Manual
HMP50 Table of Contents
PDF viewers note: These page numbers refer to the printed version of this document. Use
the Adobe Acrobat® bookmarks tab for links to specific sections.
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
i