Campbell Scientific SR50A Distance Sensor User Manual
Page 4
SR50A Table of Contents
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4. Sensor Mounting and Installation ............................16
4.1 Beam Angle ........................................................................................... 16
4.2 Mounting Height.................................................................................... 17
4.2.1 Reference Point ............................................................................ 17
4.3 Mounting Options .................................................................................. 18
5. Maintenance ...............................................................19
6. Disassembly/Assembly Procedures ........................20
7. Jumper Settings.........................................................23
8. SR50A Firmware Updates .........................................24
9. Data Interpretation .....................................................25
10. Datalogger Program Examples...............................26
10.1 SR50A Examples ................................................................................. 26
10.1.1 CR1000 Example (SDI-12 “M1!”) ............................................ 26
10.1.2 CR1000 Example (RS-232 Mode) ............................................. 27
10.1.3 CR10X Example (SDI-12 “M1!”).............................................. 28
10.2 SR50AT Examples............................................................................... 30
10.2.1 CR1000 Example (SDI-12 “M4!”) ............................................ 30
10.2.2 CR1000 Example (RS-232 Mode) ............................................. 32
10.2.3 CR10X Example (SDI-12 “M3!”).............................................. 33
11. Warnings/Cautions ..................................................34
Figures
1. SR50A to MD485 Wiring.......................................................................... 8
2. Beam Angle Clearance............................................................................. 17
3. Distance from Edge of Transducer Housing to Grill ............................... 17
4. SR50A Mounted to a Crossarm via the 19517 Mounting Kit.................. 18
5. The SR50A Mounted to the Crossarm Shown from Another Angle ....... 18
6. SR50A - Mounted using a NU-RAIL Fitting and 19484 Mounting Stem...... 19
7. Disconnect Cable from Sensor................................................................. 20
8. Remove 6 Screws from the Transducer Housing..................................... 21
9. Remove Transducer Housing and Disconnect Wires............................... 21
10. Location of Desiccant in Transducer Housing Assembly...................... 22
11. Remove and Replace Desiccant ............................................................. 22
12. Remove the 2 Flat Phillips Screws to Expose the PCB ......................... 23
13. Jumper Settings...................................................................................... 23