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ITech IT8500plus Series User Manual

Dc programmable electronic loads
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DC Programmable Electronic
Loads
IT8500plus Series
User Manual
Model:IT8511+/ IT8511A+/IT8511B+/IT8512+/IT8512A
+/IT8512B+/IT8512C+/IT8512H+/IT8513A+/IT8513B
+/IT8513C+ /IT8514C+/IT8514B+/IT8516C+
Version: 2.1

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  • Page 1 DC Programmable Electronic Loads IT8500plus Series User Manual Model:IT8511+/ IT8511A+/IT8511B+/IT8512+/IT8512A +/IT8512B+/IT8512C+/IT8512H+/IT8513A+/IT8513B +/IT8513C+ /IT8514C+/IT8514B+/IT8516C+ Version: 2.1...
  • Page 2 Notices Warranty Safety Notices © Itech Electronic, Co., Ltd. 2018 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: Limitation Of 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

    2002/96/EC Waste Electrical and Electronic Equipment (WEEE) Directive This product complies with the WEEE Directive (2002/96/EC) marking requirement. This affix product label indicates that you must not discard the electrical/electronic product in domestic household waste. Product Category Copyright © Itech Electronic Co., Ltd.
  • Page 6 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

    3.13 Protection Function ............................41 3.14 Current Monitoring (I Monitor) ........................42 3.15 Ripple Function ..............................42 Chapter4 Automatic Test Function ....................... 44 4.1 Introduction ............................... 44 4.2 Automatic Test Mode Switching ......................... 44 Copyright © Itech Electronic Co., Ltd.
  • Page 9 Specifications ................................51 Supplementary Characteristics ..........................65 Chapter6 Communication Interfaces ......................66 6.1 Communication Modules Introduction ......................66 6.2 Communication with PC ............................. 68 Appendix ................................70 Specifications of Red and Black Test Lines ....................... 70 Copyright © Itech Electronic Co., Ltd.

  • Page 10: Chapter1 Inspection And Installation

    Module load RS-232 interface connector computer communication. The DB9 interface connector of the RS232 RS232 IT-E121A changes from female to male, so that can Communication be directly connected to the standard LAN Module interface. Copyright © Itech Electronic Co., Ltd.
  • Page 11 IT-E123 use the communication module IT-E123 Communication and a standard RS485-RS232 conversion Module cable to connect the DB9 interface connector of the DC load and the RS-232 interface connector of computer for the communication. Copyright © Itech Electronic Co., Ltd.

  • Page 12: Instrument Size Introduction

    Please select appropriate space for installation based on the electronic load size. IT8500+ series electronic load different models are not the same size, the detail size of the electronic load is shown as below. IT8511+/IT8511A+/IT8511B+/IT8512+/IT8512B+/IT8512C+/IT8512H+ Model Detailed Dimension Drawing Copyright © Itech Electronic Co., Ltd.
  • Page 13 Inspection and Installation IT8513A+/IT8513C+ Model Detailed Dimension Drawing IT8513B+/IT8514B+/ IT8514C+ Model Detailed Dimension Drawing Copyright © Itech Electronic Co., Ltd.
  • Page 14 Inspection and Installation IT8516C+ Model Copyright © Itech Electronic Co., Ltd.

  • Page 15: Adjustment Of Load Handle

    The load handle may be adjusted based on three methods (as shown in icons below). Be sure that appropriate force is applied to adjust the load handle to appropriate position. Copyright © Itech Electronic Co., Ltd.

  • Page 16: Disassembly Of Load Handle

    To easily disassemble handle, align the locking mouth and locking device, which is between the handle and the instrument. Align the locking mouth, and pull out the handle towards two sides. NOTE Do not use too much force and mind your hands during disassembly of load handle. Copyright © Itech Electronic Co., Ltd.

  • Page 17: Rack Mounting

    Inspection and Installation 1.5 Rack Mounting IT8511+/IT8511A+/IT8511B+/IT8512+/IT8512A+/IT8512B+/IT8512C+/IT8512H +/IT8513A+/IT8513C+ loads can be installed on standard 19-inch rack. ITECH provides user with IT-E151/IT-E151A rack, as an optional mount kit. The detailed operation please refer to the User Manual of your mount kit.

