They are installed in the discharge line near the pump

Timer-based batch function (dosing timer cycle or week)

DDC 15-4 AR-PV/V/C-F-31I002FG The SMART Digital DDC is a compact positive displacement

2 potential free output relays for max

ddc 15 4 a pv v c f 32i002fg 97721488 They are installed in theDDC 15 4 A PV V C F 32I002FG The SMART Digital DDC is a compact positive displacement, diaphragm dosing pump with variable speed drive (stepper motor) and intelligent control electronics with minimum energy consumption. The SMART Digital Dosing series operates at full stroke length to ensure optimum accuracy, priming and suction, even for high viscosity or degassing liquids. The duration of each discharge stroke varies according to the capacity set,