 30 LO)
17H
(CH 9 HI)
54H
(CH 30 HI)
25L
(CH 9 LO)
A
Analog common
A
(Analog common)
61L
(CH 29 LO)
18H
(CH 10 HI)
53H
(CH 29 HI)
26L
(CH 10 LO)
A
(Analog common)
A
(Analog common)
60L
(CH 28 LO)
19H
(CH 11 HI)
52H
(CH 28 HI)
27L
(CH 11 LO)
A
(Analog common)
Analog In
TB2
A
(Analog common)
59L
(CH 27 LO)
Analog in
TB5
20H
(CH 12 HI)
51H
(CH 27 HI)
28L
(CH 12 LO)
A
(Analog common)
A
(Analog common)
58L
(CH 26 LO)
21H
(CH 13 HI)
50H
(CH 26 HI)
29L
(CH 13 LO)
A
(Analog common)
A
(Analog common)
57L
(CH 25 LO)
22H
(CH 14 HI)
49H
(CH 25 HI)
30L
(CH 14 LO)
A
(Analog common)
A
(Analog common)
56L
(CH 24 LO)
23H
(CH 15 HI)
48H
(CH 24 HI)
31L
(CH 15 LO)
A
(Analog common)
Analog In
TB3
A
(Analog common)
47L
(CH 23 LO)
Analog In
TB4
32H
(CH 16 HI)
39H
(CH 23 HI)
40L
(CH 16 LO)
A
(Analog common)
A
(Analog common)
46L
(CH 22 LO)
33H
(CH 17 HI)
38H
(CH 22 HI)
41L
(CH 17 LO)
A
(Analog common)
A
(Analog common)
45L
(CH 21 LO)
34H
(CH 18 HI)
37H
(CH 21 HI)
42L
(CH 18 LO)
A
(Analog common)
A
(Analog common)
44L
(CH 20 LO)
35H
(CH 19 HI)
36H
(CH 20 HI)
43L
(CH 19 LO)
A
(Analog common)
1 13
14 25
Differential mode pin out
Expansion connector
The AI-EXP48 has a 25-pin male DSUB connector that connects directly to the 25-pin female DSUB connector
on compatible hardware or through the appropriate cable to compatible hardware.
Figure 3. 25-pin male DSUB expansion connector
11
AI-EXP48 User's Guide Installing the AI-EXP48
CJC channels
TC channels
CJC6
TC8 through TC11
CJC7
TC12 through TC15
CJC8
TC16 through TC19
CJC9
TC20 through TC23
CJC10
TC24 through TC27
CJC11
TC28 through TC31
Cabling
If the parent device has a 25-pin expansion connector, you can use the CA-96A cable to connect with the AIEXP48.
Figure 4. CA-96A cable
Information on signal connections
General information regarding signal connection and configuration is available in the Guide to Signal
Connections (available at www.mccdaq.com/signals/signals.pdf).
Associating CJC channels with thermocouple channels
TC channels must immediately follow their associated CJC channels in the channel array. For accurate
thermocouple measurements, associate CJC channels with the TC channels as listed below.
When measuring thermocouples, the parent device must be configured for differential inputs.
12
Specifications
Number of channels
48 single-ended/24 differential inputs
Voltage measurement speed
1 µs per channel
Input ranges, software or sequencer programmable
Bipolar: ±10 V, ±5 V, ±2 V, ±1 V , ±0.5 V, ±0.2 V, ±0.1 V,
universal thermocouple
Signal to noise and distortion
72 dB typical for ±10 V range, 1 kHz fundamental
Total harmonic distortion
-80 dB typical for ±10 V range, 1 kHz fundamental
Bias current
40 pA typical (0 °C to 35 °C)
Crosstalk
-75 dB DC to 60 Hz; -65 dB @ 10 kHz, typical
Input impedance
10 MΩ single-ended, 20 MΩ differential
Over-voltage protection
±30 V
Voltage range
(note 1)
Accuracy
±(% of reading + % range)
23°C ±10 °C, 1 year
Temperature coefficient
±(ppm of reading + ppm range)/°C
Noise (cts
RMS) (note 2)
-10 V to 10 V
0.031% + 0.008%
14 + 8
2.0
-5 V to 5 V
0.031% + 0.009%
14 + 9
3.0
-2 V to 2 V
0.031% + 0.010%
14 + 10
2.0
-1 V to 1 V
0.031% + 0.02%
14 + 12
3.5
-500 mV to 500 mV
0.031% + 0.04%
14 + 18
5.5
-200 mV to 200 mV
0.036% + 0.05%
14 + 12
8.0
-100 mV to 100 mV
0.042% + 0.10%
14 + 18
14.0
TC type
Temperature range (°C)
Accuracy (±°C)
Noise typical (±°C)
J
-200 to + 760
1.7
0.2 K -200 to + 1200
1.8
0.2 T -200 to + 400
1.8
0.2 E -270 to + 650
1.7
0.2 R -50 to + 1768
4.8
1.5
S
-50 to + 1768
4.7
1.5
N
-270 to + 1300
2.7
0.3 B +300 to + 1400
3.0
1.0
Typical for 25 °C unless otherwise specified.
