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Measurement Computing USB-5201 User Manual

Usb-based 8-channel thermocouple input device and data logger
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Summary of Contents for Measurement Computing USB-5201

  • Page 2 USB-5201 USB-based 8-Channel Thermocouple Input Device and Data Logger User's Guide Document Revision 7, June, 2008 © Copyright 2008, Measurement Computing Corporation...
  • Page 3 Your new Measurement Computing product comes with a fantastic extra — Management committed to your satisfaction! Refer to www.mccdaq.com/execteam.html for the names, titles, and contact information of each key executive at Measurement Computing. Thank you for choosing a Measurement Computing product—and congratulations! You own the finest, and you can now enjoy the protection of the most comprehensive warranties and unmatched phone tech support.
  • Page 4 Trademark and Copyright Information TracerDAQ, Universal Library, Harsh Environment Warranty, Measurement Computing Corporation, and the Measurement Computing logo are either trademarks or registered trademarks of Measurement Computing Corporation. Windows, Microsoft, and Visual Studio are either trademarks or registered trademarks of Microsoft Corporation LabVIEW is a trademark of National Instruments.

  • Page 5: Table Of Contents

    Table of Contents Preface About this User’s Guide ........................7 What you will learn from this user’s guide ......................7 Conventions in this user’s guide ......................... 7 Where to find more information ......................... 7 Chapter 1 Introducing the USB-5201 ........................8 Overview: USB-5201 features ..........................
  • Page 6 USB-5201 User's Guide Disconnecting the USB-5201 from the computer ..................... 21 Transferring binary data after a logging session ....................21 Converting binary data after a logging session ....................21 Chapter 5 Specifications ............................22 Analog input section ............................22 Channel configurations ............................. 22 Accuracy ................................

  • Page 7: Preface

    MCC's Universal Library Function Reference is available on our web site at www.mccdaq.com/PDFmanuals/sm-ul-functions.pdf. ™  User’s Guide is available on our web site at MCC's Universal Library for LabVIEW www.mccdaq.com/PDFmanuals/SM-UL-LabVIEW.pdf. USB-5201 User's Guide (this document) is also available on our web site at www.mccdaq.com/PDFmanuals/USB-5201.pdf.

  • Page 8: Introducing The Usb-5201

    Chapter 1 Introducing the USB-5201 Overview: USB-5201 features This user's guide contains all of the information you need to connect the USB-5201 to your computer and to the signals you want to measure. ® The USB-5201 is a USB 2.0 full-speed, thermocouple input device that is supported under popular Microsoft ®...

  • Page 9: Usb-5201 Block Diagram

    USB-5201 User's Guide Introducing the USB-5201 USB-5201 block diagram USB-5201 functions are illustrated in the block diagram shown here. External power required for data logging operations Precision 5V Ref. Ext. Pwr. (for data 24-bit A/D (PC) Input logging) (CH0, CH1) mux.

  • Page 10: Connecting A Usb-5201 To Your Computer Is Easy

    USB-5201 User's Guide Introducing the USB-5201 Connecting a USB-5201 to your computer is easy Installing a data acquisition device has never been easier.  The USB-5201 relies upon the Microsoft Human Interface Device (HID) class drivers. The HID class drivers ship with every copy of Windows that is designed to work with USB ports. We use the Microsoft HID because it is a standard, and its performance delivers full control and maximizes data transfer rates for your USB-5201.

  • Page 11: Installing The Usb-5201

    Chapter 2 Installing the USB-5201 What comes with your USB-5201 shipment? The following items are shipped with the USB-5201. Hardware The following items should be included with your shipment.  USB-5201 with memory card  USB cable (2 meter length) ...

  • Page 12: Additional Documentation

    USB-5201 User's Guide Installing the USB-5201 Additional documentation In addition to this hardware user's guide, you should also receive the Quick Start Guide (available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf). This booklet supplies a brief description of the software you received with your USB-5201 and information regarding installation of that software. Please read this booklet completely before installing any software or hardware.

  • Page 13: Configuring The Usb-5201

    USB-5201 User's Guide Installing the USB-5201 If the LED turns off If the LED is lit but then turns off, the computer has lost communication with the USB-5201. To restore communication, disconnect the USB cable from the computer, and then reconnect it. This should restore communication, and the LED should turn back on.

  • Page 14: Chapter 3 Sensor Connections

    Chapter 3 Sensor Connections The USB-5201 supports type types J, K, R, S, T, N, E, and B thermocouples. Thermocouple selection The thermocouple type you select depends on your application needs. Review the temperature ranges and accuracies of each type to determine which is best suited for your application. Screw terminal pin out The USB-5201 has four rows of screw terminals —...

  • Page 15: Thermocouple Input Terminals (C0H/C0L To C7H/C7L)

    USB-5201 User's Guide Sensor Connections USB-5201 screw terminal descriptions Signal Name Pin Description Signal Name Pin Description RSVD Reserved, Do Not Use RSVD Reserved, Do Not Use Not connected Ground CH0 sensor input (+) CH7 sensor input (-) CH0 sensor input (-)

  • Page 16: Cjc Sensors

    USB-5201 User's Guide Sensor Connections CJC sensors The USB-5201 has two built in high-resolution temperature sensors. One sensor is located on the right side of the package, and one sensor is located on the left side. Thermocouple connections A thermocouple consists of two dissimilar metals that are joined together at one end. When the junction of the metals is heated or cooled, a voltage is produced that correlates to temperature.