  • Page 18: Connect The Device Under Test (Dut)

     Always use test cables provided by ITECH to connect the equipment. If test cables from other factories are used, please check that the test cable can withstand maximum current.
  • Page 19 Select ON, then the remote sense function has been set. Note: When not using the remote measurement function, press the OFF key to close the remote measurement mode. Refer the following diagram to connect test cables. Wiring Diagram for Remote Sensing: Copyright © Itech Electronic Co., Ltd.
  • Page 20 Inspection and Installation Note: Test cables and Sense cables should be as short as possible, and Sense cables should be twisted together. Copyright © Itech Electronic Co., Ltd.

  • Page 21: Chapter2 Quick Start

    List mode, which can simulate a variety of load state changes  Short circuit function  Remote sense function  Memory capacity to save/recall setting parameters: 100 registers  Intelligent fans  Build-in Buzzer as alarm signal  Power off memory function Copyright © Itech Electronic Co., Ltd.

  • Page 22: Front Panel Introduction

    Control the input state: On/Off ③ Compound key and the local switch key ⑥ Direction function ④ Number key: ⑦ Rotary knob Set the parameters value, achieve the ⑧ Input terminal menu’s function by key combination Copyright © Itech Electronic Co., Ltd.

  • Page 23: Front Panel Keys

    Local button is used to switch local and remote (Gray) mode. Power on/off button. (Gray-white) Enter the digits 0 to 9. Decimal point The escape button Select the constant current mode and set the input current value. Copyright © Itech Electronic Co., Ltd.

  • Page 24: Combination Keys

    Includes: voltage, current and power settings, and so on. [Shift]+[On/Off] (Lock) Key lock function 2.6 VFD Annunciators The load input is off. Error An error has occurred. Constant current mode Trig Waiting for the trigger signal. Copyright © Itech Electronic Co., Ltd.

  • Page 25: Rear Panel Introduction

    ⑥ 4 pin trigger and remote sensing connector ③ 3 pin IEC320 AC input connector IT8513A+/IT8513C+ Model ①Thermal window ④Current monitoring terminal ②Line voltage selection switch ⑤9-Pin serial port interface connector (110V/220V ) ⑥4 pin trigger and remote sensing connector Copyright © Itech Electronic Co., Ltd.

  • Page 26: Power-On Selftest

    Be sure to connect the main power socket to the power outlet of protective grounding. Do not use terminal board without protective grounding. Before operation, be sure that the power supply is well grounded. Copyright © Itech Electronic Co., Ltd.
  • Page 27 Check whether the fuse of electronic load is burned out. If yes, change fuse. Detailed steps:  Pull out power line and take out the fuse box at power line jack with a small screw driver. As shown below. Copyright © Itech Electronic Co., Ltd.
  • Page 28 IT8513C+ T1.25A 250V T2.5A 250V IT8514B+ T1.25A 250V T2.5A 250V IT8514C+ T1.25A 250V T2.5A 250V IT8516C+ T2.5A 250V T5A 250V  After replacement, install the fuse box back to original position, as shown below. Copyright © Itech Electronic Co., Ltd.

  • Page 29: Chapter3 Functions And Characteristics

    Select the function key CC, the load enters the constant current mode. In the constant current mode, the electronic load consumes a constant current regardless of whether the input voltage changes. The relationship between voltage and current is shown in the figure below. Copyright © Itech Electronic Co., Ltd.

  • Page 30: Constant Voltage Mode (Cv)

    In constant voltage mode, the electronic load will consume enough current to maintain the input voltage at the set voltage. Setting voltage Input voltage Input current CV mode Diagram 3-2 I-V curve in CV mode Copyright © Itech Electronic Co., Ltd.

  • Page 31: Constant Resistance Mode (Cr)

    Press [CR], and then press [Shift]+[CV](Setup) to enter into the parameters setting page. RANGE=7500.0Ω Set the maximum working resistance value, and press [Enter] to confirm. RANGE =2000Ω Set the maximum working voltage value, and then press [Esc] to exit the Copyright © Itech Electronic Co., Ltd.

  • Page 32: Constant Power Mode (Cw)

    [On/Off] button on the front panel is used to manually control input on or off.  [On/Off] button lighted indicates the load input is turned on, and the real-time voltage and current information about the current loop is displayed on the VFD screen. Copyright © Itech Electronic Co., Ltd.

