ESAB DTG 405 Service Manual page 78

7.1.4 SWITCH PULSE WELDING/NORMAL WELDING (24)
Fast pulse
The arc pulses between the two current values set using the potentiometer I2 (upper value) (27)
and the potentiometer I4 (lower value) (11).
The time for I2 can be set using the potentiometer pulse time I2 (26), the time for I4 is set using
the potentiometer pulse time (29).
Without activating the gas test button (15), the welding current I4 cannot be set.
The range of times which can be set using this switch, is from 0.002 to 0.1s, corresponding to a
frequency range of 250 to 5 Hz.
Normal pulse
The arc pulses between the two current values set by the potentiometer I2 (upper value) (27) and
the potentiometer I4 (lower value) (11).
The time for I2 can be set using the potentiometer pulse time I2 (26), the time for I4 is set using
the potentiometer pulse time (29).
Without activating the gas test button (15), the welding current I4 cannot be set.
The range of times which can be set using this switch is from 0.02 to 0.1s, corresponding to a
frequency range of 25 to 5 Hz.
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