Campbell-scientific HMP155A Temperature and Relative Humidity Probe Instrukcja Użytkownika Pobierz pdf (Strona 8)

Table of Contents

B. Example Programs .................................................. B-1

B.1 Single-Ended Voltage Measurement Examples .............................. B-1

B.1.1 CRBasic Single-Ended Measurement Program ........................ B-1

B.1.2. Edlog Single-Ended Measurement Program ............................ B-2

B.2 Differential Measurement Examples ............................................... B-3

B.2.1 CRBasic Differential Measurement Program ........................... B-3

B.2.2 Edlog Differential Measurement Program ............................... B-4

B.3 Mean Vapor Pressure Examples ...................................................... B-5

B.3.1 CRBasic Vapor Pressure and Saturation Vapor Pressure

Program ................................................................................ B-5

B.3.2 Edlog Vapor Pressure and Saturation Vapor Pressure

Program ................................................................................ B-6

C. Interfacing with HMP155A RS-485 Output ............ C-1

C.1 RS-485 Interface Options ................................................................ C-1

C.2 SDM-SIO1 Serial I/O Module Interface Option .............................. C-1

C.2.1 Program Example for SDM-SIO1 Module ............................... C-1

C.3 MD485 Multidrop Interface Option ................................................ C-4

C.3.1 MD485 Multidrop Interface Configuration .............................. C-6

C.3.2 CR1000 Example Program for use with MD485 ..................... C-7

Figures

4-1. HMP155A in shipping box .................................................................. 2

4-2. Cable routed through the connector cover ........................................... 3

4-3. Cable connected to the sensor ............................................................. 3

4-4. HMP155A with connector cover in place and without protective

cap .................................................................................................... 3

4-5. HMP155A and 14-plate radiation shield on a tripod mast .................. 4

4-6. HMP155A and 14-plate radiation shield on a CM200-series

crossarm ........................................................................................... 4

6-1. Probe dimensions ................................................................................ 9

6-2. Wiring of HMP155A 8-pin connector ................................................. 9

8-1. Changing the filter ............................................................................. 16

Tables

5-1. Recommended Lead Lengths .............................................................. 8

7-1. Connections for Single-Ended Measurements ................................... 12

7-2. Connections for Differential Measurements ...................................... 13

7-3. Power Connections using SW12V Power Switch ............................. 13

7-4. Parameters for Temperature .............................................................. 14

7-5. Parameters for Relative Humidity ..................................................... 14

8-1. Chemical Tolerances of HMP155A .................................................. 17

B-1. Wiring for Single-ended Measurement Examples ........................... B-1

B-2. Wiring for Differential Measurement Examples ............................. B-3

B-3. Wiring for Vapor Pressure Examples .............................................. B-5

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 47 48

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Campbell-scientific HMP155A Temperature and Relative Humidity Probe Instrukcja Użytkownika Strona 8

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