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ITech IT8800 Series User Manual

Programmable dc electronic load
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Programmable DC Electronic
Series IT8800 User's Manual
Load
Model: IT8813/IT8813B/IT8813C/IT8814/IT8814B/
IT8814C/IT8816/IT8816B/IT8816C/IT8817/
IT8817B/IT8817C/IT8818/IT8818B/IT8818C/
IT8818D/IT8830/IT8830B/IT8830H/IT8831/
IT8831B/IT8831H/IT8832/IT8832B/IT8832H/
IT8833/IT8833B/IT8833H/IT8834B/IT8834H/
IT8835B/IT8835H/IT8836B/IT8836H/IT8837B/
IT8837H/IT8838B/IT8838H/IT8839B/IT8839H/
IT8819H
Revision: V3.2
Via Acquanera, 29
22100 Como
tel. 031.526.566 (r.a.) fax 031.507.984
info@calpower.it
www.calpower.it

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  • Page 1 Via Acquanera, 29 22100 Como tel. 031.526.566 (r.a.) fax 031.507.984 info@calpower.it www.calpower.it Programmable DC Electronic Load Series IT8800 User’s Manual Model: IT8813/IT8813B/IT8813C/IT8814/IT8814B/ IT8814C/IT8816/IT8816B/IT8816C/IT8817/ IT8817B/IT8817C/IT8818/IT8818B/IT8818C/ IT8818D/IT8830/IT8830B/IT8830H/IT8831/ IT8831B/IT8831H/IT8832/IT8832B/IT8832H/ IT8833/IT8833B/IT8833H/IT8834B/IT8834H/ IT8835B/IT8835H/IT8836B/IT8836H/IT8837B/ IT8837H/IT8838B/IT8838H/IT8839B/IT8839H/ IT8819H Revision: V3.2...
  • Page 2 “Caution” signs indicate danger. It is extent of laws, ITECH is not committed languages of other countries or regions) required to pay attention to the contents to any explicit or implied guarantee for...

  • Page 3: Limitation Of Warranty

    ITECH, and ITECH will be responsible for return freight.  If the product is sent to ITECH for warranty service from other countries, the customer will be responsible for all the freight, duties and other taxes. Limitation of Warranty...

  • Page 4: Safety Precautions

     Do not block the air vent of the equipment. Environmental conditions The IT8800 series electronic load can only be used indoors or in low condensation areas. The following table shows general environmental requirements for this instrument. Environmental conditions...

  • Page 5: Waste Electrical And Electronic Equipment (Weee) Directive

    According to the equipment classification in Annex I of the WEEE directive, this instrument belongs to the “Monitoring” product. If you want to return the unnecessary instrument, please contact the nearest sales office of ITECH. Copyright © ITECH Electronic Co., Ltd.

  • Page 6: Compliance Information

    Connection of the instrument to a test object may produce radiations beyond the specified limit. Use high-performance shielded interface cable to ensure conformity with the EMC standards listed above. Safety Standard IEC 61010-1:2010/ EN 61010-1:2010 Copyright © ITECH Electronic Co., Ltd.

  • Page 7: Table Of Contents

    3.9.3 Toggle mode ..............................32 3.10 OCP test function ............................. 33 3.11 OPP test function ............................. 34 3.12 Battery discharge test function ........................35 3.13 CR-LED test function ............................36 Setting CR-LED Mode ............................37 Copyright © ITECH Electronic Co., Ltd.
  • Page 8 Chapter5 References of Load Communication Interfaces ................80 5.1 RS232 interface ..............................80 5.2 USB Interface ..............................81 5.3 GPIB interface..............................82 Appendix ................................83 Specifications of Red and Black Test Lines ....................... 83 Copyright © ITECH Electronic Co., Ltd.

  • Page 9: Chapter1 Acceptance And Installation

    10KW. Please refer lines to Table 1 - 2 for the test line specifications. Comprising user manual and documents related to programming and grammatical guidelines. Factory Test report before delivery. alignment Copyright © ITECH Electronic Co., Ltd.

