Item	Specifications
Fundamental		Welding set data channel	15 or 31
		Number of squeezing channel	2
		Number of pulsation	3
		Welding process step	4 or 8
Time control		Heat 1~3 time	0 - 99 cycles
		Other time	0(2) - 99 cycles
		Pulsation	2 - 99 times
		Current slope	0 - 98 cycles for up or down
Current control		Welding current	2.0 - 50.OkA
		Voltage compensation control	Constant current compensation
		Current detector coil	WMC-451N
Additional function	External input / output	Heat-on output	Solid-state circuit (Alternately switched)
		Pulsation-on output
		Weld input	Equipped
		Welding step timing output	One make-contact
		Outside squeezing mode input	Equipped
		Squeezing pressure control output	0.00 - 999kN (for 15ch or 31ch)
		No work input	Equipped
	Counter	Spot counter	0 - 99 (for 15ch or 31ch)
		Work counter	0 - 9999 (for 15ch or 31ch)
		Total spot counter	0 - 99999 (for 15ch or 31ch)
		Step-up counter	0 - 9999 (for 3SVch)
	Monitors	memory error                               SCR short-circuited Up./low. limit current error           Current checker Full heat check                             Contact checker Cooling water error                      Welding power discontinuation Up./low. limit firing angle monitor  Fused electrode detect/No work                (Error memory capacity : 10 points)
Data store		Data backup	with flash memory
Environmental condition		Operation temperature	0~45°C
		Storing temperature	-10~60°C
		Allowable humidity	45~85%(without condensation)
Power supply		Control power	100V AC+10%/-15%, 50/60Hz, 30VA
		Welding power	220V/440V AC+10%/-20%, 50/60Hz
Dimensions		Vertical type CK4-8-15	W90 x H300 x D325
		Lateral type CK4-8-15P	W300 x H90 x D325
Weight		Vertical type / Lateral type	5 kg