Turn power supply on and adjust voltage/current, Adjust preflow gases – Hypertherm HT2000-200 Volt User Manual
Page 105
6-10
HySpeed HT2000
Instruction Manual
OPERATION
24
• When using
oxygen, nitrogen, or argon-hydrogen
as the
plasma gas
,
adjust supply regulator to read
120 psi +/- 10 psi (8.2 bar +/- 0.7 bar)
.
When using
air
as the
plasma gas
, adjust supply regulator to read
90 psi
+/- 10 psi (6.2 bar +/- 0.7 bar
).
• Adjust supply regulator for
shield gas
to read
90 psi +/- 10 psi (6.2 bar
+/- 0.7 bar)
.
Turn Power Supply On and Adjust Voltage/Current
7. Turn main disconnect switch ON. See
Status Indicators Before Startup
earlier in this section.
8. Turn on the power supply by depressing the
POWER ON (1)
button
(
PB1
) on the HT2000 power supply. Ensure that the green
POWER ON
indicator illuminates. Hold PB1 down until all of the status indicators
extinguish. If the
POWER ON
light fails to come on, see
Section 4
:
Installation for proper setup.
9. Set the
VOLTAGE
and
CURRENT
on the DR V/C module. Select the
arc current and arc voltage from the
Cut Charts
in this section for the
type and thickness of metal to be test cut.
Adjust Preflow Gases
10. Set
S2
on the gas console to
Test Preflow.
Verify that the plasma gas
pressure gauges (
PG1, PG2
) on the gas console both read 120 psi
(8.2 bar).
11. Look at the oxygen (
FM2
) and/or nitrogen-air (
FM1
) flowmeters on the
gas console and set the
Preflow
plasma gas flow rate % by referring to
the
Cut Charts
and turning the oxygen (
MV3
) and/or nitrogen- air (
MV2
)
preflow flowmeter adjust knobs.
12. Look at the shield gas pressure gauge (
PG3
) on the gas console, and
set to the
Cut Chart
specifications by turning the shield gas adjust knob
(
MV4
).
Note: If you have changed consumable parts or if the power
supply has been off for more than one hour, purge gas
lines by leaving system in
Test Preflow
for one minute.
PLASMA
N
2
/Air
O
2
SHIELD
N
2
/Air
psi
psi
psi
DC
N
2
/Air
O
2
O
2
PLASMA
Cut Flow
PreFlow
PreFlow
Run
10
9
8
7
6
5
4
3
2
1
0
10
9
8
7
6
5
4
3
2
1
0
Test
Preflow
Test
Cutflow
PB1
FM1
FM2
MV2
MV3
MV4
S2
VOLTAGE
CURRENT
PG1
PG3
PG2