  • Page 10: Installation Position

    1.2. Installation position The instrument should be installed at well-ventilated and rational-sized space. Please select appropriate space for installation based on the electronic load size. Model: IT8813/IT8814/IT8816/IT8813B/IT8814B/IT8816B/IT8813C/IT8814C/IT8816C Copyright © ITECH Electronic Co., Ltd.
  • Page 11 Acceptance and Installation Detailed dimensional drawings Copyright © ITECH Electronic Co., Ltd.
  • Page 12 Acceptance and Installation Model: IT8817/IT8817B/IT8817C/IT8818/IT8818B/IT8818C/IT8818D Detailed dimensional drawings Copyright © ITECH Electronic Co., Ltd.
  • Page 13 Acceptance and Installation Model: IT8819H/IT8830/IT8830B/IT8830H Detailed dimensional drawings Copyright © ITECH Electronic Co., Ltd.
  • Page 14 Acceptance and Installation  Model: IT8831/IT8831B/IT8831H/IT8832/IT8832B/IT8832H/IT8833/ IT8833B/ IT8833H/IT8834B/IT8834H, Refer to the following dimension drawing: Copyright © ITECH Electronic Co., Ltd.
  • Page 15 Acceptance and Installation  Model: IT8835B/IT8835H/IT8836B/IT8836H/IT8837B/IT8837H, Refer to the following dimension drawing: Copyright © ITECH Electronic Co., Ltd.

  • Page 16: Installation Of Power Line

    Working voltage of IT8800 series includes 110V and 220V (which can be selected by the switch on rear board of load). When IT8800 series load power is greater than or equal to 35KW, the 110V AC power input is not supported. AC power input level: ...
  • Page 17 Acceptance and Installation China America, Canada, Europe Britain Japan IT-171 IT-E173 IT-E174 IT-E172 Copyright © ITECH Electronic Co., Ltd.

  • Page 18: Chapter2 Quick Start

    Quick Start Chapter2 Quick Start This Chapter will introduce power-on check steps of IT8800 Series to ensure normal start-up and usage under initialization status of the load. Besides, to facilitate usage, this part also displays the functions of front board, rear board...
  • Page 19 350A 35KW IT8836B 500V 800A 40KW IT8836H 800V 400A 40KW IT8837B 500V 900A 45KW IT8837H 800V 450A 45KW IT8838B 500V 1000A 50KW IT8838H 800V 500A 50KW IT8839B 500V 1100A 55KW IT8839H 800V 600A 55KW Copyright © ITECH Electronic Co., Ltd.

  • Page 20: Introduction Of Front Panel

    5. Numeric keys, Esc keys and composite keys 6. Arrow Keys and Enter Key 2.3 Introduction to the keypad The keypad of IT8800 series is shown in the next figure. The following table explains the keys and buttons on the keypad. Shift Enables access to secondary functions.

  • Page 21: Fast Function Key

    Rotary knob to adjust the setups by 1 stepping. ×1 2.4 Fast function key A combination of front board keys and Shift composition keys in IT8800 Series can realize functions marked at key bottom. For details, see table below. To start or end short circuit test.

  • Page 22: Function Description Of Vfd Status Indicators

    2.6 Introduction of rear panel  Rear panel of IT8813/IT8814/IT8813B/IT8814B/IT8813C/IT8814C. ③ ④ ⑤ ⑥ ⑦ ① ⑧ ⑨ ②  Rear panel of IT8816 /IT8816B/IT8816C. ① ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ② Copyright © ITECH Electronic Co., Ltd.
  • Page 23 Quick Start  Rear panel of IT8817/IT8817B/IT8817C/IT8818/IT8818B/IT8818C/ IT8818D. ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ①  Rear panel of IT8819H/IT8830/IT8830B/IT8830H. ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ Copyright © ITECH Electronic Co., Ltd.
  • Page 24 The detail of the red box in the figure above is as shown as follows: ① ④ ⑤ ⑥ ⑦ ⑨ ⑧ ② ③ Input terminal Current detection terminal Copyright © ITECH Electronic Co., Ltd.

  • Page 25: Power-On Selftest

    (voltage, power and resistance). 4. Press [Shift] + 7 (Info), the electronic load VFD screen displays related information of the product. Press key to switch display of product model, product serial number and software version number. Copyright © ITECH Electronic Co., Ltd.
  • Page 26 T 5A 250VAC T 2.5A 250VAC IT8831/31B/31H T 6.30A 250VAC T 3.15A 250VAC IT8832/32B/32H T 6.30A 250VAC T 3.15A 250VAC IT8833/33B/33H T 6.30A 250VAC T 3.15A 250VAC IT8834B/34H T 6.30A 250VAC T 3.15A 250VAC Copyright © ITECH Electronic Co., Ltd.
  • Page 27 Does not support 110VAC input T 3.15A 250VAC IT8838B/38H Does not support 110VAC input T 3.15A 250VAC IT8839H/39H Does not support 110VAC input T 3.15A 250VAC 3) After replacement, install the fuse box back to original position, as shown below. Copyright © ITECH Electronic Co., Ltd.

