Technical Manual

XNX Universal Transmitter
Section 6 - Specications
141
Gas type Part Number Gas Type Applied Concentration Unit Reading Unit
PH
3
XNXXSP1SS
Carbon Monoxide 2000 ppm <10 ppm PH
3
Hydrogen 5000 ppm <10 ppm PH
3
Chlorine 1 ppm -70 ppm PH
3
Nitrogen Dioxide 8 ppm -860 ppm PH
3
Ethanol 2000 ppm <10 ppm PH
3
Iso-Propanol 1000 ppm <10 ppm PH
3
Hydrogen Chloride 10 ppm <10 ppm PH
3
Hydrogen Fluoride 10 ppm <10 ppm PH
3
Hydrogen Sulfide 0.5 ppm 70 ppm PH
3
Ammonia 100 ppm 1050 (transient) ppm PH
3
Sulfur Dioxide 50 ppm 550 (transient) ppm PH
3
Silane 1 ppm 364 ppm PH
3
Arsine 1 ppm 680 ppm PH
3
Diborane 1 ppm 454 ppm PH
3
Germane 1 ppm 454 ppm PH
3
NOTES:
• Theguresofcross-sensitivityaretypicalvaluesandshouldnotbeusedasabasisforcrosscalibration.
• Cross-sensitivities may not be linear and should not be scaled.
• For some cross-interferentsbreakthroughmayoccurifgasisappliedalongertimeperiod.
• Therearemanygasesandvaporsthatcanpoisonelectochemicalcells.Itisdifculttogiveacompleteandexclusivelistofallspecies
whichwillhaveaneffectonthesensors.However,thesearesomecommonsubstanceswhichshouldbeavoided:
• Airbornegreases-Thesemayblockgasaccessintothesensorsandthereforereducesensitivity.
• Siliconecompounds-Theseareoftenfoundinsprays,aerosols,lubricants,polishes,adhesives,sealants,zebrastrip,cleaningagents,
andoorwaxes.Thesecompoundstendtoreducethesensitivityofthesensorsandgenerallywillhaveapermanenteffect.
• Solvents and organicvapors-Manyorganicvaporswilldamagethesensors.SomecommononesareIPA,toluene,xylene,other
benzinederivatives,petrol,anddiesel.Itisdifculttogiveafulllistoforganicvapors,astherearesomanyofthem.Generally,any
organic vapor should be avoided.