Field Notes

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Tonzi: 2004-12-18 10:36:00 (DOY 353)
Author: Ted Hehn
Others:

Summary: Still troubleshooting Tower co2 profile system and coms - fixed I think

When: Thurs 18Dec04
Where: Tonzi Ranch
Who: Ted Hehn

Saturday 10:36
No flow through CO2 profile system and fuses are in tact.
10:53 cr10x7 was not functioning so all intake solenoids were closed and consequently no flow. Press *0 and logger begins to function and all appears well.

Connect cr10x7 to MD9_8 with extension rs232 cable and communication is established. This indicates that cr10x7 is functioning correctly.

Remove coax connected to md9_7 and connect to md9_8 and I am able to establish communication with cr10x8. This indicates that the coax cable from the floor PC to MD9_7 is functioning correctly.

Replace coax to MD9_7 & unplug ribbon cable from MD9_7 and plug in rs232 cable and connect to cr10x8. This indicates that MD9_7 is functioning correctly.

Remove rs232 cable from cr10x8 and connect to cr10x7 and communication is established. This indicated that the ribbon cable was not functioning.

Reinstall blue ribbon cable and communication is established. Appears some kind of system lock up that was corrected by removal and reinstallation of blue ribbon cable. It is possible that the lack of a shield on the ribbon cable may be at cause.

Communication to CR10x7 is now reestablished.

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