Campbell AM16/32, Instruction Manual

Page: 3 / 46

i
AM16/32 Relay Multiplexer
Table of Contents
PDF viewers note: These page numbers refer to the printed version of this document. Use
the Adobe Acrobat® bookmarks tab for links to specific sections.
1. Function.......................................................................1
1.1 Typical Applications.................................................................................1
1.2 Compatibility ............................................................................................2
2. Physical Description...................................................2
3. AM16/32 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 CR5000 and CR1000 Programming .......................................................18
5.3.1 CR5000 Programming ..................................................................19
5.3.2 CR1000 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 with Measured Excitation ........................25
6.4 Full Bridge Measurements ......................................................................26
6.5 Full Bridges with Excitation Compensation ...........................................27