Hypertherm HT4400 HySpeed Plasma Arc Cutting System - Manual (Page 69)

OPERATION
4-10 HT4400 Instruction Manual
(under lever)
4. Adjust Cutflow and Preflow Gases
1. Set the Valve Select thumb-wheel switch (S2) to MV1.
2. Turn the MV1 valve to the plasma pressure detailed in the Cut Charts. The pressure reading appears
in the gas console PG1 Plasma window.
3. Set the Valve Select thumb-wheel switch (S2) to MV2.
4. Turn the MV2 valve to the plasma pressure detailed in the Cut Charts. The pressure reading appears
in the gas console PG1 Plasma window.
5. Repeat this procedure to set metering valves M3-M7. Note that the readings for shield gas
adjustments appear in gas console PG2 Shield window.
MV1
(Plasma cutflow)
MV3
(Shield cutflow)
MV3
(Shield preflow)
MV7
(Shield preflow)
MV5
(Plasma preflow)
Valve Select
S2
MV2
(Plasma preflow)
MV6
(Shield cutflow)
PG1 PG2
2