Data sheet

FP-624D LEL

Detcon Model FP-624D is a “Smart” gas detection sensor designed to detect and monitor combustible gas in air over the range of 0-100% LEL (lower explosive limit) using matched-pair catalytic bead technology.

Model FP-624D features Detcon's MicroSafe™ intelligent electronics, nonintrusive operator interface and comprehensive fault diagnostics. The sensor transmitter features an advanced universal design that fits all existing Detcon matched-pair catalytic bead sensors dating back more than 20 years. The sensor assembly includes the detector in stainless steel housing, a base connector board, an explosion proof enclosure (available in aluminum or stainless steel), a plug-in control transmitter circuit, and a splashguard with integral cal port. The packaging is Explosion Proof (Class I, Div. 1 Groups B, C, D).

Model FP-624D is equiped with a standard analog 4-20 mA current signal equivalent to the sensor range of detection, RS-485 serial communications port, 3 alarm relays, one-man remote calibration, self-adjusting zero and span, and LED indicators for fault, alarm, and calibration status. Detcon’s combustible gas sensor has an infinite shelf life and is supported by a 2-year warranty.

  • Performance Certified to CSA 15.2

  • CSA for Class I, Division 1, Groups B, C, & D

  • Transmitter design fits all existing Detcon Catalytic Bead Sensors dating back 20 years

  • 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 - less than 3 minutes

  • LED display and LED indicators for FAULT and CAL status

  • Plug-in field-replaceable transmitter

  • Long sensor life expectancy: averaging longer than five years in harsh offshore drilling/production environments

  • High resistance to poisons such as sulfides, chlorides, silicon-based contaminants etc.

  • Low power consumption (less than 3.5 watts versus 8+ watts on competitive brands)

  • Extensive Fault diagnostics

  • Oil and Gas Drilling Rigs

  • Oil and Gas Production Sites

  • Offshore Production Platforms

  • FPSOs

  • LNG/CNG Plants

  • Refining and Petrochemical

  • Pulp and Paper Mills

  • Waste Water Treatment Plants