The ZIS-OSD optical smoke detector is designed for detection of a visible smoke at a start of a fire’s 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 re alarm system detector lines behind a proper spark proof separator.

• ZIS-OSD Zeta Intrinsically Safe Optical Smoke Detector
• ZIS-40 Base for Intrinsically Safe Smoke Detector
• ZIS-40/W Optional ZIS-40 Base Mounting Attachment With PG-7 Sealing Gland

The ZIS-FLD flame detector is designed for detection and signalisation of a flame ignition in case of a re hazard.

The ZIS-FLD flame detector is intrinsically safe (IS) to be used in explosion hazard areas. It operates in detection lines connected to Zeta re alarm system control panels with an appropriate spark proof separator.

The ZIS-FLD detector is designed for conventional use.

• ZIS-FLD: Zeta Intrinsically Safe Flame Detector
• ZIS-33: Base for Intrinsically Safe Flame Detector

The ZIS-PHD heat (temperature) detector is designed to detect a fire hazard in rooms, where during the first phase of a fire a rapid rise of temperature may occur, or where temperature may exceed a defined danger level.

The ZIS-PHD is a universal heat detector, which can be programmed to operate as a fixed temperature or fixed/rate-of-rise heat detector. It is also possible to change the class of these detectors adapting them to specific applications. The PN-EN 54-5 European standard allows a choice of one of the following classes of detector sensitivity: A1R, A1S, BR or BS.

The ZIS-PHD is a spark proof detector, due to which it can be used in explosion hazard areas. These detectors operate in Zeta manufactured fire alarm system detector lines behind a proper spark proof separator.

• ZIS-PHD: Zeta Intrinsically Safe Programmable Heat Detector