Gefran 1200 controllers are built with SMT technology. The instrument provides a complete operator interface, protected by a Lexan® membrane that ensures level IP65 faceplate protection. Controllers have 4 keys, double 4-digit green LED display, 4 red signal LEDs for the 4 relay/logic outputs, and 3 additional LEDs with programmable function to signal the controller's various function states. The instrument’s main input for the variable is universally controlled, and allows connection of a wide variety of signals:
Gefran’s Universal input provides the possibility to connect many types of sensors:
Thermocouple Calibrations are type J, K, R, S, T, B, E, N.
A 2nd auxiliary analog input from current transformer is possible. You can select one of the two pre-settable set-points, select Manual-Automatic mode, reset the alarm memory, or enable the hold function by means of the digital input. This Gefran controller provides up to 4 outputs: relay (5A, 250VAC/30VDC cosφ = 1) or logic (24V ± 10% (10Vmin a 20mA)). An analog output in voltage, or in current, is also possible. Functions of each output are freely configurable from the faceplate.
Sensor configuration is preformed from faceplate interface, of which, no external shunts or adapters are required. Programming procedures are facilitated by grouping parameters in function blocks (CFG for the control parameters, INP for the inputs, OUT for the outputs) Furthermore, the possibility of selecting a simplified menu for entering the most frequently used parameters is also available. Consequently, a programming kit for PC is also available to facilitate the configuration a step further.