ESAB ESP-150 Instruction Manual page 52

SecTION 5
6. Release torch switch.
a. MC opens and the cutting arc shuts off.
b. Gases continue to flow (postflow) for approximately another 10 seconds at which time the PGSV and CGSV
will close, opening PCPS and CGPS.
NOTE: A new cutting cycle can be started anytime during the postflow. As soon as the torch switch is depressed, the
remaining postflow time will cancel and the normal preflow time will start.
7. Control circuit will not energize or can deenergize during a cutting cycle when:
a. PGPS or CGPS is open due to insufficient gas pressure (at least 15 psi required).
b. Thermal Switches (TS) are open due to overheating of unit. TS should open at 180° C
(356° F).
8. Place ROS to "OFF" position.
a. Control circuit deenergizes.
b. Fan motor (FM) deenergizes.
c. Low Gas light on status board will go out.
9. Open primary disconnect switch.
a. Input power unit shut off.
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