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Detect contamination that could cause defects. Improve battery cell productivity through high-speed testing. The BT5525 can prevent the shipment of batteries with latent defects that could lead to fires. The BDD function, which monitors minute voltages and currents and detects foreign substances mixed in the production process, and a convenient PC application that allows you to view waveforms, will be explained while actually measuring!
Detect contamination that could cause defects. Improve battery cell productivity through high-speed testing. The BT5525 can prevent the shipment of batteries with latent defects that could lead to fires. The BDD function, which monitors minute voltages and currents and detects foreign substances mixed in the production process, and a convenient PC application that allows you to view waveforms, will be explained while actually measuring!
Features
Detect contamination that could cause defects. Improve battery cell productivity through high-speed testing
To assure battery quality over the long term, it’s necessary to detect the causes of latent defects in testing processes on production lines. Minuscule insulation defects can eventually degrade battery service life and cause fires. The principal causes of insulation defects are contamination (with metallic matter) and minuscule scratches occurring in production processes.
Detecting minuscule insulation defects caused by contamination
The BDD function is a proprietary testing function that can detect minuscule internal short-circuits caused by contamination (with metallic matter) at the stage before battery cells are filled with electrolyte. By identifying and eliminating defective parts at an early stage in the production process, the BDD function helps prevent the risk of hazards such as fires and accidents caused by heating after battery shipment. Eliminating latent accident causes such as these facilitates the production of batteries that resist degradation and function economically.
Stable insulation resistance testing, even in noisy environments
Hioki succeeded in significantly reducing the effects of external noise by drawing on insulation resistance tester measurement technology and design expertise cultivated over many years. As a result, the BT5525 can perform stable, variation-free insulation resistance testing at a level of quality that lets it detect internal short-circuits caused by contamination.
Preventing testing do-overs due to erroneous judgments
The BT5525 provides a contact check function to determine whether the instrument has made proper contact with the circuit under test by measuring the capacitance between the measurement terminals (stray capacitance and the capacitance of the circuit under test).
Ideal for insulation resistance testing before battery electrolyte filling
The BT5525 tests insulation between electrodes before cells are filled with electrolyte. The tester's maximum test voltage is 500 V. It can also perform insulation testing between module/pack electrodes and the enclosure.
Applications
| Output Specifications | Output voltage: 25 to 500 V Setting resolution: 1 V Charging current (current limit function): 50 μA to 50 mA*123 Minimum setting resolution: 10 μA Short-circuit current: 60 mA or less Discharge current: 40 mA or greater 1*: Constraints involving the output generator will result in an error, making measurement impossible, if a capacitive load of approximately 50 μF or greater is connected while using a current limit setting of 5.1 mA or greater. 2*: When using a current limit setting of 5.1 mA or greater, measurement will be forcibly stopped if the output voltage is not at least 20 V at 200 ms after the start of measurement. Measurement will be possible 1 s after forcibly stopped. 3*: If the set current limit value is from 5.1 mA to 50.0 mA, the current will be limited to 5 mA after the output voltage reaches the set voltage. |
| Measurement Specifications | Resistance value display range: 0.050 to 9999 MΩ Resistance range: 2 MΩ, 20 MΩ, 200 MΩ, 2000 MΩ, AUTO |
| Basic Specifications | ±1.5％ rdg.±2 dgt. 25 V ≤ V < 100 V [0.05 to 2 MΩ], 100 V ≤ V ≤ 500 V [0.2 to 20 MΩ] |
| Time Specifications | Test time: 0.050 to 999.999 s, OFF Comparator delay time: 0.001 to 999.999 s, AUTO Display update speed: 1 PLC Sampling time: 1 to 100 PLC |
