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ITech IT8700P+ Series User Manual

Dc programmable electronic loads
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DC Programmable Electronic
Loads
IT8700
Series
User Manual
Model: IT8700 series, IT8700P series, IT8700P+ series
Version: 5.1

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Summary of Contents for ITech IT8700P+ Series

  • Page 1 DC Programmable Electronic Loads IT8700 Series User Manual Model: IT8700 series, IT8700P series, IT8700P+ series Version: 5.1...
  • Page 2 Notices Warranty Safety Notices © Itech Electronic, Co., Ltd. 2023 The materials contained in this No part of this manual may be document are provided “as is”, and reproduced in any form or by any means (including electronic storage and...

  • Page 3: Warranty

    Warranty ITECH warrants that the product will be free from defects in material and workmanship under normal use for a period of one (1) year from the date of delivery (except those described in the Limitation of Warranty below).

  • Page 4: Safety Precautions

    Failure to comply with these precautions or specific warnings elsewhere in this manual will constitute a default under safety standards of design, manufacture and intended use of the instrument. ITECH assumes no liability for the customer’s failure to comply with these precautions.

  • Page 5: Environmental Conditions

    The service life of the product is 10 years. The product can be used safely within the environmental protection period; otherwise, the product should be put into the recycling system. Copyright © Itech Electronic Co., Ltd.

  • Page 6: Waste Electrical And Electronic Equipment (Weee) Directive

    With reference to the equipment classifications described in the Annex I of the WEEE Directive, this instrument is classified as a “Monitoring and Control Instrument”. To return this unwanted instrument, contact your nearest ITECH office. Copyright © Itech Electronic Co., Ltd.

  • Page 7: 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 8: Table Of Contents

    4.3.4 Constant power (CW) mode ........................45 4.3.5 Compound Operation Mode ........................46 4.3.6 Operations ..............................47 4.4 Transient operation ............................48 4.4.1 Continuous ............................... 49 4.4.2 Pulsed ............................... 49 4.4.3 Toggled ..............................49 4.4.4 A/B transient operations ......................... 50 Copyright © Itech Electronic Co., Ltd.
  • Page 9 Remote operation ........................100 6.1 RS232 interface ..............................100 6.2 Ether Net interface ............................102 6.3 GPIB interface(Only for IT8700(G) series) ......................102 6.4 USB interface ..............................102 Appendix ................................103 Specifications of Red and Black Test Lines ......................103 Copyright © Itech Electronic Co., Ltd.

  • Page 10: Chapter1 Inspection And Installation

    When returning the instrument for warranty service or repair, the specified packing requirements shall be met. 1.2 Installation Size Introduction The instrument should be installed at well-ventilated and rational-sized space. Please select appropriate space for installation based on the electronic load size(unit: mm). Copyright © Itech Electronic Co., Ltd.
  • Page 11 Inspection and Installation IT8701P Mainframe size Detailed Dimension Drawing Copyright © Itech Electronic Co., Ltd.
  • Page 12 Inspection and Installation IT8702/IT8702P Mainframe size Detailed Dimension Drawing Copyright © Itech Electronic Co., Ltd.
  • Page 13 Inspection and Installation IT8703/IT8703P Mainframe size Detailed Dimension Drawing Copyright © Itech Electronic Co., Ltd.
  • Page 14 Inspection and Installation IT8722/IT8723/IT8722B Module Detailed Dimension Drawing Copyright © Itech Electronic Co., Ltd.
  • Page 15 Inspection and Installation IT8731/IT8732/IT8733/IT8732B/IT8733B Module Detailed Dimension Drawing Copyright © Itech Electronic Co., Ltd.
  • Page 16 Inspection and Installation IT8722P/IT8723P/IT8722BP Module Detailed Dimension Drawing Copyright © Itech Electronic Co., Ltd.
  • Page 17 Inspection and Installation IT8731P/IT8732P/IT8733P/IT8732BP/IT8733BP Module Detailed Dimension Drawing Copyright © Itech Electronic Co., Ltd.
  • Page 18 Inspection and Installation IT8722P+/IT8722BP+/IT8723P+ Module Detailed Dimension Drawing Copyright © Itech Electronic Co., Ltd.
  • Page 19 Inspection and Installation IT8731P+/IT8732P+/IT8733P+/IT8732BP+/IT8733BP+ Module Detailed Dimension Drawing Copyright © Itech Electronic Co., Ltd.

  • Page 20: Module Installation

    Remove the rear cover panel on machine frame. Remove the top cover panel of the machine frame first, and then remove the cover panel. Then install the top cover panel. Copyright © Itech Electronic Co., Ltd.
  • Page 21 Inspection and Installation Push the module into the slot. Module Mainframe Insert the load module into the slot of the Mainframe along the rail. Copyright © Itech Electronic Co., Ltd.

