Charging Precautions
1. The instrument can be powered by both AC and DC, but when the on-site power supply has significant interference or is unstable, battery power is recommended.
2. When using the rechargeable battery for the first time, it needs to be charged for more than 6 hours. Otherwise, the instrument cannot work properly.
3. The charging circuit uses a dedicated intelligent charging management module, which can automatically stop charging.
Note: The AC input voltage range of the charging adapter is 220V±15%, to avoid unnecessary losses caused by connecting to the wrong power source.
4. Insert the DC end of the charging adapter into the instrument's power jack ⑨, and connect the other end to AC power. The charging indicator (red) lights up, and fast charging begins.
5. When the battery is nearly fully charged, the charging indicator (green) lights up, switching to slow charging. After a period of time (1-2) hours, the plug can be removed to stop charging and start using the instrument.
Note: When the instrument is not in use, ensure that the band switch is in the off position to prevent the battery from being drained prematurely.
The speed of the hand-cranked megohmmeter should be maintained at 120r/min.