  • Page 17: Digital I/O Connections

    USB-5201 User's Guide Sensor Connections Digital I/O connections You can connect up to eight digital I/O lines to the screw terminals labeled . You can configure DIO0 DIO7 each digital bit for either input or output. All digital I/O lines are pulled up to +5 V with a 47 kΩ resistor (default).

  • Page 18: Chapter 4 Functional Details

    Chapter 4 Functional Details Thermocouple measurements A thermocouple consists of two dissimilar metals that are joined together at one end. When the junction of the metals is heated or cooled, a voltage is produced that correlates to temperature. The USB-5201 hardware level-shifts the thermocouple’s output voltage into the A/D’s common mode input range by applying +2.5 V to the thermocouple’s low side at the C#L input.

  • Page 19: External Components

    USB-5201 User's Guide Functional Details External components The USB-5201 has the following external components, as shown in Figure 5.  Screw terminals  USB connector   CompactFlash slot with memory card Screw terminal Pins 27 to 52 Screw terminal...

  • Page 20: Compactflash ® Memory Card Slot

    USB-5201 User's Guide Functional Details LED function when the USB-5201 is connected to an active USB port LED Illumination Indication Steady green The USB-5201 is connected to a computer or external USB hub. Blinks continuously Data is being transferred. Upon connection, the LED should flash a few times and then remain lit (indicates a successful installation).

  • Page 21: External Power Supply

    USB-5201 User's Guide Functional Details External power supply The external power supply is used to power the USB-5201 during data logging operations. This power supply is a 2.5 W USB power adapter. Disconnecting the USB-5201 from the computer You don't need to shut down your computer to disconnect the USB-5201. Refer to the instructions below when disconnecting the USB-5201 from your computer's USB port.

  • Page 22: Chapter 5 Specifications

    Chapter 5 Specifications Typical for 25 °C unless otherwise specified. Specifications in italic text are guaranteed by design. Analog input section Table 1. Generic analog input specifications Parameter Conditions Specification A/D converters Four dual 24-bit, Sigma-Delta type Number of channels 8 differential Input isolation 500 VDC minimum between field wiring and...

  • Page 23: Accuracy

    USB-5201 User's Guide Specifications Accuracy Thermocouple measurement accuracy Table 3. Thermocouple accuracy specifications, including CJC measurement error Sensor Type Maximum error Typical error Temperature range ±1.499 °C ±0.507 °C -210 to 0 °C ±0.643 °C ±0.312 °C 0 to 1200 °C ±1.761 °C...

  • Page 24: Digital Input/Output

    USB-5201 User's Guide Specifications Note 6: The analog inputs are configured to run continuously. Each channel is sampled twice per second. The maximum latency between when a sample is acquired and the temperature data is provided by the USB unit is approximately 0.5 seconds. Throughput to CompactFlash memory card is limited to 1 S/s per channel.

  • Page 25: Microcontroller

    USB-5201 User's Guide Specifications Microcontroller Table 8. Microcontroller specifications Type Two high performance 8-bit RISC microcontrollers Data Logging Table 9. Data logging specifications Standalone power USB Power Adapter supply 2.5 Watt USB Adapter with Interchangeable Plugs (Includes Plug for USA)

  • Page 26: Real Time Clock

    USB-5201 User's Guide Specifications Real time clock Table 10. Real time clock specifications Battery backup CR-2032 lithium coin cell, replaceable Accuracy ±1 minute per month USB +5V voltage Table 11. USB +5V voltage specifications Parameter Conditions Specification USB +5V (VBUS) input voltage range 4.75 V min.

  • Page 27: Usb Specifications

    USB-5201 User's Guide Specifications USB specifications Table 13. USB specifications USB device type USB 2.0 (full-speed) Device compatibility USB 1.1, USB 2.0 Self-powered, 500 mA consumption max USB cable type A-B cable, UL type AWM 2527 or equivalent. (min 24 AWG VBUS/GND,...

  • Page 28: Screw Terminal Pin Out

    USB-5201 User's Guide Specifications Screw terminal pin out Table 17. Screw terminal pin out Signal Name Pin Description Signal Name Pin Description RSVD Reserved, Do Not Use RSVD Reserved, Do Not Use CH0 sensor input (+) CH7 sensor input (-)

  • Page 29: Declaration Of Conformity

    Declaration of Conformity Manufacturer: Measurement Computing Corporation Address: 10 Commerce Way Suite 1008 Norton, MA 02766 Category: Electrical equipment for measurement, control and laboratory use. Measurement Computing Corporation declares under sole responsibility that the product USB-5201 to which this declaration relates is in conformity with the relevant provisions of the following standards or other documents: EU EMC Directive 89/336/EEC: Electromagnetic Compatibility, EN 61326 (1997) Amendment 1 (1998) Emissions: Group 1, Class A...
  • Page 30 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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