  • Page 22: Channel Number

    1th and 2th channels, 3th and 4 channels, 5 and 6 channels… The figure below displays the rule of the module channel number. IT8701P/IT8702P mainframe and IT8703/IT8703P extended mainframe can be understood in the same way. Copyright © Itech Electronic Co., Ltd.

  • Page 23: Mainframe Installation

    IT8702/IT8703/IT8702P/IT8703P has no accessory, each of them can be installed directly on the 19-inch support through screw holes of the left ear. Copyright © Itech Electronic Co., Ltd.

  • Page 24: Connecting The Power Cord

    If the power cord included in the instrument you purchased does not match the voltage, contact the dealer or manufacturer for change. China United States & Europe England Canada IT-E171 IT-E173 IT-E174 IT-E172 Figure 1-5 types of power cord Copyright © Itech Electronic Co., Ltd.

  • Page 25: Connecting The Device Under Test

    Re-tighten the terminals. Directly connect the other end of the red and black cables to the DUT. Note Only the IT8731P/IT8732P/IT8732BP/IT8733P/IT8733BP/IT8722P/IT8723P/IT8722BP/ IT8731P+/IT8732P+/IT8733P+/IT8732BP+/IT8733BP+/IT8722P+/IT8722BP+/IT8723P+ modules support front panel terminal wiring.  Rear panel terminal wiring Copyright © Itech Electronic Co., Ltd.
  • Page 26 Vsense measurement terminal. Note The electric potential on the positive terminal of Vsense connector must be higher than negative one. The connection diagram and steps of remote sensing are as follows:  Front panel terminal wiring Copyright © Itech Electronic Co., Ltd.
  • Page 27 Install the terminal cover, leave the other end of remote sense cables and the red and black cables outside. Connect the other end of the remote sense cables and the red and black cables to the DUT. Copyright © Itech Electronic Co., Ltd.
  • Page 28 (80V/40A/300W) can dissipate up to 80V/80A/600W. The following picture 1-7 illustrates the paralleled connection of two same models for increased power dissipation. IT8700P+ series modules support master-slave parallel connection, see 4.17 Parallel Function for details.

  • Page 29: Chapter2 Quick Start

    Support anti-reverse alarm function *1 Only IT8700P+ have. *2 Only IT8700P/IT8700P+ have. IT8700P+ series front panel terminal current limit 15A. *3 IT8700 only supports CC, CV, CR, CW operation mode. *4 IT8700/ IT8700P series voltage and current measurement speed is 50 kHz.

  • Page 30: Introduction

    IT8703P Four-load module expansion unit Note  IT8700 series modules should be equipped with IT8702 mainframe. IT8700/IT8700P/IT8700P+ series modules should be equipped with IT8701P/IT8702P  mainframe. Interface of mainframe：RS232, USB, Ether Net.  *IT8700(G) is the model with built-in GPIB, the function is the same as standard model, ...

  • Page 31: Front Pannel Introduction

    Module keyboard: <A/B>,<Short>,<Tran>,<Mode>,<On/Off> and direction keys. Knob, change parameters Mainframe function keyboard: control each channel’s operating status. Control input status: On/Off . Specific buttons: <Chan>, <Save>, <Recall>, <Setup>, <On/Off>, <Trig>, <Start>, <Pause>, <Enter>, <Shift>, <▲>, <▼>. Copyright © Itech Electronic Co., Ltd.

  • Page 32: Rear Panel Description

    Do not use terminal board without protective grounding. Before operation, be sure that the power supply is well grounded.  To avoid burning out, pay attention to marks of positive and negative polarities before wiring. Copyright © Itech Electronic Co., Ltd.
  • Page 33 Fuse specification Fuse specification Model (110VAC) (220VAC) IT8701P T5A 250V T2.5A 250V IT8702 T5A 250V T2.5A 250V IT8702P T5A 250V T2.5A 250V IT8703 T5A 250V T2.5A 250V IT8703P T5A 250V T2.5A 250V Copyright © Itech Electronic Co., Ltd.
  • Page 34 Quick Start 3) After replacement, install the fuse box back to original position, as shown below. Copyright © Itech Electronic Co., Ltd.

  • Page 35: Chapter3 Panel Function Introduction

    The operation of setting and editing parameters of each channel referred below are on the mainframe front panel. Function keys ： The following are the detailed description about the functions and specific operations achievable of all the keys. Description Copyright © Itech Electronic Co., Ltd.
  • Page 36 ▼ ▼ key is used to move up, select the menu; key is used to Enter Enter Shift Shift move down, select the menu; key is used to confirm; key is a comprehensive key. Copyright © Itech Electronic Co., Ltd.

