Campbell Scientific ET107 Evapotranspiration Monitoring Station - Manual (Page 7)

Table of Contents
4.3 Schematics of Connectors .................................................................. 72
4.3.1 Sensor Schematics....................................................................... 72
4.3.2 Power Schematics ....................................................................... 77
4.3.3 Communication Modems Schematics ......................................... 77
Appendices
A.
ET107 Maintenance Log ......................................... A-1
B. PS24 24 Ahr Power Supply and 10 x 12 inch
Enclosure .............................................................. B-1
B.1 PS24 Components ............................................................................ B-1
B.2 Installation ........................................................................................ B-4
C. Exploded Views ...................................................... C-1
C.1 Enclosure .......................................................................................... C-1
C.2 Crossarm .......................................................................................... C-2
D. Default Programs .................................................... D-1
D.1 Program for ET107 with Gill WindSonic ....................................... D-1
D.2 Program for ET107 with 034B ........................................................ D-3
E. Step-down Transformer Installation ..................... E-1
Figures
1-1. Effect of structure on wind flow........................................................... 2
1-2. Cut flap packing tape ........................................................................... 3
1-3. Shipping box packaging ....................................................................... 3
1-4. ET107 with the Met One 034B-ETM Wind Sensor, top layer ............. 4
1-5. ET107, bottom layer ............................................................................. 4
1-6. Magnetic declination for the contiguous United States (2004) ............ 7
1-7. Declination angles east of True North are subtracted from 0 to get
True North ........................................................................................ 8
1-8. Declination angles west of True North are added to 0 to get True
North ................................................................................................. 8
2-1. ET tower installation with currently-available AC power option ...... 10
2-2. ET tower base installation .................................................................. 12
2-3. Cut-away view shows anchor bolt and conduit placement in cement
pad .................................................................................................. 12
2-4. Transparent view shows raising and grounding the ET tower ........... 14
2-5. Close up of ground rod and 4 AWG cable ......................................... 15
2-6. ET107 instrumentation mounted on the ET tower ............................. 16
2-7. Enclosure spacing above pole ............................................................ 17
2-8. ET107 sensor arm mounting .............................................................. 18
2-9. Temperature/relative humidity sensor with yellow protective cap ..... 19
2-10. Temperature/relative humidity sensor without yellow protective
cap .................................................................................................. 20
2-11. Wind and RH/temperature sensor installation .................................... 21
2-12. 034B mounting to pipe ....................................................................... 21
2-13. Screws that secure the electronics cover ............................................ 23
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