In the PF3W711, when hysteresis H_1 is set to 5 L/min, the P_1 setting starts from 12 L/min. The initial hysteresis H_1 setting of the PF3W711 when purchased is set to 5 L/min. If the hysteresis is changed to 5 or less, P_1 can be reduced to 12 L/min or less. Since the set flow rate range of the PF3W711 is 7 to 140 L/min,
if hysteresis H_1 is set to 0, P_1 can be set to 7 L/min for example. However, chattering may occur at around
∗The hysteresis H_1 value when shipped may change depending on the part number (flow range).