Jeio tech Lab Companion SK-300 Operating Manual page 13

Power connection
Check the ID Plate on the back side of the machine to find the electric conditions.
1. C heck i f t he pl ug condi t i on and el ect r i c w i r es ar e nor m al .
2. Check the connection of ground wire.
Check the power plug to find if the
electric conditions are correct. The
voltage fluctuation should be within 10%
Do not connect the power before checking
how to do correct operation.
Page 13