Zeta ZIS-OSD Intrinsically Safe Optical Smoke Detector
Zeta ZIS-OSD Intrinsically Safe Optical Smoke DetectorThe ZIS-OSD optical smoke detector is designed for detection of a visible smoke at a start of a fires flameless stage when material starts to smoulder and therefore generally a long time prior to the appearance of an open flame and a noticeable rise in temperature.The detector is designed to function in closed spaces in which under normal conditions smoke dust and steam condensation are not present. Due to the implementation of analogue compensation for environmental changes the detector is characterized by an increased resistance to changes in atmospheric pressure temperature and humidity.The ZIS-OSD is an intrinsically safe detector designed for installation in explosion hazard zones. The detector can operate in Zeta manufactured fire alarm system detector lines behind a proper spark proof separator.Key FeaturesVoltage 12 28 VMax. monitoring mode current 60 AAlarm current 20 mADetectable test fires TF1 to TF5 and TF8Operating temperature range from -25 o C up to 55 o CRelative humidity up to 95 at 40 o CColour BlackDimensions with base 115 dia. x 54 mm