IT8837H (45000W, 800V/450A, Measurement Resolution 1mV/1mA, 1-Ch High Accuracy Programmable DC Electronic Load)

關於產品

The ITECH IT8800 Series High Accuracy Programmable DC Electronic Loads are single channel high accuracy and high power programmable DC electronic loads with high resolution and accuracy and superior performance and efficiency. The IT8800 Series are composed of 32 models with high measurement resolution 0.1mV/0.01mA in max, CV/CC//CR/CP modes, CR-LED test, List mode, remote sensing function, short-circuit simulation, battery discharge test function, dynamic mode, adjustable current rising/falling speed 0.0001A/µs – 2.5A/µs in max, the highest 50kHz testing speed of voltage and current and easy operation with display access keys, all providing the greatest test convenience for complex tests and solution easily and rapidly. The especial LED mode supports LED driver test and provides programmable parameters for LED current simulation. The IT8800 Series are valuable high performance products; they are strong, smart and reliable high accuracy programmable DC electronic loads which are widely used in R&D, production and quality control testing lines and maintenance center in favorite for LED power driver test and multi-purpose power testing solution and application.

產品特點

Display screen: Highlight VFD display
Maximum load power of single channel up to 50000W, in configuration of
- Load voltage 500V and load current 1000A (IT8838B)
- Load voltage 800V and load current 500A (IT8838H)
Maximum load voltage up to 800V (IT8819H, IT8830H, IT8831H, IT8833H, IT8834H, IT8837H, IT8838H)
Maximum load current up to 1500A (IT8833)
4 modes of operation: CV, CC, CR, CP
CV mode
- IT8818D
  - Range: 1-6V
    - Resolution: 1mV
    - Accuracy: ± (0.05% + 0.02%FS)
  - Range: 1-60V
    - Resolution: 10mV
    - Accuracy: ± (0.05% + 0.025%FS)
- IT8812C, IT8813C, IT8814C, IT8816C, IT8817C, IT8818C, IT8830
  - Range: 1-18V
    - Resolution: 1mV
    - Accuracy: ± (0.025% + 0.05%FS)
  - Range: 1-120V
    - Resolution: 10mV
    - Accuracy: ± (0.025% + 0.05%FS)
- IT8811
  - Range: 1-18V
    - Resolution: 1mV
    - Accuracy: ± (0.05% + 0.02%FS)
  - Range: 1-120V
    - Resolution: 10mV
    - Accuracy: ± (0.05% + 0.025%FS)
- IT8831, IT8832, IT8833
  - Range: 1-18V
    - Resolution: 1mV
    - Accuracy: ± (0.05% + 0.05%FS)
  - Range: 1-120V
    - Resolution: 10mV
    - Accuracy: ± (0.05% + 0.05%FS)
- IT8813B, IT8814B, IT8816B, IT8817B, IT8818B, IY8831B, IT8833B, IT8834B, IT8836B, IT8837B, IT8838B
  - Range: 1-50V
    - Resolution: 1mV
    - Accuracy: ± (0.025% + 0.05%FS)
  - Range: 1-500V
    - Resolution: 10mV
    - Accuracy: ± (0.025% + 0.05%FS)
- IT8812B
  - Range: 1-50V
    - Resolution: 1mV
    - Accuracy: ± (0.05% + 0.025%FS)
  - Range: 1-500V
    - Resolution: 10mV
    - Accuracy: ± (0.05% + 0.025%FS)
- IT8830B
  - Range: 1-50V
    - Resolution: 1mV
    - Accuracy: ± (0.025% + 0.05%FS)
  - Range: 1-500V
    - Resolution: 10mV
    - Accuracy: ± (0.05% + 0.05%FS)
