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| Survey | When (UTC) | Latitude | Longitude | Instrument | Identifier | Action | Log | Subject / Comments |
|---|---|---|---|---|---|---|---|---|
| IN2016_T01 | 2016-07-09 04:56 [view ] | -28.7379 | 155.8449 | MAAP [view] | Connection | Atmos_in2016_t01 | MAAP connected to Manifold MAAP connected to Manifold. Will cause a spike for other instruments | |
| IN2016_V03 | 2016-06-21 01:18 [view ] | -6.0002 | -168.7512 | MAAP [view] | maintenance | in2016_v03 | disconnected MAAP from manifold, now sampling lab air Manifold unused line closed with swagelok end. | |
| IN2017_T01 | 2017-09-30 20:30 [view ] | -9.6359 | 144.6104 | MAAP [view] | Stop | in2017_t01 | MAAP found stopped on error. | |
| IN2017_T01 | 2017-09-30 23:43 [view ] | -9.2490 | 144.1514 | MAAP [view] | restarted | in2017_t01 | Restarted system numerous times to try clear error. | |
| IN2017_T01 | 2017-10-01 01:27 [view ] | -9.2449 | 143.8185 | MAAP [view] | Stop | in2017_t01 | MAAP cannot restart. Water degradation on sampling paper. | |
| IN2018_T01 | 2018-04-12 23:30 [view ] | -31.3683 | 154.1238 | MAAP [view] | Stop | in2018_t01 | MAAP shutdown due to high humidity | |
| IN2019_E01 | 2019-07-28 02:24 [view ] | -9.9570 | 135.4448 | MAAP [view] | Maintenance | in2019_e01_Atmospherics | Annual maintenance Opened up optics to discover the reflection optics are very soiled (see attached image) Need to fully disassemble optics to clean out properly in an IPA bath. The transmission optics have been discovered to be quite dirty as well.(see attached image) Removal of the stage has discovered that silicon has been applied in a poor manner to keep a seal on, but this has overflowed to stick the stage on in the back left corner. Cleaned up and removed this excess silicon. Removed the "O-ring" seal, and brass shim surrounding the transmission optics. Can& 39;t remove the transmission optics itself, so we& 39;re cleaning it in place with canned IPA and Q-tips making sure to clean the diode surfaces too. Cleaning the reflection optics in a bath of IPC and agitating Disassembling all the transmission optics and fully cleaning in ultrasonic bath, lots of rust everywhere. After cleaning, discovered some of the matte black paint on the stage has been removed - this puts into question the quality of the data going forward. Need to check data going forward. After full cleaning in bath, and rust removal with glass fibre pen and lots of q-tips, everything looked good. But after a while in the oven, Ian discovered liquid still in the reflection optics head. We took it apart a bit more to remove the excess water and while apart, put it in the oven for a few more hours. | |
| IN2019_E01 | 2019-07-29 05:27 [view ] | -10.9867 | 140.5987 | MAAP [view] | Observation | in2019_e01_Atmospherics | filter tape filter tape damaged on left hand side (new side)? swiching instrument off until someone can fix it. | |
| IN2019_E01 | 2019-07-29 05:51 [view ] | -10.9728 | 140.6818 | MAAP [view] | Maintenance | in2019_e01_Atmospherics | Fixed filter tape damage Stopped MAAP, opened up the head, cut out the damaged filter tape and taped the two parts together and wrapped it around a few times. Looks good now. Currently zeroing. | |
| IN2019_E01 | 2019-07-29 10:18 [view ] | -10.7607 | 141.5847 | MAAP [view] | Outage | in2019_e01_Atmospherics | Restarted to clear error after switching from manual mode. | |
