ModelsHTRI-D/-DZ, HTRI-R/-RZ and HTRI-S/-SZ (and USCG-H. PLATE. for Marine installs) Product Overview. The Siemens ─ Fire Safety HTRI-series. I. ntelligent interface modules are designed to provide the means of interfacing direct shorting devices to the fire-alarm control panel (FACP) loop circuit. The HTRI-series modules provide the most ... 4/208 Siemens FI 01 · 2013 4 Overview The Siemens SITRANS LG series are guided wave radar trans-mitters for level, level/interface, and volume measurement of liquids and solids. It is unaffected by changes in process condi-tions, high temperatures and pressures, and steam. Benefits † High accuracy to +/- 2 mm 6 ˘ !7 7 + mounting slots for 4 inch square electrical box mounting slots for doublegang electrical box mounting holes for switchplate tri-s/-d/-r Personalization saves you typing! If you have already been registered, you can login directly. If you are not registered yet, you can inform and register yourself without obligation here (our service is free of charge). Model HCP from Siemens─Fire Safety is an intelligent control point device designed for use with various Siemens ─Fire Safety FACPs, as well as with the Siemens ─Fire’s NAC series of alarm signaling devices. Model HCP can be configured as an independent, remotely located telephone zone, speaker zone or NAC.