20200417 Monthly & weekly Check (refer to notes)

Notes

Sample filters on NO, NOx, NOy, CO and O3 were replaced on 4/3/2020
Rain gauge cleaned of debri
Anemometer propellor rotating smoothly

NOy converter temperature: 320 deg C 

NO, NOx, NOy, O3, O3 and CO instrument diagnostics

NO sample flow: 0.956 l/min 
NO cell pressure: 204/263 mm Hg
NO PMT temperature: -2.4 deg C
NO PMT voltage: -905 V
NO alarms: Converter temperature (NA)

NO chamber temperature: 50.7 deg C

NOx sample flow: 0.536 l/min 
NOx cell pressure: 221.5 mm Hg
NOx PMT temperature: -2.4 deg C
NOx PMT voltage: -807 V
NOx alarms: Converter temperature (NA)

NOx chamber temperature: 50.9 deg C

NOy sample flow: 1.391 l/min
NOy cell pressure: 269 mm Hg
NOy PMT temperature: -1.4 deg C
NOx PMT voltage: -821 V
NOy alarms: Converter temperature (NA); Sample flow high 

NOx chamber temperature: 50 deg C

O3 sample flow: cell A - 1.507 l/min; cell B - 0.683 l/min
O3 pressure: 734.7 mm Hg
O3 instensities: cell A 49,819; cell B 38,131
O3 alarms: Flow A high; Intensity B low 38,120Hz (Range 45,000-150,000 Hz)

CO sample flow: 0.511 l/min
CO pressure: 745.9 mm Hg
CO alarms: none

CO S/R ratio: 1.165681

CO AGC intensity: 199,308 Hz

CALIBRATION/SPAN CYLINDER PRESSURES
NO cylinder pressure: 250 psi     NO cylinder outflow pressure: 48 psi
NO2 cylinder pressure 1600 psi:     NO2 cylinder outflow pressure: 34 psi
CO cylinder pressure: 1750 psi     CO cylinder outflow pressure: 42 psi
CO2 cylinder pressure: 1600 psi     CO cylinder outflow pressure: 22 psi

20200403 Replaced one side of BLC lamps and changed all sample filters (refer to notes)

- Ran Windows updates
- Removed and replaced velcro that was holding power strip inside inlet box
- Removed electrical tape that covers relay terminals and power supply terminals; it was replaced with moisture sealing electrical tape (rubber)

2020031 Replaced NOx instrument prereactor valve and performed multipoint calibrations with NO and NO2