3 optical isolation switch inputs, 3 switch inputs (built-in 3 relays) output control High precision A/D conversion with readability of 1/30000 5-point non-linear correction Changing the meter does not require recalibration, just input the parameters of the original instrument to use it Integrating functions such as addition/subtraction scales, sorting scales, upper and lower limit alarms, and peak holding Quantitative value, lead time, upper and lower limits, node delay and other parameters can be freely set according to the application In addition/subtraction scale mode, 1-2 ingredients can be selected, and in sorting scale mode, external control/self check/free upper and lower limit modes can be selected