N62400 series User Manual low voltage high current programmable dc electronic load
N62400 series User Manual low voltage high current programmable dc electronic load
The N62400 series DC electronic load, produced by Hunan Next Generation Instrumental T&C Tech. Co., Ltd. (NGI), is designed for high accuracy and reliability in various industries such as battery, power supply, and new energy vehicles. This manual provides comprehensive information on installation, operation, and specifications.
Users must follow safety instructions to ensure proper operation and maintain the instrument's protective functions. Important safety notes include verifying AC input voltage, ensuring reliable grounding, and avoiding operation under hazardous conditions. The manual also explains international safety symbols used throughout.
The N62400 series is suitable for benchtop use or 19-inch rack installation, featuring a minimum operating voltage of 0.2V for full current, stable CR/CP functions, dynamic mode up to 20kHz, and a built-in ESR test function. It supports remote/local sensing and has a power-off memory function.
The series supports modes such as Constant Current (CC), Constant Voltage (CV), Constant Resistance (CR), and Constant Power (CP), along with dynamic modes like Continuous, Pulse, and Toggle. It includes auto test functions, discharge/charge tests, over current protection tests, programmable protection, and slew rate adjustments.
The manual details the use of buttons, the LCD screen, and menu settings for local operation, covering system, application, and protection settings, as well as factory reset procedures.
Guidelines for static and dynamic operations are provided, including parameter settings and mode selections. The manual also covers auto test procedures, capacity tests, and optional ESR and OCP tests.
Regular maintenance and fault self-inspection procedures are outlined to ensure the instrument's longevity and reliability.
The manual concludes with technical specifications for the N62400 series models, detailing power, voltage, and current capabilities.
Inspect the instrument for damage during transportation and check all accessories. Ensure the chassis is undamaged and operates normally.
The front panel includes a power switch, screen, function buttons, numeric buttons, and a knob. The rear panel features input terminals, LAN, RS232, CAN interfaces, and a power socket.
Ensure a 20cm gap for air circulation and use a suitable socket for the 3-core power cord with grounding protection. Perform a power-on self-test to check for errors.
Input connections should consider wire diameter, length, and polarity. Control connections include remote sense and external programming inputs. Use local or remote sense for accurate voltage measurement.
Auto Test simulates waveforms to improve test efficiency. Discharge and charge tests are available for batteries and supercapacitors. ESR measurement and Over Current Protection (OCP) tests are also supported.
N62400 offers programmable protection to ensure the safety of the Device Under Test (DUT), including current limit, over voltage protection (OVP), over current protection (OCP), and over power protection (OPP).
The N62400 provides multiple protection features such as OCP, OVP, OPP, reverse polarity warning (RV), over temperature protection (OTP), and more, designed to prevent damage to the device.
Slew rate is defined as the change of voltage or current per unit of time. Setting the slew rate to its maximum value minimizes transition time between main and transient values.
The N62400 can save up to 20 groups of parameters into EEPROM for easy recall. Fast Recall allows users to quickly access the first 10 groups using numeric buttons.
This function saves data during power-off or failure, ensuring data integrity.
The device supports Chinese and English languages, selectable through the menu.
Remote sense terminals provide accurate voltage measurement. Current monitoring output provides a proportional voltage signal to indicate input current.
Factory reset can be performed through the menu, retaining sequence files and parameters saved in EEPROM.
System settings include IP address, communication protocols, and language. Application settings cover sense mode, external control, and power-off memory.
Users can set programmable limits for current, voltage, and power, as well as load time and voltage thresholds.
The N62400 supports static operation modes including constant current (CC), constant voltage (CV), constant resistance (CR), and constant power (CP). Range selection ensures measurement accuracy.
Includes detailed steps for ESR Test, OCP Test, and MPPT Test, with specific parameter settings and recommendations for high current in supercapacitor tests.
Regular maintenance involves cleaning the device and checking power, operation, and system configuration. Annual calibration is recommended.
Specifications include measurement accuracy, model specifications, and environmental conditions, with details for models N62401 to N62406.
Specifications are subject to change, and users are advised to contact NGI for further details.
