* Britt/Andy INTERCOMPARISON SYSTEM FIELD NOTES, 
     --------- Friday May 14th 2004 -------
       (note, all times shown in MST)
(CU Times are based on my watch time, but in MST)

      my watch time= 19:52:00 MST
   CU computer time= 19:51:35 MST (ie, my watch is about 25 sec fast)

               Tank Pressures with Valves
             Cylinder    Closed     Open
             --------    -------    -----
             A FA02374    1700
             B FA02361    1850
             C FA02340    ?

CU          18:16:00   switch profile to manual                
CU          18:19:00   3-way to ICS
CU          18:20:18   step 3-way           A  (increased pressure)
CU          18:20:18   step 3-way           A  (start A)
CU          18:23:18   step 3-way           B  
CU          18:26:18   step 3-way           C  (co2 ~1.20 mV, p~18 psi)
CU          18:29:18   stop ICS
CU          18:29:40   step 3-way           A  (back to A, co2 ~1.294 mV)
CU          18:30:50   step 3-way           B  (back to B, co2 ~1.134 mV)
CU          18:32:13   step 3-way           C  (back to C, co2 ~1.205 mV, p~20psi)
CU          18:35:10 MST --- did a zero check of li-6251.

** note: the below sampling is done after changing the dessicant in the CU system.
CU          19:24:00   3-way to ICS
CU          19:25:17   step 3-way           A  (co2~1.31)
CU          19:28:00   step 3-way           B  (start B, P a bit low)
CU          19:28:45   step 3-way           B  (P increased to 20, co2~1.160 mV)
CU          19:30:00   step 3-way           C  (co2 ~1.225 mV)
CU          19:32:35 MST --- did a zero check of li-6251.

USGS Time Check-- didn't do this...(times shown are based on the USGS computer time)

USGS        19:00:00   arrived at li-7000 shack.
USGS        19:03:00   attached line 
USGS        19:04:30   run start            A  P~617mbar, CO2~441.7 ppm, h2o~0.931
USGS        19:08:00   step 3-way           B  adjusting pressure.
USGS        19:10:00   start                B  P~621, CO2~370.0, h2o~0.891
USGS        19:13:00   step 3-way           C  adjusting pressure.
USGS        19:15:00   start                C  P~626, CO2~399.7, h2o~0.883
USGS        19:18:00   3-way back           diconnected.