Miller Syncrowave 250 DX, Owner'S Manual

Page: 32 / 82

OM-363 Page 26
SECTION 4 − OPERATION
217 264-A / 213 106-A
Top row of lights in upper left corner are
On for SMAW. Bottom row are On for
GTAW.
Green on nameplate indicates a TIG function,
Gray indicates a Stick function.
1
Process Control
See Section 4-3.
2
Amperage Control
See Section 4-4.
3
Output Control
See Section 4-5.
4
Start Mode Control
See Section 4-9.
5
Voltmeter And Ammeter
Voltmeter displays average voltage (to the
nearest 0.1 V) at the weld output terminals.
Use meter to preset amperage. Meter dis-
plays average weld amperage output of unit
to nearest ampere when welding.
NOTE: Meters are self-calibrating. No adjust-
ment available.
6
Amperage Adjustment
Control
Use control to adjust amperage, and preset
amperage on ammeter. This control may be
adjusted while welding.
For remote amperage control , front panel
control setting is the maximum amperage
available. For example: If front panel control
is set to 200 amps, the range of the remote
amperage control is 3 to 200 amps for 250 DX
models, and 3 to 200 amps for 350 LX
models.
For pulse welding , use Amperage Adjust
control to select from 3-300 amps of peak am-
perage for 250 DX models, or 3 − 400 amps of
peak amperage for 350 LX models (see Sec-
tion 4-12).
For spot welding , use Amperage Adjust
control to select from 3-310 amps for 250 DX
models, or 3 − 400 amps for 350 LX models
(see Section 4-16).
7
Output Selector Switch
See Section 4-2.
8 Power Switch
Use switch to turn unit Off and On.
9
Postflow Time Control
Use control to set length of time (0 − 50 sec-
onds) gas flows after welding stops. It is im-
portant to set enough time to allow gas to flow
until after the tungsten and weld puddle has
cooled down.
Application:
Postflow is required to cool the tungsten and
weld, and to prevent contamination of tung-
sten and weld. Increase postflow time if tung-
sten or weld are dark in appearance (approxi-
mately 1 second per 10 ampere of welding
current).
10 Balance/DIG Control
See Section 4-10.
11 Pulser Controls (Optional on 250 DX
model)
See Section 4-12.
12 Sequence Controls (Optional)
See Section 4-13.
4-1. Controls (350 LX Nameplates Shown)
A. For 200/230/460 Volts And Non CE Units
8
7
1 2 3
4 5
6
9
10
12
11