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Summary of Contents for Measurement Computing USB-5203
- Page 1 USB-5203 Multi-sensor Measurement and Data Logger User's Guide Document Revision 15 July 2015 © Copyright 2015...
- Page 2 © 2015 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 Measurement Computing Corporation.
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Page 3: Table Of Contents
Conventions in this user's guide ......................... 5 Where to find more information ......................... 5 Chapter 1 Introducing the USB-5203 ........................6 Logging data with the USB-5203 ............................. 6 Functional block diagram ........................... 7 Chapter 2 Installing the USB-5203 ........................8 Unpacking................................ - Page 4 ............................19 Data logging button .................................20 External power supply ............................21 Disconnecting the USB-5203 from the computer ..................... 21 Transferring binary data after a logging session ....................21 Converting binary data after a logging session ....................21 Chapter 5 Specifications ............................
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Page 5: Preface
Preface About this User’s Guide What you will learn from this user's guide This user's guide describes the Measurement Computing USB-5203 data acquisition device and lists device specifications. Conventions in this user's guide For more information Text presented in a box signifies additional information related to the subject matter. -
Page 6: Introducing The Usb-5203
For more information, refer to Logging data with the USB-5203 below. The USB-5203 device is compatible with both USB 1.1 and USB 2.0 ports. The speed of the device may be limited when using a USB 1.1 port due to the difference in transfer rates on the USB 1.1 versions of the protocol (low-speed and full-speed). -
Page 7: Functional Block Diagram
You can use InstaCal to convert the files to format for use in Microsoft Excel files, or to .csv .txt format for use in other applications. Functional block diagram USB-5203 functions are illustrated in the block diagram shown here. Figure 1. Functional block diagram... -
Page 8: Installing The Usb-5203
Installing the hardware To connect the USB-5203 to your system, turn your computer on, and connect the USB cable to a USB port on your computer or to an external USB hub that is connected to your computer. The USB cable provides power and communication to the USB-5203. -
Page 9: Configuring The Hardware
copy and convert saved binary files delete data files All data logging options are stored on the USB-5203 in non-volatile memory in EEPROM, and are loaded on power up. Calibrating the hardware Factory calibration The Measurement Computing Manufacturing Test department performs the initial factory calibration. Return the device to Measurement Computing Corporation when calibration is required. -
Page 10: Chapter 3 Sensor Connections
Screw terminal pinout The USB-5203 has four rows of screw terminals – two rows on the top edge of the housing, and two rows on the bottom edge. Each row has 26 connections. Between each bank of screw terminals are two integrated CJC sensors used for thermocouple measurements. -
Page 11: Current Excitation Output Terminals (±I1 To ±I4)
Do not connect two different sensor categories to the same channel pair The USB-5203 provides a 24 bit A/D converter for each channel pair. Each channel pair can monitor one sensor category. To monitor a sensor from a different category, connect the sensor to a different channel pair (input terminals). -
Page 12: Wiring Configuration
Each current excitation terminal is dedicated to one channel pair. The USB-5203 makes two, three, and four-wire measurements of RTDs (100 Ω platinum type) and thermistors. Use InstaCal to select the sensor type and the wiring configuration. Once the resistance value is calculated, the value is linearized in order to convert it to a temperature value. -
Page 13: Two-Wire Configuration
Sensor Connections Two-wire configuration The easiest way to connect an RTD sensor or thermistor to the USB-5203 is with a two-wire configuration, since it requires the fewest connections to the sensor. With this method, the two wires that provide the RTD sensor with its excitation current also measure the voltage across the sensor. -
Page 14: Three-Wire Configuration
Figure 6. Three-wire RTD or thermistor sensor measurement configuration When you select a three-wire sensor configuration with InstaCal, the USB-5203 measures the lead resistance on the first channel (C#H/C#L) and measures the sensor itself using the second channel (C#H/C#L). This configuration compensates for any lead-wire resistance and temperature change in lead-wire resistance. -
Page 15: Semiconductor Sensor Measurements
Use InstaCal to select the sensor type (LM35, TMP35 or equivalent) and the sensor input channel to connect the sensor. Wiring configuration Connect the semiconductor sensor to the USB-5203 using a single-ended configuration, as shown in Figure 10. The device provides pins for powering the sensor. -
