Cole-Parmer 18200-40 Instruction Manual
Operating Manual
USB-based
8-channel Thermocouple Input Module
MODEL NO. 18200-40
The 18200-40 is a USB 2.0 full-speed, thermocouple input module that is fully compatible with both USB
1.1 and USB 2.0 ports.
The 18200-40 provides eight differential thermocouple input channels. Eight independent, TTL-compatible
digital I/O channels are provided to monitor TTL-level inputs, communicate with external devices, and to
generate alarms. The digital I/O channels are software programmable for input or output.
With the 18200-40, you can take measurements from type J, K, R, S, T, N, E, and B thermocouples.
The 18200-40 provides two integrated cold junction compensation (CJC) sensors for thermocouple
measurements.
An open thermocouple detection feature lets you detect a broken thermocouple. An on-board
microprocessor automatically linearizes the measurement data.
The 18200-40 is a standalone plug-and-play module which draws power from the USB cable. No external
power supply is required. All configurable options are software programmable.
The 18200-40 is fully software calibrated.
Cole-Parmer Instrument Company
625 East Bunker Court
Vernon Hills, Illinois 60061-1844
(847) 549-7600
(847) 247-2929 (Fax)
800-323-4340
www.coleparmer.com
e-mail: techinfo@coleparmer.com
Document Revision 1, May, 2006
© Copyright 2006 Measurement Computing Corporation, TCR4
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Table of Contents
Preface
About this Operating Manual...............................................................................................................5
What you will learn from this manual ................................................................................................................5
Conventions in this manual ................................................................................................................................5
Where to find more information.........................................................................................................................5
Chapter 1
Introducing the 18200-40......................................................................................................................6
Overview: 18200-40 features .............................................................................................................................6
18200-40 block diagram.....................................................................................................................................7
Software features................................................................................................................................................7
Connecting a 18200-40 to your computer is easy...............................................................................................8
Connecting a 18200-40 to your computer is easy...............................................................................................8
Chapter 2
Installing the 18200-40..........................................................................................................................9
What comes with your 18200-40 shipment? ......................................................................................................9
Hardware .......................................................................................................................................................................... 9
Additional documentation................................................................................................................................................. 9
Unpacking the 18200-40 ..................................................................................................................................10
Unpacking the 18200-40 ..................................................................................................................................10
Installing the software ......................................................................................................................................10
Installing the hardware .....................................................................................................................................10
Configuring the 18200-40.................................................................................................................................10
Calibrating the 18200-40 ..................................................................................................................................10
Chapter 3
Sensor Connections ...........................................................................................................................11
Screw terminal pin out......................................................................................................................................11
Thermocouple input terminals (C0H/C0L to C7H/C7L) .................................................................................................12
Ground terminals (GND) .................................................................................................................................................12
Power terminals (+5V).....................................................................................................................................................12
Digital terminals (DIO0 to DIO7)....................................................................................................................................12
CJC sensors......................................................................................................................................................................12
Thermocouple connections...............................................................................................................................13
Wiring configuration........................................................................................................................................................13
Digital I/O connections.....................................................................................................................................14
Chapter 4
Functional Details ...............................................................................................................................15
Thermocouple measurements ...........................................................................................................................15
Cold junction compensation (CJC)..................................................................................................................................15
Data linearization.............................................................................................................................................................15
Open-thermocouple detection (OTD) ..............................................................................................................................15
USB connector..................................................................................................................................................16
LED ..................................................................................................................................................................16
Power................................................................................................................................................................16
Chapter 5
Specifications......................................................................................................................................17
Analog input section.........................................................................................................................................17
Channel configurations.....................................................................................................................................17
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18200-40 Operating Manual
Accuracy...........................................................................................................................................................18
Thermocouple measurement accuracy.............................................................................................................................18
Throughput rate ................................................................................................................................................18
Digital input/output...........................................................................................................................................19
Memory ............................................................................................................................................................19
Microcontroller.................................................................................................................................................19
USB +5V voltage .............................................................................................................................................19
Power................................................................................................................................................................19
USB specifications ...........................................................................................................................................20
Environmental ..................................................................................................................................................20
Mechanical .......................................................................................................................................................20
Screw terminal connector type and pin out.......................................................................................................20
Screw terminal pin out.....................................................................................................................................................21
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Preface
About this Operating Manual
What you will learn from this manual
This manual explains how to install, configure, and use the 18200-40 so that you get the most out of its USBbased temperature measurement features.
