- 3: OZONE, Site 1, Thu 09-May-1996 21:28:18 GMT, Ozone signals
Below is an initial list of signals associated with
the ozone system. The ADAM, cosmos, will be setup to handle
16 analog channels.
name voltage range sample rate description
O3teco 0 - 10 Vdc 1 hz TECO slow ozone (ppbv)
O3fs 0 - 5 vdc 20 hz fast ozone, FS,
O3ff 0 - 5 vdc 1 hz FS sample flow rate (slpm)
O3ft 0 - 10 vdc 1 hz FS reactor temperature (C)
O3fn 0 - 5 vdc 1 hz FS nitric oxide flow (sec)
O3fp 0 - 10 vdc 1 hz FS reactor pressure (mb)
As soon as I have conversion formulas I will add them to logbook.
Present plan for channel assignments and gains/offset are:
channel # gain/offset signal
0 1 / 0 fast ozone
1 1 / -5 FS reactor temmperature
2 1 / -5 FS reactor pressure
3 1 / 0 FS sample flow rate
4 1 / 0 FS nitric oxide flow
5 1 / -5 TECO slow ozone
NOTE: the gain setting and offset for the fast ozone may change to 2 and -5
depending on the resolution needed.
- 280: OZONE, Site 1, Tue 16-Jul-1996 21:40:03 GMT, chem shelter in place
We've just installed the chem shelter about 1/2 way between the tripod and
the adam at station 1. We removed 5 corn plants to get it into its present
location. We also knocked down about 1 plant/row getting it in place, which
we attempted to straighten. power, and data lines are now connected - we
plan to put the Datel voltage calibrator on some of the channels later
(perhaps even tonight).
I agonized over this location for the shelter, and actually pulled up another
5 plants (which I also attempted to replant) at the tripod itself when I
was initially thinking of the chemistry needs (short tubing) only. The
present location should be reachable by a 10m inlet tube. My concern about
getting closer was that the heat exhaust of the air conditioner could
contaminate the hygt sensors. Also, the first location was very close
to the pressure port (would it induce a flow anomoly?) and close, but not
in, the surface temperature field of view.
- 327: OZONE, Site 1, Mon 22-Jul-1996 22:44:01 GMT, ozone installed, but not running
Greg Kok and I spent most of the daty setting up his ozone sensors.
Everything is now installed, but he doesn't have the NO flowing, (because
he wasn't able to get dry ice today), so there is no fast ozone signal.
He now has:
- two inlets strapped to the BPH tube,
- sensors in the chem shelter Steve S. and I installed,
- a big pump sitting on the transformer box with the outflow going through
a garden hose which exhausts on the east side of the darkhorse,
- a bottle of NO laying in the "clearing" along the access path, connected
to the chem shelter by a length of thin stainless steel tubing.
[A lot of stuff scattered around this site!]
We had some trouble with "brown-outs" on the power. I switched power
cables between the adam and chem shelter, resulting in (actually several)
reboots of cosmos. After talking to Kurt, I think I have the best load
distribution I can get, but I'll try to measure currents tomorrow.
- 333: OZONE, Site 1, Tue 23-Jul-1996 23:15:15 GMT, TECO was cleaned this afternoon
Greg didn't like the TECO output, so he cleaned it this afternoon.
The data now look pretty stable to me, but Greg plans to return this
evening to look at it.
- 334: OZONE, Site 1, Tue 23-Jul-1996 23:26:20 GMT, added t.shelter.0m
Greg wants to monitor the temperature in the chem shelter, so I've given
him another channel (106). I changed archive, prep, covar, and channel
configs in $OPS1 and am now rebooting cosmos. Hopefully, everything will
come up well, since I want to leave soon for the day.
- 339: OZONE, Site 1, Thu 25-Jul-1996 15:16:23 GMT, Ozone instruments started
We started both ozone sensors about 0900 local. They had been off last night
to see if cosmos would crash (it did). See the next message for the start-up
procedure.
- 340: OZONE, Site 1, Thu 25-Jul-1996 15:24:57 GMT, Ozone check list
LIFT Ozone Operating Instructions:
GENERAL WARNING:
Whenever entering the cornfield listen for operation of the sample
pump. If the pump is not operating, do not proceed. Position
yourself upwind of the pump and fast ozone instrument, go to the NO
cylinder, and turn off the NO cylinder and regulator valve. Exit
the corn, wait 30 minutes for any NO to dissipate, go to the pump,
keeping yourself upwind of it, and attempt to restart it. The pump
has an automatic thermal overload protection on it. If the pump
cuts out, it will restart automatically when cool. Use caution.
TECO ozone instrument can be left on at all times. Every day,
check that the instrument is on, the pump is on, and that the P/T
button is in.
FAST OZONE STARTUP:
1. Fill PMT cooler with dry ice. If you plan to operate
overnight, it will need a second filling at the end of the day.
2. Turn on fast ozone control box.
3. Turn on sample heater variac
4 Turn on high voltage for PMT (left side of instrument)
5. Disconnect fast O3 signal lead (channel 0), and measure output
voltage with meter. Record dark output voltage on log sheet.
Reconnect signal cable. The BNC connector on the signal junction
box is a bit loose, take care not to twist it when
removing/reattaching the cable.
6. Turn on sample pump at breaker on transformer.
7. Check pressure on fast ozone control box. Turn the rotary
switch by the meter all the way counter clockwise, that position is
blank. clockwise on click is NO flow, then sample flow, then system
pressure.
