HDP Notes

06-04-19 and 20	 Installed AIRCOA E with two inlet lines.  Fixed positive pressure leak (0.2 kPa/min), but it returned several hours after leaving site.
06-07-06 S. Schaeffer visits to fix high pressure leak check. Replaces broken
fitting but leak still present. Leaves unit on, but communications appears to
have failed. 
06-07-12  S. Schaeffer returns, replaces Bev-a-line to micropump. Leak rate
drops to ~0.1 kPa/min. Communication restored.
06-08-22  00:21 changed settings to purge nafion with line 2 during low pressure leak checks instead of line 1

06-09-25  High pressure leak rate suddenly jumps from -0.09 kPa/min to -2.2
kPa/min. No known visitors. 
06-10-11  Updated code to new version (lll) in anticipation of switching flow
meter wires.  RH jumped ~ 0.65.
06-10-11 HDP site visit. Replaced "Air" solenoid to fix leak. Zero and span on LI820. Tuned up. 
06-12-24 Low P leak check suddenly jumps to -0.25 kPa/min. 

07-02-04 G. Poulous onsite.  Breath test and outer line connections tightened.
07-03-07 B. Stephens on site.  Replaced 4 calibration cylinders.  Replaced air
select solenoid (6) which fixed a leak.  Switched lines 2 and 3 at bulkheads
to diagnose offset. Fixed settings2.txt to go to line 2 instead of line 1
during cals.
07-07-10 Micropump failed.  Stopped program on 7/11
07-07-18 D. Bowling replaced pump, tuned up. Humitter appears to have
intermittent connection problem.
07-12-16 Memory stick filled up.  Cleared and rebooted on 07-12-18.  Somehow
pen drive did not mount.  Manually mounted and restarted program on 07-12-19.
08-01-25 Both HS2 and LS2 appear to have run out.  Stopped program on 08-01-30.
08-02-23/24 Replaced 4 calibration cylinders.  Replaced Li-820 (new = S/N CGA-689), 
mole-seives, and humitter.  Replaced line 2 and 3 5 um line filters and rebuilt 
inlet manifold to put filters upstream of needle-valves.  Replaced inlet filters and 
repositioned 17.7 m inlet.  Swapped lines 2 and 3 back to original configuration 
(line 3 = 17.7 m west inlet).
08-07-15 Found NTP was not working.  68 Sec slow.  Set manually
08-08-28 NTP still not working.  5:05 slow.  Set manually at 20:43:30
08-09-01 Appears to have ingested liquid water during intense storm ~ 5:30 AM
UTC.  Some components recovered, but flow low, V6 leaks, and Li820 cal off.
Stopped program and commented out line in rc.sysinit 08-09-08.