Electronic Technologies ES2010E, Руководство пользователя

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VIII
．
Charging Battery
：
The battery is a 6V NiMH battery pack. When the instrument power supply
voltage is lower than 5.2V, the battery symbol is displayed, indicating that the battery
power is insufficient. Please charge it in time.
IX
．
Other Explanations and Considerations
1
．
Current clamp specificity
The two current clamps of the meter are dedicated to this meter and cannot be
used for another meter, At the same time the order of the two clamps can not be
interchanged, otherwise the error will increase.Current clamp to prevent the
impact, the jaw plane must be kept clean, completely closed test is reliable.
2. Current clamp maintenance
After the current clamp is used, the dust in the plane of the jaws should be
promptly removed. The plane of the jaws should not be cleaned with rough objects
or corrosion. It is best to use a soft cloth (such as: WD-40 lubrication) to gently
wipe.
3
．
This instrument is used for the detection of secondary loops and low voltage
loops. It cannot be used to measure the current in high voltage lines to prevent
electric shock.
4
．
Three-phase four-wire (the phase when three-phase load is balanced)
：
Phase
relationship
Phase
value
Phase
relationship
Phase
value
Ua-Ub 120
°
Ia-Ib 120
°
Ub-Uc 120
°
Ib-Ic 120
°
Uc-Ua 120
°
Ic-Ia 120
°
5 ． Three-phase three-wire (the phase when three-phase load is balanced) ：
Phase
relationship
Phase
value
Phase
relationship
Phase
value