| IN2019_E01 | 2019-07-30 03:43 [view ] | -9.4027 | 144.4167 | MAAP [view] | Change | in2019_e01_Atmospherics | BC concentration unit Changed displayed [BC] units from ug/m3 to ng/m3 at 03:45am UTC. The displayed concentration on the front screen was constantly 0.00 ug/m3. Post-change [BC] = 17ng/m3. | |
| IN2019_E01 | 2019-07-30 06:21 [view ] | -9.7608 | 144.7628 | MAAP [view] | Change | in2019_e01_Atmospherics | BC concentration unit after speaking to Ian McRobert, changed [BC] back to ug/m3 until all data processes downstream are verified and notified. | |
| IN2019_E01 | 2019-07-31 00:36 [view ] | -11.9413 | 145.4645 | MAAP [view] | Maintenance | in2019_e01_Atmospherics | Disconnected MAAP sample line for maintenance MAAP disconnected 12:20 hrs UTC | |
| IN2019_E01 | 2019-07-31 00:38 [view ] | -11.9412 | 145.4645 | MAAP [view] | Maintenance | in2019_e01_Atmospherics | flow audit & 39;as is& 39; flow audit, gilibrator drawing lab air, T1 and Tref co-located Gilibrator = 16.52 (n=5), MAAP = 16.67; error = 0.6% T1 = 24.8, Tref -= 23.8 MAAP baroP = 1014, Ref BaroP = 1014 ---------------------------------------------------------------- Adjustments: T1 adjusted - 1 BaroP unchanged -------------------------------------------------------------- Final checks: Gilibrator = 16.62 (n=5), MAAP = 16.67 LPM; error 0.3% T1 = 23.3, Tref = 23.4 | |
| IN2019_E01 | 2019-07-31 02:36 [view ] | -11.9412 | 145.4645 | MAAP [view] | Observation | in2019_e01_Atmospherics | MAAP Ozone interference test stopped MAAP disconnected from Ozone calibrator and reconnected to aerosol sample line 02:35hrs. No evidence of ozone interference found. | |
| IN2019_V03 | 2019-05-25 10:05 [view ] | -27.4585 | 109.9740 | MAAP T&RH Sensor [view] | Maintenance | in2019_v03_Atmospherics | Temporary outage for maintenance | |
| IN2019_V03 | 2019-06-12 08:18 [view ] | -28.4557 | 113.4802 | MAAP [view] | Stop | in2019_v03_Atmospherics | Shut down for dry dock | |
| IN2019_V06 | 2019-10-23 03:04 [view ] | -14.3670 | 121.2468 | MAAP [view] | Change | in2019_v06_Atmospherics | Changed the flow rate from 500 m3/hr to 700 m3/hr, and bypass flow from 7.3 to 4.0 LPM | |
| IN2019_V06 | 2019-10-23 03:19 [view ] | -14.3390 | 121.2358 | MAAP [view] | Fault | in2019_v06_Atmospherics | Error messages 0000 0000 0000 8000 = filter change condition already met again after a filter change has been carried out 0000 0000 0100 8000 = deviation > 5% 0000 0000 0120 8000 = Orifice pressure > 1 hPa 0000 0000 0130 8000 = Orifice pressure > 1 hPa + Suction chamber negative pressure < 10 hPa I think the deviation, orifice and suction chamber pressures are all associated with the variable flow rate. Not sure about the filter change idea. | |
| IN2019_V06 | 2019-10-23 03:41 [view ] | -14.2903 | 121.2360 | MAAP [view] | Fault | in2019_v06_Atmospherics | Took MAAP off main inlet (closed manifold tap) to test flow rate as source of error Seems turning the flowrates back up to 1000 m3/hr removed most of the errors. Not sure yet about the filter change error. I& 39;ve reconnected back to the inlet, running at 16.67 LPM and restarted the machine. This seems to have cleared all the errors for now. | |
| IN2019_V06 | 2019-10-24 05:27 [view ] | -14.2538 | 121.2908 | MAAP [view] | Outage | in2019_v06_Atmospherics | Stopped operation temporarily to explore MAAP menu for pump control | |
| IN2019_V06 | 2019-10-26 13:32 [view ] | -13.9130 | 122.0900 | MAAP [view] | Change | in2019_v06_Atmospherics | Flow rate change Flow rate lowered to 700LM to increase effect of nafions | |
