SPL Notes


------------------------------ 2011:
11-08-18        Ty picks up new HS1 in Boulder on 8/12, connected to aircoa on 8/14, HS1 valve fully opened on 8/18.
11-08-04        Site visit (BBS, SpB), swapped AIRCOA and moved to new location.
11-08-02        HS1 runs out (didn't realize it).
11-04-25        Site visit (SpB), swapped the 4 calibration gases.

------------------------------ 2010:
10-12-09        Looks like the micropump died.  aircoa program stopped (SpB).
10-10-22        Site visit (SpB), reconnected HS2, did tune-up, returned 4 near-empty gas cylinders to JeffCO.
10-07-06        HS2 at 1000 psi (appears to be leaking).  HS2 valve closed; AIRCOA still running with 3 cal gases.
10-06-22	Ian swapped the four cal gas cylinder (LT at 750 psi).
10-03-24        Site visit (SpB), fixed two "major" leaks (check valve replaced & loose ferrule on tee off sampling manifold).  
                Also fixed loose nafion connection (which is why sample flow was so low). Transported four new cal gas cylinders 
                to the site.
10-02-03        Ian swapped in a replacement LI-820.  AIRCOA up and running.

------------------------------ 2009:
09-09-21	LiCor failed.
09-06-03	Memory stick filled up - cleared and rebooted same day.
09-04-25        Memory stick filled up on 09-04-25.  Communication down due to bora IP change.  Cleared and rebooted on 09-05-01 (SpB).
09-04-05	Ian replaced 4 cylinders.
09-03-26	HS2 ran out.
09-03-23	LS2 ran out.
09-03-16	LS1 ran out.
09-03-04	Memory stick filled up.  Cleared and rebooted on 09-03-06.
09-02-08	HS1 ran out.

------------------------------ 2008:
08-11-26	Ian installed micropump.  Restarted program.
08-09-24	Stopped program
08-09-15	Micropump appears to have died
08-08-26		Memory stick filled up, cleared on 08-08-28
08-03-28		Memory stick filled up, cleared on 08-04-02
08-02-12	Tweaked LT inlet needle valve slightly to reduce total flow
		and try to even out the flow over the course of an LT measurement
08-02-07 	Updated to new aircoa program (ascii dates)
08-01-26	Replaced 4 cal gases, unplugged line 2, replaced Li-820.
		Accidentally left sample MFM on sample purge valve exhaust.  Ian fixed on 1/28.
08-01-01	Li-820 started reporting 1000 and -50, which indicates a
		failed source.  System powered down on 08-01-06.

------------------------------ 2007:
07-12-06	Replaced failed micropump. Replaced both molecular sieves. 
07-09-29	Lightning strike took out Prometheus.  Replaced on 07-11-07,
		got internet working and cleared up memory stick on 07-11-09.
07-08-29	Memory stick filled up.  Fixed and rebooted on 07-08-30
07-06-29	Memory stick filled up.  Fixed and rebooted on 07-07-01
07-02-28	Memory stick filled up.  Fixed and rebooted on 07-03-04
07-02-08	Network services restored. 
07-01-11	At SPL 1800 LT, replaced cylinders, replaced pump to fix mismatched flows, recal'd Li820, and tuned.
		System still not on network, left running ~2200 GMT on 070112
07-01-05        Cylinders out, 14:30 Local, closed HS2, HS1, LS1, LS2 valves and left
		running with only LT (for comparison to Hg instrument)

------------------------------ 2006:
06-12-20	Wireless network shut down due to system work.
06-12-01	Communications failed 06-11-24. G. Hallar cycled power on AIRCOA and wireless router and communications restored.
06-11-16	Communications failed 06-11-14. G. Hallar cycled power on AIRCOA and wireless router and communications restored.
06-10-29 	Memory stick filled up.  Fixed and rebooted on 06-11-02
06-09-20        Fix high pressure leak. Zero and span Licor. Tune-up. 
06-08-18	New LT (JJ18942). Found Line 3 Beswick filter plugged with black material. Replaced. 
		Both mol sieves replaced to reduce RH.
06-03-02	Site visit, opened box and started work at 00:14 UTC on 3/3 - replaced 4 calibration cylinders, nafion #1, and did 
		leak checking (high pressure leak of 0.08 kPa/min still not fixed).  Tuned system and restarted ~ 21:05 UTC on 3/3.
06-02-02	Continuing efforts to unplug Line 3 and fix leaks. Success with Line 3 ice blockage.
		Replaced 3 um filters at inlets with 30 um polypropylene filters on all 3 lines
		Low pressure leak fixed by replacing HS2 solenoid
		High pressure leak reduced by  working on both Nafions, but still a bit too high 
06-02-01	Site visit to unplug Line 3, fix low and high pressure leaks.

------------------------------ 2005:
05-10-14	Second mol sieve spent, first one one third full. Replaced both.
		Replaced upstream Nafion, no change in humidity.  Changed downstream Nafions, and humidity came back down to 2% over 1 day.
		Downstream Nafion was removed from FEF on 5/13 for a leak.  High P leak check now 0.06 (dropping to 0.04 over several weeks.
		Low P leak check now 0.05 and climbing to 0.08 over several weeks suggesting a failing Numatech.
05-09-24	At around 1200 GMT, something in drying system failed and humidity climbed to around 7% RH over next several days.
05-09-01	Ran sample lines. Line 3 is on the south tower, Lines 1 and 2 on the north tower. 
05-08-31 Installed AIRCOA D. Fixed pin on Humitter connector. Ran overnight sampling room air (sample lines not yet installed).