The SEM310 universal in-head transmitter has the HART communications protocol which allows the user to quickly and easily down-load information or interrogate the device. It enables simple re-ranging of sensor type and range; easy on site re-calibration; operation with proprietary software packages such as AMS Plant WebTM and CornerstoneTM; remote configuration on the (4 to 20) mA loop with a hand held communicator or with a PC & HART modem; online digital communication concurrent with a (4 to 20) mA analogue signal.