DCIR Testing Machine with 32-bit Dual-core MCU 16-bit ADC and 1 mV/mA Data Resolution for High Power Density Battery Testing

Input parameters for communication

Input power supply

AC 380V±10% 50/60±5Hz

Power factor

≥99% (full load)

THDI

≤5% (full load)

Input impedance

≥1MΩ

Feedback efficiency

≥90% (full load)

DC output parameters

Voltage accuracy

±0.05%FS

Voltage resolution

1mV

Current accuracy

±0.05%FS

Current resolution

1mA

Current response time

10ms(10%FS ~ 90%FS)

Charge-discharge conversion time

20ms(-90%FS ~ 90%FS)

Channel control mode

All channels can be controlled independently.

Auxiliary channel

Each channel is equipped with an auxiliary temperature channel (NTC).

Workstep functional characteristics

Support for experimental testing

Battery pack cycle life test, battery pack capacity test, battery pack charge/discharge characteristic test, battery pack charge/discharge retention capability test, battery pack charge/discharge efficiency test, battery pack charge and over-discharge tolerance test.

Minimum data recording time

10ms

Number of work steps

2000

Number of cycles

65535

Loop nesting

5

Charge-discharge mode

Standing still, pausing, constant current charging CC, constant voltage charging CV, constant resistance charging CR, constant current and constant voltage charging CCCV, constant power charging CP, constant current discharge DC, constant power discharge DP, constant resistance discharge DR, DC internal resistance test (DCIR)

Cut-off condition

Voltage, current, capacity, energy, time, power, number of cycles, BMS parameters, custom advanced parameters (supporting one or more logical AND or combinations)

Execution action type

Jump, pause, protection, next step

Import of 485/DBC files

Support file editing, saving and importing, each channel one 485/CA line

DC internal resistance test (DCIR)

Support DCIR process steps, real-time hardware calculation, support (V1-V2)/(I1-I2) and (V1-V2)/I two types of tests

Data export method

Excel, CSV format export

Protection function

Protection on AC side

Grid voltage over/under voltage protection, surge protection, islanding protection, over/under frequency protection, hardware over-temperature protection, self-detection protection, etc.

Protection on DC side

Bus over/under voltage protection, hardware over-temperature protection, battery channel line reverse connection protection, etc.

Comprehensive protection on battery side

Total battery voltage upper/lower limit protection, single cell battery voltage upper/lower limit protection, battery temperature upper/lower limit protection, battery charge/discharge current upper limit protection, battery capacity upper/lower limit protection, BMS communication disconnection protection, network disconnection protection, etc.

Power loss data protection

With memory power-off protection function, it can effectively avoid data loss caused by power failure or continue running from the broken point after power restoration without modifying the process.

Protection level

IP20

Operating temperature range

0℃-45℃

Cooling method

forced cold air

Noise level

≤80dB