Det-Tronics 505 Combustible Gas Detector Transmitter with Combustible Gas Sensor CGS - Manual (Page 18)

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APPENDIX A
FM APPROVAL
THE FOLLOWING ITEMS, FUNCTIONS AND OPTIONS DESCRIBE THE FM APPROVAL.
MODEL 505 SERIES COMBUSTIBLE GAS TRANSMITTER
• Explosion-proof for Class I, Division 1, Groups B, C, & D Hazardous (Classified) Locations per FM 3615.
• Dust-ignitionproof for Class II, Division 1, Groups E, F, & G, Class III Hazardous (Classified) Locations per FM
3615. (For use with Sensor Termination Box.)
• Enclosure rating NEMA/Type 4X per ANSI/NEMA 250. (For use with Sensor Termination Box.)
• Operating temperature limits are –40°C to +75°C (–40°F to +167°F).
• Storage Temperature Limits are –55°C to +85°C (–67°F to +185°F).
• Explosion-proof ambient temperature limits are –55°C to +125°C (–67°F to +257°F).
• Relative humidity range is 5 to 95% RH.
• Performance verified for 0 to 100% LFL methane-in-air atmospheres per FM 6320. Accuracy: ±3% LFL from 0 to
50% LFL, ±5% LFL from 51% to 100% LFL.
• For use with 226365-118 through 226365-125 Sensor Termination Boxes.
• For use with Model CGS Series Combustible Gas Sensor.
NOTE
The high temperature characteristic has not been FM performance verified above 75°C.
NOTE
Detector Electronics combustible gas detection K factors are not FM verified.
NOTE
Metric straight thread types are for use in non-North American applications.
Calibration
• Calibration of the above listed sensors has been FM verified using the Det-Tronics 225130-001 (50% LFL methane)
Calibration Kit.