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(2) if the two units(A and B machine) measure in a short distance (less
than 300m apart), the wireless signals of the two transmitters will
interfere with each other, which may invalidate the measurement results
。
Result judgment and analysis
The results are judged by the national standard A standard, the same
phase is bounded by 30 °. When the phase difference is ≥ ± 30 °, it is out
of phase. The voice prompt "out of phase", the screen displays "out of
phase", and the out of phase indicator is on. The phase difference <± 30 °
is the same phase, the voice prompts "in phase", the screen displays "in
phase", and the phase indicator is on. All phase difference results refer to
X, and the degree is the phase in which Y is ahead of X.
Tip: When the frequencies of the two lines are not the same, you
need to use a quasi-synchronous parallel device to control the frequency
phase of the generator so that the phase and frequency of the generator
are consistent with the main network before the grid-connected power
transmission. See Appendix B for Quasi-Synchronous and
Self-Synchronous Operations
。
Maintenance
1. When not in use for a long time, please fully charge before storing.
2. This product should not be stored in a humid, hot, and dusty