Catalog excerpts
Hunan Next Generation Instrumental T&C Tech. Co., Ltd. N62400 Series Low Voltage High Current DC Electronic Load User Manual © Copyright Hunan Next Generation Instrumental T&C Tech. Co., Ltd. Version: V20210806 N62400 Series Low Voltage High Current DC Electronic Load
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. N62400 Series Low Voltage High Current DC Electronic Load
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. N62400 Series Low Voltage High Current DC Electronic Load
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. N62400 Series Low Voltage High Current DC Electronic Load
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. 1 Preface Dear Customers, First of all, we greatly appreciate your choice of N62400 series DC electronic load (N62400 for short). We are also honored to introduce our company, Hunan Next Generation Instrumental T&C Tech. Co., Ltd. ( NGI for short). About Company NGI is a professional manufacturer of intelligent equipment and test & control instruments, committed to developing, manufacturing battery simulators, power supplies, electronic loads, and many more instruments. The products can be widely used in the industries of battery, power supply,...
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. 2 Safety Instructions In the operation and maintenance of the instrument, please strictly comply with the following safety instructions. Any performance regardless of attentions or specific warnings in other chapters of the manual may impair the protective functions provided by the instrument. NGI shall not be liable for the results caused by the neglect of those instructions. 2.1 Safety Notes > Confirm the AC input voltage before supplying power. > Reliable grounding: Before operation, the instrument must be reliably grounded to avoid the...
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. 3 Product 3.1.1 Brief Introduction N62400 series is developed based on NGI's years of experience in testing for fuel cell. It is with high accuracy, high reliability and high cost performance. N62400 series is with high power density and elegant appearance, which is available for benchtop use or installation in 19 inch rack. 3.1.2 Features ■ Min. operating voltage as low as 0.2V for full current 1200A ■ Stable and reliable CR/CP function supported by hardware ■ Loading high current at ultra-low voltage, convenient for fuel cell test ■ Built-in...
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. If any loss or damage, please contact NGI. 4. Check the whole instrument. If N62400 chassis is damaged or has abnormal operation, please contact our authorized distributor or NGI. NGI l NGI N62400 Series Low Voltage High Current DC Electronic Load
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd Figure 3 Side Dimension(mm) NGI l NGI N62400 Series Low Voltage High Current DC Electroni
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. 3.4 Installation Instruction N62400 dissipates heat through the built-in fans. When installing, please make sure there is a gap of at least 20cm between N62400 and other objects for air circulation. The power cord is a 3-core wire with grounding protection. Please use a suitable socket for operation. The power cord also matches your local voltage and plug type. If it is not matched, please contact NGI. 3.4.2 Power-on Self Test Before power-on, please make sure the following. 1) The nominal voltage of the AC input socket should be in the correct...
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. In case of test failure, please record the error information and contact NGI for support. If N62400 cannot be started properly, please refer to the following steps. 1) Check whether the power cord is properly connected. 2) Check whether the power is switched on. 3) Check whether the fuse is burned out. If yes, please replace it. Please use the proper fuse. When replacing, please open the plastic cover at the AC power socket. For more support, please contact NGI. 3.5 Connection 3.5.1 Input Connection Warning: To meet safety requirements,...
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. Meanwhile exceeding heating may cause safety accidents. It is recommended to use standard copper wire with bigger diameter and less length to ensure the voltage drop should be less than 0.5V while N62400 is working. Notice: To meet higher slew rate load specification and performance, the inductance of the wire between DUT and N62400 should be less than 5.0^H. 3.5.2 Control Connection At the rear panel, there are terminals for remote sense, external programming input, etc. Figure 7 Control Signal Terminal Table 6 Terminal Definition Note:...
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. 3.5.3 Sense Connection N62400 provides two types of sense: local sense and remote sense. User can select sense mode on the screen under Application on the menu. Local sense It is used when the load current is not very high. Remote sense Remote sense is also four-wire sense. When N62400 is working, it will cause a voltage drop in the leads between the DUT and terminals of N62400, which will affect the voltage measurement accuracy of the load. When working under CV, CR and CP mode, to ensure accurate measurement, it is recommended to use...
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. Low Voltage Test Connection N62400 Series Low Voltage High Current DC Electronic Load
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. 4 Functions and Features This chapter mainly describes the functions and features of N62400 series. N62400 provides two control modes: local control and remote control. Under local control mode, users can set and operate through N62400 buttons on front panel, and check N62400 status, parameters and readback data via the LCD screen. By remote control mode, it can realize most functions of local control. 4.1 Constant Current Mode (CC Mode) Under CC mode, N62400 consumes constant current no matter how the input voltage changes. Current range...
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