The Raychem TraceTek TTDM-128 leak-detection and location panel is an upgrade to the previous TTDM and TTDM-Plus panels, this latest incarnation allows the connection of up to 128 modules on its dedicated network allowing up to 192 kilometers of sensing cable to be deployed. The network can be made up of any mix of sensor interface modules (TTSIM), relay modules (TT-NRM) or additional TTDM-128 modules.
Areas and rooms can be named to simplify leak locating using the regions/tagging function.
The 4-20mA Analogue current transmitter has been omitted from this version but is still available as a plug in board if required.
The TTDM-128 is available in 2 variants:
Standard external interface modes include: dry contacts via Summary relay contacts, and RS232/RS485 modbus communication.
TTDM-128 Data Sheet Raychem (2003)
TTDM-128 Data Sheet Pentair (2016)