  • Page 33: Key Lock Function

    Triggered from a serial bus command 5AH HOLD Receiving a command 9DH MEMORY Use with the Recall button to call up the stored parameters. MEMORY GROUP= 0 0: indicates1-10 groups; Copyright © Itech Electronic Co., Ltd.
  • Page 34 If SAV0 is selected, the input state at power-on of the load is the value of SAVE 0. >Trigger When using the transient and list function, you need to use the electronic load Copyright © Itech Electronic Co., Ltd.

  • Page 35: Config Menu (Config)

    Voltage range automatic switching V-RANGE function Enable voltage auto range function MEASURE Disable voltage auto range function FILTER Set the filter parameter FILTER COUNT = 2^14 Filter count set, ranges from 2 to 16. Copyright © Itech Electronic Co., Ltd.

  • Page 36: Trigger Function

    TRIG generate the trigger signal, and the low pulse is valid. A trigger-corresponding input can be used to change the set value (voltage, current, resistance, etc.) to toggle between set points in the transient trigger mode, or to generate pulses in the transient pulse mode. Copyright © Itech Electronic Co., Ltd.

  • Page 37: List Operation

    For example, when the DUT output voltage is 10V and the output current is 3A, after editing the sequence operation files under Constant Current (CC) mode, the steps for triggering sequence operation are as follows: Copyright © Itech Electronic Co., Ltd.
  • Page 38 Ensure that OFF lamp flicks. If not, press [Enter] to change the lamp from ON to OFF. Press key to select CALL. And press [Enter] for confirmation. Select edited file and press [Enter] for confirmation. RECALL LIST = 1 Copyright © Itech Electronic Co., Ltd.

  • Page 39: Test Function

    Press [Shift]+[2] (Tran), move key to select ON, press [Enter] to confirm. TRAN Press to select transient operation mode as CONTINUOUS (the indicator lamp Trig will be lighted). MODE CONTINUOUS PULSE TOGGLE Copyright © Itech Electronic Co., Ltd.
  • Page 40 B timing value. Then the load switches back to the A value and stays there until another trigger is received. Take CC mode as an example (other modes operate similarly). When the Copyright © Itech Electronic Co., Ltd.
  • Page 41 1A and 2A, the transient test parameters and steps are set as follows: Press [Shift]+[2] (Tran), move key to select ON, press [Enter] to confirm. TRAN Press to select transient operation mode as TOGGLE (the indicator lamp Trig will be lighted). Copyright © Itech Electronic Co., Ltd.

  • Page 42: Ocp Test Function

    END=2.0000A Set the cutoff current. OCP VOLT=2.000V Set the OCP voltage. MAX TRIP =1.5000A Upper limit of OCP value. MIN TRIP=0.9000A Lower limit of OCP value SAVE OCP FILE=1 Save OCP test file (1-10) Copyright © Itech Electronic Co., Ltd.

  • Page 43: Opp Test Function

    STEP =1W Set the step power. STEP DEL=1S Set delay time of each step. END =12W Set the cutoff power. OPP VOLT=7V Set the OPP voltage. MAX TRIP =6.5W Upper limit of OPP value. Copyright © Itech Electronic Co., Ltd.

  • Page 44: Battery Discharge Test

    The following describes the operation steps by taking a discharge current of 7 A, a cutoff voltage of 35 V, and a cutoff capacity of 11 AH as an example. Press [Shift]+ [5] (Battery), set current range, and then press [Enter]. 0.0000V 0.000A RANGE =30.000A Copyright © Itech Electronic Co., Ltd.
  • Page 45 Applicable to IT8511B+/IT8512+/IT8512B+/IT8512C+/IT8512H+/IT8514C+ models. The steps are as follows: In the BATTERY mode, press [Shift]+ [Enter] (Recall). 0.0000V 0.000A RECALL BATTERY 1 Press the number keys to select the existing BATT_TEST file and press [Enter]. Copyright © Itech Electronic Co., Ltd.

  • Page 46: Cr-Led Test Function

    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 47 [Enter] Set CR mode 1) Press [CR] key and set corresponding constant resistance. (Set CR=50Ω) 2) Press the key to save the settings. [Enter] Press [On/Off] key to turn on load input. Copyright © Itech Electronic Co., Ltd.

  • Page 48: Measurement Of Voltage Rise Time

    3.11 Saving and Recalling Settings We can save some often-used parameters in the non-volatile memory, including working mode, voltage/current value and so on. IT8500plus series provide 100 non-volatile registers. They are divided into 10 Memory groups: Group0-9.You can set it in the system menu.

