Measurement-computing DataShuttle Manual de usuario descargar pdf (Pagina 102)

13-2 Analog Input & Output

11-12-01

DataShuttle and DynaRes

Figure 13-1. Thermocouple Connections

When a resistor is installed at R5 and the thermocouple is grounded, there is a small current in the signal

wire. With extremely long wires or extremely small thermocouples, there may be enough resistance in the

wire to cause a small error. With long wires in a very noisy environment, large common mode signals can

exceed the common mode range of the analog board. A smaller resistor or larger capacitor at R5 will

rectify this problem.

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DataShuttle and DynaRes 1
Table of Contents 5
4 - Installing the DynaRes 6
5 - DynaRes - Technical Notes 6
8 - Installing the ACAO 7
Technical Notes 7
10 - QuickLog Introduction 7
Introduction 9
Data Presentation 10
Dynamic Resolution 10
Features and Configurations 11
DataShuttle Model Variations 12
DataShuttle-RTD 13
DataShuttle-TC 14
DataShuttle-5B 14
Installing Your DataShuttle 15
Physical Installation 16
Printer Installation 17
Keyboard Adapter Installation 17
Next Steps 17
Block Diagram 19
Auxiliary Components 21
Power Supplies 22
Examples 23
Example 3: Ground loops 24
&$87,21 25
Digital Components 26
Installing Pull-up Resistors 26
Counter/Timer 27
If You Need Customer Support 28
Troubleshooting: Operation 29
Product Specifications 31
DataShuttle-16 RTD Accuracy 32
Analog Input 34
Digital Input/Output 34
Analog Output 34
General Information 35
Introduction to the DynaRes 3 37
DynaRes System Requirements 40
Installing the DynaRes 4 41
Physical Board Installation 42
Measuring Current 44
Setting the Base Address 45
Changing Hardware Interrupts 46
DynaRes - Technical Notes 5 47
Recalibration 49
EDITCAL Utility 49
DynaRes 8/16 RTD Accuracy 53
Stability 54
Input Impedance 54
Noise Rejection 54
Common Mode Range 54
Input Protection 54
Resolution/Scan Rate 55
Digital I/O Channels 55
General Conditions 55
Types of Terminal Panels 58
T71 Terminal Panel 59
Reference Tables 60
Digital Auxiliary Components 64
Troubleshooting Q & A 65
Installing the ACAO 8 71
Setting the Switches 73
Multiple Boards 74
Single Board 75
Disabling Board 75
Setting the Switch 75
Base Address Settings 77
8-8 Installing the ACAO 78
Overview 79
Editing Calibration Files 81
Calibration File Format 82
Using EDITCAL 83
EDITCAL Selections 84
0 to 10V 0.02% 0.01% 86
Auxiliary Power Output 87
QuickLog Introduction 10 89
Setting Up QuickLog 90
Specifications 91
I/O Configuration By Channel 92
Chart Configuration 92
File Menu 93
Edit Menu 93
Options Menu: General 94
Options Menu: Inputs 95
Options Menu: Output Meters 95
Options Menu: Chart 95
Chart Menu 96
Run Menu 96
Window Menu 96
Calibration Menu 96
Help Menu 96
Applications Primer 12 97
Sensor Connections 98
Digital Connections 98
Applications Primer 12-3 99
12-4 Applications Primer 100
Analog Input & Output 13 101
Thermocouple Types 103
Strain Gages 104
Piezoelectric Sensors 105
RTD Ranges & Resolution 108
RTD Accuracy 109
High Voltage Divider 111
Voltage Output 111
Current Output 112
Digital I/O 14 115
14-2 Digital I/O 116
Digital I/O 14-3 117
Pulse Counting 118
Cascaded Counter/Timers 118
Frequency/Rate Measurement 119
14-6 Digital I/O 120
Appendix A 121
Glossary 123
Glossary - 2 124
Glossary - 3 125
Glossary - 4 126

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