Det-Tronics EQP Fire and Gas Detection/Releasing System - Manual (Page 133)

95-8533 14.1 B-1 95-8533 B-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 verified.
• 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 Certification 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 Certification of the
system, all 4-20 ma gas detection instruments connected to the input must also be CSA Certified.
NOTE
CSA Certification 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
Certification.