Indicator/controller for digital sensors with Modbus protocolThe unit has 1 digital interface, 1 analogue temperature input and 1 binary input. The digital interface is suitable for connecting sensors that have a Modbus RS485 interface. If the connected sensor does not have an integrated temperature sensor, a resistance thermometer Pt100, Pt1000 or NTC/PTC (up to 4 k) can be connected to the analogue temperature input. The power supply for the digital sensor is integrated in the unit.The LCD graphic display allows the input signals to be shown as digits or as a bar graph. The display of the parameters in plain text makes operation easy to understand and safe.With two optional relay change-over contacts, both simple switching or alarm functions and sophisticated control tasks with P, PI, PD and PID behaviour can be realised. On request, the unit can also be supplied with two freely parameterisable and scalable analogue outputs (0 to 10 V, or 0(4) to 20 mA).Special featuresDisplay: mg/l, ppm, % SAT, %, ‰, g/l, ppb, µg/l, NTU, FNU, etc.Special displays are also possible with the setup programmeLarge LCD graphic display with backlightingDisplay representation selectable: large digits, bargraph or trend displayIntegrated calibration routines:depending on the sensor: zero point, full scale and 2-pointCalibration logbookProtection class IP67 for surface mountingProtection class IP65 for control cabinet mountingOperator languages (switchable): German, English, Frenchthrough setup program (option): convenient programming, system documentation, reloading of additional operating languages