Spectrex 20/20SH - Hydrogen Flame Detector - Manual (Page 10)

Spectrex Inc. - SharpEye TM Hydrogen (SH) Flame Detector Manual – TM 784600, Rev. A, May 2005
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2. Technical Description
• Detection Range: up to 100 ft (30 m) for an Hydrogen plume fire with 20”
(0.5m) height and 8” (0.2m) width.
• Ultra High Immunity to False Alarms (see section. 3.3).
• Advanced Digital Processing of the Dynamic Characteristics of Fire:
Flickering, Threshold correlation and Ratio.
• Three Separate IR Channels: Between 1-4 microns.
• Field Programmable Sensitivity: four ranges.
• Two Response Levels: Warning & Detection.
• Solar Blind
• Microprocessor Based: Digital signal processing.
• Built In Test: Manual and Automatic (see section. 4.2.2).
• Electrical Interface:
o Dry contact RELAYS.
o Communication network RS-485.
o 4-20mA output.
• Certification: Pending by F.M and ATEX.