Andy INTERCOMPARISON SYSTEM FIELD NOTES, 
     --------- Tuesday, August 17, 2004 -------
       (CU, AIRCOA A and HYDRA Times in watch time MST, USGS Time in Datalogger time, AIRCOA B time is Prometheus time )
		USGS Datalogger time = 16:04 when Watch time = 17:07:58
               Tank Pressures with Valves
             Cylinder    Closed     Open
             --------    -------    -----	
             A FA02374   1600 
             B FA02361   1480
             C FA02340   1580

AIRCOA A Willow site
11:00 MDT	Found MFM7 completely loose from PC board.
11:17		Shut unit down to resolder MFM7 to board
12:07		Powered unit back up, LI820 P = 72.369
12:26		Take control using palmtop
12:27		Valves 11 and 12 on (fast-flow and guest cal)
		adjusted all regulators so that LI820 P = 72.4 +/- 0.5
12:37:30	Set to gas A, V11, V12 open, P = 72.3, CO2 = 373.1 - 373.6
12:38:38	V12 off
12:42:00	Step 3-way to B and valve 12 on, P = 72.2, CO2 = 308.0
12:43:30	V12 off, P = 71.8, CO2 = 306.3 - 307.5
12:46:30	Step 3-way to C and valve 12 on.P = 72.45, CO2 = 334.0-334.8
12:50:00	V12 off. P = 70.9
12:53:30	Finished adjusted regulator so that P = 72.1, CO2 = 334.2 - 334.8
12:56:00	Starting to thunder, gotta go...

14:10		Take control again to set cal cylinder regulators
14:22		Select Cal1 (V7) and adjust regulator to get LI820 P = 72.18,  regulator set to 7.8
14:24		Select Cal2 (V8) and adjust regulator to get LI820 P = 72.19,  regulator set to 7.8
14:25		Select Cal3 (V9) and adjust regulator to get LI820 P = 72.208,  regulator set to 7.8
14:38		Finish replacing Cal4 regulator to eliminate temperature dependance, LI820 P = 72.140, regulator set to 7.8

HYDRA at Pine Tower
15:15 MDT	Connect 3-way valve and quick connect between HYDRA and Instrument box
15:34		On line S1. Sample Ball Flow = 37. Dry Flow = 30. Ref Flow = 4. Pump Pressure = 8.8 psi.
15:45		Switch to gas A. 
15:46		Done adjusting regulator to get Flow = 37, Pressure = 8.7 psi.	
		CO2 = 55.79 - 55.89 um/m. H2O = 1.080 um/m. LiCor P = 71.09 kPa, T = 21.87
15:49:30	Step 3-way to B. Adjusted regulator to get Flow = 37, Pressure = 8.7 psi.
		CO2 = 12.65 um/m. H2O = 1.060 um/m. LiCor P = 71.08 kPa, T = 21.69
15:52:30	Step 3-way to C. Adjusted regulator to Flow = 37, Pressure = 8.8 psi.
		CO2 = 31.47 um/m. H2O = 1.066 um/m. LiCor P = 71.07 kPa, T = 21.68
15:55:20	3-way back to HYDRA, System on D-S9


CU Tower
16:33:45 MDT	On level S5. P = 20.8 psig. Switched profile to manual. Toggled C2.
16:36:45	3-way to ICS, Cylinder A, adjust regulator to get 21 psig. 
16:40:00	Vco2 = 1.267
16:41:00	Step 4-way to B, regulator adjusted to get 20.6 psig. 
16:43:00	Vco2 = 1.106 
16:44:10	Step 4-way to C, regulator adjusted to get 20.5 psig. 
16:46:45	Vco2 = 1.174
16:52:15	Switched profile to auto. Toggled C2.


USGS Tower
16:14:00 MST	Pressures seem to depend on line being sampled, noted in case important:
		flowmeter dip	Pressure
		B left		551.9
		B right		540.28
		6M left		551.93
		6M right		556.26
		M left		547.68
		6M middle	526.3
		2M left		552.93
		2M right		549.27
		1M left		551.60	
		1M right		548.60
		M right		545.27
16:14:00	Switched 3-way to start ICS, Cylinder A
16:16:00	Adjusted regulator to get 544.94. CO2 reading is 393.8.
16:18:00	Step 3-way to B.
16:19:00	Done adjusting regulator to get 550.27. P =  550.27, CO2 = 326.0.
16:21:00	Step 3-way to C.
16:21:30	Done adjusting regulator to get 550.6, CO2 = 354.5.
16:24:00	Switched 3-way back to sample from towers, line disconnected.
		System on line 2 (flowmeter dip = 6M right)

AIRCOA B Aspen site
00:06:31 UTC	Connect palmtop. Sampling air, slow flow. Flow = 1.50 out, 1.58 in, P = 71.568
		After switching to High flow, Flow = 2.985 out, Flow = 2.968 in, P = 78.030
00:13:16	Took control. Open Cal1. Adjust regulator to 10. 
00:17:25	P = 78.138  
00:19		V12 turned off.
00:20		Found V7 off, too.
00:20:43	Switched V7 (Cal1) on, P = 71.745
00:23:00	Switch to gas B, lost serial communication. 
00:26:00	Reestablish communication. V11, V12 open, P = 78.138
00:28:00	Close V12, P = 71.741,  CO2 = 324.73 - 326.65
00:31:03	Open V12, switch to gas C, P = 78.030
00:33:15	Close V12, P = 71.727, CO2 = 356.0 - 356.7, Flow = 1.528
00:35:50	Return unit control to Prometheus
00:37		Retake control to adjust Cal tank pressures
		Cal1 (V7) = 71.646, Cal2 (V8) = 71.714, Cal3 (V9) = 71.727, Cal4 (V10) = 71.714
00:42:33	Return unit control to Prometheus