8. Check sample flow.
9. If sample pressure is greater than 120 and sample flow is less
than 300 do not proceed. There is most likely a problem with the
sample pump. Wait a few minutes to see if the flow/pressure
improve. Otherwise check for leaks.
10. Turn on NO cylinder valve and regulator valve. Record
cylinder pressure and regulator output pressure.
11. Check NO flow at instrument and record setting and NO flow.
12. Record shelter temperature and instrument temperature.
SHUTDOWN:
1. Close NO cylinder valve and regulator valve.
2. Turn off high voltage to PMT tube.
3. Turn off fast ozone control box.
4. Remove any remaining dry ice from the PMT chamber.
5. Make sure that the pump has run for at least 10- preferably
longer, 20 + min after the NO has been shutoff. Then shut the
sample pump off.
- 342: OZONE, Site none, Thu 25-Jul-1996 15:56:01 GMT, Other ozone documents
Greg has given us other documents relevant to ozone operations which I've
put in $ASTER/projects/FLATLAND/doc:
close.dwn - packing instructions for the sensor
spares.lst - list of spare parts kept on site
- 343: OZONE, Site 1, Thu 25-Jul-1996 15:58:07 GMT, Ozone field notes to date
Installation and operation notes-fast ozone in LIFT/FLATLAND '96
7/22/96
Setup system in cornfield at FAO. Install inlet line on tower.
Each ozone instrument has separate inlet line. Inlet line length
approximately 30 ft. TECO inlet line has angle cut on the inlet
end. TECO opertational mid day. Large variation in O3 as measured
by TECO. Cycling of air conditioner causes spikes in O3, probably
humidity problem. Run fast ozone overnight without NO on and no
dry ice on PMT cooler.
7/23/96
Put dry ice on PMT and connect NO. TECO still giving spikes in
data. Approx 14:30-15:30 pull TECO out and change windows. Found
traces of oil on inlet side windows. Clean cells, check lamp
frequency and everything is OK. Freq A=124,522, B=119,734.
Insulate complete length on TECO inlet line.
Approx 18:30 shut system down, remove FO3 driver box and connect
other OMEGA temp readout to twinax on back for connection to data
system. Reinstall entire unit operational about 19:30. Run FO3
overnight with PMT cold, and no nitric oxide. Data system crashed
about 22:30 local time.
7/24/96
Insulated end of heater and reactor for fast ozone. Put dry ice on
system. Started NO about 09:00. TECO data looked good last night.
Rained at least once during the night. Discussions with persons at
the DIAL O3 site indicate spikes in TECO measurements. Need to
check if they correlate with PAM 1 measurements. System shut down
at 17:30 to check if operation causes datat system to crash. Data
system crashed once during the night, so ozone system is not the
cause.
7/25/96
Start TECO and fast ozone. Fast ozone pump sounded a bit stiff
when starting up.
- 344: OZONE, Site 1, Thu 25-Jul-1996 15:59:12 GMT, details of fast ozone operation
LIFT Fast Ozone Details:
Dry ice can be procured from the Community Blood Bank of Illinois,
1408 University, Champaign. (367-2202) Hours are 8-4 M-Th and 8-5
on Fri. They typically get deliveries of dry ice on Tue and Fri.
The price is $0.65/lb. Give them the NCAR tax exempt number 98-
02203 and they will not charge sales tax. We need about 5 lb of
dry ice per day of operation for the PMT, plus evaporative losses
require an amount of about 7-8 pounds a day.
The chart recorder is running on the TECO. I suggest we leave this
run. Note the time on the chart every day. There is a mark button
on the upper right corner of the flatbed, punch this and note the
time on the chart.
If it looks like the TECO needs cleaning, use care when cleaning
the windows. They scratch easily, and that causes problems with
water vapor interference. If the instrument is cleaned pay special
attention to the teflon flat washers and the rubber gaskets around
the windows. Clean these really well with alcohol and then dry
them by pressing in a paper towel.
If the fast ozone has a high background signal, the most likely
problem is a wet PMT. Keep track of the background "dark voltage"
each morning and that is a good indicator if you have a problem.
Make sure the PMT chamber is up to ambient temperature, pull the
back off the chemshelter, this is much easier than getting the
instrument rack out and getting access to the back of it.
Disconnect the cables from the PMT socket and pull the three screws
that hold it in. Gently pry the socket out, handle the PMT only
with a paper towel between it and your hand. Put the socket in the
oven for an hour or so at 40 deg, use the heat gun to gently dry
the housing. Assemble the PMT and the socket in the dry of the
trailer, wrap the assembly in paper towels and return to instrument
for reassembly.
There is an additional cylinder of NO in the chemshelter. Use this
if necessary.
System Checks:
Every two days, run a power spectra analysis and a cospectra on the
fast ozone. Look at these and keep track of them to validate
instrument performance.
Weekly (preferably on Wednesday) check the frequency on the TECO
lamp. Push in button A, wait for a number of about 100K or
greater, then do B. Then push RUN to the instrument back to
regular operation.
- 354: OZONE, Site 1, Fri 26-Jul-1996 13:11:33 GMT, PAM1 mast dropped
Greg and I dropped the mast to perform the ozone delay time tests this morning.
(early to have the mast back up before the LIFT "intensive" period starting
at 8 AM (which includes the ozone DIAL system) ).
I also cleaned the krypton, which didn't look too bad.