  • Page 37: Menu List

    Set the working current/voltage/resistance value I / V / R / Setup the maximum voltage value/maximum current value Vmax/Amax Setup the minimum voltage value/minimum current value Vmin/Amin Alim Set limited current value under CV/CR/CW mode. Copyright © Itech Electronic Co., Ltd.
  • Page 38 SYNC ON SET Setup Synchronization ON / OFF function Turn on synchronization function ON〈DEFAULT〉 Turn off synchronization function VON POINT Set the load’s von point VON LATCH Von point latch state, ON /OFF EXIT Copyright © Itech Electronic Co., Ltd.
  • Page 39 Turn on synchronization function Turn off synchronization function Von Point Set the load’s von point Von Latch Von point latch state, On / Off Exit Measure Rate Filter the input voltage of the instrument to reduce interference. Copyright © Itech Electronic Co., Ltd.
  • Page 40 Set the load’s von point Von Latch Von point latch state, On / Off Exit Measure Rate Filter the input voltage of the instrument to reduce interference. Slow The filtering speed is low speed. Copyright © Itech Electronic Co., Ltd.
  • Page 41 OFF. Enable RC-CTRL function When the load input voltage is lower than a certain value (VON), disconnect the capacitor between the input terminals, and then connect the capacitor after the input Copyright © Itech Electronic Co., Ltd.
  • Page 42 Select the port to communicate with a computer RS232〈DEFAULT〉 USB TMC-USB488 GPIB ETHERNET RS232 SET Baudrate Set Setup the communication baud rate 4800 <Default> 9600 19200 38400 57600 115200 Parity Set Setup the communication parity Copyright © Itech Electronic Co., Ltd.

  • Page 43: Channel Option

    3.1.4 Save and recall First select the channel to be edited at the main frame front panel, after having Save Save edited, press key to save, press 1 numeric key to save to the first group Copyright © Itech Electronic Co., Ltd.

  • Page 44: Configuration Menu Introduction

    Below are the detail introduction of module panel keys and functions. 3.2.1 Single channel module panel Fig 3-2 single channel module panel Module’s panel view ： high-brightness VFD display show module ‘s working mode. Module’s panel keyboard: Button Description Switch A/B transient preset value Copyright © Itech Electronic Co., Ltd.

  • Page 45: Dual Channel Module Panel

    L; lower displays information for channel R. Module’s panel keyboard： Button Description Switch the left/right channels. Realize short testing, allows the load to simulate a short-circuit at the input Short Short Copyright © Itech Electronic Co., Ltd.

  • Page 46: Vfd Indicator Function Description

    TRAN is lit up, when the module enables transient mode. LIST is lit up, when select the LIST mode at the configuration. SENSE is enabled in remote meter function. 3.4 8-pin control connector IT8700 electronic load 8-pin connector on rear panel（figure 3-5） ： Copyright © Itech Electronic Co., Ltd.

  • Page 47: External Trigger Connections

    When select bus trigger mode, first set the trigger source as BUS, connect the electronic load by GPIB or USB communication interface, then if get the *TRG command, the load will produce a trigger signal. Copyright © Itech Electronic Co., Ltd.

  • Page 48: External On/Off Control Connection

    This interface can be used to connect extended frame. IT8702 can take up to 16 channels with IT8703. IT8701P can take up to 12 channels with extended frame and IT8702P can take up to 16 channels with IT8703P. Copyright © Itech Electronic Co., Ltd.

  • Page 49: Controlling Link

    There is an 8-pin connector on every module’s rear panel. The following will introduce in detail the 8 pins’ specific functions. IT8700/IT8700P IT8700P+ Fig 3-9 Terminals on single-channel module rear panel Description Ground Voltage fault indication terminal Copyright © Itech Electronic Co., Ltd.
  • Page 50 Ext_PRG+ and pin Ext_PRG-. 0-10V adjustable analogue simulate the 0-fullscale to regulate the input voltage and current of the electronic load(10V indicate the full range of load voltage or current value）. Copyright © Itech Electronic Co., Ltd.

  • Page 51: Chapter4 Operations Introduction

    Baudrate Set Parity Set Handshake Set Exit ▼ ▼ Note: means to press this key to choose. 4.3 Operating modes The electronic load can work in the following 4 modes: Constant current operation mode (CC) Copyright © Itech Electronic Co., Ltd.

  • Page 52: Constant Current (Cc) Mode

    You can set current level’s rise/fall slew rate on the front panel or by remote operation. The slew rate programmed act in effect to the immediate, triggered and transient current level changes. Copyright © Itech Electronic Co., Ltd.

