First, find and remove the fixing screws of the rear cover. As shown by the red circle in the figure:
Secondly, remove the back cover with a screwdriver or nail.
Third, take out the battery,
Fourth, replace the multimeter battery with a new one.
5. Replace the back cover, lock the screws and complete all the work.
Multimeter, also known as multimeter, multimeter, three meters, multimeter, etc. , is an indispensable measuring instrument for power electronics and other departments. Its main purpose is to measure voltage, current and resistance.
Basic functions:
1, the multimeter can measure not only the resistance of the measured object, but also the AC and DC voltages. Common multimeters include pointer multimeter and digital multimeters. Pointer multimeter is a multifunctional measuring instrument with the meter head as the core component, and the measured value is read by the pointer on the meter head. The measured value of digital multimeter is displayed directly in digital form through LCD screen, which is convenient for reading, and some of them also have voice prompt function. Multimeter is an ordinary instrument that integrates voltmeter, ammeter and ohmmeter.
2. The DC range of the multimeter is a multi-range DC voltmeter. Parallel closed-circuit voltage divider can expand the voltage range of the instrument. The DC voltage range of multimeter is multi-range DC voltmeter. Series voltage divider resistors can expand the voltage range of the instrument. Different voltage dividing resistors have different corresponding ranges. The meter head of the multimeter is a magnetoelectric measuring mechanism, which can only change alternating current into DC through DC, so as to realize the measurement of alternating current.