Campbell Scientific HMP50 Temperature and Relative Humidity Sensor User Manual
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HMP50 Table of Contents
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1. General
.........................................................................1
2. Specifications
..............................................................1
2.1 Temperature Sensor ..................................................................................2
2.2 Relative Humidity Sensor.........................................................................2
3. Installation
....................................................................3
3.1 Siting.........................................................................................................3
3.2 Mounting and Assembly...........................................................................3
4. Wiring
............................................................................6
5. Example Programs
......................................................6
5.1 Example for CR1000 ................................................................................7
5.2 Example for CR10X .................................................................................8
6. Long Lead Lengths
......................................................9
7. Absolute Humidity
.......................................................9
7.1 CR1000 Vapor Pressure Example ..........................................................10
7.2 Sample CR10(X) Program that Computes Vapor Pressure and Saturation
Vapor Pressure ...................................................................................11
8. Maintenance
...............................................................12
8.1 Procedure for Removing RH Chip .........................................................13
9. References
.................................................................13
Figures
1. HMP50 as Shipped .....................................................................................4
2. HMP50 and 41303-5A Radiation Shield on a Tripod Mast .......................4
3. HMP50 and 41303-5A Radiation Shield on a CM202 Crossarm...............5
4. HMP50 and 41303-5A Radiation Shield....................................................5
5. HMP50 Wiring ...........................................................................................6
6. Exploded View of HMP50 (as shipped)...................................................13
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