Tweco 150XL CE PAK Master Without Latch Circuit - Manual (Page 34)

OPERATION 4-8 Manual 0-2727
A-02288
Logic PC Board
SW3
1 2
Figure 4-8 Gas Pre-Flow Delay Switch SW3
Location
Select the proper gas pre-flow time for the total torch lead
length as shown in the following chart:
Gas Pre-Flow Delay Function
Pre-Flow
(Seconds)
Total Torch
Lead Length
SW3-1 SW3-2
2 *
0 - 60 ft
(0 - 18.3 m)
1 (ON) 1 (ON)
3.4
61 - 85 ft
(18.6 - 25.9 m)
1 (ON) 0 (OFF)
4
86 - 125 ft
(26.2 - 38.1 m)
0 (OFF) 0 (OFF)
* = Factory Setting