final safs cal!!!

wavelength

100616 03:50
-.35 2.11 4.76

uh10 04:02 v max 3.981 10^7
uh11 04:17 v max 3.821 10^7
uh12 04:35 v max 3.941 10^7

on the flip side

20100614 18:53 -18:25 Safs facing down

19:43 20:20 NCAR 941 facing up

GPT & BLC Testing

22:05 UTC Begin equilibrating 100 ppb NO @ 5000 sccm with 15.7% lamp O3 (nominally 50 ppb in 2500 sccm)

00:06 UTC Begin NOxy cal GPT point

00:17 UTC Not much NO2 generated (if any), increased O3 to 18.1% lamp (nominally 100 ppb in 2500 sccm) to see the response

00:38 UTC Increase O3 lamp to 19.8%, some increase in NO2 (~3 ppb) between previous level and the first

01:10 UTC Unplugged power from BLC, NOx dropped ~3 ppb

01:22 UTC Plugged BLC power back in, no change

01:28 UTC Replugged BLC power, lamps back on

01:31 UTC Start zero air

01:38 UTC Resume sampling

safs cal 20100611

20100611 wavelength and field cal

100611_0408
wvl cal #1
-2.07 2965.21
0.60
2.71

spectral cal
uh10 100611 0418 2.991 (i think the mercury lamp was off, but not removed)...sorry.

Old Cal Factor = 32664, New Cal Factor = 32641 100611 1905

100612 0336
wvl cal #2 0.31 2.74 5.44

spectral cal
uh 10 100612 0347 4.105 10^7
uh 11 100612 0402 3.964 10^7
uh 12 100612 0418 4.086 10^7

2nd HONO test

Results from HONO Testing (6/10/10 ~0335-0535 UTC)

NOy = 23.5 ppbv in 4 slpm (chemiluminescence)
NO = 2.6 ppbv in 4 slpm (chemiluminescence)
NO2 = 2.25 ppbv in 4 slpm (cavity ringdown)
HONO = NOy - NO - NO2 = 18.65 ppbv HONO in 4 slpm
HONO measured by IBBCEAS = 17.8 ppbv in 4 slpm

filter change

changed filters on NO/NOx, SO2, and O3 while feeding NO cal to Bro's inlet via the inlet cal line.

SO2 zero filter change

changed SO2 this morning ~17:30 UTC

JF

WVL Cal #1
06/08/10 03:48 -0.56 1.49 3.71



UH10 06/01/2010 04:00 UT Max V^7 = 4.129
UH11 06/01/2010 04:14 UT Max V^7 = 3.962
UH12 06/01/2010 04:30 UT Max V^7 = 4.078

HONO Cal Test #1

At 20:08 LT to 21:05 LT (03:08 -04:05 UT) spiked zero air flow (4 lpm) with approximately 20 cc/min of HONO cal. Looked like HONO cal flow had some NO and NO2 in it.

Also saw flow drop rapidly over time. Patrick thinks that needs to swap out critical orifice for MFC. Going to do that and then re-try this on Monday night.

safs cal 20100603

wavelength cal

100604_0349

-.82 1.20 3.61

spectral cal
lamp time v max
uh10 0401 4.114 10^7
uh11 0416 3.996 10^7
uh 12 0439 4.105 10^7

Changed NO/NO2, Ozone, SO2 teflon filters

At 02:59 UT (19:59 LT) changed all three filters. Only took 2 minutes.

All three filters are very dirty. Probably should change the next batch sooner.