Rosemount 248HAE5A2XA Temperature Transmitter Assembly

The Rosemount 248HAE5A2XA is a head-mount temperature transmitter assembly designed for reliable temperature measurement in industrial applications. Manufactured by Rosemount (Emerson), this device features a PT100 RTD sensor in a 4-wire configuration, pre-calibrated for a range of 0 to 100°C, making it ideal for process control in chemical, oil & gas, and pharmaceutical industries. It supports 4-20 mA output with HART protocol for seamless integration with control systems, offering high accuracy and stability. Key advantages include its compact design for easy installation in tight spaces, robust construction for harsh environments, and FM Explosion-proof certification (E5 code) for hazardous areas. Compared to similar products like the Yokogawa YTA series, the Rosemount 248 provides better HART compatibility and lower long-term drift. Benefits include reduced maintenance due to self-diagnostics and easy configuration; drawbacks may include the need for separate power supply and potential compatibility issues with non-HART systems. This unit is an unused open-box item from 2012, missing the optional mounting hardware for HART smart head (as noted on tag), but fully functional with attached probe. It excels in applications requiring precise, real-time temperature monitoring with minimal recalibration.