Detcon CXT-IR - Manual (Page 12)

Model CXT-IR
2. Installation
2.1 Hazardous Locations Installation Guidelines for Safe Use
1. Install the sensor only in areas with classifications matching the approval label. Follow all warnings
listed on the label.
Figure 10 Approval Label
2. Do not remove the junction box cover while in the classified are unless it is conformed the there is no
explosive gas levels in the area.
3. A good ground connection should be verified between the sensor’s metal enclosure and the junction
box. If a good ground connection is not made, the sensor can be grounded to the junction box using
the sensor’s external ground lug. Verify a good ground connection between the junction box and earth
ground.
4. Proper precautions should be taken during installing and maintenance to avoid the build-up of static
charge on the plastic components of the sensor (Rain Shield and Antenna Dome Cover) Wipe with
damp cloth on plastic components to avoid static discharge.
5. Do not substitute components. Substitution of components may impair the intrinsic safety rating.
6. Do not operate the sensor outside of the stated operating temperature limits.
7. Do not operate the sensor outside the stated operating limits for voltage supply.
8. These sensors meet ATEX standards EN60079-0:2012. EN60079-1:2007 and EN60079-11:2012.
9. These sensors have a maximum safe location voltage of UM=30V.
10. These sensors pass dielectric strength of 500VRMS between circuit and enclosure for a minimum of 1
minute at a maximum test current of 5mA.
11. The CXT-IR must only use combustible sensing cell model 371-IR1II1-000.
12. The CXT-IR is only to be used with Detcon P/N 360-026500-000 batteries (Tadiran Model TL-5920).
The battery holder utilizes three of these batteries in series to operate the sensor.
WARNING:
CSA certification does not include wireless communication or Modbus used for combustible gas
performance.the wireless communication or Modbus may only be used for data collection or
record keeping with regard to combustible gas detection. Gas indication and alarm fnctions for
performance are only permitted locally by the detector.
CXT-IR Instruction Manual Rev. 1.6 Page 8 of 44