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Summary of Contents for Campbell CS615
- Page 1 CS615 WATER CONTENT REFLECTOMETER INSTRUCTION MANUAL version 8221-07 REVISION: 10/96 COPYRIGHT (c) 1995-1996 CAMPBELL SCIENTIFIC, INC.
- Page 2 CAMPBELL SCIENTIFIC, INC. CAMPBELL SCIENTIFIC, INC. will return such products by surface carrier prepaid. This warranty shall not apply to any CAMPBELL SCIENTIFIC, INC. products which have been subjected to modification, misuse, neglect, accidents of nature, or shipping damage.
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Page 3: Table Of Contents
CS615 WATER CONTENT REFLECTOMETER INSTRUCTION MANUAL TABLE OF CONTENTS PAGE INTRODUCTION ........................1 DESCRIPTION ........................... 1 SPECIFICATIONS Dimensions..........................2 Weight ............................2 Electrical ............................ 2 PERFORMANCE SPECIFICATIONS Accuracy............................ 2 Resolution..........................2 Operating Range ........................2 INSTALLATION Orientation ..........................3 Potential Problems with Improper Insertion................3 WIRING ............................ -
Page 4: Introduction
The Water Content Reflectometer consists of NOTE: There is more than one version of two stainless steel rods connected to a printed the CS615. This manual is written for circuit board. A shielded four-conductor cable is version 8221-07. The version number is... -
Page 5: Specifications Dimensions
3.2 cm spacing The propagation of electromagnetic fields in the Head: 11.0 cm x 6.3 cm x 2.0 cm configuration of the CS615 is predominantly affected by changing dielectric constant due to 3.2 WEIGHT changing water content, but it is also affected by Probe: 280 g electrical conductivity. -
Page 6: Installation Orientation
It would be convenient if the calibration of water measurement taken on a soil at a water content of content to CS615 output period could be about 0.23 and a temperature of 25°C. The adjusted according to some parameter of the °C... -
Page 7: Wiring
Loop Count 7. DATALOGGER INSTRUCTIONS 4: End (P95) 7.1 INTRODUCTION 5: Pulse (P3) The output of the CS615 is essentially a square Reps wave with amplitude ±2.5 volts and a frequency Pulse Input Channel Low Level AC, Output Hz which is dependent on the dielectric constant of Loc [ kHz the material surrounding the probe rods. -
Page 8: Period Measurement
CS615 is not enabled until the 15 minute interval The CS615 provides an indirect measurement specified in the Instruction 92 is reached. When... -
Page 9: Sample Programs
The calibration relationship between volumetric conductivity values of 1 dS m and below, the water content and CS615 output period for a calibration shown for 0.8 dS m works well for a specific soil may need to be established if wide range of soil textures. -
Page 10: Sample Program 1
Delay Loop Count 5: Polynomial (P55) ;convert period to water content 4: End (P95) Reps X Loc [ 615period ] 5: Pulse (P3) ;determine CS615 output frequency F(X) Loc [ 615water ] Reps -0.187 Pulse Input Channel 0.037 Low Level AC, Output Hz 0.335... -
Page 11: Sample Program 3
Set Flag 1 low 12: End (P95) *Table 1 Program Execution Interval (seconds) End Program 1: If time is (P92) ;take CS615 readings hourly 10.3 SAMPLE PROGRAM 3 0000 Minutes into a Program using the Pulse Count Instruction (P3) Minute Interval... -
Page 12: Sample Program 4
48 CS615 probes 7: Beginning of Loop (P87) Delay CAUTION: Loop Count 1. The probe rods of the CS615 are 8: End (P95) ;end of delay loop essentially antennae which transmit and receive radio waves. Interference can 9: Pulse (P3) ;read CS615s... - Page 13 CS615 WATER CONTENT REFLECTOMETER ; loop index multiplied by 3 so that 3 readings 11: Polynomial (P55) measured by pulse Reps ; instruction are advanced 3 locations each pass X Loc [ Period#1 ] through measurement loop F(X) Loc [ WatCont#1 ] -0.187...
- Page 14 CS615 WATER CONTENT REFLECTOMETER CR10 or 21X AM416 CS615 enable Reset signal Clock enable signal enable signal CR10 Using Using enable Period Pulse signal Measurement Count enable signal enable signal (SE = Single enable Ended Input signal #46 Channel) signal #47...
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