Andy INTERCOMPARISON SYSTEM FIELD NOTES, 
     --------- Tuesday, July 20, 2004 -------
       (note, all times shown in MST)
(CU Times are based on my watch time, but in MST)


               Tank Pressures with Valves
             Cylinder    Closed     Open
             --------    -------    -----	
             A FA02374    		1740/24
             B FA02361    		1760/26
             C FA02340    		1710/22


AIRCOA A Willow site
13:09:00	Fast flow on Cylinder A (valves 11 + 12)
13:10:00 	Switched to slow flow (valve 12 off)
		Flow drops to 1.408-1.438 VDC
14:12:05	Switch to Cylinder B, fast flow (valve 12 on)
14:12:35	Slow flow, (valve 12 off) CO2 reads 301-320.
14:14:00	Switch to Cylinder C, fast flow
14:14:30	Cylinder C, slow flow. CO2 reads 332-350.
14:16:00	Resume relay program control
14:18:00	Cylinder A, fast flow
14:18:30	Cylinder A, slow flow. CO2 reads 366-385.
14:20:30	Cylinder B, fast flow
14:21:00	Cylinder B, slow flow. CO2 reads 301-322.
14:23:00	Cylinder C, fast flow
14:23:30	Cylinder C, slow flow.
14:25:30	Resume relay program control.

CU Tower
15:05:00	P = 21 psig. Switch profile to manual. Toggle C2.
15:09:00	3-way to ICS, Cylinder A, adjust gauge to 21 psig. 
15:11:30	Step 4-way to B
15:12:00	Pressure adjusted to 21.  
15:14:40	Step 4-way to C
15:15:00	Adjusted pressure to 21.

USGS Time is 15:24:00, All reported times here are datalogger times

15:24:00	Attached line. Pressure reading on LiCor panel is 46.51 kPa
15:25:00	Switch 3-way to start ICS, Cylinder A
15:26:00	Adjust pressure on A to 46.29 kPa, CO2 reading is 379.8
15:28:00	Step 3-way to sample gas B, adjusting pressure
15:29:00	Pressure stablized at 46.90 kPa
15:31:00	Step 3-way to sample gas C, adjusting pressure.
15:32:00	Pressure stablized at 46.70 kPa
15:35:30	Switch 3-way back to sample from towers, line disconnected