SM8124A Battery Resistance Voltmeter internal Impedance Meter LCD Rechargeable Battery Impedance int

Features
Model:SM8124
Voltmeter OF INTERNAL BATTERY RESISTANCE
Voltmeter of internal battery resistance is mainly used to measure battery terminal voltage and internal resistance. The internal resistance is measured with the international standard AC signal (1000Hz±10%) by means of four-wire method to ensure the impact of the test probe of the contact resistance of the instrument, the wire and battery output terminal on the measured value, and the battery voltage can also be measured at the same time. It is applicable for measurement of internal resistances of Lithium-ion, nickel-hydroxide,lithium-manganese cells or assembled battery.
Specification
1. a)Voltage measurement range
0~1.999V
2V~19.99V
20V~100.0V
b)Voltage resolution
(0~1.999V)1mV
(2V~19.99V)10mV
(20V~100.9V)100mV
c)measurement accuracy:±(1%+1)
2. a)Internal resistance measurement range
1mΩ~199.9mΩ
200mΩ~1999mΩ
2Ω~19.99Ω
b) Internal resistance resolution
(1mΩ~199.9mΩ)0.1mΩ
(200mΩ~1999mΩ) 1mΩ
(2Ω~19.99Ω) 10mΩ
c)measurement accuracy:±(5%+1)
3.Environment temperature::-10℃~40℃
4. Power:One 9V battery(not included)
5. Display:LCD
6. Low voltage prompt
7.Dimensions:130X72X30mm
Operation instructions
A:Internal battery resistance measurement
1) Open battery door, and put in a 9V battery then close the battery door properly.
2) Turn the power switch to “Ω Inch position, and “1 Inch will be displayed on the screen, put the measurement range to 200mΩ Inch position and put the respective test probe to the positive and negative electrode of the battery, if the reading is “1 Inch, put the measurement range to “2000mΩ Inch position or “20Ω Inch position.
3) The reading of the instrument will display “1 Inch in case of over-range.
4) Turn the switch back to “OFF Inch position to switch off the power after the measurement is completed.
B:Battery voltage measurement
1)Open its battery door, and put in a 9V battery and close the battery door properly.
2)Turn the power switch to “V Inch position, and “0 Inch will be displayed on the screen, select proper position with reference to the tested voltage of the battery to be tested (attention:the position selected shall be larger than the rated voltage so that the instrument will not be damaged), put the respective test probe to the positive and negative electrode of the battery properly.
3)The instrument will not indicate the polarity of the battery but instead the absolute value of the voltage
4)The reading of the instrument will display “1 Inch in case of over-range. Turn the switch to the large position immediately. If you do not know how large the voltage is, turn the switch to “100V/ Inch position; if the measured value is less than 20V, turn the switch to “20V Inch position; if the measured value is less than 2V, turn the switch to “2V Inch position. Avoid over-range measurement as possible in voltage testing as it is hazardous to the instrument.
5)Turn the switch back to “OFF Inch position to switch off the power after the measurement is completed.
Package includes
1 x SM8124A Battery Impedance Meter
1 x English user manual