Device name: battery internal resistance tester

Model: BK - 300A

Main performance and technical parameters:

Equipment performance

Test type ac internal resistance test

Test method: four-wire measurement

Ac current frequency 1KHZ±0.1KHZ

The voltage is measured in two levels

Dc 0 ~ 5.000v, resolution 1 mV, accuracy ±(0.2% RDG +5dgt).

Dc 5.00v ~ 20.00v, resolution 10mV, accuracy ±(0.2% RDG +5dgt)

There are two levels of internal resistance measurement

Low range: 3 m Ω ~ 300.0 m Ω test current 10 ma, + 0.3% RDG + 5 DGT.

Ω high range: 300 m ~ 3000 m Ω test current 1 ma plus or minus 0.3% RDG + 5 DGT.

Internal resistance calibration potentiometer calibration (standard resistance box shall be purchased separately)

The test alarm can be set with unqualified internal resistance alarm or qualified alarm

Fixture type air plug, can connect fixture box or test line

The machine parameters

Working power supply AC220V, 50HZ, power consumption ≤20W

External dimension (width × depth × height) 340×380×110 mm

Ambient temperature: 20℃±5, relative humidity ≤85%3