Tweco 100 Ultra-Cut - Manual (Page 70)

OPERATION 4-4 Manual No. 0-4748
ULTRA-CUT 100
Gas Control Module: Controls & Indicators
1. MODE Selection Switch
MODE
RUN
SET PREFLOW
SET PLASMA
& SHIELD
TEST
PREFLOW
H 2 O
MIST
PLASMA SHIELD
PRESSURE
PLASMA
POWER SUPPLY
GAS
FLOW
High Precision
Plasma Cutting System
ENABLE
DISABLE
GAS MODE
RUN
SET PREFLOW
SET PLASMA & SHIELD TEST
O2 - AIR
O2 - O2
H35 -N 2
F5 - N 2
AIR - AIR
N 2 - H 2 O
N 2 - N 2
Art # A-04765
9 9
GCM
2010
• Normally in the RUN position during torch operation.
• In the SET PREFLOW position, Preflow or Piloting gas (Air or N
2
) flows to the torch allowing the operator to
adjust pressure. Gas automatically shuts off after 2 minutes if left in the SET PREFLOW position.
• In the SET PLASMA & SHIELD position, selected cutting gases, Plasma & Shield, flow to the torch to allow
operator to set the pressure (regulator & gauge) and flow (knob at top of flowmeter). Gases automatically shut
off after 2 minutes if left in the SET PLASMA & SHIELD position. GCM 2010 gas control revision AG or later
includes inlet pressure sensors. In SET PLASMA & SHIELD position the LCD display shows alternately the
plasma an shield inlet pressure. If either gas pressure is outside the acceptable range, the display shows “PSI
low (or high), the actual pressure and the limit it is below (or above).
• In the TEST position , selected cutting gasses, Plasma & Shield, also flow to the torch. The Plasma outlet
pressure (pressure going to the torch), is displayed.
• For GCM 2010 gas control revision AG or later the Mode Selection Switch includes a hidden function used at
initial setup to configure the gas control for the gas lead length. See Sequence of Operation, initial setup.