  • Page 28: Chapter3 Function And Features

    3.2 Constant-status operation mode The electronic mode can work under the 4 constant-state operation modes:  Constant current operation mode (CC)  Constant voltage operation mode (CV)  Constant resistance operation mode (CR) Copyright © ITECH Electronic Co., Ltd.

  • Page 29: Constant Current Operation Mode (Cc)

    Set high and low rate and press [Enter] key for confirmation. Constant Current High-Rate Low-Rate Set ascending slope and press [Enter] key for confirmation. Constant Current Rise up=0.000A/uS Set descending slope and press [Enter] key for confirmation. Copyright © ITECH Electronic Co., Ltd.

  • Page 30: Constant Voltage Operation Mode (Cv)

    Press [CV] key and [Shift] + [CV] to enter parameter setting screen. Constant Voltage Range=120.00V Set maximum working voltage value and press [Enter] key for confirmation. Constant Voltage Range=2.33V Set maximum current value and press [Enter] key for confirmation. Constant Voltage High=66.000A Copyright © ITECH Electronic Co., Ltd.

  • Page 31: Constant Resistance Operation Mode (Cr)

    Press [CR] key and [Shift] + [CV] to enter parameter setting screen. Constant Resistance Range=7500.0Ω Set maximum working resistance value and press [Enter] key. Constant Resistance Range =2Ω Set maximum voltage value and press [Enter] key. Copyright © ITECH Electronic Co., Ltd.

  • Page 32: Constant Power Operation Mode (Cw)

    Key to adjust value at corresponding position. Operation steps Press [CW] key. Press [Shift] + [CV] to enter parameter setting screen. Constant Power Range=400.00W Set maximum working power value and press [Enter] key. Constant Power Copyright © ITECH Electronic Co., Ltd.

  • Page 33: Input Control Function

    110% of current range. Under CV mode, short circuit current is equivalent to that constant voltage value of load is 0 V. 3.6 System menu function (System) Press [Shift] + 5 to enter system menu setting (SYSTEM MENU). Initialize INITIALIZE SYSTEM? Copyright © ITECH Electronic Co., Ltd.
  • Page 34 Arrow Key to select RS232 19200 O odd parity check XON/XOFF Communication configuration 38400 57600 115200 USBTMC GPIB Address (0-31) PROTOCOL SCPI (Default) SCPI protocol Protocol Extend-Table Expand SCPI protocol for compatibility of other machines Copyright © ITECH Electronic Co., Ltd.

  • Page 35: Configuration Menu Function (Config)

    Start auto voltage range Stop auto voltage range TimeV1 Measure voltage rise/drop time Measure TIMER VOLTAGE1 Point=0.000V Set starting voltage value TimeV2 Measure voltage rise/drop time TIMER VOLTAGE2 Point=120.00V Set stop voltage value FILTER Smoothing function Copyright © ITECH Electronic Co., Ltd.

  • Page 36: Triggering Function

    Initialize Power-ON Buzzer Press Left/Right key and move to Trigger. Press [Enter] to enter triggering source selection screen. Manual (Def) External Hold Press Left/Right key to select trigger method. Press [Enter] to complete setting. Copyright © ITECH Electronic Co., Ltd.

  • Page 37: Dynamic Test Function

    1A and 2A. Set the dynamic test parameters and perform the test as follows: Press [Tran] key. Operate Left/Right key. Move to On and press confirmation. TRANSITION On Off Select Continuous, Press [Enter] key (The Trig lamp that indicates VFD Copyright © ITECH Electronic Co., Ltd.

  • Page 38: Pulse Mode

    Under pulse mode, after enabling dynamic test operation, the load will switch to A value after receiving of a trigger signal. Then the load will switch back to B value and be constant at B value after maintaining A for pulse width time. Copyright © ITECH Electronic Co., Ltd.
  • Page 39 Set time width and press [Enter] key for confirmation. TRANSITION Pulse Width=5S (0.00002-3600S) Start dynamic test and operate Left/Right key. Move to On and press [Enter] key for confirmation. TRANSITION On Off 10. Enter the dynamic test mode. Copyright © ITECH Electronic Co., Ltd.

