IPES-IR3 Flame Sensor By Tim Quine ENGR 518

Purpose Detect fires in industrial applications such as refineries, paint productions, oil and gas boilers. Send alarm signals to users receiving devices or alarm systems. This is done via closed loop current signals.

Device Characteristics Enclosure Material – Stainless Steel Grade 316 or Aluminum 6061 Weight – Stainless Steel 11 lbs. or Aluminum 5.5 lbs. Cable – 6,200 ft. (18 AWG)

Device Components IR Detectors LED Status Lights Explosive Proof Casing

Differential Signaling Lesson RS232RS423RS422RS485 Differentialno yes Max number of drivers11132 Max number of receivers Modes of operation half duplex full duplex half duplex Network topologypoint-to-pointmultidrop multipoint Max distance (acc. standard)15 m1200 m Max speed at 12 m20 kbs100 kbs10 Mbs35 Mbs Max speed at 1200 m(1 kbs)1 kbs100 kbs Max slew rate30 V/μsadjustablen/a Receiver input resistance3..7 k 4 k 12 k Driver load impedance3..7 k Receiver input sensitivity ±3 V±200 mV Receiver input range ±15 V±12 V±10 V –7..12 V Max driver output voltage ±25 V±6 V –7..12 V Min driver output voltage (with load)±5 V±3.6 V±2.0 V±1.5 V

Device Specifications

Square Law and Wavelengths

Signaling Outputs – Industry Standard 4-20 mA +/- 0.1 mA, 2 alarm relays, digital and analog. StateIR3 Status Fire Relay StateFault Relay Status Output signal, mA LED Status Condition Normally open when energized Normally closed when energized 1 No power supply voltageOpen 0Off 2 After switching on during 45 sec. Open 2 Continuous green LED light for first 10 sec, then flashing green LED 3 Fault or optical interference (dust)Open 2 Alternate flashing of the yellow and green LED lights 4 Normal (no faults or fire during operation)OpenClosed4 Continuous lighting of the green LED light 5FireClosed 18Continuous red LED light 6 Fire & Fault ClosedOpen8 Alternate flashing of the yellow and green LED light 7 Test mode (magnetic collar is on)Open 2 Magnetic collar is on. Fire relay is blocked

Sensitivity FuelDistanceFire SizeAvg. Time N-Heptane2111 ft x 1 ft9 sec Methanol1511 ft x 1 ft9 sec Ethanol1511 ft x 1 ft11 sec Diesel1511 ft x 1 ft15 sec Diesel1512 ft x 2 ft10 sec Gasoline1751 ft x 1 ft10 sec JP ft x 1 ft10 sec JP ft x 2 ft10 sec Methane1513/8 x 310 sec Stimuli modulated at 1.5 Hz and also un-modulated Field of vision

Probability Review Times 9 sec 11 sec 15 sec 10 sec

False Alarms Cost industries money due to down time. Must know difference or the result could be catastrophic. Uses microprocessor, algorithms, multiple sensors and wavelength range settings.

Competitors Technologies Bimetal thermal switches Computer Imaging Programs Smoke detectors SAFE air sample analysis

My Future Uses Compressed Air Foam System Small scale flame sensors Detecting all fires

References files/files/IPES-IR3rep-WEB pdfhttp:// files/files/IPES-IR3rep-WEB pdf /files/IPES%20IR3%2003_28_2012.pdfhttp:// /files/IPES%20IR3%2003_28_2012.pdf multi-spectral-flame-detector.phphttp:// multi-spectral-flame-detector.php **All images in powerpoint are from Google Images**

Questions?