(888) 212-6324 or click here to contact us.įire Alarm System is designed to alert us to an emergency so that we can take action to protect ourselves, staff, and the general public. Ask your Alpha Account Manager about the most advanced and dependable protection for your people and facility. We Proudly Serve the Following MarketsĪlpha’s advanced fire alarm solutions team can provide a Fire Alarm System that will meet your facility’s needs.
Global plasma solutions™ Benefits for HVAC.The use of an optical processing technique as opposed to the use of two separate electronic sensors improves the overall reliability of the detector, by reducing the number of components and eliminating the need for complex calibration procedures during manufacture. This prediction is independent from the temperature of the radiation source, allowing the AUTOCALL S252f+ to provide blackbody rejection over a wide range of source temperatures. The signal obtained from this “guard” channel is cross-correlated with the signal from the flame detection channel to provide an accurate prediction of the non-flame energy present in the flame detection waveband. The design incorporates an optical filter which enables a single infrared sensor to measure the radiated energy present in two separate wavebands placed on either side of the flame detection waveband, at 3.8µm and 4.8µm respectively (see Figure 1). Operation The AUTOCALL S252f+ applies a new concept for eliminating false alarms from modulated blackbody sources. It incorporates two different color light emitting diodes, and by using differing flash rates, provides separate indication of alarm, detector (electronic) fault and “dirty” window (optical integrity monitoring). The AUTOCALL S252f+ incorporates a sophisticated, built-in, self test function that tests the detector every 20 seconds for window contamination and electronic circuitry functionality signals.
AUTOCALL FIRE ALARM SERIES
All electrical interfaces are supported through the AUTOCALL TFX series fire alarm control panels.
The AUTOCALL S252f+ incorporates the dual, solar blind feature. Not in the Edge of the Window) General Information The AUTOCALL S252f+ explosionproof flame detector is the result of over 30 years experience in the development and manufacturing of infrared, solar blind and multichannel infrared flame detectors with low power consumption and high false alarm immunity. ANALOG ADDRESSABLE INFRARED FLAME DETECTOR AUTOCALL ® S252f+ Series Features n Triple Waveband, Infrared, Solar Blind Flame Detection for Optimum False Alarm Immunity n Black Body Rejection Over a Wide Range of Source Temperatures n Range Adjustable to 164’ (50m) for a 0.1m Gasoline Pan Fire n Discrimination of Optical Faults (Dirty Windows) from Other Faults in the Built-in Self Test n Very Low Power Consumption (0.35mA) n Powered Directly By Signaling Circuit No Additional Power Required (S252f+) n Analog Addressable Interface to AUTOCALL TFX Series Control Panels n Patented, Dual Filter, Complete Solar Blindness for Outdoor Use n Explosionproof to Meet Applicable NEMA and NEC Requirements n 90 o Field of View n Housing Designed for Easy Installation of Wiring n Flexible Mounting and Angular Adjustment n Rugged Stainless Steel Alloy Housing and Mounting Bracket n Operating Temperature Range of -40 o F to 176 o F (-40 o C to 80 o C) n Variable Response Times and Sensitivity Settings n Remote Self Test and Range Setting n True Window Test in Detection Area (i.e.
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