DEWESOFT V21-1 User Manual
Power supply ground loops
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Also See for V21-1:
- Technical reference manual (51 pages) ,
- How-to manual (15 pages) ,
- Safety reference manual (10 pages)
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Table of Contents
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Summary of Contents for DEWESOFT V21-1
- Page 1 Power supply ground loops USER MANUAL Power supply ground loops V21-1 1 ...
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Page 2: Table Of Contents
Safety symbols in the manual 9 General Safety Instructions 9 Environmental Considerations 10 Product End-of-Life Handling 10 System and Components Recycling 10 General safety and hazard warnings for all Dewesoft systems 10 Documentation version history 12 V20-1... -
Page 3: About This Document
Power supply ground loops USER MANUAL 2. About this document This is the application note about the power supply ground loops. 2.1. Legend The following symbols and formats will be used throughout the document. ... -
Page 4: Overview
Care must be taken when supplying multiple devices – even if each device itself has a correct over-voltage and reverse polarity protection like the complete DAQ-System series from Dewesoft (like Sirius, DEWE-43…). This is the price for higher efficiency and wider input range of non isolated power supplies. ... -
Page 5: Error Case With Broken Gnd Cable
Power supply ground loops USER MANUAL 4.2. Error case with broken GND cable You can imagine what will happen when the “high-current path” is open. The current will flow a different way. Now the return supply path of the sensor is routed through the GND of the sensor input from the DAQ device. ... -
Page 6: Solution
Power supply ground loops USER MANUAL 5. Solution 5.1. Supply protection box An external fuse in the GND line solves this problem already. If the current through the supply line is too high, the fuse will blow. Therefore no damage on the DAQ-system or the sensor may happen. ... -
Page 7: Isolated Power Supply
The final result is the same: reverse polarity protection of the supply line. Hint This isolated power supply device is useful only with an older hardware. All new Dewesoft devices have the power supply input isolated. DEWE-43 H ardware revisions: ... -
Page 8: Warranty Information
Support Dewesoft has a team of people ready to assist you if you have any questions or any technical difficulties regarding the system. For any support please contact your local distributor first or Dewesoft directly. ... -
Page 9: Printing History
When used in text representing the company, product or technology name, the ® sign is not used. The Dewesoft triangle logo is a registered trademark but the ® sign is not used in the visual representation of the triangle logo. ... -
Page 10: Environmental Considerations
This symbol indicates that this system complies with the European Union’s requirements according to Directive 2002/96/EC on waste electrical and electronic equipment (WEEE). Please find further information about recycling on the Dewesoft web site www.dewesoft.com Restriction of Hazardous Substances ... - Page 11 REMOVE POWER and do not use the product until the safe operation can be verified by service-trained personnel. If necessary, return the product to Dewesoft sales and service office for service and repair to ensure that safety features are maintained. ...
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Page 12: Documentation Version History
Power supply ground loops USER MANUAL Do not switch on the system after transporting it from a cold into a warm room and vice versa. ● The thereby created condensation may damage your system. Acclimatise the system unpowered to room temperature. ...
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