Manual

95-853314.1 B-1 95-8533B-1
APPENDIX B
CSA INtErNAtIoNAl CErtIfICAtIoN DESCrIPtIoN
hazardous locations
•RefertoFiguresB-1andB-2forSystemClassificationdetails.
•EQxxxxEMversionsratedClassI,Div.2,GroupsA,B,C,D(T4A).
gas detection
•Combustible Gas Performance verified for 0 to 100% LFL methane-in-air atmospheresper CSA C22.2 No. 152.
Accuracy: ±3% LFL from0to 50%LFL, ±5% LFL from51%to 100%LFL.  For the Model PIRECL, referto the
PIRECLmanual(formnumber95-8526)forfurtherCSAgasperformancedetails.
NOTE: Detector Electronics combustible gas detection K factors are not CSA veried.
•CalibrationofthedeviceshasbeenCSAverifiedusingtherespectiveEQ22xxDCU,EQ22xxDCUEXandPIRECL
SerieswiththeDet-Tronics225130-001(50%LFLmethane)and227115-001H2SCalibrationKits.
•TheEQ22xxDCUSeriescanbeusedwithanyCSACertified4-20madevice.
NOTE
CSA Certication of the 4-20 ma input does not include or imply approval of the gas detection apparatus such
as sensors, transmitters, or devices connected to the system. In order to maintain CSA Certication of the
system, all 4-20 ma gas detection instruments connected to the input must also be CSA Certied.
NOTE
CSA Certication allows the presence and operation of serial communications software in the Controller
(MODBUS, Allen Bradley protocols, etc.); however, the communications functions are not included in the
Certication.