  • Page 40: Toggle Mode

    Operate Left/Right key and select high rate and low rate. Move to the High-Rate and press [Enter] key. TRANSITION High-Rate Low-Rate Set ascending slope and press [Enter] key. TRANSITION Rise up=2.000A/uS Set descending slope and press [Enter] key for confirmation. Copyright © ITECH Electronic Co., Ltd.

  • Page 41: Ocp Test Function

    3.10 OCP test function The IT8800 series electronic load is provided with over-current protection test function (OCP). Under OCP test mode, when input voltage reached Von value, delay for a while for the electronic load to latch. Ascend value by step value at regular interval.

  • Page 42: Opp Test Function

    STOP 3.11 OPP test function The IT8800 series electronic load is provided with overpower protection test function (OPP). Under OPP test mode, when input voltage reached Von value, delay for a while for the electronic load to latch. Ascend value by step value at regular interval.

  • Page 43: Battery Discharge Test Function

    FAULT STOP 3.12 Battery discharge test function In the IT8800 series electronic load, constant current mode is applied for capacity test with programmatic setting of cutoff level/capacity/discharging time If cutoff level is set as the stop condition, the system determines whether the battery is about to reach the set threshold value or unsafe status when the battery voltage is low, and if yes, an automatic stop will be activated.

  • Page 44: Cr-Led Test Function

    Press [Esc] key to exit battery capacity test mode in any three methods. 3.13 CR-LED test function With adding of diode break-over voltage setting in the IT8800 series electronic load under conventional CR mode, the electronic load only works when voltage applied at its both ends is higher than the diode break-over voltage to give a real simulation of diode working principle, i.e., the ripple current at real LED...

  • Page 45: Setting Cr-Led Mode

    Vo: constant working voltage of load LED of LED constant current source;  Io: output current of LED constant current source;  Vd: break-over voltage of diode (string);  R: constant resistance. V-I curve of LED is as shown below. Copyright © ITECH Electronic Co., Ltd.

  • Page 46: Measurement Of Voltage Rise Time

    In the example: Vd=50V*0.8=40V R=（0.2*50V）/0.2A=50Ω. 3.14 Measurement of voltage rise time The IT8800 series electronic load is provided with special voltage rise/drop time measurement function. This function gives a simple analog of voltage rise/drop speed of oscilloscope test power. Operation methods: Set initial voltage and final voltage Press [Shift] + 6 keys to enter configuration menu.

  • Page 47: Configuration Save Function

    Set parameters and press [Shift] + 4 (Save) to save data. Press 9 key (to select in which group the data is to be saved). 5.8949V 0.99994A 5.89W SAVE 9 Press [Enter] key for confirmation. 5.8949V 0.99994A 5.89W cc=1.000A Copyright © ITECH Electronic Co., Ltd.

  • Page 48: Von Function

    When VON LATCH function is started, the load starts load test only when the power voltage rises and is higher than Von Point loading voltage. When the power voltage drops and is lower than Von Point unloading voltage, the load will not unload. Copyright © ITECH Electronic Co., Ltd.

  • Page 49: Protective Function

    (or send command to PROTection:CLEar), the load front board (OVP) word will get cleared and the load will exit OVP protection status. 3.17.2 Over-current protection (OCP) The electronic load is provided with two kinds of over-current protections: Copyright © ITECH Electronic Co., Ltd.

  • Page 50: Over-Power Protection (Opp)

    When internal power device of load is higher than about 85 °C, the load is under temperature protection. At this time, the load will automatically be OFF and VFD will display OTP. At the same time, OT and PS bits of the status Copyright © ITECH Electronic Co., Ltd.

  • Page 51: List Operation (List)

    Press [List] key. Operate Left/Right key. Move to Edit and press [Enter] key. LIST Recall Edit Operate Left/Right key and move to the High-Rate and press [Enter] key. EDIT LIST High-Rate Low-Rate Set CC range and press [Enter] key. Copyright © ITECH Electronic Co., Ltd.
  • Page 52 For direct recall of existing List files and triggering of List operation, refer to steps below: Operation steps Press [List] key and ensure that ON lamp flicks. If not, press [Enter] before operating Left/Right key. Move to [Recall] and press [Enter] key. LIST Copyright © ITECH Electronic Co., Ltd.

  • Page 53: Terminal Function Of Rear Board

    Before using the remote sense measurement function, the user must set the load in remote sense measurement mode. Setting procedures: Press [Shift] + 6 to enter menu. Move Left/Right key and select Remote-Sense. Press [Enter] key and select ON to start Sense function. Copyright © ITECH Electronic Co., Ltd.

