Dunham & Morrow DML2000 Посібник користувача - Сторінка 9
Переглянути онлайн або завантажити pdf Посібник користувача для Вимірювальні прилади Dunham & Morrow DML2000. Dunham & Morrow DML2000 13 сторінок. Magnetic locator
Друкувати сторінкуis near or under the fence, there will be a dramatic increase in the instrument's frequency as
you approach the target, and you will have no difficulty distinguishing your target from the
fence.
Figure 6: Horizontal Pipe
As illustrated in Figure 6, the peaking of the DML2000-XR output frequency normally indicates
that you are over the end of a pipe section, which can be either a weld or a "Bell" joint. When
searching for horizontal gas and water lines, look for a polarity change on the digital panel
meter.** A polarity change that occurs when the output frequency is low means you are
nominally over the midpoint of the pipe section. A polarity change when the output frequency is
high typically indicates a pipe joint or weld.
** DML2000-XRM (Applies to metered units only)
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