  • Page 53: Constant Resistance (Cr) Mode

    4.3.3 Constant voltage (CV) mode In this mode, the electronic load will attempt to sink enough current to control the source voltage to the programmed value. See figure 4-3. Copyright © Itech Electronic Co., Ltd.

  • Page 54: Constant Power (Cw) Mode

    4.3.4 Constant power (CW) mode In CW mode, electronic load will consume a constant power. As shown in fig4-4, when input voltage increase, the input current will decrease, while power will remain the same. P=(V*I). Copyright © Itech Electronic Co., Ltd.

  • Page 55: Compound Operation Mode

    When the CV is working, the maximum loading current is limited.  The CR+CC mode is commonly used in the testing of voltage limiting, current limiting characteristics, constant voltage accuracy, and constant Copyright © Itech Electronic Co., Ltd.

  • Page 56: Operations

    Enter Press key to enter range selection menu <Range>, press ▼ ▼ key to enter the mode selection menu <Mode>, press key to select, Enter such as <low range>, press key to confirm. CH01 Copyright © Itech Electronic Co., Ltd.

  • Page 57: Transient Operation

    The transient testing modes have 3 kinds: continuous, pulsed, or toggled.  Continuous: Generates a respective pulse stream the toggles between two load levels  Pulse: Generates a load change that returns to its original state after some Copyright © Itech Electronic Co., Ltd.

  • Page 58: Continuous

    In toggle mode, the electronic load will switch between A level and B level when receiving a triggering signal after the transient operation is enabled. The following picture shows the current waveform in toggle transient operation. Copyright © Itech Electronic Co., Ltd.

  • Page 59: A/B Transient Operations

    ▼ ▼ Press key to enter A LEVEL setting <TRANa>，such as 10.00A, Enter press key to confirm Transition Level = 10.00A ▼ ▼ Press key to enter A level width setting <Ta>，such as 0.003S， Copyright © Itech Electronic Co., Ltd.
  • Page 60 IT8700 programming guide to get more). CURRent:TRANsient:MODE CONTinous CURRent:TRANsient:ALEVel 5 CURRent:TRANsient:AWIDth 0.6mS CURRent:TRANsent:BLEVel 10 CURRent:TRANsient:BWIDth 0.7mS TRANsient ON TRIGger:IMMediate NOTE The transient function of IT8700P+ series load supports CC mode only. Copyright © Itech Electronic Co., Ltd.

  • Page 61: List Operation

    On/Off Press to close the load’s input. ▼ ▼ Shift Shift Enter Press +5，press key to select <list>, press key to ▼ ▼ Enter confirm, press key to select List<Edit list>, press key to Copyright © Itech Electronic Co., Ltd.
  • Page 62 ▲ ▲ Enter press key to select <list>, press to confirm. Fixed List 19. Press to exit. On/Off On/Off ，open the load’s input. 20. Press Trig Trig 21. Press to trigger. Copyright © Itech Electronic Co., Ltd.

  • Page 63: Triggered Operation

    Short operation won’t affect the present setting. When turn off the short state, the load returns to the original set state. The actual value of the electronic in short operation depends on the mode and Copyright © Itech Electronic Co., Ltd.

  • Page 64: Input On/Off Operation

    When disable Von LATCH, voltage rise and is higher than the Von loading voltage, input of electronic load is turned on. When the power supply’s voltage fall and is lower than Von unload value, input is turned off. Copyright © Itech Electronic Co., Ltd.
  • Page 65 Von unload value, input won’t be turned off. Fig 4-11 VON LATCH load’s working range Von function panel operations Power on the electronic load Select a channel, such as channel 1 CH01 CC OFF Vdc=0.0000V Adc=0.0000A Copyright © Itech Electronic Co., Ltd.

  • Page 66: Protection Functions

    OC bit will be set; when the hardware OCP is removed, the status register’s OC bit will be reset. Hardware over current protection won’t affect load’s on/off state. Shift Shift  Software OCP: users can set load’s software OCP value, steps: Copyright © Itech Electronic Co., Ltd.

  • Page 67: Over Power Protection (Opp)

    Sense switch is turned on. When the input state is ON and the difference between input terminal voltage and sense remote voltage exceeds the specified voltage, sense protection will be enabled. The instrument input will be Copyright © Itech Electronic Co., Ltd.