Page 16: Digital I/O Connections
When you configure the digital bits for input, you can use the USB-5203 digital I/O terminals to detect the state of any TTL-level input. Refer to the schematic shown in Figure 11. If you set the switch to the +5V input, DIO0 reads TRUE (1). -
Page 17: Chapter 4 Functional Details
+2.5 V to the thermocouple’s low side at the C#L input. Always connect thermocouple sensors to the USB-5203 in a floating fashion. Do not attempt to connect the thermocouple low side C#L to GND or to a ground referencing resistor. -
Page 18: Rtd And Thermistor Measurements
RTDs and thermistors are resistive devices that require an excitation current to produce a voltage drop that can be measured differentially across the sensor. The USB-5203 measures the sensor resistance by forcing a known excitation current through the sensor and then measuring (differentially) the voltage across the sensor to determine its resistance. -
Page 19: Usb Connector
USB connector to the external power supply. The LED uses up to 5 mA of current. The function of the LED varies according to whether the USB-5203 is connected to an active USB port, or when the device is logging data and connected to the external power supply. -
Page 20: Data Logging Button
The device caches log data in volatile memory prior to writing to the memory card. Pressing the data logging button has no effect when the USB-5203 is connected to an active USB port and not logging data. -
Page 21: External Power Supply
When the USB-5203 is installed with firmware revision 3 or later and you are running Windows XP, use the Unplug or Eject icon on the computer's taskbar to safely stop the USB-5203 before you unplug it. To do this, right-click on the icon, select the USB-5203 and click . -
Page 22: Chapter 5 Specifications
Chapter 5 Specifications All specifications are subject to change without notice. Typical for 25 °C unless otherwise specified. Specifications in italic text are guaranteed by design. Analog input 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... -
Page 23: Compatible Sensors
USB-5203 User's Guide Specifications Table 2. Channel configuration specifications Sensor Category Conditions Max number of sensors (all channels configured alike) Disabled (Note 1) Thermocouple J, K, S, R, B, E, T, or N 8 differential channels Semiconductor sensor 8 differential channels... -
Page 24: Semiconductor Sensor Measurement Accuracy
USB-5203 User's Guide Specifications Table 4. Thermocouple accuracy specifications, including CJC measurement error Sensor Type Maximum error (°C) Typical error (°C) Temperature range (°C) ±1.499 ±0.507 –210 to 0 ±0.643 ±0.312 0 to 1200 ±1.761 ±0.538 –210 to 0 ±0.691 ±0.345... -
Page 25: Thermistor Measurement Accuracy
USB-5203 User's Guide Specifications Thermistor measurement accuracy The error shown in Table 7 below does not include errors of the sensor itself. The sensor linearization is performed using a Steinhart-Hart linearization algorithm. These specs are for one year while operating the device between 15 °C and 35 °C. -
Page 26: Throughput Rate To Pc
USB-5203 User's Guide Specifications Throughput rate to PC 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. -
Page 27: Memory
USB-5203 User's Guide Specifications Alarm input modes Alarm when input temperature > T1 Alarm when input temperature > T1, reset alarm when input temperature goes below T2 Alarm when input temperature < T1 Alarm when input temperature < T1, reset alarm when input temperature goes above T2 ... -
Page 28: Real Time Clock
USB-5203 User's Guide Specifications Parameter Specification Logging stop methods Stop on button press – To stop logging, press and hold the button until the LED turns off. The device caches logged data in volatile memory prior to writing to memory card. When logging, always use the button to stop logging and ensure data is written to memory card prior to removing power. -
Page 29: Usb Specifications
USB-5203 User's Guide Specifications Input voltage 100 VAC to 240 VAC 50 Hz to 60 Hz Input current 0.2 A This is the total current requirement for the device which includes up to 10 mA for the status LED. Note 3: Self-powered hub refers to a USB hub with an external power supply. -
Page 30: Environmental
USB-5203 User's Guide Specifications Environmental Table 20. Environmental specifications Parameter Specification Operating temperature range 0 °C to 70 °C Storage temperature range –40 °C to 85 °C Humidity 0% to 90% non-condensing Mechanical Table 21. Mechanical specifications Parameter Specification Dimensions (L × W × H) 128.52 x 88.39 ×... -
Page 31: Declaration Of Conformity
Norton, MA 02766 Category: Electrical equipment for measurement, control and laboratory use. Measurement Computing Corporation declares under sole responsibility that the product USB-5203 to which this declaration relates is in conformity with the relevant provisions of the following standards or other... - Page 32 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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