HI921 SIEMENS Intelligent Thermal (Heat) Detector The Intelligent Thermal (Heat) Detector (Model HI921 Siemens) provides an advanced method of detection, address programming supervision combined with sophisticated FACP communication. Model HI921 uses a state-of-the-art thermistor, microprocessor, and advanced signal analysis, providing high reliability and accuracy.
Additionally, Each Model HI921 unit is UL listed including advanced built-in ISOtechnology - a True Class-X1/2 SLC operation (use is optional) greatly improving system reliability and circuit integrity while providing advanced addressable fault finding.
Each model HI921 is a cost-effective, intelligent, addressable thermal detector that provides distinctive, advanced features: seven (7) field-selectable temperature settings specially tailored for application-specific detection needs to be combined with Class-X SLC operation built-in avoiding additional installation and material cost.
The temperature-range settings for each Model HI921 detector is between 135°F (57°C) 174°F (79°C) with fixed and rate-of-rise programmability. This variance provides the customer with maximum flexibility to program the temperature settings to suit multiple appli(more...)
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