- IT8819H, IT8830H, IT8831H, IT8833H, IT8834H, IT8837H, IT8838H
  - Range: 1-80V
    - Resolution: 1mV
    - Accuracy: ± (0.05% + 0.05%FS)
  - Range: 1-800V
    - Resolution: 10mV
    - Accuracy: ± (0.05% + 0.05%FS)
CC mode
- IT8811, IT8813B
  - Range: 0-3A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.05%FS)
  - Range: 0-30A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.05%FS)
- IT8812B
  - Range: 0-3A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.05%FS)
  - Range: 0-15A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.05%FS)
- IT8812C, IT8814B
  - Range: 0-6A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.05%FS)
  - Range: 0-60A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.05%FS)
- IT8819H
  - Range: 0-8A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.05%FS)
  - Range: 0-80A
    - Resolution: 10mA
    - Accuracy: ± (0.05% + 0.05%FS)
- IT8816B, IT8830H
  - Range: 0-10A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.05%FS)
  - Range: 0-100A
    - Resolution: 10mA
    - Accuracy: ± (0.05% + 0.05%FS)
- IT8817B
  - Range: 0-12A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.05%FS)
  - Range: 0-120A
    - Resolution: 10mA
    - Accuracy: ± (0.05% + 0.05%FS)
- IT8813C
  - Range: 0-12A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.1%FS)
  - Range: 0-120A
    - Resolution: 10mA
    - Accuracy: ± (0.05% + 0.1%FS)
- IT8818B, IT8831H
  - Range: 0-15A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.05%FS)
  - Range: 0-150A
    - Resolution: 10mA
    - Accuracy: ± (0.05% + 0.05%FS)
- IT8830B
  - Range: 0-20A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.05%FS)
  - Range: 0-200A
    - Resolution: 10mA
    - Accuracy: ± (0.05% + 0.05%FS)
- IT8814C
  - Range: 0-24A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.1%FS)
  - Range: 0-240A
    - Resolution: 10mA
    - Accuracy: ± (0.05% + 0.1%FS)
- IT8833H
  - Range: 0-25A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.1%FS)
  - Range: 0-250A
    - Resolution: 10mA
    - Accuracy: ± (0.05% + 0.1%FS)
- IT8831B
  - Range: 0-30A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.05%FS)
  - Range: 0-300A
    - Resolution: 10mA
    - Accuracy: ± (0.05% + 0.05%FS)
- IT8834H
  - Range: 0-30A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.1%FS)
  - Range: 0-300A
    - Resolution: 10mA
    - Accuracy: ± (0.05% + 0.1%FS)
- IT8837H
  - Range: 0-45A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.1%FS)
  - Range: 0-450A
    - Resolution: 10mA
    - Accuracy: ± (0.05% + 0.1%FS)
- IT8816C
  - Range: 0-48A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.1%FS)
  - Range: 0-480A
    - Resolution: 10mA
    - Accuracy: ± (0.05% + 0.1%FS)
- IT8830, IT8833B, IT8838H
  - Range: 0-50A
    - Resolution: 1mA
    - Accuracy: ± (0.05% + 0.1%FS)
  - Range: 0-500A
    - Resolution: 10mA
    - Accuracy: ± (0.05% + 0.1%FS)
- IT8817C, IT8834B
  - Range: 0-60A
  - Resolution: 1mA
  - Accuracy: ± (0.1% + 0.1%FS)
- Range: 0-600A
  - Resolution: 10mA
