Frequency Converter with Trip Values KFU8-UFC-1.D, Signal type, K-System, 1-channel signal conditioner, Universal usage at different power supplies, Input for 2- or 3-wire sensors, NAMUR sensors or dry contacts, Input frequency 1 mHz ... 10 kHz, Current output 0/4 mA ... 20 mA, Relay contact and transistor output, Start-up override