THERMOSTICK AACUSP Ziton Alarmline AACUSP Self-programmable analog LHD control unit

AACUSP is a self-programmable analog jacket heat sensing (LHD) cable control unit. It provides the monitoring of any LHD sensor cable in the Alarmline II range, the configuration of alarm and early alarm temperatures, as well as allowing a simple interface with a main fire alarm or a BMS system. In addition to monitoring the LHD sensor cable for temperature changes, the control unit also monitors any open circuit and short circuit faults along the cable, ensuring notification if the cable is damaged. It is equipped with its own internal temperature monitor and if the temperature inside the controller case reaches 100°C (212°F), an alarm will be signaled. Up to 500 m (1640 ft) of LHD sensor cable can be connected to each control unit, which acts as a single detection zone. When the LHD sensor cable and the control unit are installed in different areas, a suitable interposition cable can be used to make the electrical connection between them. The AACULP provides LED indications and an LCD display. The internal buttons allow configuration without the need for a PC. Early warning and alarm thresholds can be set through simple menu options without the need for charts or nomograms. The initial configuration is performed by measuring and inserting the calibration resistance of the sensor cable, eliminating the need to know the length of the sensor cable. Voltage-free switching contacts are provided inside the control unit for early alarm and alarm signaling to a main fire control unit or to a BMS system. An optoisolated safety phototransistor fault output is also provided. There are no user controls provided on the control unit. An isolated input is provided that allows remote recovery functionality.