  • Page 68: Save And Recall Operation

    1, the others followed are numbered in order. Press numeric keys to select the channel to be tested, □7□5□3□1changes to □7□Y□Y□1，it stands for 3/5 is selected Enter Enter to be edited. Press to confirm. Copyright © Itech Electronic Co., Ltd.
  • Page 69 12. Set the condition when stop testing, Complete mean stop test When all the steps are completed, Failure mean stop test when the testing fails. Press ▲ ▲ ▼ ▼ Enter Enter 、 keys to select, such as <Complete>, press key to confirm. Stop Condition﹥ ﹥Complete Failure Copyright © Itech Electronic Co., Ltd.
  • Page 70 Voltage Upper Limit = 5.800V ▼ ▼ Press key to move the cursor to Vmin=0.000V, you need to set the Enter Enter low limit of testing voltage, press key to enter the menu. Copyright © Itech Electronic Co., Ltd.
  • Page 71 ▼ ▼ Pause Pause key, then press key to continue test by one step. press Pause Pause key to continue the test until the test is finished. Copyright © Itech Electronic Co., Ltd.

  • Page 72: Cr-Led Test Function

    CR, press key to confirm. Const Current Const Voltage >Const Resis. ▼ ▼ Press key to move to Rset=7500.0. You need to set the constant resistance. Const Resis. Set=7500.0 Copyright © Itech Electronic Co., Ltd.

  • Page 73: Ocp Test Function

    R=0.2V/I 4.15 OCP Test Function IT8700P+ series electronic load is provided with over-current protection test function (OCP Test). 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 74 12. Set cutoff current value, press to confirm. End Current Set= 0.0000A Enter 13. Set OCP value, press to confirm. OCP Voltage Set= 0.000V Enter 14. Set overcurrent range (maximum value), press to confirm. Max Current Set= 0.0000A Copyright © Itech Electronic Co., Ltd.

  • Page 75: Opp Test Function

    Pass: 0.0000A 4.16 OPP Test Function IT8700P+ series electronic load is provided with overpower protection test function (OPP Test). 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 76 14. Set overcurrent range (maximum value), press to confirm. Max Current Set= 0.0000A Enter 15. Set overcurrent range (minimum value), press to confirm. Min Current Set= 0.0000A Enter 16. Save OPP test documents, press to confirm. Save OPP File 1（1-5） Copyright © Itech Electronic Co., Ltd.

  • Page 77: Parallel Function

    Pass: 0.0000A 4.17 Parallel Function The IT8700P+ series load provides a maximum power of 600W, and users can connect multiple modules in parallel to expand the current and power of the load. This series of loads can be connected in parallel with up to 16 channel modules, up to 4800W.
  • Page 78 Slave Select □7□Y□Y□□ Enter e) After the master-slave is configured, the interface is displayed as follows. >Group CH01 After making the master-slave setting, to ensure normal operation, you need to restart the electronic loads. Copyright © Itech Electronic Co., Ltd.

