Honeywell XNX Technical Manual

XNX Universal Transmitter
Section 3 - Calibration
92
Asthesensordetectsthegasandtheconcentrationincreases,
thevaluesdisplayedwillreectthechangingconcentration�
Whentheconcentrationvaluesarestable,3minutes,select
✓
to
allowthetransmittertocalculatethezeroadjustment�Selecting
✖
willreturntotheGasCalibrationmenu�
Figure 196. Zero Calibration in Progress
3�Ifthezerocalibrationissuccessful,thetransmitterwill
displaytheZeroPassedscreen�
Figure 197. Zero Calibration Passed
Span Calibration
IfaSpanCalibrationisnotrequired,selectthe
✖
toskipthe
SpanCalibrationandreturntotheCalibrationmenu�
4�WhentheZeroCalibrationiscomplete,theSpan
Concentrationscreenappears�Thegasconcentration
fortheSpanGasCalibrationcanbechanged�IftheSpan
Calibrationisskipped,theGasCalibrationscreendisplays�
Figure 198. Span Gas Concentration Screen
5� Entertheconcentrationofthespangasbyselecting
✓
to
choosetherstdigit�Usethe
 switchestoincrementor
decrementthevalues�Use
✓
toacceptthenewvalueand
movetothenextdigit�Continueuntilalldigitshavebeen
selected�
Sensor Reading
at Current Settings
Calibration Gas
Concentration
Figure 199. Span Calibration Screen
6�Applythespangas�Asthesensordetectsthegasandthe
concentrationincreases,thevaluesdisplayedwillreect
thechangingconcentration�Whentheconcentration
valuesarestable,select
✓
toperformthespan�TheSpan
Calibrationprocessalsodetermineswhetherthesensor
iswithintheproperrangetoaccuratelydetectthetarget
gas�
Selecting
✖
willcancelthespancalibrationandreturnto
theGasCalibrationmenu�
7�Whenthesensorhascompletedthecalibrationandthe
spanalgorithmshavedeterminedthatitiswithinrange,
theSpanPassedscreenwillappear�

Honeywell XNX Specifications

General

Ingress Protection	IP66/67
Product Type	Universal Transmitter
Enclosure Rating	IP66/67
Display	LCD
Communication Protocols	HART, Modbus, Foundation Fieldbus
Power Supply	24 VDC nominal, 18-32 VDC
Operating Temperature	-40°C to +65°C (-40°F to +149°F)
Material	Aluminum or Stainless Steel
Gas Types	Toxic, Oxygen, and Combustible gases
Output	4-20 mA
Relays	3 programmable relays
Approvals	ATEX, IECEx, UL, CSA
Sensor Compatibility	Electrochemical, catalytic, infrared, and other sensor types