Note that we did some weird things with the analog signals for this test:
The cable from channels 4-7 in the chem shelter was connected to channels
108-111 (thus no signals were coming in to channels 104-107 and the krypton
signal was disconnected). This allowed us to use channel 108 for the
valve switch indicator. Everything was back to normal about 1250Z.
P.S. We find 0.4 s for the delay time. This could be a slight overestimate if
the valve delay is significant (probably less than 0.05s).
This value is pretty close to 0.3s found from the krypton-ozone lag
correlation.
- 362: OZONE, Site 1, Fri 26-Jul-1996 22:01:27 GMT, shutting ozone off
On our way out today, we will shutdown the ozone system, since Greg only
wants it to run every 3-4 nights and it ran last night.
- 363: OZONE, Site 1, Sat 27-Jul-1996 14:31:49 GMT, fast ozone restarted
I just started Greg's fast ozone instrument. All readings were normal.
- 367: OZONE, Site 1, Sat 27-Jul-1996 18:46:04 GMT, bad did name
Note that the did name "conc.O3.teco.0m" is misleading. Greg has a second
inlet at the sonic (currently 5.7m) to feed the TECO. This did probably
should be conc.O3.teco.3m. However, I don't plan to change it at this late
date.
- 372: OZONE, Site 1, Sat 27-Jul-1996 23:01:27 GMT, ozone shutdown
Fast ozone shutdown about 10 min. ago since it might rain and the ozone
DIAL should have been shut down at 5:35.
- 373: OZONE, Site 1, Sun 28-Jul-1996 14:11:30 GMT, ozone restarted
All settings normal.
I notice from the daily plots that it takes a good hour for the fast sensor
to (literally) warm up and give values which agree with the TECO - we should
keep this in mind when coordinating with the LIFT measurements. (It is
possible that the sensor temperature is an important part of the calibration
and that the output values will agree when the temperature is included,
but I am skeptical.)
- 377: OZONE, Site 1, Sun 28-Jul-1996 23:14:20 GMT, shut ozone down about 2255Z
There maay be rain tonight, and LIFT won't run tomorrow early AM, so we've
shut Greg's instrument down.
- 378: OZONE, Site 1, Mon 29-Jul-1996 14:12:53 GMT, ozone back up
All readings normal - we use about 5 lb of NO per 9 hours = 13 lb/day, so
with 500 lbs in the cylinder, we should have plenty even with 24 hr/day
operation through the end of the experiment.
- 387: OZONE, Site 1, Tue 30-Jul-1996 14:30:28 GMT, fast ozone still going
I've just reloaded the dry ice (and got some more from the Blood Bank).
The sensor ran all last night (even though it rained early this morning).
All readings were normal.
- 400: OZONE, Site 1, Fri 02-Aug-1996 21:27:37 GMT, LIFT fast ozone checklist
LIFT Fast-Ozone Checklist
----------------------------------------------------------------------------
Date 7/23/96
Time start:10:20
Time finish:18:06
NO cylinder pressure: 540 (start)
NO regulator pressure: 30
NO flow control setting(should be 506):
Sample flow:
Reactor temperature:30
Reactor pressure:
TECO ozone sensor, on?: yes ,pump on?: yes ,P/T button in?: yes
PMT dark current (voltage):
Shelter temperature:
Comments:
Operator: Kok
-----------------------------------------------------------------------------
~
-------------------------------------------------------------------------
Date 7/24/96
Time start:09:00
Time finish:17:30
NO cylinder pressure: 530 (end)
NO regulator pressure: 28
NO flow control setting(should be 506): 506 (read 244)
Sample flow: 440
Reactor temperature: 30.3
Reactor pressure:
TECO ozone sensor, on?: yes ,pump on?: yes ,P/T button in?: yes
PMT dark current (voltage):
Shelter temperature:
Comments: System ran overnight without NO flowing
Operator: Kok
-----------------------------------------------------------------------------
~
-------------------------------------------------------------------------
Date 7/25/96
Time start:09:10
Time finish:
NO cylinder pressure: 520
NO regulator pressure:30
NO flow control setting(should be 506): read(247)
Sample flow: 443
Reactor temperature: 22.1
Reactor pressure: 93
TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?: Y
PMT dark current (voltage):0.6 volts
Shelter temperature:23.5
Comments:
Operator: GLK/MCM/SPOF
-----------------------------------------------------------------------------
~
-------------------------------------------------------------------------
Date 7/26/96
Time start:
Time finish:
NO cylinder pressure: 500
NO regulator pressure: 28
NO flow control setting(should be 506): 506 (read 244
Sample flow: 440
Reactor temperature: 29.3
Reactor pressure: 093
TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?: Y
PMT dark current (voltage):
Shelter temperature: 22.1
Comments:
Operator: EK/SPO
-----------------------------------------------------------------------------
~
-------------------------------------------------------------------------
Date 7/27/96
Time start: 09:15
Time finish:
NO cylinder pressure: 505
NO regulator pressure: 30
NO flow control setting(should be 506): 506 (read 246)
Sample flow: 447
Reactor temperature: 28.4
Reactor pressure: 107
TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?: Y
PMT dark current (voltage):0.1.45
Shelter temperature: 24.3
Comments:
Operator: Steve Oncley
-----------------------------------------------------------------------------
~
-------------------------------------------------------------------------
Date 7/28/96
Time start: 09:00
Time finish:
NO cylinder pressure: 500
NO regulator pressure: 30.5
NO flow control setting(should be 506): 506 (Read 246)
Sample flow: 447
Reactor temperature: 27.6
Reactor pressure: 106
TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?:Y
PMT dark current (voltage): 0.16
Shelter temperature: 25.6
Comments:
Operator:Steve Onley
-----------------------------------------------------------------------------
~
-------------------------------------------------------------------------
Date 7/29/96
Time start:09:00
Time finish:
NO cylinder pressure: 495
NO regulator pressure: 30
NO flow control setting(should be 506): 506 (READ 247)
Sample flow:445
Reactor temperature: 26.4
Reactor pressure: 103
TECO ozone sensor, on?: ,pump on?: ,P/T button in?:
PMT dark current (voltage): 0.15
Shelter temperature: 24.7
Comments:
Operator: Steve Oncley
-----------------------------------------------------------------------------
~
-------------------------------------------------------------------------
Date 7/30/96
Time start: 09:20
Time finish:
NO cylinder pressure: 405 (ran all night)
NO regulator pressure: 28
NO flow control setting(should be 506): (read 244)
Sample flow:
Reactor temperature: 31
Reactor pressure: 91?
