Campbell Scientific SR50-L CSC Ultrasonic Distance Sensor - Manual (Page 3)

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SR50 Sonic Ranging Sensor
Table of Contents
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1. SR50 Specifications ....................................................1
2. Introduction..................................................................2
3. Operation (General) .....................................................3
3.1 SDI-12 Operation......................................................................................4
3.2 SDI-12 CR10(X) Program Example .........................................................6
3.3 Pulse Train Output..................................................................................10
3.4 Two 21X Program Examples for Pulse Train Output .............................12
3.5 ASCII Output..........................................................................................18
4. Sensor Mounting and Installation ............................19
5. Data Interpretation.....................................................22
5.1 Measuring Snow Depth ..........................................................................23
6. Maintenance ...............................................................23
7. Assembly/Disassembly Procedures ........................24
Figures
1. SDI-12 Wiring ..........................................................................................5
2. SR50 Wiring for CR10(X) SDI-12 Example ............................................6
3. Pulse Train Wiring..................................................................................11
4. SR50 Wiring for 21X Pulse Example .....................................................12
5. SR50 Cone Angle ...................................................................................20
6a. SR50 Tripod Mount ................................................................................20
6b. SR50 Tower Mount ................................................................................21
7. SR50 Mounting Considerations..............................................................22
8. SR50 Stuffing Chart/Jumper Settings.....................................................26
Formulas
1. Temperature Compensation........................................................................4
2. Clearance Radius ......................................................................................19