Field Notes

<--2005-02-26 12:50:00 | 2005-03-09 10:20:00-->
Phenocam link: Searching...

Tonzi: 2005-03-04 15:31:00 (DOY 63)
Author: Ted Hehn
Others: Hank

CO2 profile system down. Pump motor not functioning.
Discover short in power lead line: spring loaded inline fuse has intermittent failure - remove fuse holder go without since DC/DC converter has input fuse to protect from catastrophic failure.

15:31span LI820 twicw all apears well.

17:04 Start computer and run task manager. Notice that CPU usage is at 100% with PC208 tasks initiating both Winflux and WebCam. Remove PC208 tasks that initiate these programs and placeshortcuts in Windows "Startup" folder. CPU usage at 50-60%.

Edit CR23x6program to output tower flux system voltage as last output.

Floor
17:57 RemovePC208 task to boot Winflux and place shortcutin Startupfolder
Batt V = 12.7
Solar A = 0.2
Load A = 3.0

Vaira
18:30
Batt V = 12.1
Solar A = 0
Load A = 2.5
charge status LED on yellow

Tower
Saturday 09:14
LI7500 traces both at 5 volts with negetive spiking variances

Remove LI7500 #35 and install #418

Change vertical angle of LI7500 from 45 degrees to 75 degree to keep birds and their "STUFF" from contaminating the optics.

Begin diagnostics on CR10x7 failure - voltage ranges from dark = 11.5; noon = 14.5. Also appears to be correlation between 05:00hr failure and low voltage condition.

The datalogger therefore appears to be malfunctioning

Batt volts at tower base measured with DMM = 13.58. Voltage measured at CR10x7 is 13.38. Power loss = 0.2 x 24= 12AHr

17:02 Saturday leave tower site

Floor 18:17

Communication with all data loggers is reestablished. Leave site

Sunday 8:10

Vaira all appears well.

Download Moe's operating system to aux drive. This will be placed on H205-3.

Note that "System Volume" folder permissions must include Administrator with Full Control to download copy.

10:39 Remove sonic #28 and install #23 tested to spec on 9Oct2003. Note that a RS232surge supressor was installed to break ground loop that is a problem for Gill sonic #23

11:15 Note that sysvolts on cr23x3 is unstable at reads 2.8-3.0 chech this out

CR23x3 lithium batt volts = 2.6066

Soil thermocouple #1 has signal leads in reverse polarity mode - corrected.

14.2 Batt V
26.5 solar amps
1.9 Load amps

Floor
13:20 upload all logger programs edit to include inloc lables when viewing in PC208

13:25 loose communication with cr108x - begin diagnostics
Note: When uploading cr10x7 program it takes a long. long time and until it is complete communication with otherloggers is not possible.
Remember that the cr10x7 program has a loop that requires no less than 1004 seconds to cycle thru and until the cycle is complete no communication
is possible.

Upload cr10x2.dld and relable all inlocs. Note: File from Siyan that defines output lables is not correct. The label "Panel Temp" is in reality the AM25T MUX reference temp

Tighten all solar panel at floor system

14:00leave site

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