TECO ozone sensor, on?: ,pump on?: ,P/T button in?:
PMT dark current (voltage):
Shelter temperature: 24
Comments: Values from memory since didnt have open
Operator: Steve Oncley
-----------------------------------------------------------------------------
~
-------------------------------------------------------------------------
Date 7/31/96
Time start:~18:00
Time finish:
NO cylinder pressure: 475
NO regulator pressure: 28
NO flow control setting(should be 506): Y (read 246)
Sample flow: 442
Reactor temperature: 30.7
Reactor pressure: 092
TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?: Y
PMT dark current (voltage):
Shelter temperature: 24
Comments:
Operator: Steve Oncley
-----------------------------------------------------------------------------
~
-------------------------------------------------------------------------
Date 8/1/96
Time start: 09:45
Time finish:
NO cylinder pressure: 460
NO regulator pressure: 28
NO flow control setting(should be 506): Y (read 2460
Sample flow: 442
Reactor temperature: 31.1
Reactor pressure: 093
TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?: Y
PMT dark current (voltage):
Shelter temperature: 24.4
Comments:
Operator: Steve Oncley
-----------------------------------------------------------------------------
~
-------------------------------------------------------------------------
Date 8/2/96
Time start:11:56
Time finish:
NO cylinder pressure: 460 psi
NO regulator pressure:27.5 psi
NO flow control setting(should be 506):506 (read 246)
Sample flow: 441
Reactor temperature: 31.6
Reactor pressure:093
TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?: Y
PMT dark current (voltage):
Shelter temperature:26.9 after being open for 5 mins
Comments: TECO sample flow A 1.05, flow B 0.95
Operator: Tony Delany
-----------------------------------------------------------------------------
~
-------------------------------------------------------------------------
Date 3 Aug 96
Time start:10:05 Note that the Kok Machine is running continually now
Time finish:
NO cylinder pressure:440 psi
NO regulator pressure: 29 psi
NO flow control setting(should be 506): Read 246
Sample flow:Reads 443
Reactor temperature: 31.5
Reactor pressure: 93
TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?: Y 55 ppbv
PMT dark current (voltage):
Shelter temperature: 24.1
Comments:
Operator: Tony Delany
-----------------------------------------------------------------------------
~
-------------------------------------------------------------------------
Date 4 Aug 96
Time start:11:35
Time finish:
NO cylinder pressure:420 psi
NO regulator pressure: 28 psi
NO flow control setting(should be 506): reads 246
Sample flow: 443
Reactor temperature: 31.5
Reactor pressure:93
TECO ozone sensor, on?: Y ,pump on?: y ,P/T button in?: Y 79,81
PMT dark current (voltage):
Shelter temperature: 24.4
Comments:
Operator: Tony Delany
-----------------------------------------------------------------------------
~
-------------------------------------------------------------------------
Date 5 Aug 96
Time start:11:00 local time
Time finish:
NO cylinder pressure: 420 psi
NO regulator pressure: 28 psi1
NO flow control setting(should be 506): read 246
Sample flow: 443
Reactor temperature: 30.1
Reactor pressure:93
TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?: Y
PMT dark current (voltage):
Shelter temperature: 20.8
Comments: The system is running continuously. There appears to be noise
problems with approx 15 minute periodicity in the daytime and 1 hr periodicity
at nighttime..
On this visit the TECO was on an excusion 104,..160, 180, 171,191,182,201,194
199,....
Operator: Tony Delany
-----------------------------------------------------------------------------
~
-------------------------------------------------------------------------
Date 6 Aug 96, Tues,
Time start:10:20
Time finish:
NO cylinder pressure: 395
NO regulator pressure: 29
NO flow control setting(should be 506): read 246
Sample flow:434
Reactor temperature:43.1 degreec
Reactor pressure: 93
TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?:Y 50,48,48,50,..
PMT dark current (voltage):
Shelter temperature:36.2 when first opened
Comments:On the evening of 5 Aug the
TECO was switched off and then back on. This caused the TECO to become
rational again. The air conditioner was switched off . This removed the
spiking and ramping from the TECO and the Kok machine data.
This morning the door was removed from the front of the shelter and only
the fan of the air conditioner was activated.