  • Page 79: Chapter5 Specifications

    0~3A 0~20A Readback current Resolution 0. 01mA 0.1mA Accuracy ±(0.05%+0.05%FS) Range 250W Readback power Resolution 10mW Accuracy ±(0.2%+0.2%FS) Protection range ≒250W ≒3.3A ≒22A ≒82V ≒85℃ Specification ≒3.3/3A ≒22/20A Current（CC） Voltage（CV） Short-circuit Resistance ≒50mΩ （CR） Copyright © Itech Electronic Co., Ltd.
  • Page 80 Measuring range Range 0~18V 0~80V Readback Resolution 0.1 mV 1 mV voltage Accuracy ±(0.025%+0.025%FS) ±(0.025%+0.025%FS) Range 0~4.5A 0~45A Readback Resolution 0.1mA current Accuracy ±(0.05%+0.05%FS) Range 300W Readback Resolution 10mV power Accuracy ±(0.2%+0.2%FS) Protection range ≒310W Copyright © Itech Electronic Co., Ltd.
  • Page 81 Measuring range Range 0~18V 0~80V Readback Resolution 0.1 mV 1 mV voltage Accuracy ±(0.025%+0.025%FS) ±(0.025%+0.025%FS) Range 0~4A 0~40A Readback Resolution 0.1mA current Accuracy ±(0.05%+0.05%FS) Range 200W Readback Resolution 10mW power Accuracy ±(0.2%+0.2%FS) Protection range Copyright © Itech Electronic Co., Ltd.
  • Page 82 5uS+100ppm Rising/fallin Dynamic g slope 0.0001~0.25A/uS 0.001~2.5A/uS mode Rising ≒15uS ≒15uS time Measuring range Range 0~18V 0~80V Readback Resolution 0.1 mV 1 mV voltage Accuracy ±(0.025%+0.025%FS) ±(0.025%+0.025%FS) Range 0~6A 0~60A Readback current Resolution 0.1mA Copyright © Itech Electronic Co., Ltd.
  • Page 83 0.01%+0.0008S Input voltage 600W CP mode Input current 10mW Input power ±(0.2%+0.2%FS) Dynamic mode CC mode T1＆T2 20uS~3600S /Res:1u S Accuracy 5uS+100ppm Dynamic Rising/falling mode slope 0.0001~0.25A/uS 0.001~2.5A/uS Rising time ≒35uS ≒35uS Measuring range Copyright © Itech Electronic Co., Ltd.
  • Page 84 0.1mA CC mode ±(0.05%+0.05%FS) Accuracy ±(0.05%+0.05%FS) 0.3Ω~10Ω 10Ω~7.5KΩ Range CR mode Resolution 16bit Accuracy 0.01%+0.08S 0.01%+0.0008S Range 250W CP mode Resolution 10mW Accuracy ±(0.2%+0.2%FS) Dynamic mode CC Mode Dynamic mode T1＆T2 20uS~3600S/Res:1uS Accuracy 5uS±100ppm Copyright © Itech Electronic Co., Ltd.
  • Page 85 ±(0.05%+0.025%FS) Range 0~3A 0~20A Resolution 0.1mA CC mode Accuracy ±(0.05%+0.05%FS) ±(0.05%+0.05%FS) 0.25Ω~10Ω 10Ω~7.5KΩ Range CR mode Resolution 16bit Accuracy 0.01%+0.08S 0.01%+0.0008S Input voltage 300W CP mode Input current 10mW Input power ±(0.2%+0.2%FS) Dynamic mode Copyright © Itech Electronic Co., Ltd.
  • Page 86 Range 0~18V 0~500V CV mode Resolution 10mV Accuracy ±(0.05%+0.025%FS) ±(0.05%+0.025%FS) Range 0~3A 0~30A Resolution 0.1mA CC mode Accuracy ±(0.05%+0.05%FS) ±(0.05%+0.05%FS) 0.2Ω~10Ω 10Ω~7.5KΩ Range CR mode Resolution 16bit Accuracy 0.01%+0.08S 0.01%+0.0008S CP mode Range 500W Copyright © Itech Electronic Co., Ltd.
  • Page 87 ( 0～40 ℃) Input power 250W Min operation voltage 0.15V/3A 1.0V/20A Range 0~18V 0~80V CV mode Resolution 10mV Accuracy ±(0.05%+0.025%FS) ±(0.05%+0.025%FS) Range 0~3A 0~20A Resolution 0.1mA CC mode ±(0.05%+0.05%FS) Accuracy ±(0.05%+0.05%FS) 0.05Ω~10Ω 10Ω~7.5KΩ CR mode Range Copyright © Itech Electronic Co., Ltd.
  • Page 88 *7 Minimum rise time: 10%-90% current rise time Model IT8723P Input voltage 0~80V Input current 0~45A Rated value Input power 300W ( 0～40 ℃) Min operation 0.14V/4.5A 1.4V/45A voltage CV mode Range 0~18V 0~80V Copyright © Itech Electronic Co., Ltd.
  • Page 89 *4 Ascending/descending slope: 10%-90% current ascending slope from 0 to maximum current *5 Minimum rise time: 10%-90% current rise time Model IT8731P Input voltage 0~80V Rated value Input current 0~40A ( 0～40 ℃) Input power 200W Copyright © Itech Electronic Co., Ltd.
  • Page 90 *2 The scope of read-back resistance is: （ 1/(1/R+(1/R)*0.01%+0.08),1/(1/R-(1/R)*0.01%-0.08) ） *3 The voltage/current input is no less than 10% FS *4 Ascending/descending slope: 10%-90% current ascending slope from 0 to maximum current *5 Minimum rise time: 10%-90% current rise time Copyright © Itech Electronic Co., Ltd.
  • Page 91 ≒6.6/6A ≒66/60A Current（CC） Short-circuit Voltage（CV） ≒25mΩ Resistance（CR） 300KΩ Input impedance dimension 82*183*573 weight safety *1 The voltage/current input is no less than 10% FS *2 The scope of read-back resistance is: （ 1/(1/R+(1/R)*0.01%+0.08),1/(1/R-(1/R)*0.01%-0.08) ） Copyright © Itech Electronic Co., Ltd.
  • Page 92 0. 1mA Accuracy ±(0.05%+0.05%FS) Range 600W Readback power Resolution 10mW Accuracy ±(0.2%+0.2%FS) Protection range ≒610W ≒13.2A ≒132A ≒82V ≒85℃ Specification ≒13.2/12A ≒132/120A Current（CC） Short-circuit Voltage（CV） ≒20mΩ Resistance（CR） 300KΩ Input impedance dimension 82*183*573 weight safety Copyright © Itech Electronic Co., Ltd.
  • Page 93 Range 0~3A 0~15A Readback current Resolution 0. 01mA 0.1mA Accuracy ±(0.05%+0.05%FS) Range 250W Readback power Resolution 10mW Accuracy ±(0.2%+0.2%FS) Protection range ≒260W ≒3.3A ≒16.5A ≒530V ≒85℃ Specification ≒3.3/3A ≒16.5/15A Current（CC） Short-circuit Voltage（CV） ≒260mΩ Resistance（CR） Copyright © Itech Electronic Co., Ltd.
