Using a surge protector (like Yamatake's "SurgeNon") is recommended if the unit is installed in areas prone to lightning strikes. SDC20/21 User Manual Overview | PDF | Power Supply - Scribd
Cycles through the parameter settings within a specific group. Up/Down Arrows: Used to increase or decrease values during configuration. Operation Modes yamatake sdc20 user manual
See Table 4.2 "Parameter List" – it lists every code with its factory default and value range. Using a surge protector (like Yamatake's "SurgeNon") is
