Product Manual

Contents
1. Introduction..................................................................1
2. Specifications ..............................................................2
2.1 General Specifications..............................................................................2
2.2 Output Specifications................................................................................3
2.3 Isolation Specifications.............................................................................3
3. Power Considerations.................................................4
4. Installation....................................................................4
4.1 Connection to a Datalogger ......................................................................4
4.2 Output Device Connections......................................................................6
4.2.1 Voltage Output Mode .....................................................................6
4.2.2 Current Output Mode......................................................................6
4.2.3 Shield and Ground Connections .....................................................8
4.2.4 Output Terminal Connectors...........................................................8
4.3 Output Mode Setting ................................................................................8
4.4 SDM Address Setting ...............................................................................9
4.5 Safety Considerations.............................................................................10
5. General Principles of Use.........................................12
5.1 Voltage or Current Signalling.................................................................12
5.2 Providing Excitation Supplies to Sensors...............................................12
6. Datalogger Instruction (103).....................................13
6.1 Edlog Instruction 103 .............................................................................13
6.2 Edlog Program Examples .......................................................................15
6.2.1 Voltage and 0-20 mA Current Output Modes...............................15
6.2.2 Restricted Range Current Output Modes (4-20 mA)....................17
6.2.3 Providing Isolated Power Supplies to Sensor ...............................18
6.3 CRBasic SDM-CVO4 Instruction ..........................................................20
6.4 SDM-CVO4 Instruction Example...........................................................21
Figures
1. SDM-CVO4................................................................................................1
4-1. Use of the Spring-Loaded Terminal Blocks (Top Position)....................5
4-2. Use of the Spring-Loaded Terminal Blocks (Front Position)..................5
4-3. Location of Jumpers on Circuit Board ....................................................9
4-4. Address Selection Switch......................................................................10
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