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Section 4. Sensor Support
40
Figure 27: Voltage Measurement Accuracy (0° to 40° C)
4.2.3
Voltage Range
The CR200(X) has one analog voltage range of 0 to 2.5 volts. The resolution
for a single A/D conversion is 0.6 millivolts.
4.2.4
Integration
Integration is used to reduce the noise included in a measurement. The
CR200(X) uses a form of digital integration. It makes 10 A/D conversions and
averages them for the result returned. The A/D conversions are made every 26
microseconds.
Averaging will also reduce signal noise from the sensor such as when water
level measured with a pressure transducer is changing because of pressure
fluctuations caused by wind.
Averaging also has an effect on the resolution. The resolution seen in the
numerical result is the resolution of a single A/D conversion (0.6 mV) divided
by the number of A/D conversions (10).
Содержание CR200
Страница 32: ...Section 2 Quickstart Tutorial 22 ...
Страница 45: ...Section 3 Overview 35 3 3 Specifications ...
Страница 46: ...Section 3 Overview 36 ...
Страница 58: ...Section 4 Sensor Support 48 ...
Страница 62: ...Section 5 Measurement and Control Peripherals 52 ...
Страница 78: ...Section 8 CR200 X Configuration 68 ...
Страница 102: ...Section 9 Programming 92 ...
Страница 138: ...Section 11 Programming Resource Library 128 ...
Страница 156: ...Section 16 Support Software 146 ...
Страница 160: ...Section 17 Care and Maintenance 150 ...
Страница 166: ...Section 18 Troubleshooting 156 18 3 3 Diagnosis and Fix Procedures 18 3 3 1 Battery Voltage Test ...
Страница 167: ...Section 18 Troubleshooting 157 18 3 3 2 Charging Circuit Test Solar Panel ...
Страница 168: ...Section 18 Troubleshooting 158 18 3 3 3 Charging Circuit Test Transformer ...
Страница 169: ...Section 18 Troubleshooting 159 18 3 3 4 Adjusting Charging Circuit Voltage ...
Страница 170: ...Section 18 Troubleshooting 160 ...
Страница 184: ...Appendix A Glossary 14 ...
Страница 190: ...Appendix B Status Table and Settings 20 ...
Страница 192: ...Appendix C Serial Port Pin Outs 22 ...
Страница 211: ......