Shield Digital Linear Heat Detection Cable uses xed temperature detection technology to provide an easy method for sensing changes in temperature levels. The cable can oer alternative overheat protection in a vast range of applications and evironments, from tunnels, cable trays, warehousing to sensing changes in temperature within escalators and other applications where many risks
of re are hidden from view.
The digital linear hear detectin cable can be directly connected to a single zone of a conventional fire alarm control panel, or, using an addressable zone/switch monitor, the digital linear heat detection cable can easily be interfaced to an addressable loop.
Digital linear heat detection cable is comprised of a pair of twisted low resistance, tri-metallic conductors, sheathed in advanced temperature sensitive polymers. When the cable reaches the required temperature the two twisted cores will fuse together, with a re triggering resistor attached to the input interface and single core of linear heat cable to activate an alarm at the main fire panel.
DIGITAL CONTROL MODULE
A UL864 10th edition approved Digital Control Module is available and provides additional benefits when used with the Digital LHD cable. It can simultaneously monitor up to two zones of LHD cable and has separate fault and alarm outputs for each zone. A built in display shows the state of each zone, including the distance in meters and feet to the alarm point if an alarm is triggered. It also includes an RS-485 Modbus RTU output for integration with a PLC or SCADA system.