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energy meter error value each phase voltage, current, power and other data detailed in the
calibration records in this interface).
3. Press [Exit] key to return to the data query interface
Note: if the calibration task you want to find can't be found on the current interface,
search by turning pages through [← →] key.
Ⅴ
. Frequently Asked Questions
1. Question: press down the power on/off key, but the instrument has not been open, why?
Answer: if the voltage terminal has no voltage input or no power adapter is used, the battery may
be out of electricity. In case that the terminal voltage has input voltage (57.7V – 265V), the
instrument may be fail if it cannot be switched on/off
2. Question: the instrument is suddenly abnormal at work, but the keys operation is also invalid,
why?
Answer: there may be large interference, leading to the chip stopping; the power supply can be
shut off to restart, and in general, this problem can be solved;
3. Question: when the calibration error found is very large, if it is a relatively stable value, why?
Answer: (1) first of all, check whether the settings are correct, because it is often easy to mistake
in the following
a) The present current is greater than 1A, and it is set to 1A current shift;