  • Page 54: External Trigger Operation

    TTL electrical level. The load input will be switched on in case of low level external input; and the load input will be switched off in case of high level external input. Copyright © ITECH Electronic Co., Ltd.

  • Page 55: Voltage Fault Indication Terminal

    1 of the interface and switch CV mode through pin 6. 3.21 Auto test function The IT8800 series electronic load delivers strong auto test functions, which can analog several tests. A total of 10 groups of test files can be edited, and each group test file has 10 steps.
  • Page 56 Set loading time of step 2. If 2S is required, directly press 2 key on the board. Press [Enter] key. EDIT PROGRAM SEQ02 On Time=2S 10. Set unloading time of step 2. If 2S is required, directly press 2 key. Press [Enter] key. EDIT PROGRAM SEQ02 Off Time=2S Copyright © ITECH Electronic Co., Ltd.
  • Page 57 14. Save the programmed files in EEPROM. A total of 10 groups of files can be saved. If it is to save edited files in group 1, press 1 key. Press [Enter] key for confirmation. PROGRAM Save Program File=1 (1-10) Copyright © ITECH Electronic Co., Ltd.
  • Page 58 Move Left/Right Key and select Run. Press [Enter] key for confirmation. PROGRAM Recall Edit Display auto test file 1. PRG01 STOP Press [Trig] key. Operate auto test file 1. Press [Pause] key on board to pause auto test. Press Move key for next step. Copyright © ITECH Electronic Co., Ltd.

