隔离线性化热电偶输入5B47

　　The 5B47 is a single-channel signal conditioning module that interfaces， amplifies and filters J， K， T， E， R， S， and B-type thermocouple. The module provides an isolated and protected precision output of 0 to + 5 V. The 5B47 internally linearizes its input signal to provide an output that is linear with temperature. Accuracy for each type of sensor is specified in the 5B47 model table. （See Model 5B37 for non-linearized conditioning of thermocouple signals.） Accurate and System-Ready - Internal cold-junction compensation largely corrects errors arising from parasitic thermocouples formed by thermocouple connection to the input screw terminals， providing an accuracy of +0.25o C @ +25o C ambient temperature. The module generates a predictable upscale signal to indicate an open thermocouple; for a downscale response， connect a 20MΩ， 0.25W resistor across screw terminals 1 and 3.