Campbell-scientific CURS100 100 Ohm Current Shunt Terminal Input Modul Instrukcja Użytkownika Pobierz pdf (Strona 5)

Table of Contents

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1. Introduction.................................................................1

2. Specifications .............................................................1

3. Measurement Concepts .............................................2

3.1 Differential Measurement ....................................................................3

3.2 Completing the Current Loop Circuit ..................................................3

4. Transducer Wiring ......................................................4

4.1 Two-Wire Transducers.........................................................................4

4.1.1 Possible Ground Loop Problems...................................................5

4.1.2 Minimum Supply Voltage.............................................................5

4.2 Three-Wire Transducers.......................................................................6

4.3 Four-Wire Transducers ........................................................................7

5. Sensor and Programming Example ..........................8

5.1 Voltage Range......................................................................................8

5.2 Calculating Multiplier and Offset—An Example.................................8

5.3 CR1000 Program Example...................................................................9

5.4 CR9000(X) Program Example ...........................................................10

5.5 CR10(X) Program Example...............................................................10

5.6 CR23X Program Example..................................................................10

Figures

1-1. CURS100 terminal input module.........................................................1

2-1. CURS100 schematic ............................................................................2

3-1. CURS100 L terminal connected to a datalogger G terminal using

a jumper wire....................................................................................4

4-1. 2-wire with datalogger power ..............................................................5

4-2. 2-wire with external power ..................................................................5

4-3. 2-wire supply voltage...........................................................................6

4-4. 3-wire with datalogger power ..............................................................6

4-5. 3-wire with external power ..................................................................7

4-6. 4-wire with datalogger power ..............................................................7

4-7. 4-wire with external power ..................................................................7

1 2 3 4 5 6 7 8 9 10 ... 17 18

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Campbell-scientific CURS100 100 Ohm Current Shunt Terminal Input Modul Instrukcja Użytkownika Strona 5