  • Page 94 Readback voltage Resolution 1 mV 10 mV Accuracy ±(0.025%+0.025%FS) ±(0.025%+0.025%FS) Range 0~3A 0~20A Readback current Resolution 0. 01mA 0.1mA Accuracy ±(0.05%+0.05%FS) Range 300W Readback power Resolution 10mW Accuracy ±(0.2%+0.2%FS) Protection range ≒310W ≒3.3A ≒22A ≒530V Copyright © Itech Electronic Co., Ltd.
  • Page 95 0~18V 0~500V Range 1 mV 10 mV Readback voltage Resolution ±(0.025%+0.025%FS) ±(0.025%+0.025%FS) Accuracy 0~3A 0~30A Range Readback current Resolution 0. 01mA 0.1mA Accuracy ±(0.05%+0.05%FS) Range 500W Readback power Resolution 10mW Accuracy ±(0.2%+0.2%FS) Protection range Copyright © Itech Electronic Co., Ltd.
  • Page 96 10mW Resistance 16bit Voltage 0.1 mV 1 mV Read Back Current 0.1mA 0.1mA Resolution Power 10mW ±(0.05%+0.025%F Voltage ±(0.05%+0.025%FS) ±(0.1%+0.1%FS ±(0.05%+0.05%FS Current ±(0.05%+0.05%FS) Setup Accuracy Power 0.2%+0.2%FS Resistance 0.01%+0.08S 0.01%+0.0008S Read Back Voltage ±(0.025%+0.025%FS) Copyright © Itech Electronic Co., Ltd.
  • Page 97 Voltage ±(0.025%+0.025%FS) Stability-30min ±(0.1%+0.1%FS （％of Output Current ±(0.05%+0.05%FS) +Offset） Readback Voltage ±(0.025%+0.025%FS) Stability-8h ±(0.1%+0.1%FS （％of Output Current ±(0.05%+0.05%FS) +Offset） Remote Sense ≤2V Compensation Voltage Storage -20℃～70℃ Temperature 310W 310W Protective Function 0.99A 4.95A 49.5A Copyright © Itech Electronic Co., Ltd.
  • Page 98 Input leakage 0.06mA 0.2mA current Voltage 10mV Current 0.1mA 0.1mA Setup Resolution Power 10mW Resistance 16bit Voltage 0.1 mV 1 mV Read Back Current 0.1mA 0.1mA Resolution Power 10mW ±(0.05%+0.025%F Setup Accuracy Voltage ±(0.05%+0.025%FS) Copyright © Itech Electronic Co., Ltd.
  • Page 99 ±(0.1%+0.1%FS) +Offset） Setup ±(0.05%+0.025%F Voltage ±(0.05%+0.025%FS) stability-8h （％of Output ±(0.05%+0.05%FS ±(0.05%+0.05%FS Current ±(0.1%+0.1%FS) +Offset） Readback Voltage ±(0.025%+0.025%FS) Stability-30min （％of Output Current ±(0.1%+0.1%FS) ±(0.05%+0.05%FS) +Offset） Readback Voltage ±(0.025%+0.025%FS) Stability-8h （％of Output Current ±(0.1%+0.1%FS) ±(0.05%+0.05%FS) +Offset） Copyright © Itech Electronic Co., Ltd.
  • Page 100 10Ω～7500Ω Resistance Minimum ≒50mΩ ≒13mΩ Rated value resistance Min. operating 0.12V at 2.4A 0.15V at 12A 1.5V at 120A voltage Input leakage 0.06mA 0.3mA current Voltage 10mV Setup Current 0.1mA 10mA Resolution Power 10mW Copyright © Itech Electronic Co., Ltd.
  • Page 101 AC Parameters range Max.curre 0.3A Power ≥0.99 factor Setup ±(0.05%+0.025%F Voltage ±(0.05%+0.025%FS) Stability-30min （％of Output ±(0.1%+0.1%FS ±(0.05%+0.05%FS Current ±(0.05%+0.05%FS) +Offset） Setup ±(0.05%+0.025%F Voltage ±(0.05%+0.025%FS) stability-8h （％of Output ±(0.1%+0.1%FS ±(0.05%+0.05%FS Current ±(0.05%+0.05%FS) +Offset） Readback Voltage ±(0.025%+0.025%FS) Copyright © Itech Electronic Co., Ltd.
  • Page 102 *5. Minimum rise time: for 10% ~ 90% of the current rise time. Parameter Model: IT8732BP+ Voltage 0.1～60V 0.1～600V Current 0～0.3A 0～3A 0～20A Power 0～120W 0～300W 0.2Ω～10Ω 10Ω～7500Ω Rated value Resistance Minimum ≒500mΩ ≒180mΩ resistance Min. 0.15V at 0.3A 0.54V at 3A 3.6V at 20A operating Copyright © Itech Electronic Co., Ltd.
  • Page 103 Response Min. rise ≒10uS ≒10uS ≒10uS Time time Dynamic Frequency 0.001～20KHz Voltage 110V ±10% or range 220V ±10% Output frequency 50/60Hz Parameters range Max.curren 0.3A Voltage ±(0.02%+0.02%FS) ±(0.02%+0.02%FS) Setup Stability-30mi ±(0.05%+0.08%F ±(0.03%+0.03%F Current ±(0.03%+0.03%FS) Copyright © Itech Electronic Co., Ltd.
  • Page 104 *5. Minimum rise time: for 10% ~ 90% of the current rise time. *6 Min. step resolution: 5uS. Parameter Model: IT8733BP+ Voltage 0.1～60V 0.1～600V Current 0～0.3A 0～3A 0～30A Rated value Power 0～120W 0～500W 0.2Ω～10Ω 10Ω～7500Ω Resistance Copyright © Itech Electronic Co., Ltd.
  • Page 105 0.0001～0.2A/uS 0.001～2A/uS slope*4 Falling 0.0001～0.02A/uS 0.0001～0.2A/uS 0.001～2A/uS Transient slope*4 Response Min. rise ≒10uS ≒10uS ≒10uS Time time Dynamic 0.001～20KHz Frequency Voltage 110V ±10% or range 220V ±10% Output frequency 50/60Hz Parameters range Max.curren 0.3A Copyright © Itech Electronic Co., Ltd.
  • Page 106 *2.The scope of read-back resistance is (1/(1/R+(1/R)*0.01%+0.08),1/(1/R-(1/R)*0.01%-0.08)). *3.The voltage/current input is no less than 10%FS. *4.Ascending/descending slope: 10%-90% current ascending slope from 0 to maximum current. *5. Minimum rise time: for 10% ~ 90% of the current rise time. Copyright © Itech Electronic Co., Ltd.
  • Page 107 Dynamic response Falling slope 0.001～1.5A/uS 0.03A/uS 0.3A/uS time *4 ≒10uS ≒10uS ≒10uS Min. rise time *5 Dynamic Frequency 0.001～20KHz 110V ±10% or Voltage range 220V ±10% Output frequency AC Parameters 50/60Hz range Max.current 0.3A Copyright © Itech Electronic Co., Ltd.