| Memory Functions | Panel save function: Saves up to 15 sets of measurement conditions Measured value memory function: Saves up to 999 measured values in the instrument's internal memory |
| Judgment Functions | Test modes: Continuous test, PASS STOP, FAIL STOP Comparator function: UPPER_FAIL: Measured value > upper limit value PASS: Upper limit value ≥ measured value ≥ lower limit value LOWER_FAIL: Measured value < lower limit value |
| Various Functions | Break Down Detect function (BDD): Detecting minuscule insulation defects caused by contamination Contact check function: 2-terminal capacitance measurement method Automatic data output function: Automatic output of measurement results via communication interface after completion of test Command monitor function: Screen display of commands being sent and received External I/O monitor function: Screen display of output signal ON/OFF and input signal status Analog output function: Converts measured values to 0 to 4 V DC and outputs |
| Interfaces | USB, LAN, RS-232C, EXT. I/O |
| Power Supply | 100 V to 240 V AC |
| Power Consumption | Approximately 20 VA*4 *4: Power supply conditions are 220 V supply voltage, 50, 60 Hz supply frequency, 200 V test voltage, 2 mA current limit, and load (1 GΩ resistor and 0.1 μF capacitor connected in parallel). |
| Maximum Rated Power | 100 VA |
| Dimensions | Approximately 8.46 x 3.15 x 12.07" (215 x 80 x 306.5 mm), excluding protruding parts |
| Weight | 98.8 oz (2.8 kg) approximately |
| Output Specifications | Output voltage: 25 to 500 V Setting resolution: 1 V Charging current (current limit function): 50 μA to 50 mA*123 Minimum setting resolution: 10 μA Short-circuit current: 60 mA or less Discharge current: 40 mA or greater 1*: Constraints involving the output generator will result in an error, making measurement impossible, if a capacitive load of approximately 50 μF or greater is connected while using a current limit setting of 5.1 mA or greater. 2*: When using a current limit setting of 5.1 mA or greater, measurement will be forcibly stopped if the output voltage is not at least 20 V at 200 ms after the start of measurement. Measurement will be possible 1 s after forcibly stopped. 3*: If the set current limit value is from 5.1 mA to 50.0 mA, the current will be limited to 5 mA after the output voltage reaches the set voltage. |
| Measurement Specifications | Resistance value display range: 0.050 to 9999 MΩ Resistance range: 2 MΩ, 20 MΩ, 200 MΩ, 2000 MΩ, AUTO |
| Basic Specifications | ±1.5％ rdg.±2 dgt. 25 V ≤ V < 100 V [0.05 to 2 MΩ], 100 V ≤ V ≤ 500 V [0.2 to 20 MΩ] |
| Time Specifications | Test time: 0.050 to 999.999 s, OFF Comparator delay time: 0.001 to 999.999 s, AUTO Display update speed: 1 PLC Sampling time: 1 to 100 PLC |
| Memory Functions | Panel save function: Saves up to 15 sets of measurement conditions Measured value memory function: Saves up to 999 measured values in the instrument's internal memory |
| Judgment Functions | Test modes: Continuous test, PASS STOP, FAIL STOP Comparator function: UPPER_FAIL: Measured value > upper limit value PASS: Upper limit value ≥ measured value ≥ lower limit value LOWER_FAIL: Measured value < lower limit value |
| Various Functions | Break Down Detect function (BDD): Detecting minuscule insulation defects caused by contamination Contact check function: 2-terminal capacitance measurement method Automatic data output function: Automatic output of measurement results via communication interface after completion of test Command monitor function: Screen display of commands being sent and received External I/O monitor function: Screen display of output signal ON/OFF and input signal status Analog output function: Converts measured values to 0 to 4 V DC and outputs |
| Interfaces | USB, LAN, RS-232C, EXT. I/O |
| Power Supply | 100 V to 240 V AC |
| Power Consumption | Approximately 20 VA*4 *4: Power supply conditions are 220 V supply voltage, 50, 60 Hz supply frequency, 200 V test voltage, 2 mA current limit, and load (1 GΩ resistor and 0.1 μF capacitor connected in parallel). |
| Maximum Rated Power | 100 VA |
| Dimensions | Approximately 8.46 x 3.15 x 12.07" (215 x 80 x 306.5 mm), excluding protruding parts |
| Weight | 98.8 oz (2.8 kg) approximately |
