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Campbell Scientific 4WPB100, 4WPB1K PRT Terminal Input Modules User Manual

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4WPB100, 4WPB1K Table of Contents

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1. Function

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

2. Specifications

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

3. Wiring

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

4. Programming Examples

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

4.1 CR10(X) ...................................................................................................5
4.2 21X ...........................................................................................................5
4.3 CR7...........................................................................................................6
4.4 CR9000X..................................................................................................6
4.5 CR1000.....................................................................................................7

5. PRT in 4 Wire Half Bridge

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

5.1 Excitation Voltage ....................................................................................8
5.2 Calibrating a PRT .....................................................................................8

Figures

1-1. Terminal Input Module ...........................................................................1
2-1. Circuit Schematic ....................................................................................2
3-1. Wiring for Example Programs ................................................................2

Tables

3-1. 4WPB100/4WPB1K Connections to Campbell Scientific Dataloggers..3
4-1. Excitation Voltage for 100 Ohm PRT in 4WPB100 Based on

Maximum Temperature and Input Voltage Range...............................3

4-2. Excitation Voltage for 1000 Ohm PRT in 4WPB1000 Based on

Maximum Temperature and Input Voltage Range...............................4