Campbell Scientific UT20 and UT30 Tower-based Weather Stations - Manual (Page 9)

Table of Contents
9.1 Maintenance ....................................................................................... 56
9.1.1 Instrumentation Maintenance ...................................................... 56
9.1.2 Batteries ...................................................................................... 56
9.1.3 Desiccant ..................................................................................... 56
9.1.4 Sensor Maintenance .................................................................... 57
9.2 Troubleshooting ................................................................................. 58
9.2.1 No Response Using the Keypad.................................................. 58
9.2.2 No Response from Datalogger through SC32B or Modem
Peripheral ................................................................................ 58
9.2.3 NaN Displayed in a Variable ...................................................... 59
9.2.4 Unreasonable Results Displayed in a Variable ........................... 59
10. Standard Software Installation ................................ 59
10.1 Datalogger Program ........................................................................... 59
10.2 Weather Station or Datalogger Support Suite .................................... 60
10.3 Quick Start Review ............................................................................ 60
Appendix A. RFM18 Base Dimensions ..................... A-1
Figures
4-1. Effect of structure on wind flow .......................................................... 6
5-1. UT10 tower .......................................................................................... 7
7-1. UT20/UT30 weather tower .................................................................. 9
7-2. Guy anchor locations ......................................................................... 10
7-3. J-bolt template assembly .................................................................... 11
7-4. Positioning the J-bolt in concrete ....................................................... 11
7-5. UT20/UT30 mounting foot detail view .............................................. 12
7-6. B18 concrete mounting base .............................................................. 14
7-7. RFM18 flat roof mounting base ......................................................... 14
7-8. UTEYE eyebolt guy anchor ............................................................... 14
7-9. UTDUK duckbill guy anchor ............................................................. 16
7-10. Guy wire attached to tower ................................................................ 16
7-11. Guy wire/turnbuckle attached to UTEYE anchor .............................. 17
7-12. Ground rod and clamp ........................................................................ 17
7-13. Tower grounding clamp ..................................................................... 18
7-14. Top view of tower .............................................................................. 19
7-15. CM210 crossarm-to-pole bracket (top) is included with the
crossarm for attaching the crossarm to the tower’s mast or leg ...... 19
7-16. CM225 Solar Radiation Mount with a LI2003S Leveling Base
and LI200X Solar Radiation Sensor ............................................... 20
8-1. Enclosure brackets configured for a tower mount .............................. 21
8-2. This exploded view shows the components of a “-TM” bracket
option .............................................................................................. 22
8-3. An enclosure attached to two tower legs ............................................ 22
8-4. BPALK 12 volt power supply ............................................................ 24
8-5. CR1000 and PS100 mounted to an enclosure backplate .................... 25
8-6. SP10 solar panel ................................................................................. 25
8-7. Routing and wiring sensor leads to the datalogger ............................. 26
8-8. The NL115 connects to the CR1000’s peripheral port allowing
data to be stored on removable Compact Flash cards ..................... 27
8-9. COM220 modem with surge protector............................................... 28
8-10. SRM-5A Rad Modem and SC932A Interface .................................... 30
8-11. SRM-5A wiring ................................................................................. 31
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