... 1. Five operate mode is optional: counter, frequency meter, timer, displacement meter, batch counter.;2. 1~2 preset(s ... level, CoderInput channel1~2 input channel(s)Operation methodCount-up, Count-down, Displacement meter, Batch counter, AccumulationOutput modeN, F, R, ... contact : 250V / 3A (resistance)PNP open collector 12~24 VDC / 20mASensor power supply24 VDCInstrument power supplyUniversal 85~265VAC ...