Table 4. graphical symbols used in this manual – Arc Machines 307 User Manual
Page 28

Arc Machines, Inc. Model 307 Orbital Tube Welder Training
Document No. 740096 Chapter 3. Page 12
Rev. A
32
Stop of Action
To Signify the Stop (of
Action) Function or Con-
trol
ANSI/NEMA
33
Start
To Signify the Start (of
Action) Function or Con-
trol
ANSI/NEMA
34
Process Cycle
To Signify One Complete
Process Cycle
(Weld Sequence)
ANSI/NEMA
35
Weld Current
To Signify Welding Amps
During Process Cycle
ANSI/NEMA
36
Arc Volts
To Signify Arc Volts Dur-
ing Process Cycle
ANSI/NEMA
37
Pulse
Signifies Pulse Function
or Control
ANSI/NEMA
38
Sequence
Advance
To Signify Advancing to
the Next Sequence Event
(Level)
ANSI/NEMA
39
Sequence
Deadvance
To Signify Returning to
the Previous Sequence
Event (Level)
ANSI/NEMA
40
Air (Gas) Pres-
sure
To Signify Air (or Gas)
Pressure Function or Con-
trol
ANSI/NEMA
41
Purge by Gas
To Signify Purging of Air
(by Gas)
ISO
7000-0474
42
Gas Preflow
To Signify Gas Preflow
Time (PREPURGE)
ISO 7000-0474
ANSI/NEMA
Table 4. Graphical Symbols used in this Manual