@prefix ns0: <https://gcmd.earthdata.nasa.gov/kms#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/e6e29103-5539-4638-a561-44cee176df9e>
  ns0:reference [ ] ;
  ns0:altLabel [ ] ;
  skos:changeNote """2021-05-10 13:47:02.0 [tstevens]  
insert AltLabel (id: null
category: primary
text: Aerolaser AL5002 CO Monitor
language code: en); 
insert Definition (id: null
text: The AL5002 from Aero-Laser is a fast carbon monoxide (CO) monitor with a unique sensitivity below 1ppb (parts per billion). The detection of CO is based on a VUV-fluorimetry, employing the excitation of CO at 150nm. This method combines high sensitivity with high selectivity and is linear from 1ppb to 100 ppm. The excitation light is generated by a CW-CO2 resonance lamp, which needs only low maintenance. A monochromator unit, using dielectric mirrors, filters out the VUV from the lamp’s spectrum. The fluorescence light in the wavelength range between 160 nm and 190 nm is detected by a VUV sensitive photomultiplier followed by a fast counter. The AL5002 calibrates within minutes, using only a small amount of calibration gas and an in-built zero gas source. The calibration procedure is fully automatic and can be scheduled in custom-set time intervals. The gas concentration is displayed in real-time and is logged via a standard RS-232 interface. Parameter/diagnostic information (e.g. of pressures, flows, temperatures) are logged simultaneously with the measurement data allowing fast troubleshooting of problems.
language code: en); 
""", """2021-05-10 13:44:28.0 [tstevens] Insert Concept 
add broader relation (Aerolaser AL5002 [e6e29103-5539-4638-a561-44cee176df9e,606913] - Chemical Meters/Analyzers [3d25724b-832f-4a61-b0b2-4f2ccecdba94,598603]); 
""" ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/3d25724b-832f-4a61-b0b2-4f2ccecdba94> ;
  skos:prefLabel "Aerolaser AL5002"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments> ;
  skos:definition "The AL5002 from Aero-Laser is a fast carbon monoxide (CO) monitor with a unique sensitivity below 1ppb (parts per billion). The detection of CO is based on a VUV-fluorimetry, employing the excitation of CO at 150nm. This method combines high sensitivity with high selectivity and is linear from 1ppb to 100 ppm. The excitation light is generated by a CW-CO2 resonance lamp, which needs only low maintenance. A monochromator unit, using dielectric mirrors, filters out the VUV from the lamp’s spectrum. The fluorescence light in the wavelength range between 160 nm and 190 nm is detected by a VUV sensitive photomultiplier followed by a fast counter. The AL5002 calibrates within minutes, using only a small amount of calibration gas and an in-built zero gas source. The calibration procedure is fully automatic and can be scheduled in custom-set time intervals. The gas concentration is displayed in real-time and is logged via a standard RS-232 interface. Parameter/diagnostic information (e.g. of pressures, flows, temperatures) are logged simultaneously with the measurement data allowing fast troubleshooting of problems."@en ;
  a skos:Concept .

<https://gcmd.earthdata.nasa.gov/kms/concept/3d25724b-832f-4a61-b0b2-4f2ccecdba94>
  skos:prefLabel "Chemical Meters/Analyzers"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/e6e29103-5539-4638-a561-44cee176df9e> .