Top Exit
3. Operational Parameters
–
The Operational Parameters or Duty Cycle for the
operation is set to avoid damage to the internal coil or the Output Module, and must
be observed.
AC Operation:
It is recommended that the operator does not keep the Yoke on for
more than 5 minutes at a time, as the Yoke housing may get to warm to hold.
However, the basic design of any Yoke inherently produces heat.
Typical operation is 5 - 15 seconds on, while applying inspection media, followed by
5 - 15 seconds off repositioning the yoke to the target area.
If the Yoke is used for prolonged periods of time such as 60 to 90 minutes of
continuous cycling, as outline above, the Yoke will get hot. If the WC-6
X
2 is used in
this manner the operator must provide time for a sufficient cooling period, or
components in the Electronic Control Module may fail.
Do not hold the Push Button Switch on when plugging the Yoke into power.
4. Field Characteristics
AC Field –
AC Magnetic Fields are sensitive to surface and near surface defects
due to the ‘Skin Effect’ as the field travels from one Pole Piece to another. The WC-
6
X
2 is designed to produce a very strong AC field, to aid the operator while
inspecting though nonmagnetic coatings, or using extra scrutiny for inspecting
critical components. The Inspection Media (Dry Powder or Wet Method Particles)
has a tendency to migrate toward interruptions (or defects) in the field. The direction
and intensity of an AC Field, by it’s nature, alternates causing high particle mobility,
so defects tend to be revealed immediately.
.
Demagnetization –
Small Parts may be demagnetized by positioning the contact
surfaces of the Pole Pieces together, activating an AC Field and pass the part
through the opening formed between the Legs and Yoke Housing. Larger Work
Pieces can be demagnetized by placing the Yoke on the surface, in a similar
manner used during inspection, activating an AC Field and pull the Yoke off the
WC-6X2 Operation Manual
3
End Cap
(Name
Plate and Fastener
not shown)
Cord Protector/
Strain Relief
Ground Lug
(Not used)
Cross Bar
Junction Tube
Module and
Insulating Tape
Rear Leg
Power Lines
White – Positive
Black - Negative
.
