Campbell HC2S3 Manuel d'utilisateur télécharger pdf (Page 8)

Appendices

A. Absolute Humidity ................................................... A-1

A.1 Measurement Below 0°C ..................................................................... A-2

B. Changing the HC2S3 Temperature Range ............ B-1

B.1 HC2S3 Default Settings ....................................................................... B-1

B.2 Software and Hardware Requirements ................................................ B-1

B.3 Changing the Temperature Range ....................................................... B-2

B.4 Multiplier and Offsets for Temperature Range .................................... B-3

C. HC2S3 Digital Communications ............................. C-1

C.1 HC2S3 Digital Interface Specifications ............................................... C-1

C.2 HC2S3 Communications Protocol ....................................................... C-1

C.3 RS-485 Communications using an MD485 RS-485 Interface ............. C-3

C.4 RS-485 Communications using an SDM-SIO1 Serial I/O Module ..... C-5

Figures

7-1. HC2S3 and Met20 Radiation Shield on a vertical pole .......................... 8

Tables

8-1. Connections for Single-Ended Measurements ........................................ 9

8-2. Connections for Differential Measurements ......................................... 10

9-1. Temperature .......................................................................................... 11

9-2. Humidity ............................................................................................... 11

9-3. Wiring for Single-ended Measurement Examples ................................ 12

9-4. Wiring for Differential Measurement Examples ................................... 15

A-1. Wiring for Vapour Pressure Examples............................................... A-1

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Campbell HC2S3 Manuel d'utilisateur Page 8