  - Accuracy: ± (0.1% + 0.1%FS)
- IT8818D
  - Range: 0-70A
    - Resolution: 1mA
    - Accuracy: ± (0.1% + 0.1%FS)
  - Range: 0-700A
    - Resolution: 10mA
    - Accuracy: ± (0.1% + 0.1%FS)
- IT8818C
  - Range: 0-72A
    - Resolution: 1mA
    - Accuracy: ± (0.1% + 0.1%FS)
  - Range: 0-720A
    - Resolution: 10mA
    - Accuracy: ± (0.1% + 0.1%FS)
- IT8831
  - Range: 0-75A
    - Resolution: 1mA
    - Accuracy: ± (0.1% + 0.1%FS)
  - Range: 0-750A
    - Resolution: 10mA
    - Accuracy: ± (0.1% + 0.1%FS)
- IT8836B
  - Range: 0-80A
    - Resolution: 1mA
    - Accuracy: ± (0.1% + 0.1%FS)
  - Range: 0-800A
    - Resolution: 10mA
    - Accuracy: ± (0.1% + 0.1%FS)
- IT8837B
  - Range: 0-90A
    - Resolution: 1mA
    - Accuracy: ± (0.1% + 0.1%FS)
  - Range: 0-900A
    - Resolution: 10mA
    - Accuracy: ± (0.1% + 0.1%FS)
- IT8832, IT8838B
  - Range: 0-100A
    - Resolution: 10mA
    - Accuracy: ± (0.1% + 0.1%FS)
  - Range: 0-1000A
    - Resolution: 100mA
    - Accuracy: ± (0.2% + 0.1%FS)
- IT8833
  - Range: 0-150A
    - Resolution: 10mA
    - Accuracy: ± (0.1% + 0.1%FS)
  - Range: 0-1500A
    - Resolution: 100mA
    - Accuracy: ± (0.2% + 0.1%FS)
CR mode
- IT8818C, IT8818D, IT8830, IT8831, IT8832, IT8833, IT8837B, IT8838B
  - Range: 005Ω-10Ω
    - Resolution: 16 bit
    - Accuracy: 01% + 0.08S
  - Range: 10Ω-7.5kΩ
    - Resolution: 16 bit
    - Accuracy: 01% + 0.0008S
- IT8833B, IT8834B
  - Range: 01Ω-10Ω
    - Resolution: 16 bit
    - Accuracy: 01% + 0.008S
  - Range: 10Ω-7.5kΩ
    - Resolution: 16 bit
    - Accuracy: 01% + 0.0008S
- IT8814C, IT8816C, IT8817C, IT8831B, IT8834H, IT8836B, IT8837H, IT8838H
  - Range: 01Ω-10Ω
    - Resolution: 16 bit
    - Accuracy: 01% + 0.08S
  - Range: 10Ω-7.5kΩ
    - Resolution: 16 bit
    - Accuracy: 01% + 0.0008S
- IT8813C, IT8830B, IT8831H, IT8833H
  - Range: 02Ω-10Ω
    - Resolution: 16 bit
    - Accuracy: 01% + 0.08S
  - Range: 10Ω-7.5kΩ
    - Resolution: 16 bit
    - Accuracy: 01% + 0.0008S
- IT8816B, IT8817B, IT8818B, IT8819H
  - Range: 03Ω-10Ω
    - Resolution: 16 bit
    - Accuracy: 01% + 0.08S
  - Range: 10Ω-7.5kΩ
    - Resolution: 16 bit
    - Accuracy: 01% + 0.0008S
- IT8811, IT8812C, IT8830H
  - Range: 05Ω-10Ω
    - Resolution: 16 bit
    - Accuracy: 01% + 0.08S
  - Range: 10Ω-7.5kΩ
    - Resolution: 16 bit
    - Accuracy: 01% + 0.0008S
- IT8814B
  - Range: 1Ω-10Ω
    - Resolution: 16 bit
    - Accuracy: 01% + 0.08S
  - Range: 10Ω-7.5kΩ
    - Resolution: 16 bit
    - Accuracy: 01% + 0.0008S
- IT8813B
  - Range: 15Ω-10Ω
    - Resolution: 16 bit
    - Accuracy: 01% + 0.08S
  - Range: 10Ω-7.5kΩ
    - Resolution: 16 bit
    - Accuracy: 01% + 0.0008S
- IT8812B
  - Range: 3Ω-10Ω
    - Resolution: 16 bit
    - Accuracy: 01% + 0.08S
  - Range: 10Ω-7.5kΩ
    - Resolution: 16 bit
    - Accuracy: 01% + 0.0008S
- Note: S is the resistance readback range and known as 1/[1/R+(1/R)*0.01%+0.08],1/[1/R-(1/R)*0.01%-0.08]
CP mode
- IT8811
  - Range: 150W
    - Resolution: 10mW
    - Accuracy: ± (0.1% + 0.1%FS)
- IT8812B