Operator:Tony Delany
-----------------------------------------------------------------------------
~
--------------------------------------------------------------------------------
Date:7 Aug, Wednesday
Time start:10:50
Time finish:
NO cylinder pressure: 400 psi
NO regulator pressure:28 psi
NO flow control setting(should be 506): 246
Sample flow:432
Reactor temperature:41.9
Reactor pressure:93
TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?:Y 54,58,58,57,...
PMT dark current (voltage):
Shelter temperature:35.5
Comments:At the evening visit at 1800 the door was reinstalled on the shelter
in case of rain during the night. The door was removed for the daytime
operation of the system at 10:55
Operator:Tony Delany
-------------------------------------------------------------------------
Date:August 8
Time start:15:15 (GMT)
Time finish:
NO cylinder pressure:385
NO regulator pressure:28
NO flow control setting(should be 506):246
Sample flow:437
Reactor temperature:40.0
Reactor pressure:92
TECO ozone sensor, on?:y ,pump on?:y ,P/T button in?:y, 43,44,42
PMT dark current (voltage):
Shelter temperature:33.4
Comments:removed door for daytime
Operator:kurt knudson
-------------------------------------------------------------------------
Date:August 9, 1996
Time start:14:06 GMT
Time finish:14:16
NO cylinder pressure:380
NO regulator pressure:29
NO flow control setting(should be 506):246
Sample flow:441
Reactor temperature:32.8
Reactor pressure:93
TECO ozone sensor, on?:y ,pump on?: y ,P/T button in?:y, 30,28,29
PMT dark current (voltage):
Shelter temperature:27.5
Comments:removed door for daytime
Operator:kk
-------------------------------------------------------------------------
Date:August 10, 1996
Time start:13:44 GMT
Time finish:13:55
NO cylinder pressure:350
NO regulator pressure:30
NO flow control setting(should be 506):246
Sample flow:441
Reactor temperature:30.8
Reactor pressure:94
TECO ozone sensor, on?:y ,pump on?: y ,P/T button in?:y, 28,29,28,29
PMT dark current (voltage):
Shelter temperature:25.0
Comments:removed shelter door for daytime operation
Operator:kk
-------------------------------------------------------------------------
Date:August 11, 1996
Time start:15:00 GMT
Time finish:15:19
NO cylinder pressure:340
NO regulator pressure:29
NO flow control setting(should be 506):246
Sample flow:439
Reactor temperature:33.6
Reactor pressure:93
TECO ozone sensor, on?: y ,pump on?: y ,P/T button in?:y, 20,23,24,24,25
PMT dark current (voltage):
Shelter temperature:26.8
Comments:removed door for daytime operation
Operator:kk
-------------------------------------------------------------------------
Date:August 12, 1996
Time start:14:51
Time finish:14:59
NO cylinder pressure:330
NO regulator pressure:29
NO flow control setting(should be 506):246
Sample flow:432
Reactor temperature:35.6
Reactor pressure:93
TECO ozone sensor, on?: y ,pump on?: y ,P/T button in?: y, 52,50,52,49,52
PMT dark current (voltage):
Shelter temperature:29.7
Comments:removed door for daytime, dry ice chamber was almost completely empty
Operator:kk
-------------------------------------------------------------------------
Date:August 13, 1996
Time start:13:48
Time finish:14:09
NO cylinder pressure:315
NO regulator pressure:29
NO flow control setting(should be 506):246
Sample flow:435
Reactor temperature:32.1
Reactor pressure:93
TECO ozone sensor, on?: y ,pump on?: y ,P/T button in?:y, 35,33,33,33
PMT dark current (voltage):
Shelter temperature:26.9
Comments:removed door for daytime
Operator:kk
-----------------------------------------------------------------------------
Date:August 14, 1996
Time start:13:30 Z
Time finish:13:41
NO cylinder pressure:300
NO regulator pressure:30
NO flow control setting(should be 506):246
Sample flow:437
Reactor temperature:31.4
Reactor pressure:93
TECO ozone sensor, on?:y ,pump on?: y ,P/T button in?:y, 30,32,333,33,32
PMT dark current (voltage):
Shelter temperature:26.1
Comments:removed door for daytime
Operator:kk
-------------------------------------------------------------------------------
Date:August 15, 1996
Time start:13:46 GMT
Time finish:13:56
NO cylinder pressure:290
NO regulator pressure:30
NO flow control setting(should be 506):246
Sample flow:434
Reactor temperature:33.6
Reactor pressure:93
TECO ozone sensor, on?:y ,pump on?: y ,P/T button in?:y, 25,26,26,26
PMT dark current (voltage):
Shelter temperature:27.8
Comments:removed door for daytime
Operator:kk
--------------------------------------------------------------------------------
Date:August 16, 1996
Time start:13:37 GMT
Time finish:13:47
NO cylinder pressure:270
NO regulator pressure:30
NO flow control setting(should be 506):246
Sample flow:438
Reactor temperature:30.3
Reactor pressure:93
TECO ozone sensor, on?:y ,pump on?:y ,P/T button in?:y, 22,23,21,24
PMT dark current (voltage):
Shelter temperature:24.8
Comments:removed door for daytime
Operator:kk
--------------------------------------------------------------------------------
Date:August 17 1996
Time start:13:59
Time finish:
NO cylinder pressure:0
NO regulator pressure:0
NO flow control setting(should be 506):
Sample flow:
Reactor temperature:
Reactor pressure:
TECO ozone sensor, on?:y ,pump on?: y ,P/T button in?:y, 23,24
PMT dark current (voltage):
Shelter temperature:
Comments:turned fast ozone off due to rain, Teco is looking OK
Operator:kk
--------------------------------------------------------------------------------
Date:18 August, 1996
Time start:still raining outside, unit not turned on
Time finish:
NO cylinder pressure:
NO regulator pressure:
NO flow control setting(should be 506):
Sample flow:
Reactor temperature:
Reactor pressure:
TECO ozone sensor, on?: ,pump on?: ,P/T button in?:
PMT dark current (voltage):
Shelter temperature:
Comments:still raining, unit not turned on
Operator:kk
-------------------------------------------------------------------------
Date:August 19, 1996
Time start:13:55 GMT
Time finish:14:07
NO cylinder pressure:260
NO regulator pressure:32
NO flow control setting(should be 506):248
Sample flow:438
Reactor temperature:28.1
Reactor pressure:104,94
TECO ozone sensor, on?:y ,pump on?: y ,P/T button in?:y, 39,37,37,35
PMT dark current (voltage):98.8 mv
Shelter temperature:25.6
Comments:restarted unit, opened door for daytime
Operator:kk
---------------------------------------------------------------
Date:August 20, 1996
Time start:13:41 GMT
Time finish:13:52
NO cylinder pressure:250
NO regulator pressure:30
NO flow control setting(should be 506):246
Sample flow:432
Reactor temperature:36.0
Reactor pressure:91
TECO ozone sensor, on?: y ,pump on?: y ,P/T button in?:y, 55,56,48,49,55,56
PMT dark current (voltage):
Shelter temperature:30.2
Comments:removed door for daytime
Operator:kk
-------------------------------------------------------------------
Date:August 21, 1996
Time start:14:08
Time finish:14:18
NO cylinder pressure:240
NO regulator pressure:31
NO flow control setting(should be 506):246
Sample flow:428
Reactor temperature:36.4
Reactor pressure:92
TECO ozone sensor, on?: y ,pump on?: y ,P/T button in?:y, 40,48,46,41,43
PMT dark current (voltage):
Shelter temperature:30.6
Comments:removed door for daytime, chart recorder almost out of paper
Operator:kk
-------------------------------------------------------------------
Date:August 22, 1996
Time start:14:30 GMT
Time finish:14:40
NO cylinder pressure:220
NO regulator pressure:30
NO flow control setting(should be 506):246
Sample flow:425
Reactor temperature:37.0
Reactor pressure:91
TECO ozone sensor, on?: y ,pump on?: y ,P/T button in?:y, 51,52,52,51
PMT dark current (voltage):
Shelter temperature:31.6
Comments:removed door for last day of operation, will start system purge this
evening
Operator:kk
-------------------------------------------------------------------
Date:August 23, 1996
Time start:19:00
Time finish:
NO cylinder pressure:off
NO regulator pressure:0, purged
NO flow control setting(should be 506):246
Sample flow:427
Reactor temperature:36.1
Reactor pressure:91
TECO ozone sensor, on?: y ,pump on?: y ,P/T button in?:y, 30,27,29
PMT dark current (voltage):
Shelter temperature:30.3
Comments:turned off NO at 22:25 lastr evening, started the purge process
Operator:kk
-------------------------------------------------------------------
- 401: OZONE, Site 1, Fri 02-Aug-1996 22:33:19 GMT, TEMPLATE for Fast-Ozone Checklist
TEMPLATE for fast ozone checklist
To make more copies see logbook 323
----------------------------------------------------------------------------
-----------------------------------------------------------------------------
Copy this information into LOGBOOK 322
-------------------------------------------------------------------------
Date
Time start or time of inspection when in continuous running:
Time finish:
NO cylinder pressure:
NO regulator pressure:
NO flow (setting 506)read:
Sample flow:
Reactor temperature:
Reactor pressure:
TECO ozone sensor, on?: ,pump on?: ,P/T button in?:
PMT dark current (voltage):
Shelter temperature:
Comments:
Operator:
-----------------------------------------------------------------------------
-----------------------------------------------------------------------------
Copy this information into LOGBOOK 322
-------------------------------------------------------------------------
Date
Time start or time of inspection when in continuous running:
Time finish:
NO cylinder pressure:
NO regulator pressure:
NO flow (setting 506)read:
Sample flow:
Reactor temperature:
Reactor pressure:
TECO ozone sensor, on?: ,pump on?: ,P/T button in?:
PMT dark current (voltage):
Shelter temperature:
Comments:
Operator:
-----------------------------------------------------------------------------
-----------------------------------------------------------------------------
Copy this information into LOGBOOK 322
-------------------------------------------------------------------------
Date
Time start or time of inspection when in continuous running:
Time finish:
NO cylinder pressure:
NO regulator pressure:
NO flow (setting 506)read:
Sample flow:
Reactor temperature:
Reactor pressure:
TECO ozone sensor, on?: ,pump on?: ,P/T button in?:
PMT dark current (voltage):
Shelter temperature:
Comments:
Operator:
-----------------------------------------------------------------------------
-----------------------------------------------------------------------------
Copy this information into LOGBOOK 322
-------------------------------------------------------------------------
Date
Time start or time of inspection when in continuous running:
Time finish:
NO cylinder pressure:
NO regulator pressure:
NO flow (setting 506)read:
Sample flow:
Reactor temperature:
Reactor pressure:
TECO ozone sensor, on?: ,pump on?: ,P/T button in?:
PMT dark current (voltage):
Shelter temperature:
Comments:
Operator:
-----------------------------------------------------------------------------
-----------------------------------------------------------------------------
Copy this information into LOGBOOK 322
-------------------------------------------------------------------------
Date
Time start or time of inspection when in continuous running:
Time finish:
