131
6.2.2ECSensorPerformanceData,FactoryMutualVeried(seeSection6.3)
Gas Cartridge P/N
Selectable Full
Scale Range (Dis-
play and 4-20mA
Full Scale)
Default
Range
Range
Incre-
ments
Lower
Alarm
Limit
Lower
Detection
Limit
Lower
Explosive
Limit
(% Vol)
Zero
Deviation
Selectable
Cal Gas
Range
Default
Cal Point
Response
Time (T50)
sec
Response
Time (T90)
sec
Accuracy
Operating Temperature Operating Humidity
Min Max Min Max
O
2
Oxygen XNXXSO1FM n/a 23.0%Vol n/a 5.0%Vol 5%Vol n/a n/a
20.9%Vol
(fixed)
20.9%Vol T20<10 <30 <+/-0.5%Vol -30°C/-34°F 55°C/131°F 15%RH 90%RH
H
2
S HydrogenSulfide XNXXSH1FM 10.0to50.0ppm 15.0ppm 0.1ppm 5.0ppm 1.5ppm n/a -2.5ppm
30to70%
ofthe
selectedfull
scalerange
10ppm <20 <30
2ppmor10%of
reading,whicheveris
greater
-40°C/-40°F 55°C/131°F 15%RH 90%RH
CO CarbonMonoxide XNXXSC1FM
1
100to1000ppm 300ppm 100ppm 30ppm 15ppm na/ -25ppm 100ppm <15 <30 Seefootnote1 -40°C/-40°F 55°C/131°F 15%RH 90%RH
FOOTNOTES:
1.XNXXSC1FMaccuracyovertemperature<±10%ofreading20°C/68°Fto55°C/131°F,<±20%ofreading20°C/68°Fto-10°C/14°F,<±30%ofreading-10°C/14Fto-20°C/-4°F�
Recalibrationisrecommendedifthetemperatureofthelocalenvironmenthasvariedbymorethan-30°C�
NOTES:
• Performanceguresaremeasuredbytestunitscalibratedat50%offullscale,atambientconditionsof20°C,50%RH,withtheECweatherproofcoverattached
• IPratingofFMCartridgesisIP63�
• BarometricpressureeffectsontheO
2
sensor:TheoutputfromtheO
2
sensorhaspressureeffectsof<0�1%changeofoutputper%changeinpressure�Whenthebarometric
pressurechangesby±20%theoutputfromtheO
2
sensorchanges<±0�4%Vol�However,theoxygensensorshowstransientbehaviorwhensubjectedtoarapidchangein
ambientpressureduetoeitherweatheroraltitude�Forexample,a10KPainstantaneouspositivepressurestepchangemaycauseanoverscalealarmconditionforaperiod
ofabout12seconds�
• OperatingtheXNXECsensoratextendedtemperaturerangesforaprolongedtimeperiodexceeding12hoursmycausedeteriorationinthesensorperformanceandshorten
sensorlife�ExtendedtemperaturerangeforXNXECsensorsis-40°Cot-20°C�
• Responsetimesmayincreaseatlowertemperatures�
• FMperformanceverificationislimitedtotherequirementsofthestandardsidentifiedinTable6�3foreachcartridge�
• ContactHoneywellAnalyticsforadditionaldataordetails