  • Page 59: Chapter4 Technical Specifications

    10 mV voltage Accuracy ±(0.025%+0.025%FS) Range 0~6A 0~60A 0~3A 0~30A Read-back Resolution 0.1mA 0.1mA current Accuracy ±(0.05%+0.05%FS) ±(0.05%+0.05%FS) Range 750W 750W Read-back Resolution 10mW 10mW power Accuracy ±(0.2%+0.2%FS) ±(0.2%+0.2%FS) Protection range ≒760W ≒760W Overpower protection Copyright © ITECH Electronic Co., Ltd.
  • Page 60 100mW Mode Accuracy 0.2%+0.2%FS 0.2%+0.2%FS Dynamic mode CC mode 20uS~3600S /Res:1 uS 20uS~3600S /Res:1 uS T1&T2 Accuracy 5uS±100ppm 5uS±100ppm Ascending/descending 0.001~0.25A/uS 0.01~2.5A/uS 0.0001~0.1A/uS 0.001~1A/uS slope ≒30uS ≒30uS ≒20uS ≒20uS Minimum rise time Measuring range Copyright © ITECH Electronic Co., Ltd.
  • Page 61 10mA current mode Accuracy ±(0.05%+0.05%FS) 10Ω~7.5KΩ 10Ω~7.5KΩ Range 0.01Ω~10Ω 0.03Ω~10Ω Constant Resolution 16bit 16bit resistance 0.01%+0.08S mode Accuracy 0.01%+0.08S *2 0.01%+0.0008S 0.01%+0.0008S Range 3000W 2.5KW Constant power Resolution 100mW 100mW Mode Accuracy 0.2%+0.2%FS 0.2%+0.2%FS Copyright © ITECH Electronic Co., Ltd.
  • Page 62 ≒5mΩ ≒30mΩ ≒30mΩ (CR) 1MΩ Input 300KΩ terminal impedance （mm） Dimension W439*H133.3*D580 Model IT8813C Input voltage 0~120V 0~12A 0~120A Input current Rated value 750W Input power ( 0-40 °C) Min. operating 0.12V/12A 1.2V/120A voltage Copyright © ITECH Electronic Co., Ltd.
  • Page 63 Overpower ≒760W protection Overcurrent ≒13.2A ≒132A protection Overvoltage ≒130V protection Overtemperatur ≒85℃ e protection Specification ≒13.2A 132A Current (CC) Voltage (CV) Short circuit ≒10mΩ ≒10mΩ Resistance (CR) Input terminal 300KΩ impedance （mm） Dimension W439*H133.3*D580 Copyright © ITECH Electronic Co., Ltd.
  • Page 64 ±(0.025%+0.025%FS) Range 0~24A 0~240A Read-back Resolution 10mA current Accuracy ±(0.05%+0.05%FS) Range 1500W Read-back Resolution 100mW power Accuracy ±(0.2%+0.2%FS) Protection range Overpower ≒1550W protection Overcurrent ≒26.4A ≒264A protection Overvoltage ≒130V protection Overtempera ≒85℃ ture protection Copyright © ITECH Electronic Co., Ltd.
  • Page 65 Measuring range Range 0~18V 0~120V Read-back Resolution 1 mV 10 mV voltage Accuracy ±(0.025%+0.025%FS) ±(0.025%+0.025%FS) Range 0~48A 0~480A Read-back Resolution 10mA current Accuracy ±(0.05%+0.1%FS) Range 3000W Read-back Resolution 100mW power Accuracy ±(0.2%+0.2%FS) Protection range Copyright © ITECH Electronic Co., Ltd.
  • Page 66 Dynamic mode CC mode T1&T2 20uS~3600S /Res:1 uS 5uS±100ppm Accuracy Ascending/descending 0.001~0.25A/uS 0.01~2.5A/uS 0.001~0.25A/uS 0.01~2.5A/uS slope ≒100 uS ≒100 uS ≒120 uS ≒120 uS Minimum rise time Measuring range Read-back Range 0~18V 0~120V 0~18V 0~120V Copyright © ITECH Electronic Co., Ltd.
  • Page 67 Accuracy ±(0.025%+0.05%FS) Range 0~12A 0~120A 0~15A 0~150A Constant current Resolution 10mA 10mA mode ±(0.05%+0.05%FS) Accuracy 0.03Ω~10Ω 10Ω~7.5KΩ 0.03Ω~10Ω 10Ω~7.5KΩ Range Constant resistance Resolution 16bit 16bit mode Accuracy 0.01%+0.08S *2 0.01%+0.0008S 0.01%+0.08S *2 0.01%+0.0008S Copyright © ITECH Electronic Co., Ltd.
  • Page 68 Model IT8817C IT8818C Input voltage 0~120V 0~120V Input current 0~600A 0~600A 0~72A 0~720A Rated value 4500W Input power ( 0-40 °C) Min. operating 0.18V/60A 1.8V/600A 0.18V/72A 1.8V/720A voltage Range ~18V ~120V ~18V ~120V Constant Copyright © ITECH Electronic Co., Ltd.
  • Page 69 ≒66A ≒66A ≒79.2A ≒792A Overcurrent protection ≒130V Overvoltage protection Overtemperature ≒85℃ protection Specification ≒66A ≒660A ≒79.2A ≒792A Current (CC) Voltage (CV) Short circuit Resistance ≒3mΩ ≒2.5mΩ (CR) Input 300KΩ terminal impedance （mm） Dimension W439*H266*D590 Copyright © ITECH Electronic Co., Ltd.
  • Page 70 ±(0.025%+0.025%FS) ±(0.025%+0.025%FS) Accuracy Range 0~70A 0~700A Read-back Resolution 10mA current ±(0.05%+0.05%FS) Accuracy Range Read-back Resolution 100mW power ±(0.2%+0.2%FS) Accuracy Protection range Overpower ≒≒6KW protection Overcurrent ≒77A ≒770A protection Overvoltage ≒65V protection Overtempera ≒85℃ ture Copyright © ITECH Electronic Co., Ltd.
  • Page 71 Read-back voltage Resolution 10mV Accuracy ±(0.025%+0.025%FS) ±(0.025%+0.025%FS) Range 0~8A 0~80A Read-back current Resolution 10mA Accuracy ±(0.05%+0.05%FS) Range 7500W Read-back power Resolution Accuracy ±(0.2%+0.25%FS) Protection range Overpower ≒7550W protection Overcurrent ≒8.8A ≒88A protection ≒850V Overvoltage Copyright © ITECH Electronic Co., Ltd.
  • Page 72 Measuring range Range 0~18V 0~120V Read-back Resolution 1 mV 10 mV voltage ±(0.025%+0.025%FS) ±(0.025%+0.025%FS) Accuracy 0~50A 0~500A Range Read-back Resolution 10mA current Accuracy ±(0.05%+0.05%FS) Range 10KW Read-back Resolution power ±(0.2%+0.2%FS) Accuracy Protection range ≒10.1KW Overpower Copyright © ITECH Electronic Co., Ltd.