| IN2019_V06 | 2019-10-27 00:14 [view ] | -13.4395 | 121.5502 | MAAP [view] | Change | in2019_v06_Atmospherics | Changed MAAP flow back to 1000 LPH Came in to find Will had changed the flow rate down to 700 LPH about 11 hours ago and the MAAP is now throwing errors and not maintaining flow - same as previous. I& 39;ve changed it back and restarted the instrument to clear the persistent errors. | |
| IN2019_V06 | 2019-11-06 06:01 [view ] | -13.7987 | 121.9597 | MAAP [view] | Outage | in2019_v06_Atmospherics | Disconnected from main line and turned off manifold tap to work on MAAP pump to reduce flow rate Back in service at 06:23 | |
| IN2019_V06 | 2019-11-06 16:58 [view ] | -13.7998 | 121.9578 | MAAP T&RH Sensor [view] | Maintenance | in2019_v06_Atmospherics | Humidity approaching 50% - Flow Increased to 1.3l/m | |
| IN2019_V06 | 2019-11-06 20:43 [view ] | -13.7972 | 121.9568 | MAAP T&RH Sensor [view] | Stop | in2019_v06_Atmospherics | Humidity persistently above 50% Shut down the instrument including the pump. Maintaining flow of air from the dryer | |
| IN2019_V06 | 2019-11-06 22:27 [view ] | -13.7965 | 121.9568 | MAAP [view] | Start | in2019_v06_Atmospherics | Restarted after instructions for Ian McRobert 50% is safe. Outside spec for data quality, but safe. | |
| IN2019_V06 | 2019-11-12 18:15 [view ] | -11.0093 | 133.3165 | MAAP [view] | Maintenance | in2019_v06_Atmospherics | flow rate change testing @flow = 1000l/hr, reg = 33.7%. Stable @flow = 900l/hr, reg = 29.2%. Stable @flow = 800l/hr, reg = 21.8%. Stable @flow = 700l/hr, reg = ---------- Unstable @flow = 750l/hr, reg <20% Unstable @flow = 790l/hr, reg = 19.6%. Stable @flow = 780l/hr, reg = 19.2%. Stable Test completed @ 0635UTC | |
| IN2019_V06 | 2019-11-12 19:43 [view ] | -11.1995 | 133.4303 | MAAP [view] | Stop | in2019_v06_Atmospherics | stopped for outlet modification Adding speed controller between MAAP outlet and pump. Suspect some restriction here may allow lower flows to be stable | |
| IN2019_V06 | 2019-11-12 19:45 [view ] | -11.1997 | 133.4305 | MAAP [view] | Start | in2019_v06_Atmospherics | restart following outlet modification speed controller added, left fully open flow regulator @33.7%, flow 1000l/hr, as before | |
| IN2019_V06 | 2019-11-12 19:47 [view ] | -11.1998 | 133.4305 | MAAP [view] | Maintenance | in2019_v06_Atmospherics | Flow rate change tests Sample humidity 50% at start of test Flow rate: @1000l/hr, reg 33.7%, Stable @800l/hr, reg 20.9%, stable speed controller adjusted (orifice reduced) @800l/hr, reg 33.9%, stable @750l/hr, reg 30.6%, stable @700l/hr, reg 25.9%, stable @650l/hr, reg 18.0%, stable speed controller adjusted (orifice reduced) @650l/hr, reg 34.0%, stable sample humidity 39% @600l/hr, reg 28.7%, stable speed controller adjusted (orifice reduced) @550l/hr, reg 34.0%, stable @500l/hr, reg25.5%, stable sample humidity 33.7% Flow rate left at 500l/hr | |
| IN2019_V06 | 2019-11-12 20:13 [view ] | -11.2030 | 133.4312 | MAAP [view] | Change | in2019_v06_Atmospherics | MAAP flow rate reduced to 500l/hr Based on testing, the MAAP flow rate has been reduced to 500L/hr, from1000L/hr. To ensure VSCC is at correct flow (1000L/hr), a bypass is running at 7.33l/min, and the sample line monitoring (t,rh,p) at 1l/min 7.33+1+8.33 = 16.66l/min = 1000L/hr Sample humidity 33.7%, Dew Point 8.75C. External air dew point = 23.5C | |
| IN2019_V06 | 2019-11-14 22:11 [view ] | -11.2073 | 133.4453 | MAAP [view] | Change | in2019_v06_Atmospherics | Bypass flow conditions changed T&RH flow stopped for maintenance on the MFC. Normally 1LPM Bypass flow increased to 8.33 (from 7.33) to compensate, to ensure cutoff remains accurate. | |