NO cylinder pressure:
NO regulator pressure:
NO flow (setting 506)read:
Sample flow:
Reactor temperature:
Reactor pressure:
TECO ozone sensor, on?: ,pump on?: ,P/T button in?:
PMT dark current (voltage):
Shelter temperature:
Comments:
Operator:
-----------------------------------------------------------------------------
-----------------------------------------------------------------------------
Copy this information into LOGBOOK 322
-------------------------------------------------------------------------
Date
Time start or time of inspection when in continuous running:
Time finish:
NO cylinder pressure:
NO regulator pressure:
NO flow (setting 506)read:
Sample flow:
Reactor temperature:
Reactor pressure:
TECO ozone sensor, on?: ,pump on?: ,P/T button in?:
PMT dark current (voltage):
Shelter temperature:
Comments:
Operator:
-----------------------------------------------------------------------------
-----------------------------------------------------------------------------
Copy this information into LOGBOOK 322
-------------------------------------------------------------------------
Date
Time start or time of inspection when in continuous running:
Time finish:
NO cylinder pressure:
NO regulator pressure:
NO flow (setting 506)read:
Sample flow:
Reactor temperature:
Reactor pressure:
TECO ozone sensor, on?: ,pump on?: ,P/T button in?:
PMT dark current (voltage):
Shelter temperature:
Comments:
Operator:
-----------------------------------------------------------------------------
-----------------------------------------------------------------------------
Copy this information into LOGBOOK 322
-------------------------------------------------------------------------
Date
Time start or time of inspection when in continuous running:
Time finish:
NO cylinder pressure:
NO regulator pressure:
NO flow (setting 506)read:
Sample flow:
Reactor temperature:
Reactor pressure:
TECO ozone sensor, on?: ,pump on?: ,P/T button in?:
PMT dark current (voltage):
Shelter temperature:
Comments:
Operator:
-----------------------------------------------------------------------------
-----------------------------------------------------------------------------
Copy this information into LOGBOOK 322
-------------------------------------------------------------------------
Date
Time start or time of inspection when in continuous running:
Time finish:
NO cylinder pressure:
NO regulator pressure:
NO flow (setting 506)read:
Sample flow:
Reactor temperature:
Reactor pressure:
TECO ozone sensor, on?: ,pump on?: ,P/T button in?:
PMT dark current (voltage):
Shelter temperature:
Comments:
Operator:
-----------------------------------------------------------------------------
-----------------------------------------------------------------------------
Copy this information into LOGBOOK 322
-------------------------------------------------------------------------
Date
Time start or time of inspection when in continuous running:
Time finish:
NO cylinder pressure:
NO regulator pressure:
NO flow (setting 506)read:
Sample flow:
Reactor temperature:
Reactor pressure:
TECO ozone sensor, on?: ,pump on?: ,P/T button in?:
PMT dark current (voltage):
Shelter temperature:
Comments:
Operator:
-----------------------------------------------------------------------------
- 406: OZONE, Site 1, Sat 03-Aug-1996 18:04:55 GMT, Installation of Surface Effect Chemiluminescense Ozone Detector, SECLOD
On Wed, 31 Jul 96 the SECLOD was installed at PAM 1.
The sensor was strapped to the sonic boom just behind the
level of the Krypton hydrometer. The cables were strung
and because of the lengths of the cables the power supply
had to be strapped to the tower upright.
The sensor output was very very low but it was left
overnight to precondition. It was realized that the cables were
attached backwards but the sensor could not by fixed until the
evening of Thurs 1 Aug as an intensive observation period was occuring.
On the morning of Fri 2 Aug the SECLOD signal was healthy and
compared in structure to the Kok machine fast ozone sensor.
SECLOD response fell off at 1 Hz and the Kok machine exhibited
white noise commencing at several Hz.
- 417: OZONE, Site 1, Mon 05-Aug-1996 15:26:25 GMT, Air conditioner? interference
Something is generating interference with the TECO at station 1.
It is possible that the airconditioner in the chem-shelter is the culprit.
It is possible that rather than the airconditioner it is the reaction
chamber heater as the same periodicity appears in the Kok housekeeping output.
The Kok ozone signal does not show a strong indication of intreference..
Whatever is causing the interference cycles
during the day at ~ 4 hr-1
during the night at ~ 1 hr-1
- 420: OZONE, Site 1, Mon 05-Aug-1996 22:49:18 GMT, Cycled power on TECO/AC off
At 1730 local time refilled dry ice, cycled power on TECO
and switched off air conditioner:wq
- 424: OZONE, Site 1, Tue 06-Aug-1996 15:47:54 GMT, Ozone shelter airconditioning
The ozone system was operated throughout the night without the air conditioner.
All the data traces improved and there was no spiking nor ramping on
TECO
Kok ozone
Kok sample
Kok NO
Kok T
Kok P.
At 10:20 6 Aug the shelter door was removed and only the fan of the air
conditioner was switched on.
- 431: OZONE, Site 1, Thu 08-Aug-1996 19:01:12 GMT, Modified SECLOD with Al foil
At 13:45 the PAM 1 mast was lowered and Al foil was taped over the
two transluscent covers of the SECLOD housing. In addition a small
foil cap was taped over the inlet and the foil was punched through and
smoothed using a pencil. Hopefully this will reduce the light leaks.