  • Page 49: Von Function

    In Living mode, when power is applied to the DC load, the voltage must rise above VON setting before the load draws current from the source. If the voltage below VON setting on the load’s terminals, the load will turn off input. Copyright © Itech Electronic Co., Ltd.

  • Page 50: Protection Function

    3.13 Protection Function IT8500+ series electronic load supports the following protection function:  Over voltage protection (OVP)  Over current protection (OCP)  Over power protection (OPP)  Over temperature protection (OTP) Copyright © Itech Electronic Co., Ltd.

  • Page 51: Current Monitoring (I Monitor)

    3.15 Ripple Function IT8500+ series DC electronic loads have test ripple function. In the main interface by pressing the up and down keys, you can read the VPK, APK value Copyright © Itech Electronic Co., Ltd.
  • Page 52 Functions and Characteristics in the place where shows the power value. You can read ripple voltage and ripple current by sending instructions also. See in IT8500+ programming guide. Copyright © Itech Electronic Co., Ltd.

  • Page 53: Chapter4 Automatic Test Function

    (Delay), upper and lower limit value (Min & Max), trigger voltage (Start). The storage of test files under the two test modes is independent of each other, that is, file1 in two modes is stored in different storage spaces. Copyright © Itech Electronic Co., Ltd.

  • Page 54: Test Mode For It8500

    10. Set Tpf for the second step, if you want to delay 1S, press [1], and then press [Enter] to confirm. SEQ02 P/F =1S 11. Set the load voltage value and set it to 0 if not needed. AUTO START= 0.500V Copyright © Itech Electronic Co., Ltd.
  • Page 55 2A, the upper limit voltage value is 10V, the lower limit voltage value is 2V; the second step is edited to CV mode, voltage 3V, upper limit current value 5A, lower limit current value 0A. Save in the automatic test file 2. Copyright © Itech Electronic Co., Ltd.
  • Page 56 The parameter settings are complete. 10.0000V 0.000A 0.00W V=3V Press [Shift] + [4] (Save) to enter the save settings interface. Press numeric keys [1] and [2] to save the current step as the second step of Program 2. Copyright © Itech Electronic Co., Ltd.

  • Page 57: Test Mode For It8500

    Set the lower limit of voltage, press [Enter] to confirm. LOW=0.000V The parameter settings are complete. 10.0000V 0.000A 0.00W R=2.000Ω 4.2.2 Test Mode for IT8500 Press [Shift] + [6] (Prog) to set the maximum current value and press [Enter] to confirm. MAX CURR=30.00A Copyright © Itech Electronic Co., Ltd.
  • Page 58 In the process of editing the automatic test file, if an editing error occurs, you can press the up arrow key to return to the previous step to make changes without exiting the entire editing interface of the test file. Copyright © Itech Electronic Co., Ltd.
  • Page 59 The automatic test step will be displayed on the VFD and FAULT or PASS will be displayed after the test is over. 0.0000V 0.000A P01-01 2.100A Note Press [Shift] + [0] (Pause) to stop running the automatic test. Press to continue testing. Copyright © Itech Electronic Co., Ltd.

