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5-8 DynaRes - Technical Notes
11-13-01
DataShuttle and DynaRes
RTD Conditions – Same as General Conditions. It does not include the accuracy of the RTD sensor itself.
RTD Conditions includes linearization and signal conditioning errors. Resolution assumes 16-bit resolution
is in use. RTD measurements are on the 50 mV range.
Stability
Accuracy specifications in this chapter already reflect these temperature drift errors for temperatures from
20° through 40° C.:
DynaRes 8/16 STABILITY
Range % per °C. % Over a Year
50 mV ± 0.001 ± 0.02
± 25mV ± 0.001 ± 0.02
all other voltage ranges ± 0.0025 ± 0.03
I
n many applications, stability and noise can be more important than absolute accuracy. This is
“repeatability.” Calculate the repeatability of a reading by adding together the stability and noise for the
range you want.
Input Impedance
The DynaRes 8/16 Ultra has an input impedance of > 20 M
Ω
.
Noise Rejection
Important: All noise measurements are in low noise mode.
CMRR – The Common Mode Rejection Ratio (CMRR) is >20 dB. Conditions for CMRR: DC to 400 Hz,
common mode input ± 7.0 Volts channel to ground. This specification applies even when one or more
nonmeasured channels exceeds the operating common mode range.
DynaRes 8/16 Noise Rejection
Range Typical Internal Noise (RMS)
50 mV 0.5 µV
± 25 mV 0.5 µV
500 mV 2.5 µV
± 250 mV 2.5 µV
10 V 50 µV
± 5 V 50 µV
Common Mode Range
Operating, channel-to-ground – ±7 Volts
Nonoperating – 50 Volts continuous, 150 Volts for one second, nonrepetitive.
Input Protection
50 Volts continuous. 150 Volts for one second, nonrepetitive.
- 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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