- 432: OZONE, Site 1, Thu 08-Aug-1996 21:22:54 GMT, SECLOD bugs
Observation of the X-strip display of the SECLOD showed that occasionally
large negative excursion occured. These excursions were possibly due
to the inhalation of insects. There very well could have correlation
of insects with vertical air motion.
A good example of such an excursion occured at yday=221,17:55 and 17:56
- 440: OZONE, Site 1, Sun 11-Aug-1996 21:22:30 GMT, SECLOD high voltage increased to -1000 volts
the high voltage of SECLOD was increased to -1000 volts per Tony Delany
today at 19:00 (was at -901 volts). the al. foil was replaced also.
- 444: OZONE, Site 1, Mon 12-Aug-1996 16:46:15 GMT, seclod dead
the seclod ozone sensor died at the time i was increasing the high voltage
to 1000 volts yesterday.
an attempt to revive the sensor will be made tommorrow morning so as to not
disturb the flux measurements during the day
- 445: OZONE, Site 1, Tue 13-Aug-1996 14:20:09 GMT, SECLOD LIVES
the seclod ozone sensor was repaired this morning - a broken pin connection was
repaired, and the high voltage was checked again(-1000 v). the unit was
rewrapped in al foil for light leak protection.
- 456: OZONE, Site 1, Fri 16-Aug-1996 19:03:45 GMT, Kok Ozone detector noise.
The noise level of the Kok ozone detector has increased since last
week when I left for Oak Ridge. I judge that the increse is not
too significant and that the risk associated with removing and
drying the PMT is probably too great. The signal is still good.
The SECL detector is also showing more irregularity but I will leave it
without further adjustment.
- 458: OZONE, Site 1, Sat 17-Aug-1996 14:52:48 GMT, fast ozone play suspended due to rain
fast ozone unit was turned off due to rain at 13:59
- 459: OZONE, Site 1, Sat 17-Aug-1996 14:54:40 GMT, Teco ozone sensor bad yesterday evening, OK now
the teco ozone sensor was cycling wildy last evening (fri aug 16, 22:00 gmt)
power was reset 3 times before sensor settled down. aprox. 45 min.of spastic
behavior. Unit looked OK this morning at 14:00.
- 486: OZONE, Site 1, Wed 11-Sep-1996 20:25:23 GMT, Calibration and offsets for Kokod fast ozone detector
During the first two weeks of September the data from:
Tecod, the ThermoElectron ozone detector
Kokod, the gas-phase chemiluminescese ozone detector
were examined.
Tecod was operating continuously from <22 Jul 96 until 22 Aug 96.
Until 5 Aug 96 the airconditioner temperature transients
induced periodic noise spikes. After that date the air conditioner was
disabled.
Kokod was activated 22 Jul 96 and operated until 22 Aug 96
The first few days were not reliable nor continuous and thegood data
set begins 15:00 GMT 25 Jul 96.
The combined Tecod and Kokod data was examined using
"fun.ozone.cal.plot()"
to select periods ofgood and bad data.
The data was then processed using
"fun.ozone.scatter.plot()"
to generate offset and calibration factors for good data periods.
NB all dates and time are based on GMT
Date Time start Time finish Offset Calibration factor
GMT GMT ppbv ppbv/volt
22 Jul 96
23 Jul 96
24 Jul 96
25 Jul 96 15:00 24:00 -0.992 27.5
26 Jul 96 14:00 20:00 -0.113 28.5
27 Jul 96 15:00 23:00 5.53 24.6
28 Jul 96 14:00 23:00 13.5 22.8
29 Jul 96 14:00 24:00 0.152 29.5
30 Jul 96 00:00 24:00 3.31 27.4
31 Jul 96 00:00 24:00 2.61 27.4
01 Aug 96 00:00 24:00 3.06 27.5
02 Aug 96 00:00 13:00 3.52 27.4
17:00 24:00 -3.26 31.4
03 Aug 96 00:00 16:30 3.98 29.7
19:00 24:00 3.98 29.7
04 Aug 96 00:00 24:00 3.36 33.4
05 Aug 96 00:00 13:00 12.4 28.3
06 Aug 96 00:00 24:00 5.66 25.7
07 Aug 96 00:00 24:00 7.99 26.8
08 Aug 96 00:00 24:00 7.23 24.8
09 Aug 96 00:00 24:00 3.36 26.0
10 Aug 96 00:00 24:00 3.08 27.7
11 Aug 96 00:00 24:00 2.93 30.0
12 Aug 96 00:00 24:00 8.86 27.6
13 Aug 96 00:00 24:00 8.3 26.6
14 Aug 96 00:00 24:00 6.53 27.7
15 Aug 96 00:00 14:00 8.37 27.0
14:00 24:00 3.24 26.8
16 Aug 96 00:00 22:00 3.35 27.7
17 Aug 96 00:00 14:00 4.71 29.8
18 Aug 96 ~ ~ ~ ~
19 Aug 96 14:00 00:00 12.2 26.1
20 Aug 96 00:00 24:00 9.97 29.8
21 Aug 96 00:00 24:00 8.32 28.8
22 Aug 96 00:00 16:00 9.11 28.2
A continuous good dta period of 9 days without a break was lumped
06 Aug 96 00:00
15 Aug 96 00:00 5.14 27.7