  - Range: 200W
    - Resolution: 10mW
    - Accuracy: ± (0.1% + 0.1%FS)
- IT8812C
  - Range: 250W
    - Resolution: 10mW
    - Accuracy: ± (0.2% + 0.2%FS)
- IT8813B
  - Range: 750W
    - Resolution: 10mW
    - Accuracy: 2% + 0.2%FS
- IT8813C
  - Range: 750W
    - Resolution: 100mW
    - Accuracy: 2% + 0.2%FS
- IT8814B
  - Range: 1200W
    - Resolution: 100mW
    - Accuracy: 2% + 0.2%FS
- IT8814C
  - Range: 1500W
    - Resolution: 100mW
    - Accuracy: 2% + 0.2%FS
- IT8816B
  - Range: 2500W
    - Resolution: 100mW
    - Accuracy: 2% + 0.2%FS
- IT8816C
  - Range: 3000W
    - Resolution: 100mW
    - Accuracy: 2% + 0.2%FS
- IT8817B
  - Range: 3600W
    - Resolution: 100mW
    - Accuracy: 2% + 0.2%FS
- IT8817C
  - Range: 4500W
    - Resolution: 100mW
    - Accuracy: 2% + 0.2%FS
- IT8818B
  - Range: 5000W
    - Resolution: 100mW
    - Accuracy: 2% + 0.2%FS
- IT8818C, IT8818D
  - Range: 6000W
    - Resolution: 100mW
    - Accuracy: 2% + 0.2%FS
- IT8819H
  - Range: 7500W
    - Resolution: 1W
    - Accuracy: 2% + 0.25%FS
- IT8830, IT8830B, IT8830H
  - Range: 10000W
    - Resolution: 1W
    - Accuracy: 2% + 0.2%FS
- IT8831, IT8831B, IT8831H
  - Range: 15000W
    - Resolution: 1W
    - Accuracy: 2% + 0.2%FS
- IT8832
  - Range: 20000W
    - Resolution: 1W
    - Accuracy: 25% + 0.25%FS
- IT8833, IT8833B, IT8833H
  - Range: 25000W
    - Resolution: 1W
    - Accuracy: 2% + 0.2%FS
- IT8834B, IT8834H
  - Range: 30000W
    - Resolution: 1W
    - Accuracy: 2% + 0.2%FS
- IT8836B
  - Range: 40000W
    - Resolution: 1W
    - Accuracy: 2% + 0.2%FS
- IT8837B, IT8837H
  - Range: 45000W
    - Resolution: 1W
    - Accuracy: 2% + 0.2%FS
- IT8838B, IT8838H
  - Range: 50000W
    - Resolution: 1W
    - Accuracy: 2% + 0.2%FS
High measurement resolution in load ratings
- Power: 10mW in max
- Voltage: 1mV in max
- Current: 01mA in max
High measurement accuracy in load ratings
- Power: ± (0.1% + 0.1%FS) in max
- Voltage: ± (0.025% + 0.05%FS) in max
- Current: ± (0.05% + 0.05%FS) in max
Convenient data entry via knob or numerical key pad
With rotary coding switch to make an easy operation
Dynamic mode: Up to 25kHz
Voltage and current measurement speed for up to 50kHz
Adjustable current rising/falling speed 0.0001A/µs – 2.5A/µs in max
Voltage rising speed test
CR-LED test function
Support output terminal at the rear panel
Short circuit simulation and measure short-circuit current peak value
List mode
Remote sense function
Current monitoring function
Battery discharge test function
OCP and OPP test functions
Automatic test function
Dynamic test function
Protection function: OVP, OCP, OTP, OPP, input reverse polarity protection
Self-test system
Intelligent fan control
Built-in Buzzer for warning
Power-off memory function
Memory capacity: 100 groups, for save and recall
Provide free remote control software (IT9000-PV8800) with strong function saving secondary development time
Versatile interface: RS232, USB and GPIB and external 0-10V analog control interfaces come as standard

