The Detcon IR-622 models are discontinued; replacements are detailed here and pictured. Below is a list of spare parts available for maintenance and calibration.

Non-intrusive “Smart” sensors are designed to detect and monitor Combustible Hydrocarbons over the range of 0-100% LEL (lower explosive limit). The sensor assembly consists of a miniature infrared optical sensor in a stainless steel housing that includes a splashguard with an integral calibration port, a plug-in control transmitter circuit, a base connector board and an explosion-proof enclosure.

Two choices of MicroSafe detector

966-224520-100 Model IR-622 in Aluminium Junction Box.
966-22452B-100 Model IR-622-316SS in Stainless Steel Junction Box.

Features

• cCSAus approved: Class I, Division 1, Groups B, C, & D.
• Compatible with PLCs, SCADA, DCS, 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).
• Simple menu-driven calibration – takes less than 3 minutes.
• Backlit LCD and LED indicators for FAULT and CAL status.
• Unique miniature field-replaceable optical sensor.
• Plug-in field-replaceable transmitter.
• Low power consumption.
• 5-year expected sensor life.

Spare Parts

370-365871-212 Combustible Hydrocarbon plug-in optical sensor for CH’s
926-225500-100 Plug-in transmitter control module (Model IR-622)
500-002042-000 Standard connector board Model series 600 IR sensors
390-000087-000 Stainless steel sensor housing assembly CH’s
613-120000-700 Sensor splash guard with integral cal-port – FP/DM/IR
943-000006-132 Calibration adapter FP/IR/DM/O2
975-000208-9IR Sensor Duct Mount Kit IR
612-400000-000 Sensor/Sintered Filter replacement wrench FP/DM/IR
943-002273-000 Harsh location dust guard (fits 1.5 x 18 thread)
033-003238-000 “Harsh location dust guard replacement filter for 1.5 x 18 thread (Sold in a pack of qty 20)