Campbell Scientific DOT600 Roadbed Water Content Meter - Manual (Page 4)

DOT600 Table of Contents
ii
Appendix
A. Design and Calibration
........................................... A-1
A.1 Description of Basic Technology........................................................ A-1
A.2 Description of the Modified Device.................................................... A-2
A.3 Detailed Description of any Field and Laboratory Work.................... A-2
A.4 Displacement Sensor Calibration ........................................................ A-3
A.5 Sensitivity of Weight Position on Scale Surface................................. A-4
A.6 Soil Water Content Calibration........................................................... A-4
A.7 Description of the Test Performed and Factors Which Could Have
Effect on Results of DOT600 Measurements.................................... A-5
Figures
1. Cross sectional drawing shows mounting of battery and charger/
regulator beneath panel ..................................................................... 15
A-1. Typical scale calibration. The standard error is 0.013 g .................... A-3
A-2. Typical calibration data for the displacement sensors ....................... A-4
A-3. Partial calibration set showing calibration data and equation.
The effect of clay content on sensor response is apparent .............. A-5
Tables
1. Common and Special Keypad Functions ................................................... 4
2. Information in the report............................................................................ 6