The Stahl Series 9160 Transmitter Supply Unit is a versatile solution for hazardous area applications, offering two channels in transmitter supply and repeater mode. This unit operates with auxiliary power ranging from 18 to 31.2 V AC/DC and delivers a passive output of 0/4 mA to 20 mA with HART communication to nonhazardous locations. Designed for reliability, it functions optimally within a temperature range of -20°C to +70°C and is rated IP30 for protection against solid objects. Ideal for installation in zone 2 environments, this device supports both two- and three-wire transmitters as well as mA sources including four-wire transmitters. It boasts high accuracy and is suitable for safety-related applications up to SIL 2 as standard, with a special version available for requirements up to SIL3 according to IEC/EN 61508 standards. The Stahl brand ensures quality and dependability in automation interfaces and solutions within hazardous areas.