Specifications in italic text are guaranteed by design.
Analog input
Table 1. Analog input specifications
Accuracy
Table 2. Analog input accuracy specifications
Chapter 3
Note 1: Specifications assume differential input single-channel scan, 1 MHz scan rate, unfiltered,
CMV=0.0 V, 30 minute warm-up, exclusive of noise, -FS to +FS.
Note 2: Noise reflects 10,000 samples at 1 MHz, typical, differential short
Thermocouples
Note 3: Assumes 16384 oversampling applied, CMV = 0.0V, 60 minute warm-up, still environment, and
25 °C ambient temperature; excludes thermocouple error; TCin = 0° C for all types except B
(1000 °C)
Table 3. TC types and accuracy (Note 3)
13
AI-EXP48 User's Guide Specifications
Power consumption (per board)
400 mW maximum (supplied by parent product, such as USB-1616HS series)
Operating temperature range
-30 °C to +70 °C
Storage temperature range
-40 °C to +80 °C
Relative humidity
0 to 95% non-condensing
Vibration
MIL STD 810E, category 1 and 10
Dimensions
269 mm (W) x 92 mm (D) x 45 mm (H ) (10.6" x 3.6" x 1.6")
Weight
400 g (0.88 lbs)
Connector type
Six banks of removable screw-terminal blocks
Wire gauge range
14 AWG to 30 AWG
Communications connector
25-pin DSUB, male
Compatible cable
CA-96A
(also mates directly with USB-1616HS series products)
Power consumption
Table 4. Power consumption specifications
Environmental
Table 5. Environmental specifications
Mechanical
Table 6. Mechanical specifications
User connectors
Table 7. Screw terminal connector specifications
Table 8. Expansion connector specifications
14
AI-EXP48 User's Guide Specifications
Terminal block
Device label
(Signal description)
Device label
(Signal description)
Terminal block
Analog In
A
(Analog common)
63L
(CH 63)
Analog In
16H
(CH 16)
55H
(CH 55)
24L
(CH 24)
A
(Analog common)
A
(Analog common)
62L
(CH 62)
17H
(CH 17)
54H
(CH 54)
25L
(CH 25)
A
Analog common
A
(Analog common)
61L
(CH 61)
18H
(CH 18)
53H
(CH 53)
26L
(CH 26)
A
(Analog common)
A
(Analog common)
60L
(CH 60)
19H
(CH 19)
52H
(CH 52)
27L
(CH 27)
A
(Analog common)
Analog In
A
(Analog common)
59L
(CH 59)
Analog in
20H
(CH 20)
51H
(CH 51)
28L
(CH 28)
A
(Analog common)
A
(Analog common)
58L
(CH 58)
21H
(CH 21)
50H
(CH 50)
29L
(CH 29)
A
(Analog common)
A
(Analog common)
57L
(CH 57)
22H
(CH 22)
49H
(CH 49)
30L
(CH 30)
A
(Analog common)
A
(Analog common)
56L
(CH 56)
23H
(CH 23)
48H
(CH 48)
31L
(CH 31)
A
(Analog common)
Analog In
A
(Analog common)
47L
(CH 47)
Analog In
32H
(CH 32)
39H
(CH 39)
40L
(CH 40)
A
(Analog common)
A
(Analog common)
46L
(CH 46)
33H
(CH 33)
38H
(CH 38)
41L
(CH 41)
A
(Analog common)
A
(Analog common)
45L
(CH 45)
34H
(CH 34)
37H
(CH 37)
42L
(CH 42)
A
(Analog common)
A
(Analog common)
44L
(CH 44)
35H
(CH 35)
36H
(CH 36)
43L
(CH 43)
A
(Analog common)
Table 9. Single-ended mode pin out
15
AI-EXP48 User's Guide Specifications
Terminal block
Device label
(Signal description)
Device label
(Signal description)
Terminal block
Analog In
A
(Analog common)
63L
(CH 31 LO)
Analog In
16H
(CH 8 HI)
55H
(CH 31 HI)
24L
(CH 8 LO)
A
(Analog common)
A
(Analog common)
62L
(CH 30 LO)
17H
(CH 9 HI)
54H
(CH 30 HI)
25L
(CH 9 LO)
A
Analog common
A
(Analog common)
61L
(CH 29 LO)
18H
(CH 10 HI)
53H
(CH 29 HI)
26L
(CH 10 LO)
A
(Analog common)
A
(Analog common)
60L
(CH 28 LO)
19H
(CH 11 HI)
52H
(CH 28 HI)
27L
(CH 11 LO)
A
(Analog common)
Analog In
A
(Analog common)
59L
(CH 27 LO)
Analog in
20H
(CH 12 HI)
51H
(CH 27 HI)
28L
(CH 12 LO)
A
(Analog common)
A
(Analog common)
58L
(CH 26 LO)
21H
(CH 13 HI)
50H
(CH 26 HI)
29L
(CH 13 LO)
A
