2.3 ACCESSORIES
TheApexaccessoriesprovideoptionalequipmentthatcan,forexample,protecttheCertied 
Sensor in harsh external environments and assist gas monitoring. All of the sensor accessories are 
easilytted.
Thefollowingaccessoriesareavailable:
 •  Certied Junction Box (Part Numbers: ATEX Ex d  
    2110B2100, UL/CSA [Explosion proof] 2110B2103) - two  
   typesforremotemountingaCertiedSensor.
 •  Collecting Cone(PartNo:2110B2151)-forusewhen 
      monitoring lighter-than-air gases.
 •  Flow Housing(PartNo:2110B2140)-toaidsensor 
      calibration and gas sample monitoring. 
 •  Weather Housing (PartNo:2110B2150)-toprotectthe 
      sensor from harsh weather. 
 •  Sunshade (PartNo:2110B2152) - to protect the sensor  
      from direct sunlight.
 • Filters -threedifferentlterstoprovideprotectionforthe 
      gas sensing cartridge.
 • O
2
 Transducer Adaptor - supplied with Oxygen cartridges to  
      allow for their longer length over standard cartridges.
2.3.1  Certied Junction Box
Part Numbers:  
ATEX Ex d       2110B2100 
UL/CSA (Explosion proof)   2110B2103
TheCertiedJunctionBoxaccessoryisusedtomountaCertiedSensorremotelyfromthe
TransmitterUnit,andprovidesaconnectionpointforthesensorandeldwiring.
2.  OVERVIEW