MS183 , a smart 2-wire in-head and dual-input transmitter module with HART® -protocol, has measurement input for resistance Thermometers (RTD), thermocouples, resistance or millivolt signals in 2-, 3- or 4-wire connection and converts various input signals into a standard 4 to 20 mA analog(high selector, average value or D-value) output signal or 2-way digtal output signals with HART® -protocol after linear processing. The transmitter is programmable directly from PC or via the HART communication. Isolation also is provided between the input and output. A special signal can be set in advance while the sensor burnout or short. Primary Technical Characteristics Programmable Use PC or the hand operator Measuring range Set via PC or by the hand operator Input type Dual-input ( RTD, TC, R or Millivolt signal) Convert accuracy ¡Ü0.1£¥FS Cold junction accuracy ¡À1¡æ(TC) Output 4¡«20mA/20¡«4mA Electrical isolation output HART ¨CProtocol output (2-way) Max-load £¨V -16V£©/0.025A£¨Current output £© Limit current ¡Ü25mA Response time 1s Isolated voltage 1500VAC (input/output) Alarm signal Programmable Underranging linear drop to 3.8 mA Overranging linear rise to 20.5 mA Sensor break or short-circuit: ¡Ü3.6mA or ¡Ý21.0mA Automatic switching while sensor damaged Power supply 16¡«30V DC Temperature drift 0.01£¥ FS/1¡æ Long-term stability ¡Ü0.1¡æ per year or 0.05 £¥per year.