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Table of Contents
iii
Schematics of Connectors .................................................................. 65
Sensor Schematics....................................................................... 65
Power Schematics ....................................................................... 69
Communication Modems Schematics ......................................... 70
Appendices
Determining True North and Wind Sensor
Orientation ........................................................... A-1
Online Magnetic Declination Calculator ......................................... A-3
ET107 Maintenance Log ........................................ B-1
PS24 24 Ah Power Supply and 10 x 12 inch
Enclosure ............................................................. C-1
PS24 Components ............................................................................ C-1
Exploded Views ..................................................... D-1
Enclosure Exploded View ............................................................... D-1
Crossarm Exploded View................................................................ D-2
Default Programs .................................................... E-1
Step-down Transformer Installation ...................... F-1
Figures
3-2. Shipping box packaging .......................................................................2
3-3. ET107 with the Met One 034B-ETM Wind Sensor, top layer .............3
4-1. ET107 pole installation with currently-available AC power option .....5
5-1. Effect of structure on wind flow...........................................................7
5-2. ET107 pole base installation ................................................................8
5-3. Cut-away view shows anchor bolt and conduit placement in
cement pad ........................................................................................9
5-4. Position of bulkhead connectors......................................................... 11
5-5. Transparent view shows raising and grounding the ET107 pole ........ 12
5-6. Close-up of ground rod and 4 AWG cable ......................................... 14
5-7. Enclosure spacing above pole ............................................................ 15
5-8. ET107 instrumentation mounted on the ET107 pole.......................... 16
5-9. ET107 crossarm mounting ................................................................. 17
5-10. Temperature/relative humidity sensor with yellow protective cap ..... 18
5-11. Temperature/relative humidity sensor without yellow protective
5-12. Wind and RH/temperature sensor installation .................................... 19
5-14. Screws that secure the electronics cover ............................................ 22
5-15. Removal of the electronics cover ....................................................... 22