Detcon Model IR-640 sensors are non-intrusive “Smart” sensors designed to detect and monitor Carbon Dioxide. Available ranges of detection are 0-0.3%, 0- 1%, 0-3%, and 0-5% by volume. The sensor assembly consists of a miniature infrared optical sensor in stainless steel housing, a plug-in control transmitter circuit, a base connector board and an explosion proof enclosure. Electrical Classification: Class I, Division 1, Groups B, C, & D

_ Compatible with PLCs, SCADA, DCS, or a variety of host controllers via 4-20 mA, and/or RS-485, and/or alarm relays

_ Sensor status and parameters accessible via RS-485 (Modbus™)

_ Menu programmable relays standard (two alarms plus fault)

_ Unique miniature field-replaceable optical sensor

_ Simple menu driven calibration - takes less than 3 minutes

_ Backlit LCD and LED indicators for FAULT and CAL status

_ Plug-in field-replaceable transmitter

_ Low power consumption

_ 5-year expected sensor life