The model 20-20 MI is a high-performance and highreliability, self-contained, triple spectrum flame detector. This detector is specially designed for industrial applications with the highest immunity to false alarms. The patented triple IR design offers two to three times the detection distance of any conventional IR or UV/IR detector. The patented triple IR scans for oscillating IR radiation (1 to 10 Hz) in the spectral bands ranging from 4.0 to 5.0 microns. Each sensor band pass has been selected to ensure the greatest degree of spectral matching to the radiant energy emissions of fire, and the lowest degree of matching to non-fire stimuli. This highly advanced detector uses a programmed algorithm, which checks the ratio and correlation of data received by the three sensors. Only detection of radiation emissions matching the spectral fingerprint of fire will produce an alarm, making the 20-20 MI immune to false alarms. The M.T.B.F. (Mean time between failures) is calculated to be 100,000 hours (11+ years). This outstanding performance permits a 3-year warranty on the entire detector, not just the sensors.

• Triple-spectrum design • 80% less power consumption • Highly immune to false alarms • Sensitivity selection • User-programmable configuration • Automatic & manual built-in test • Standard 4-wire connection • M.T.B.F. minimum 100,000 hours

mechanical Dimensions: 122 x 100 x 65 mm Weight: Aluminium: 0.5 Kg **Stainless Steel: 1.2 Kg Spectral response: Three IR band channels Detection range: 1 sq.ft. gasoline fire @ 40m* 1 sq.ft. n-heptane fire @ 40m* 1 sq.ft. diesel oil fire @ 25m* 1 sq.ft. 95% alcohol fire @ 30m* 1 sq.ft. JP4 fire @ 25m* * Highest sensitivity setting. Response time: Typical 5 seconds. Adjustable time delay up to 30 seconds. Sensitivity range: Four sensitivity ranges set by software for gasoline pan fire of 1x1 sq.ft.: Sensitivity range Detection range 1 33ft. (10m) 2 66 ft. (20m) 3 100ft. (30m) 4 133ft. (40m) Field of view: 100° horizontal, 100° vertical. Built-in-test: Manual & automatic BIT. Temperature range: Operating: - 40°F to 160°F Storage: - 65°F to 185°F Humidity: Relative humidity of up to 90% for the operational temperature. ** carries additional charge. electrical Operating voltage: 18-32 Vdc Power consumption: Max. mA in standby Max. mA in alarm Electrical connection: 12-wire electrical connector (suitable connector will be supplied). Option 12-wire cable (for junction box connection). Electrical input protection: Complete electrical interface protection against reversed polarity voltage, surges & spikes according to MIL-STD- 1275.