  • Page 108: Supplementary Characteristics

    Storage capacity: 101 sets Suggested calibration frequency: one time each year. Cooling style: fan. Fans control temperature: Temperature 35°C 50°C 70°C 85°C Fans status The first grade The second grade The third grade OTP Copyright © Itech Electronic Co., Ltd.

  • Page 109: Chapter6 Remote Operation

    <Shift> + <System>key. For each case, the electronic load will send a maximum of five characters after hold-off is asserted by the controller. The electronic load is capable of receiving up to fifteen additional characters after it asserts hold-off. Copyright © Itech Electronic Co., Ltd.
  • Page 110 Communication setting Before communication operation, please make sure that the following parameters of electronic load match that of PC.  Baud rate ：9600(4800、9600、19200、38400、57600、115200). You can enter system menu through panel to set communication baud rate. Copyright © Itech Electronic Co., Ltd.

  • Page 111: Ether Net Interface

    The device is SR1 capable.  The device is RL1 capable.  The device is DT1 capable. NOTE When communicating with PC, you can just select one method of all the communication methods above. Copyright © Itech Electronic Co., Ltd.

  • Page 112: Appendix

    Specifications of Red and Black Test Lines ITECH provides you with optional red and black test cables, which individual sales and you can select for test. For specifications of ITECH test cables and maximum current values, refer to the table below.
  • Page 113 Contact Us Thanks for purchasing ITECH products. In case of any doubts, please contact us as follows: 1. Visit ITECH website: www.itechate.com. 2. Select the most convenient contact method for further information.

This manual is also suitable for:

It8700 seriesIt8700p series

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