■ Lithium-ion batteries are charged using the Constant Current, Constant Voltage (CCCV) method, which manages both voltage and current.
When charging from a discharged state, charging starts in constant current mode. When the cell voltage reaches 4.2V, it switches to constant voltage charging, restricting current so as not to exceed 4.2V.
Full charge is determined by charging time or the decrease in charging current.
■ Due to the characteristics of lithium, both charging voltage and current in lithium-ion batteries must be managed with high precision.
The PSA Series DC Ammeter features an extremely low input resistance of approx. 40 mΩ (±10A, ±5A, and ±2A types), enabling high-precision measurement.
■ Measuring with an extremely low-loss shunt resistor minimizes voltage drop, making it suitable for current measurement in low-voltage devices as well as charge/discharge evaluation of batteries and cells.
■ For lithium-ion batteries, parameters such as case temperature and strain caused by thermal expansion need to be managed accurately in real time.
The ST Series Strain / Pressure Meter allows selection of excitation voltages (2.5V / 5V / 10V / custom) and bridge resistances (120 Ω / 350 Ω, etc.).
The HT-T Series NTC Thermistor Thermometer utilizes a proprietary B2-constant logarithmic approximation algorithm for high-precision conversion (within ±0.05% rdg @ 0 to 150 °C).
■ Basic Characteristics Measurement: Confirming CC-to-CV transition points (voltage), etc.
■ Data Acquisition for Capacity Calculation: Used for Coulomb counting (current integration), etc.
■ Charging Current: Connect PSA Series DC Ammeter
■ Charging Voltage: Connect PSV Series DC Voltmeter
| View "Understanding Current Measurement" |
■ Cell Surface Temp. Measurement: Verifying protection logic (thermal shutdown), etc.
■ Expansion & Pressure Measurement: Verifying volumetric expansion due to degradation or damage
■ Case Strain / Stress, etc.: Connect ST Series Strain Meter to a 1-axis strain gauge
■ Case Temperature: Connect HT Series Thermocouple Meter to T-type or K-type thermocouples
■ Case Temperature: Connect HT-T Series Thermistor Thermometer to NTC thermistors
■ Smartphones, wireless earphones, wearable devices, hair irons, laptops, etc.
■ Simultaneous output of CAN and 16-bit analog (update rates from 1 ms) is available (Optional)
■ Configuration and data logging available via free COCORESEARCH measurement software LINKSHIP
| Check CAN Data with CAN Converter
[Reference] Convert CAN data into measured values for verification. No CAN analyzer required
|
Shutdown on Anomalies with CAN Comparator
[Reference] Compare and evaluate 15 CH of CAN signals individually for contact output
|
Current Measurement |
Read More > |
■ 16-bit analog output updated at 1 ms, CAN communication (Optional)
Real-time current measurement and feedback control available
Low loss with shunt resistance under 40 mΩ: Ideal for charging current evaluation (±10A, ±5A, ±2A types)
Voltage Measurement |
Read More > |
■ 16-bit analog output updated at 1 ms, CAN communication (Optional)
Real-time voltage measurement and feedback control available
±5V measurement range model also in lineup
Strain Measurement |
Read More > |
■ 16-bit analog output updated at 1 ms, CAN communication (Optional)
Selectable excitation voltage for strain gauges: 2.5V, 5V, 10V, or custom (Specified at order)
Bridge resistance selectable from 120 Ω / 350 Ω
Temperature Measurement |
Read More > |
■ 16-bit analog output updated at 1 ms, CAN communication (Optional)
- Thermistor Thermometer: High conversion accuracy via proprietary B2-constant logarithmic approximation (within ±0.05% rdg @ 0 to 150 °C)
- Thermocouple Meter: Supports thermocouple types K, J, R, E, T, B, N, S via setting switch (-270 °C to +1820 °C)
Budget Models |
Read More > |
■ Low-cost indicator model EXL-24 series
High-precision (16-bit, update rates from 40 ms) analog output (Optional)
Custom Box Mounting |
Read More > |
■ Custom box-mounting available to integrate multiple units such as ammeters, voltmeters, and thermocouple meters in one enclosure.
Freely select measurement combinations, channel count, connectors, etc.
View CustomizationWe support a wide variety of measurements including thermocouples, RTDs, thermistors (temperature), speed, torque, current, voltage, resistance, and CAN data conversion.
View All Products >- CAN Output
- 16-bit Analog (Voltage/Current) Output / Dual Outputs
- USB-C: Configuration & Data Logging
- Alarm Output / RS-485
- Free Setup & Management Software: Report Printing & Data Logging
- Ethernet (LAN) [EX48]
CAN Data Comparator
15 CH Support
CAN-1801
| Read More > |
| View Examples > |
| Flexible Choice of Measurement Types & Channels |
| Available from 1 Unit |
| Convenient, Easy & Low Cost |
| Calibration Available as Embedded Unit |
| Functional Modifications: Power, Output Voltage, Communication Specs, etc. |
| Calibration Certificates & Traceability Charts Available |
| View Application List > |
| Read More > |
| Read More > |
