The TTDM128 unit monitors up to 5000 feet (1500 m) and/or up to 127 external TTSIM units. Each TTSIM1 unit can monitor an additional 5000 foot (1500m) length of sensor cable, providing total system
capacity in excess of 150,000 feet or more than 48 km. When liquid is detected on any segment of sensor cable, the TTDM128 sounds an alarm, closes relay contacts, turns on an LED and displays the
channel number and location of the leak on an LCD display. The leak detection event is logged to an event history file and all status and event information is made available via RS232/RS485 MODBUS
to any host PLC or plant or building automation system. A simple map showing where the sensor cable has been installed is the only field calibration requirement. Each segment of sensor cable
detects, locates and tracks leaks entirely independent from one another. There is no loss of sensitivity and no remapping required after an initial leak is detected.