Campbell-scientific AM16/32A Multiplexer Manual de usuario descargar pdf (Pagina 3)

AM16/32A Relay Multiplexer

Table of Contents

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1. Function........................................................................1

1.1 Typical Applications.................................................................................1

1.2 Compatibility............................................................................................2

2. Physical Description ...................................................2

3. AM16/32A Specifications ............................................3

4. Operation......................................................................5

4.1 The Control Terminals..............................................................................5

4.1.1 Reset................................................................................................6

4.1.2 Clock...............................................................................................6

4.1.3 Ground ............................................................................................7

4.1.4 Power Supply..................................................................................7

4.2 Measurement Terminals ...........................................................................8

4.2.1 COM Terminals ..............................................................................9

4.2.2 Sensor Input Terminals ...................................................................9

5. Datalogger Programming..........................................10

5.1 Single Loop Instruction Sequence ..........................................................11

5.2 Multiple Loop Instruction Sequence.......................................................16

5.3 CRBasic Programming ...........................................................................18

5.3.1 CR5000 and CR3000 Programming .............................................19

5.3.2 CR1000, CR800, and CR850 Programming .................................20

5.4 General Programming Considerations....................................................22

6. Sensor Hook-up and Measurement Examples........22

6.1 Single-Ended Analog Measurement without Sensor Excitation.............22

6.2 Differential Analog Measurement without Sensor Excitation ................23

6.3 Half Bridge Measurements .....................................................................24

6.3.1 Half Bridge Measurement with Completion Resistor at

Datalogger ......................................................................................24

6.3.2 Potentiometer Measurement..........................................................25

6.3.3 Four Wire Half Bridge (Measured Excitation Current).................25

6.4 Full Bridge Measurements......................................................................26

6.5 Full Bridges with Excitation Compensation...........................................27

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Campbell-scientific AM16/32A Multiplexer Manual de usuario Pagina 3