Field Notes

<--2004-12-15 13:50:00 | 2004-12-16 12:48:00-->
Other sites visited today: Tonzi

Tonzi: 2004-12-16 12:32:00 (DOY 351)
Author: Ted Hehn
Others:

Summary: Added four batteries to Tower battery bank, Floor cow fence off, fix coms to CR10x7 Tower co2 profile, Tower co2 profile pump off due to blown fuse - replace, restarted, HMP fell out of radiation shield - replaced and upgraded fan

When: Thurs 16Dec04 JD-351
Where: Tonzi Ranch
Who: Ted Hehn
Weather â€“

Trip Purpose General site visit

Tonzi Ranch:
Floor Friday 12:32

Regulator
Batt volt = 13
Array amp = 22.6
Load amp = 2.9

Install 4 more batteries on flux system to bring total to 12 from 8

Fencer at floor system was turned off.

Floor PC unable to communicate with CR10x7 (CO2 profile logger) begin diagnostics:
1. Connection with cr10x8 and cr23x6 are fine. CR10x7 is on same coax lead so replace cable from main line to cr10x7 â€“ no help
2.

Tower 13:03

CO2 profile pump not working. Sample flow temp at 26, press 1008 mbar.
Fuse for the dc/dc converter for pump was blown. Replace 2 amp fuse with 2 amp. Note that the intake solenoids and cooling fan are still functioning because they are connected to power on the input side of pump dc/dc converter.

Replace 1/2 amp fuse on pressure controller dc/dc converter.

Pressure = 949
Temp sample = 41.2
Temp cell = 50.6
Flow = 3 lpm

T&RH probe had fallen out of rad shield. Replace fan and 12 rad shield plate. This was the first shield I had modified and I just removed one plate. The newer design has a hole drilled in plate to allow the fan to reside hidden inside the plate.

Field Data

No tank data

No TZ Well data found

No TZ Moisture Point data found

No VR Moisture Point data found

No TZ grass heigth found

No VR grass heigth found

No TZ Tree DBH found

No water potential data found

No TZ Grass Biomass data found

No TZ OakLeaves Biomass data found

No TZ PineNeedles Biomass data found