  • Page 73 Range Constant Resolution power Mode Accuracy 0.2%+0.2%FS Measuring range Range 0~50V 0~500V Read-back 10 mV Resolution voltage Accuracy ±(0.025%+0.025%FS) ±(0.025%+0.025%FS) Range 0~20A 0~200A Read-back Resolution 10mA current ±(0.05%+0.05%FS) Accuracy 10KW Range Read-back power Resolution Copyright © ITECH Electronic Co., Ltd.
  • Page 74 Accuracy 0.01%+0.08S 0.01%+0.0008S Range 10KW Constant power Resolution Mode 0.2%+0.2%FS Accuracy Measuring range Range 0~80V 0~800V Read-back Resolution 1 mV 10 mV voltage Accuracy ±(0.025%+0.025%FS) ±(0.025%+0.025%FS) 0~10A 0~100A Range Read-back current 10mA Resolution Copyright © ITECH Electronic Co., Ltd.
  • Page 75 ±(0.2%+0.1%F mode Accuracy ±(0.1%+0.1%FS) ±(0.1%+0.1%FS) 0.005Ω~10Ω 10Ω~7.5KΩ 0.005Ω~10Ω 10Ω~7.5KΩ Range Constant Resolution 16bit 16bit resistance 0.01%+0.08S 0.01%+0.0008S 0.01%+0.08S 0.01%+0.0008 mode Accuracy Range 15KW 20KW Constant power Resolution Mode 0.2%+0.2%FS 0.25%+0.25%FS Accuracy Measuring range Copyright © ITECH Electronic Co., Ltd.
  • Page 76 Accuracy ±(0.05%+0.05%FS) ±(0.05%+0.05%FS) 0~150A 0~1500A Range Constant current Resolution 10mA 100mA mode ±(0.1%+0.1%FS) ±(0.2%+0.1%FS) Accuracy 0.005Ω~10Ω 10Ω~7.5KΩ Range Constant resistance 16bit Resolution mode Accuracy 0.01%+0.08S *2 0.01%+0.0008S Range 25KW Constant power Mode Resolution Copyright © ITECH Electronic Co., Ltd.
  • Page 77 ±(0.025%+0.05%FS) ±(0.025%+0.05%FS) Accuracy 0~30A 0~300A 0~40A 0~400A Range Constant 10mA 10mA current Resolution mode Accuracy ±(0.05%+0.05%FS) ±(0.05%+0.1%FS) 0.01Ω~10Ω 10Ω~7.5KΩ 0.01Ω~10Ω 10Ω~7.5KΩ Range Constant Resolution 16bit 16bit resistance 0.01%+0.08S 0.01%+0.08S 0.01%+0.0008 mode Accuracy 0.01%+0.0008S Copyright © ITECH Electronic Co., Ltd.
  • Page 78 ( 0-40 °C) Min. operating 0.25V/50A 2.5V/500A 0.3V/60A 3V/600A voltage Range 0.1~50V 0.1~500V 0.1~50V 0.1~500V Constant voltage Resolution 10mV 10mV mode ±(0.025%+0.05%FS) ±(0.025%+0.05%FS) Accuracy 0~50A 0~500A 0~60A 0~600A Constant Range 10mA 10mA current Resolution Copyright © ITECH Electronic Co., Ltd.
  • Page 79 Input voltage Input current 0~15A 0~150A 0~20A 0~200A Rated value Input power 15KW 20KW ( 0-40 °C) Min. operating 0.3V/15A 3V/150A 0.3V/20A 3V/200A voltage Range 0.1~80V 0.1~800V 0.1~80V 0.1~800V Constant voltage Resolution 10mV 10mV Copyright © ITECH Electronic Co., Ltd.
  • Page 80 2MΩ Input terminal 2MΩ impedance Dimension Model IT8833H IT8834H Input voltage 0~800V 0~800V Input current 0~25A 0~250A 0~30A 0~300A Rated value 25KW 30KW ( 0-40 °C) Input power Min. operating 0.3V/25A 3V/250A 0.3V/30A 3V/300A Copyright © ITECH Electronic Co., Ltd.
  • Page 81 ≒33A ≒330A protection Overvoltage ≒850V ≒850V protection Overtemperat ≒85℃ ≒85℃ protection Specification ≒27.5A ≒275A ≒33A ≒330A Current (CC) Voltage (CV) Short circuit Resistance ≒12mΩ ≒12mΩ ≒10mΩ ≒10mΩ (CR) 2MΩ Input 2MΩ terminal impedance Dimension Copyright © ITECH Electronic Co., Ltd.
  • Page 82 ≒77A ≒770A ≒38.5A ≒385A protection Overvoltage ≒530V ≒850V protection Overtemper ≒85℃ ≒85℃ ature protection Specification ≒77/70A ≒770/700A ≒38.5/35A ≒385/350A Current (CC) Voltage (CV) Short circuit Resistance ≒4mΩ ≒4mΩ ≒8.5mΩ ≒8.5mΩ (CR) 1MΩ 2MΩ Input Copyright © ITECH Electronic Co., Ltd.
  • Page 83 ±(0.2%+0.2%FS) ±(0.2%+0.2%FS) Accuracy Protection range Overpower ≒40.1KW ≒40.1KW protection Overcurrent ≒88A ≒880A ≒44A ≒440A protection Overvoltage ≒530V ≒850V protection Overtemper ≒85℃ ≒85℃ ature protection Specification ≒88/80A ≒880/800A ≒44/40A ≒440/400A Short circuit Current (CC) Copyright © ITECH Electronic Co., Ltd.
  • Page 84 ±(0.1%+0.1%FS) ±(0.05%+0.05%FS) Accuracy Range 45KW 45KW Read-back Resolution power Accuracy ±(0.2%+0.2%FS) ±(0.2%+0.2%FS) Protection range ≒45.1KW ≒45.1KW Overpower protection ≒99A ≒990A ≒49.5A ≒495A Overcurrent protection ≒530V ≒850V Overvoltage protection Overtemperature ≒85℃ ≒85℃ protection Specification Copyright © ITECH Electronic Co., Ltd.
  • Page 85 Read-back Resolution 10mA 100mA 10mA current Accuracy ±(0.1%+0.1%FS) ±(0.05%+0.1%FS) Range 50KW 50KW Read-back Resolution power ±(0.2%+0.2%FS) ±(0.2%+0.2%FS) Accuracy Protection range Overpower ≒50.1KW ≒50.1KW protection Overcurrent ≒110A ≒1100A ≒55 A ≒550A protection ≒530V ≒850V Overvoltage Copyright © ITECH Electronic Co., Ltd.
  • Page 86 1 mV 10 mV voltage Accuracy ±(0.025%+0.025%FS) 0~110A 0~1100A 0~60A 0~600A Range Read-back 10mA 100mA 10mA Resolution current ±(0.1%+0.1%FS) ±(0.05%+0.1%FS) Accuracy Range 55KW 55KW Read-back Resolution power Accuracy ±(0.2%+0.2%FS) ±(0.2%+0.2%FS) Protection range ≒55.1KW ≒55.1KW Overpower Copyright © ITECH Electronic Co., Ltd.

