Campbell Scientific CS420 and CS425 PDCR 1830-8388 Pressure Transducer User Manual

Page 3

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CS420-L/CS425-L (Druck PDCR Series)
Table of Contents

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1. General Information

.....................................................1

2. Specifications

..............................................................1

3. Installation

....................................................................2

3.1 Vent Tubes................................................................................................2
3.2 Dislodging Bubbles ..................................................................................2
3.3 Transient Protection..................................................................................2
3.4 Temperature Fluctuations .........................................................................2

4. Datalogger - Sensor Connections

..............................2

4.1 Six-Wire Configuration ............................................................................3
4.2 Four-Wire Configuration..........................................................................3

5. Programming

...............................................................3

5.1 Using Short Cut ........................................................................................3
5.2 Using CRBasic, Edlog, or the Keyboard/Display.....................................4

5.2.1 Calculating the Multiplier ...............................................................4
5.2.2 Calculating the Offset .....................................................................5

5.3 Fine Tuning the Excitation and Input Range ............................................5
5.4 Increasing the Resolution .........................................................................6

6. CRBasic Program Examples

......................................7

6.1 Wiring for the Program Examples............................................................7

6.1.1 BrFull Instruction (4-Wire Full Bridge Measurement)...................7
6.1.2 BrFull6W Instruction (6-Wire Full Bridge Measurement) .............7

6.2 CR800, CR850, and CR1000 Programs ...................................................8

6.2.1 BrFull Instruction (4-Wire Full Bridge Measurement)...................8
6.2.2 BrFull6W Instruction (6-Wire Full Bridge Measurement) .............8

6.3 CR3000 Programs.....................................................................................9

6.3.1 BrFull Instruction (4-Wire Full Bridge Measurement)...................9
6.3.2 BrFull6W Instruction (6-Wire Full Bridge Measurement) .............9

6.4 CR5000 Programs...................................................................................10

6.4.1 BrFull Instruction (4-Wire Full Bridge Measurement).................10
6.4.2 BrFull6W Instruction (6-Wire Full Bridge Measurement) ...........10

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