1009080706050403020100 10 20 30 40 50 60 70 80 90 100tOff N.O. Off N.O.On N.O.On N.C. On N.C.Off N.C.1009080706050403020100 10 20 30 40 50 60 70 80 90 100tOff N.O. Off N.O.On N.O.On N.C. On N.C.Off N.C.1009080706050403020100 10 20 30 40 50 60 70 80 90 100tOff OffOff 1 12 2 OnOn On1009080706050403020100 10 20 30 40 50 60 70 80 90 100tOff OffOff 1 12 2 OnOn On28graphic depiction of relay action Setpointgraphic depiction of relay action WindowRelay unitsRelay unitsSetpoint = 50Hysteresis = 10Hysteresis = 10Setpoint = 50relay action: Increasing relay action: DecreasingRelay unitsSetpoint High = 60Hysteresis = 5Hysteresis = 5Setpoint Low = 40relay function: Window (shown for increasing signal)Contact: Closed inside window =Contact: Open inside window =Relay unitsSetpoint High = 60Hysteresis = 5Hysteresis = 5Setpoint Low = 40relay function: Window (shown for decreasing signal)Contact: Closed inside window =Contact: Open inside window =1212