Campbell Scientific UT20 and UT30 Tower-based Weather Stations - Manual (Page 8)

Table of Contents
8. Preparing the Tower for Use .................................... 20
8.1 Enclosure, Datalogger, Power Supply ............................................... 20
8.1.1 Enclosure .................................................................................... 20
8.1.2 CR1000 Datalogger .................................................................... 23
8.1.3 BPALK Alkaline Power Supply ................................................ 23
8.1.4 PS100 Rechargeable Power Supply ........................................... 23
8.1.5 SP10 Solar Panel ........................................................................ 24
8.2 Sensor Connection ............................................................................. 26
8.3 Communication and Data Storage Peripherals .................................. 27
8.3.1 CFM100, NL115, or NL120 ...................................................... 27
8.3.2 COM220 Phone Modems ........................................................... 27
8.3.3 Cellular Transceivers ................................................................. 28
8.3.4 SRM-5A Rad Modem and SC932A Interface ............................ 29
8.3.4.1 SRM-5A at the Datalogger .............................................. 29
8.3.4.2 SRM-5A at the Computer ................................................ 29
8.3.5 RF500M RF Modem and RF310-Series Transceivers ............... 32
8.3.5.1 RF500M Modem Configuration ...................................... 32
8.3.5.2 RF500M RF Base Station ................................................ 33
8.3.5.3 Install Nearest Repeater/Field Station ............................. 34
8.3.6 MD485 Multidrop Interface ....................................................... 34
8.3.6.1 MD485 Multidrop Interface at the Datalogger ................ 34
8.3.6.2 MD485 Multidrop Interface at the Computer .................. 34
8.4 Sealing and Desiccating the Enclosure .............................................. 35
8.5 Sensor Installation ............................................................................. 37
8.5.1 034B Met One Windset .............................................................. 37
8.5.2 05103, 05103-45, 05106, and 05305 RM Young Wind
Monitors .................................................................................. 38
8.5.3 03002 RM Young Wind Sentry Wind Set .................................. 39
8.5.3.1 03002 Mounted to the Mast ............................................. 39
8.5.3.2 03002 Mounted to a CM200-Series Crossarm................. 39
8.5.4 Licor Silicon Radiation Sensors (LI200X, LI200S, LI190SB) .. 40
8.5.5 107/108 Temperature Probe ....................................................... 41
8.5.6 107/108 Soil Temperature Probe ................................................ 41
8.5.7 HMP60 Vaisala Temperature and RH Probe ............................. 42
8.5.8 HC2S3 Rotronic Temperature and RH Probe ............................ 43
8.5.9 HMP155A Vaisala Temperature and RH Probe ........................ 44
8.5.10 CS100 or CS106 Vaisala Barometric Pressure Sensor ............... 44
8.5.11 Texas Electronics Tipping Bucket Rain Gages (TE525,
TE525WS, TE525MM) .......................................................... 45
8.5.12 TB4, TB4MM, or CS700 Rain Gage ......................................... 46
8.5.13 SR50A Sonic Ranging Sensor .................................................... 47
8.5.13.1 Beam Angle ..................................................................... 47
8.5.13.2 Mounting Height ............................................................. 47
8.5.13.2.1 Reference Point ..................................................... 47
8.5.13.3 Mounting Options ............................................................ 48
8.5.14 CS616 Water Content Reflectometer ......................................... 50
8.5.15 237 Leaf Wetness Sensor ........................................................... 51
8.5.16 257 Soil Moisture Sensor ........................................................... 52
8.5.17 Enclosure Humidity Sensor ........................................................ 53
8.5.18 Wind Direction Sensor Orientation ............................................ 53
8.5.18.1 Determining True North and Sensor Orientation ............. 53
8.5.18.2 National Geophysical Data Center Web Site ................... 55
9. Maintenance and Troubleshooting .......................... 56
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