| IN2019_V06 | 2019-11-14 22:14 [view ] | -11.2073 | 133.4455 | MAAP T&RH Sensor [view] | Outage | in2019_v06_Atmospherics | Flow stopped Flow stopped for MFC 179326 maintenance (swap sensor location from downstream to upstream) | |
| IN2019_V06 | 2019-11-14 23:51 [view ] | -11.2075 | 133.4463 | MAAP [view] | Outage | in2019_v06_Atmospherics | bypass vacuum disconnected for last 1:40:00 Bypass vacuum was off for previous 1:40:00 (ihr 40mins) due to error with vacuum supply | |
| IN2019_V06 | 2019-11-14 23:54 [view ] | -11.2077 | 133.4462 | MAAP [view] | Start | in2019_v06_Atmospherics | MAAP flow conditions restored MAAP flow with bypass and TRH sensors operating normally | |
| IN2019_V06 | 2019-11-14 23:55 [view ] | -11.2077 | 133.4462 | MAAP T&RH Sensor [view] | Start | in2019_v06_Atmospherics | Flow back on following MFC maintenance MFC 179326 now has sensor upstream of valve. Pressure sensor monitors sample flow hence volumetric flow measurement is more representative of flow through nafion and sample line | |
| IN2019_V06 | 2019-11-15 20:21 [view ] | -11.2095 | 133.4387 | MAAP [view] | Change | in2019_v06_Atmospherics | Bypass MFC swapped for upstream ssensor The MFC for the bypass ( 179327) had a sensor downstream of the valve. Parameters before change: - Control: 7.33 LPM Vol Flow - Vol Flow = 7.33 LPM - Mass FLow = 6.07 SLPM - pressure = 848mBarA I have swapped it for one with the sensor upstream ( 179324), making the measured volumetric flow more representative of VSCC flow (measured at same pressure). Parameters after change: - Control: 7.33 LPM Vol Flow - Vol Flow = 7.33 LPM - Mass FLow = 7.07 SLPM - Pressure = 987 mBarA Better for the VSCC | |
| IN2019_V06 | 2019-11-15 21:29 [view ] | -11.2072 | 133.4427 | MAAP [view] | Maintenance | in2019_v06_Atmospherics | Bypass MFC swapped for original MFC, with upstream sensor The MAAP bypass now has its original MFC ( 179327), with upstream sensor. Parameters after change: - Control: 7.33 LPM Vol Flow - Vol Flow = 7.33 LPM - Mass FLow = 7.12 SLPM - Pressure = 993 mBarA | |
| IN2019_V06 | 2019-11-18 17:50 [view ] | -11.8495 | 131.5173 | MAAP [view] | Change | in2019_v06_Atmospherics | Bypass and TRH branch flows adjusted I have adjusted the flows of the Bypass and TRH sensor branch flows to improve drying efficacy. Conditions before change (all volumetric flows): MAAP flow = 8.33LPM Bypass Flow = 7.33LPM TRH Sensor Flow = 1.0LPM Conditions after change: MAAP Flow = 8.33 LPM Bypass Flow = 7.83 LPM TRH Sensor Flow = 0.50 LPM | |
| IN2019_V06 | 2019-11-18 17:54 [view ] | -11.8523 | 131.5072 | MAAP T&RH Sensor [view] | Change | in2019_v06_Atmospherics | Flow rate reduced to 0.5LPM (Vol) Flow rate reduced to try to improve dryer efficacy. See MAAP entry for more details | |
| IN2019_V06 | 2019-12-18 01:11 [view ] | MAAP [view] | Maintenance | in2019_v06_Atmospherics | VSCC cleaned a little bit of black carbon, but not too bad | |||
| IN2019_V06 | 2019-12-18 01:24 [view ] | MAAP [view] | Maintenance | in2019_v06_Atmospherics | HEPA zero check Tested with zero filter 1036015 Zero check passed - instrument reports zero as expected | |||
| IN2019_V06 | 2019-12-18 01:42 [view ] | MAAP [view] | Maintenance | in2019_v06_Atmospherics | Flow check Tested flow with Gilibrator with high flow cell 1810008-H. Air drawn from Lab, plumbed into MAAP input System nominal (MAAP reported) flow: 448Nl/h, 500l/h Gilibrator flow (average of 5): 8.008 L/min | |||
| IN2021_V02 | 2021-04-14 22:50 [view ] | -43.3208 | 147.4877 | MAAP [view] | Change | Atmospherics | Enable Black Carbon Conc on pump controller Enabled Black Carbon Concentration on Aerosol Air Sampling Pump Controller 0194 board interface |