User Manual
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CRD5490
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Table Of Contents
Features
Overview
1. Characteristics and Specifications
1.1 Recommended Operating Conditions
1.2 Electrical Characteristics
2. Hardware Overview
2.1 Line Voltage Sensor
2.2 Shunt Current Resistor
2.3 Power Supply
2.4 MCU Purpose
3. Software Overview
3.1 Installation Procedure
3.1.1 Executing the GUI
3.2 Using the Software
3.3 Start-up Window
3.3.1 Connection Tab
3.3.1.1 Common Causes of Communication Error
3.3.1.2 Fixing Communication Problems
3.3.2 Quick Measurements Tab
3.3.2.1 START Button
3.3.2.2 Change Sample Count Button
3.3.2.3 Change Cycle Count Button
3.3.3 Graphics Tab
3.3.3.1 Max Samples Field
3.3.3.2 Clear Chart Button
3.3.4 Data Table Tab
3.3.4.1 Write Table Button
3.3.4.2 Clear Table Button
3.3.5 Calibration Tab
3.3.5.1 AC Offset / Gain Register
3.3.5.2 Performing Calibrations
3.3.6 Register Write/Read Tab
4. Revision History
2.1 Installing the CDC Driver Using Windows 7
2.2 Installing the CDC Driver Using Windows XP
4. Schematic
5. Bill of Materials
6. Layout
CRD5490-Z
22
DS988RD1
10.
T
o confir
m results, click th
e
Quick Measurement
s
t
ab to br
ing it forward, and click the
ST
ART
button.
Results should show a reduction in the I
RMS
value without the load.
Figure 25. Confirm I
RMS
Reduced After AC Offset Calibration
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