產品功能

Up to 50kHz high speed for voltage and current measurements
Dynamic mode as up to 25kHz in continuous transient operation: The transient test allows switching between two different load values. The function is used to test the dynamic characteristic of power supply (See photo section)
CR-LED function: Unique LED mode can provide LED driver test and can be used in LED power simulation. The LED constant power output waveform usually has large current ripple. This is because of the ripple, traditional CR mode can’t simulate the actual characteristic of LED driver, its testing current and voltage will shake. Based on traditional CR mode, CR-LED mode adds the setting item of diode break-over voltage. Only when the input voltage is above the set value, will the DC load start to work. Thus, the IT8800 Series can simulate the actual characteristic of LED
OCP & OPP tests: OCP and OPP test functions are particularly suitable for over-circuit and over-power point tests of products such as lithium battery protection module and power module. Through built-in OCP and OPP functions, the user can set such parameters as the initial current, cutoff current, step current, lasting time of each step current and the voltage drop value for judgment of protection of built-in OCP program for test. This will finally help users to automatically obtain over-current or over-power protection point and to judge if it is within the scope. The user can use it for design validation and production line system to save test time and improve test efficiency (See photo section)
Automatic test function: The IT8800 Series auto-test function can simulate many kinds of testing. It totally can edit 10 test files, and can make connection between one file and another. Also you can choose the condition to stop the test: stop when testing pass or fail. Its adjustable current speed rate of rising and falling can make auto-test simulate various kinds of test waveform
List mode: Not limited to just switching between two levels, the List mode helps you generate more complex sequences of input changes with several different levels (See photo section)
Adjustable rising/falling speed of current by List mode: List mode allows you to generate a complex current sequence. Moreover, the mode change can be synchronized with an internal or external signal, to accomplish dynamic and precise test. A list file includes following parameters: file name, step counts (range 2-84), time width of single step (0.00002s+600s), step value and slope. The LIST function can make many kinds of complex sequences, to meet complicated test requirements. The slope range is 0.0001A/µs -5A/µs in max (See photo section)
Voltage rising/falling time test: The IT8800 Series provide unique measurement function to test voltage rising/falling time. It can calculate the time from one voltage to another voltage without the need of oscilloscope
Current monitoring function: The IT8800 Series allow the users to monitor actual current through I-monitor terminal. Users could connect an oscilloscope to observe the actual current. It will generate at 0-10V analog signal to represent to 0-100% rated current of the front panel
Support Living and Latch modes: The IT8800 Series support with loading voltage setting and it offers two kinds of load modes. Choosing Living means working goes after status. When choosing Latch, it means work load point latch with loading status. It can meet different test requirements (See photo section)
Battery discharge test function: The IT8800 Series test the battery capability in CC mode. Make a program to set the stop conditions. There are three stop conditions can be chosen: stop voltage, stop capacity and stop timer. The discharge process of electronic load is terminated if the system checks the battery reaches the specified value or under an insecurity state. In testing procedure, the battery voltage, discharge current, discharge time and discharged capability will display on the front panel (See photo section)
Remote sense: When working in CC, CV, CP and CR mode, if the electronic load consumes a very large current, it will cause a voltage drop in the leads between the connected device and terminals of the electronic load. In order to ensure testing accuracy, the electronic load provides a pair of remote sensing terminals in the rear panel where users can sense the output terminal voltage of the connected device. Users should set the electronic load in REMOTE SENSE mode before using this function. By eliminating the effect of the voltage drop in the load leads, remote sensing provides greater accuracy by allowing the electronic load to regulate directly at the source’s output terminals
VISA, USBTMC and SCPI communication protocol supported

產品應用

Automotive electronics test solution
Solar and photovoltaic inverter test solution
LED lighting and driver test solution
Battery test solution such as discharging test for battery
Charger and wireless charger test solutions
Power supply test solution
Performance testing of multi-channel communication source of AC-DC power supply and DC-DC power supply
Stability and aging test for switch of car door

標準配件

RS232 Interface
GPIB Interface
USB Interface
External 0-10V Analog Control Interface
USB Cable
Calibration Report
CD (Operation Manual & Communication Protocol Manual)
Power Cable

產品選項

IT-E301/30A: 30A Red & Black Testing Wires 200cm x 2
IT-E301/60A: 60A Red & Black Testing Wires 150cm x 2
IT-E301/120A: 120A Red & Black Testing Wires 200cm x 2
IT-E301/240A: 240A Red & Black Testing Wires 200cm x 2
IT-E301/360A: 360A Red & Black Testing Wires 200cm x 2

關於力高

力高，成立於1980年，是一家以香港及中國大陸為基地之先進電子儀器代理商。

在過去歲月中，我們全力從事電子測試儀器銷售行業. 應用範圍廣泛覆蓋電訊，電源，數據通訊，無線通訊技術，音響及教育等各類市場。

IT8837H (45000W, 800V/450A, Measurement Resolution 1mV/1mA, 1-Ch High Accuracy Programmable DC Electronic Load)

IT8837H (45000W, 800V/450A, Measurement Resolution 1mV/1mA, 1-Ch High Accuracy Programmable DC Electronic Load)

關於產品

產品特點

產品功能

產品應用

標準配件

產品選項

相關目錄

關於力高

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