  • Page 87: Additional Features

    Memory capacity: 100 groups. Recommended calibration frequency: 1 time/year. Cooling method: fan. Fan control temperature: Temperature 40°C 50°C 70°C 85°C Fan status First gear Second Third Temperature protection (OH) gear gear and load is shut off. Copyright © ITECH Electronic Co., Ltd.

  • Page 88: Chapter5 References Of Load Communication Interfaces

    EIA RS-232, the load is connected to another DTE (e.g., PC COM interface) with direct-connected Modem cable. NOTE The rear board of IT8800 series has two COM interfaces. The upper 9-pin COM interface connector is RS232 interface; and the lower 9-pin COM interface is external signal control interface.

  • Page 89: Usb Interface

    NONE All all 8 data bits have no check Local address: (0-31, factory set value: 0) Start Bit Parity=None 8 Data Bits Stop Bit 5.2 USB Interface Connect the load and the computer using a cable with two USB interfaces Copyright © ITECH Electronic Co., Ltd.

  • Page 90: Gpib Interface

    0-31. Press [Shift] + 5 to enter system menu functions. Press Left/Right key to find Communication. Select GPIB and set address. Input address and press [Enter] for confirmation. The load works by setting GPIB address on front board. GPIB address is saved in NVM. Copyright © ITECH Electronic Co., Ltd.

  • Page 91: Appendix

    Specifications of Red and Black Test Lines ITECH provides you with optional red and black test lines, which individual sales and you can select for test. For specifications of ITECH test lines and maximum current values, refer to the table below.
  • Page 92 Contact Us Thanks for purchasing ITECH products. In case of any doubts, please contact us as follows: 1. Refer to accompanying data disk and relevant manual. 2. Visit ITECH website: www.itechate.com. 3. Select the most convenient contact method for further information.

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