Britt INTERCOMPARISON SYSTEM FIELD NOTES, 
     --------- Monday August 9, 2004 -------
       (CU and HYDRA Times in MST, USGS and AIRCOA Times in UTC)

               Tank Pressures with Valves
             Cylinder    Closed     Open
             --------    -------    -----	
             A FA02374   1590 
             B FA02361   1460
             C FA02340   1560


CU Tower
10:35:00 MST	On level 5. P = 21 psig. Switched profile to manual. Toggled C2.
10:37:00	3-way to ICS, Cylinder A, adjust regulator to 25 to get 21 psig. 
		Vco2 = 1.314
10:41:00	Step 4-way to B, regulator adjusted to 22 to get 21 psig. 
		Vco2 = 1.149 
10:44:00	Step 4-way to C, regulator adjusted to 22 to get 21 psig. 
		Vco2 = 1.220 
10:47:00	3-way to span tank. 
		Vco2 = 1.277. 
		Sean did a zero.  
		Vco2 = 0.009
10:50:00	Switched profile to auto. Toggled C2.


USGS Tower
17:59:38 UTC	*,6,A,A says line 6 but flowmeter dip indicates differently, noted in case important:
		datalogger	flowmeter dip	Pressure
		9		R5
		8		R13
		10		R11
		11		R6		558
		13		R8
		14		14		553
		1		R1
		3		3
		4		9
		also, R7 (line 'T') has no flow
		Attached line.
18:06:00	Switched 3-way to start ICS, Cylinder A
18:08:00	Adjusted regulator to 7 to get 556. CO2 reading is 394 and oscillating by ~ 2 ppm.
18:10:00	Pressure 559, CO2 394.8 and steady.
18:10:35	Step 3-way to B.
18:11:30	Done adjusting regulator to 0 to get 566.
18:13:00	Pressure 564, CO2 327.0 and steady.
18:13:35	Step 3-way to C.
18:15:00	Done adjusting regulator to 0 to get 559, CO2 355.5 and steady.
18:17:00	Pressure 555, CO2 355.6 and steady.
		Switched 3-way back to sample from towers, line disconnected.
		System on line 13 (flowmeter dip = R9)


HYDRA at Pine Tower
12:14:00 MST	On line D-S1. Ball Flow = 29. Pump Pressure = 9 psi.
12:15:15	Broke sample connection to connect rotators.  On line D-S2
12:17:00	Done adjusting regulator to 6 to get Flow = 31, Pressure = 9 psi.
		CO2 = 53.7 ppm.  LiCor P = 71.39 kPa
12:21:00	Step 3-way to B.			
		Adjusted regulator to 0 to get 30/9/-/71.39 (ball-flow / pump P / CO2 / LiCor P)
12:22:50	HYDRA thinks it's on D-S7.  
		30/9/10.00/71.39
12:24:00	Step 3-way to C. Adjusted regulator to 0 to get 30/9/-/71.38
		CO2 = 28.72
12:27:30	HYDRA switched to C1. -/-/42.1/71.38
12:28:00	Reconnected sample connection.
		HYDRA on S1, LiCor P = 71.38


AIRCOA A Willow site
20:14:37 UTC	valves 5 and 6 off, 11 and 12 on (fast-flow and guest cal)
		on gas A, set regulator to 10 psi, LI820 P = 80.6
20:16:33	valve 12 off.  
		P = 72.46, CO2 = 373.8
20:18:30	Step 3-way to B and valve 12 on.
		Adjusted regulator to 8 to get P = 80.99
20:19:30	valve 12 off.  
		P = 72.44, CO2 = 307.5
20:21:30	Step 3-way to C and valve 12 on.
		Adjusted regulator to 8 to get P = 80.89, CO2 = 338.5
20:22:30	valve 12 off.  
		P = 72.4, CO2 = 335.5
20:24:30	Entered command of 'r' to resume computer control.
		On line 4 (valve 3)
		To line 5.  P = 80.69.
		Valve 12 off.  P = 72.4.
		Disconnected rotator quick-connect and replaced with male quick-connect vent.


AIRCOA B Aspen site
21:13:40 UTC	valves 3 and 6 off, 11 and 12 on (fast-flow and guest cal)
		on gas A, set regulator to 10 psi, LI820 P = 80.6
21:15:40	valves 6, 4, and 12 on (fast flow on line 5).  P = 78.76.  Flow = 2.9.
		valve 12 off.  
		P = 72.12.  Flow = 1.54.
21:16:15	valves 4 and 6 off, 11 and 12 on 
		P = 78.2, Flow = 2.92
		Adjusted regulator A to 10 to get P = 78.43, Flow = 2.94
21:18:00	valve 12 off.  
		P = 72.14, CO2 = 403.0, Flow = 1.55
21:20:00	Step 3-way to B and valve 12 on.
		Adjusted regulator to 8 to get P = 78.29, CO2 = 334.8
21:21:05	valve 12 off.
		P = 72.13, CO2 = 332.5
21:23:30	Step 3-way to C and valve 12 on.
		Adjusted regulator to 8 to get P = 78.23, CO2 = 364.0, Flow = 2.91
21:24:30	valve 12 off.  
		P = 72.13, CO2 = 362.0, Flow = 1.55
21:26:30	Entered command of 'r' to resume computer control.
		Disconnected rotator quick-connect and replaced with male quick-connect vent.