This manual also refers you to related documents available on our web site, and to technical support resources.
Conventions in this manual
For more information on …
Text presented in a box signifies additional information and helpful hints related to the subject matter you are
reading.
Caution! Shaded caution statements present information to help you avoid injuring yourself and others,
damaging your hardware, or losing your data.
<#:#> Angle brackets that enclose numbers separated by a colon signify a range of numbers, such as those assigned
to registers, bit settings, etc.
bold text Bold text is used for the names of objects on the screen, such as buttons, text boxes, and check boxes. For
example:
1. Insert the disk or CD and click the OK button.
italic text Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase. For
example:
The InstaCal® installation procedure is explained in the Quick Start Guide.
Never touch the exposed pins or circuit connections on the board.
Where to find more information
The following electronic documents provide helpful information relevant to the operation of the 18200-40.
! Cole-Parmer's Specifications: 18200-40 (the PDF version of the Electrical Specification Chapter in this
guide) is available on our web site at www.coleparmer.com/catalog/MoreInfo/18200-40-spec.pdf
! Cole-Parmer's Quick Start Guide is available on our web site at
www.coleparmer.com/catalog/MoreInfo/CP-Quick-Start.pdf
! Cole-Parmer's Guide to Signal Connections is available on our web site at
www.coleparmer.com/catalog/MoreInfo/CPsignals.pdf
! Cole-Parmer's Universal Library User's Guide is available on our web site at
www.coleparmer.com/catalog/MoreInfo/sm-ul-user-guide.pdf
! Cole-Parmer's Universal Library Function Reference is available on our web site at
www.coleparmer.com/catalog/MoreInfo/sm-ul-functions.pdf
! Cole-Parmer's Universal Library for LabVIEW
www.coleparmer.com/catalog/MoreInfo/SM-UL-LabVIEW.pdf
18200-40 Operating Manual (this document) is also available on our web site at
www.coleparmer.com/cpusbdaq1/18200-40.pdf
™
User’s Guide is available on our web site at
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Chapter 1
Introducing the 18200-40
Overview: 18200-40 features
This manual contains all of the information you need to connect the 18200-40 to your computer and to the
signals you want to measure.
The 18200-40 is a USB 2.0 full-speed, thermocouple input module that is supported under popular Microsoft®
Windows® operating systems. The 18200-40 is fully compatible with both USB 1.1 and USB 2.0 ports.
The 18200-40 provides eight differential thermocouple input channels. Eight independent, TTL-compatible
digital I/O channels are provided to monitor TTL-level inputs, communicate with external devices, and to
generate alarms. The digital I/O channels are software programmable for input or output.
With the 18200-40, you can take measurements from type J, K, R, S, T, N, E, and B thermocouples.
The 18200-40 provides two integrated cold junction compensation (CJC) sensors for thermocouple
measurements.
An open thermocouple detection feature lets you detect a broken thermocouple. An on-board microprocessor
automatically linearizes the measurement data.
The 18200-40 is a standalone plug-and-play module which draws power from the USB cable. No external
power supply is required. All configurable options are software programmable.
The 18200-40 is fully software calibrated.
6
18200-40 Operating Manual Introducing the 18200-40
18200-40 block diagram
18200-40 functions are illustrated in the block diagram shown here.
Precision
5V Ref.
DIO
USB
USB
Micro
USB
+5V
I/O
Isolator
Isolated
DC/DC
500 V
Isolation
Barrier
8
Isolated
Micro
Te mp
sensor
(+12)
(-12)
Figure 1-1. 18200-40 functional block diagram
SPI
24-bit A/D
(CH0, CH1)
24-bit A/D
(CH2, CH3)
24-bit A/D
(CH4, CH5)
24-bit A/D
(CH6, CH7)
Input
mux.
Input
mux.
CJC
CH0-3
Input
mux.
Input
mux.
CJC
CH4-7
Screw terminalScrew terminalScrew terminal
Software features
For information on the features of InstaCal and the other software included with your 18200-40, refer to the
Quick Start Guide that shipped with your device. The Quick Start Guide is also available in PDF at
www.coleparmer.com/catalog/MoreInfo/CP-Quick-Start.pdf
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