Magnaflux CD-2000 Series, Руководство по эксплуатации, Страница: 17 / 36

CD-2000 Series Revised January 2020
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MAGNETIZING PROCEDURES
All controls and indicators are illustrated in Figures 2-9.
1. Clamp the part as described in PIECE PART SET UP.
WARNING: Set current at the appropriate level for the part cross section to avoid overheating.
2. Set the desired current for part being inspected on the appropriate CURRENT CONTROL. Tighten
lock(s).
3. Apply fluid or powder to the part.
4. As soon as the part (or part section) is thoroughly covered with fluid (powder), immediately apply
magnetizing current by depressing and releasing the MAG push-button or remote mag button.
5. The current assurance will light and remain lit for durati
on of magnetizing “shot.”
6. The digital ammeter will display and retain applied current.
NOTE:
This technique is called the “wet continuous method.” For long parts, it may be necessary to
inspect in sections, each with a separate bath application and current “shot.” The “wet
residual method,” which applies bath after the current shot, is recommended only for parts with
high magnetic retentivity.
7. Examine part for indications.
DEMAGNETIZATION
All controls and indicators are illustrated in Figures 2-9.
Demagnetization is generally performed after inspection. A safety feature prevents accidental energizing of
the magnetizing circuit during the demagnetization cycle.
1. Connect cables and place part in same manner as described in PIECE PART SET UP.
2. Set the CURRENT CONTROL to the same or a value slightly higher than the setting used to magnetize
the part. Tighten lock.
3. Press and release DEMAG push-button to start demagnetization cycle. DEMAG light will remain lit
during complete cycle.
4. After demagnetization of part is complete, DEMAG light will go out.