Campbell Scientific KH20 Krypton Hygrometer - Manual (Page 3)

KH20 Table of Contents
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1. General Description
.....................................................1
2. Specifications
..............................................................1
2.1 Measurements ...........................................................................................1
2.2 Electrical...................................................................................................1
2.3 Physical.....................................................................................................2
3. Installation
....................................................................2
3.1 Siting.........................................................................................................2
3.2 Mounting ..................................................................................................2
3.2.1 Parts and Tools Needed for Mounting ............................................2
3.2.2 Mounting the KH20 Sensor ............................................................3
3.2.3 Mounting the Electronics Box ........................................................3
4. Wiring
............................................................................5
5. Datalogger Programming
............................................6
5.1 KH20 Calibration .....................................................................................6
5.2 Example 1, CR3000 Program to Measure Water Vapor Fluctuations......7
6. Maintenance and Calibration
......................................9
6.1 Visual Inspection ......................................................................................9
6.2 Testing the Source Tube ...........................................................................9
6.3 Testing the Detector Tube ........................................................................9
6.4 Managing the Scaling of KH20 ..............................................................10
6.5 Older KH20 ............................................................................................10
6.6 Calibration ..............................................................................................10
Appendix
A. Calibrating KH20
..................................................... A-1
A.1 Basic Measurement Theory ................................................................ A-1
A.2 Calibration of KH20 ........................................................................... A-1
Figures
1. Mounting KH20 onto a tripod ....................................................................3
2. Proper mounting position of the electronics box ........................................4
3. Attaching cables to the electronics box ......................................................5
A-1. KH20 ln(mV) vs. Vapor Density....................................................... A-2
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