(Analog common)
A
(Analog common)
57L
(CH 25 LO)
22H
(CH 14 HI)
49H
(CH 25 HI)
30L
(CH 14 LO)
A
(Analog common)
A
(Analog common)
56L
(CH 24 LO)
23H
(CH 15 HI)
48H
(CH 24 HI)
31L
(CH 15 LO)
A
(Analog common)
Analog In
A
(Analog common)
47L
(CH 23 LO)
Analog In
32H
(CH 16 HI)
39H
(CH 23 HI)
40L
(CH 16 LO)
A
(Analog common)
A
(Analog common)
46L
(CH 22 LO)
33H
(CH 17 HI)
38H
(CH 22 HI)
41L
(CH 17 LO)
A
(Analog common)
A
(Analog common)
45L
(CH 21 LO)
34H
(CH 18 HI)
37H
(CH 21 HI)
42L
(CH 18 LO)
A
(Analog common)
A
(Analog common)
44L
(CH 20 LO)
35H
(CH 19 HI)
36H
(CH 20 HI)
43L
(CH 19 LO)
A
(Analog common)
Table 10. Differential mode pin out
16
Declaration of Conformity
Manufacturer: Measurement Computing Corporation
Address: 10 Commerce Way
Suite 1008
Norton, MA 02766
USA
Category: Electrical equipment for measurement, control and laboratory use.
Measurement Computing Corporation declares under sole responsibility that the product
AI-EXP48
to which this declaration relates is in conformity with the relevant provisions of the following standards or other
documents:
EC EMC Directive 2004/108/EC: Electromagnetic Compatibility, EN 61326-1:2006, (IEC 61326-1:2005)
Emissions: Group 1, Class A
EN 55022 (1993)/CISPR 22: Radiated and Conducted emissions.
Immunity: EN 61326-1:2006, (IEC 61326-1:2005)
IEC 61000-4-2 (2001): Electrostatic Discharge immunity.
IEC 61000-4-3 (2002): Radiated Electromagnetic Field immunity.
IEC 61000-4-4 (2004): Electric Fast Transient Burst immunity.
IEC 61000-4-5 (2001): Fast Surge immunity.
IEC 61000-4-6 (2003): Radio Frequency Common Mode immunity.
To maintain the safety, emission, and immunity standards of this declaration, the following conditions must be
met.
The host computer, peripheral equipment, power sources, and expansion hardware must be CE compliant.
Equipment must be operated in a controlled electromagnetic environment as defined by Standards EN
61326-1:2006, or IEC 61326-1:2005.
Shielded wires must be used for all I/Os and must be less than 3 meters (9.75 feet) in length. Clips must be used with
the AI-EXP48.
The host computer must be properly grounded.
The host computer must be USB2.0 compliant and IOtech USB cables (CA-179-x) must be used.
A protective ESD wrist strap should be used when connecting or disconnecting leads from screw terminal blocks.
Alternatively, unplug the unit from the host computer when making connections. Protective housings (IOtech p/n
CN-241-12) can be placed over the removable terminal blocks to protect signals from ESD during operation.
If external DC power is needed, a TR-2U power supply must be used.
Note: Data acquisition equipment may exhibit noise or increased offsets when exposed to high RF fields
(>1V/m) or transients.
Declaration of Conformity based on tests conducted by Smith Electronics, Inc., Cleveland, OH 44141, USA in
December, 2005. Test records are outlined in Smith Electronics Test Report “Personal Daq/3000 Series with
PDQ30 Expansion Module” and “PDAQ3000-PDQ30 Addenda”. Further testing was conducted by Chomerics
Test Services, Woburn, MA. 01801, USA in January, 2009. Test records are outlined in Chomerics Test report
#EMI5245.09.
We hereby declare that the equipment specified conforms to the above Directives and Standards.
Carl Haapaoja, Director of Quality Assurance
Measurement Computing Corporation
10 Commerce Way
Suite 1008
Norton, Massachusetts 02766
(508) 946-5100
Fax: (508) 946-9500
E-mail: info@mccdaq.com
www.mccdaq.com
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