MEWOI MEWOI2600, Руководство пользователя, Страница: 14 / 17

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and the host will voice prompt "X signal normal", "Y signal
normal".
Under phase detection mode, close the X detector to or contact
any phase line, and then close the Y detector to or contact the
other phase lines. High voltage phase detection, without direct
contact with the high-voltage wire, close the hook detector to
the wire gradually, when the electric field is induced the
detector will sound "beep, beep, beep" and the lights flashing,
complete electrical inspection function. Low voltage phase
detection (400V and below), especially for phase detection of
low voltage of distribution box, change metal hook detector into
metal probe.
Non-contact phase detection, If the lines are relatively close to
each other, should test the position of the wire where is far
away from the other wires
Phase detection use X detector as a benchmark, fixed display
A, If the phase difference of the two detector is in the range of
-25
°～
25
°
(335
°～
360 which is-25
°～
0
°
), Y detector test
result is A, Qualitatively in-phase; If the phase difference of the
two detector is in the range of 95
° ～
145
°
or 215
° ～
265
°
,Qualitatively Out of phase. At the same time, the host
voice prompts "in-phase" or "out of phase".
When the phase difference is between 95
°～
145
°
, the Y
detector result is B phase, that is positive sequence; if the
phase angle difference is between 215
°～
265
°
, Y detector
detection result is C phase, that is the inverse phase sequence.