  • Page 60: Chapter5 Specifications

    0~3A 0~30A Readback Resolution 0.1mA current Accuracy ±(0.05%+0.05%FS) Range 150W Readback Resolution 10mW power Accuracy ±(0.1%+0.2%FS) Protection range ≒160W Protection ≒3.3A ≒33A Protection ≒125V Protection ≒85℃ Protection Specification ≒3.3/3A ≒33/30A Short Current( CC ) Copyright © Itech Electronic Co., Ltd.
  • Page 61 0.1 mV 1 mV voltage Accuracy ±(0.025%+0.025%FS) ±(0.025%+0.025%FS) Range 0~3A 0~30A Readback Resolution 0.1mA current Accuracy ±(0.05%+0.05%FS) Range 300W Readback Resolution 10mW power Accuracy ±(0.1%+0.2%FS) Protection range ≒320W Protection ≒3.3A ≒33A Protection ≒125V Protection Copyright © Itech Electronic Co., Ltd.
  • Page 62 ± (0.025%+0. ± (0.025%+0.025% Accuracy ± (0.025%+0.025%FS) ± (0.025%+0.025%FS) 025%FS) Range 0~3A 0~30A 0~3A 0~30A Readback Resolution 0.1mA 0.1mA current Accuracy ±(0.05%+0.05%FS) ±(0.05%+0.05%FS) Range 150W 300W Readback Resolution 10mW 10mW power Accuracy ±(0.1%+0.1%FS) ±(0.1%+0.1%FS) Copyright © Itech Electronic Co., Ltd.
  • Page 63 Rising/Falling 0.0001~0.2A/uS 0.001~0.8A/uS slope Minimum rise ≒10uS ≒10uS time Measuring range Range 0~50V 0~500V Readback Resolution 1 mV 10 mV voltage Accuracy ±(0.025%+0.025%FS) ±(0.025%+0.025%FS) Range 0~3A 0~10A Readback Resolution 0.1mA current Accuracy ±(0.05%+0.05%FS) Copyright © Itech Electronic Co., Ltd.
  • Page 64 0.1%+0.2%FS Dynamic mode CC mode T1&T2 20uS~3600S /Res:1 uS Dynamic Accuracy 2uS±100ppm mode Rising/Falling 0.0001~0.2A/uS 0.001~0.8A/uS slope Minimum rise ≒10uS ≒10uS time Measuring range Range 0~50V 0~500V Readback voltage Resolution 1 mV 10 mV Copyright © Itech Electronic Co., Ltd.
  • Page 65 Range 0.05Ω~10Ω 10Ω~7.5KΩ CR mode Resolution 16bit Accuracy 0.01%+0.08S 0.01%+0.0008S Range 300W CP mode Resolution 10mW Accuracy ±(0.1%+0.3%FS) Dynamic mode CC mode Dynamic T1&T2 20uS~3600S /Res:1 uS mode Accuracy 2uS±100ppm Rising/Falling 0.0001~0.3A/uS 0.001~3A/uS slope Copyright © Itech Electronic Co., Ltd.
  • Page 66 10mV Accuracy ±(0.05%+0.05%FS) ±(0.05%+0.05%FS) Range 0~1A 0~5A Resolution 0.1mA CC mode Accuracy ±(0.05%+0.1%FS) ±(0.05%+0.05%FS) Range 2Ω~10Ω 10Ω~7.5KΩ CR mode Resolution 16bit Accuracy 0.01%+0.08S 0.01%+0.0008S Range 300W CP mode Resolution 10mW Accuracy 0.2%+0.2%FS Dynamic mode Copyright © Itech Electronic Co., Ltd.
  • Page 67 0.25V at 6A 2.5V at 60A value Range 0.1~18V 0.1~150V CV mode Resolution 10mV Accuracy ±(0.05%+0.02%FS) ±(0.05%+0.025%FS) Range 0~6A 0~60A Resolution 0.1mA CC mode Accuracy ±(0.05%+0.05%FS) ±(0.05%+0.05%FS) Range 0.1Ω~10Ω 10Ω~7.5KΩ CR mode Resolution 16bit Copyright © Itech Electronic Co., Ltd.
  • Page 68 0~3A 0~30A Rated value Input power 600W ( 0~40 ℃) Minimum operation 0.3V at 3A 3V at 30A value Range 0.1~50V 0.1~500V CV mode Resolution 10mV Accuracy ±(0.05%+0.05%FS) ±(0.05%+0.05%FS) CC mode Range 0~3A 0~30A Copyright © Itech Electronic Co., Ltd.
  • Page 69 *4 Ascending/descending slope: 10%-90% current ascending slope from 0 to maximum current. *5 Minimum rise time: 10%-90% current rise time Model IT8513C+ Input voltage 0~120V Rated value Input current 0~12A 0~120A ( 0~40 ℃) Input power 600W Copyright © Itech Electronic Co., Ltd.
  • Page 70 *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)) *3 The voltage/current input is no less than 10% FS Ascending/descending slope: 10%-90% current ascending slope from 0 to maximum current. Copyright © Itech Electronic Co., Ltd.
  • Page 71 Current( CC ) Voltage( CV ) Short Resistance( CR ≒8mΩ ≒8mΩ Input 150KΩ Impendance Dimension 436.5mm*88.2mm*463.5mm *1 The voltage/current input is no less than 10% FS *2 The scope of read-back resistance is: (1/(1/R+(1/R)*0.02%+0.08),1/(1/R-(1/R)*0.02%-0.08)) Copyright © Itech Electronic Co., Ltd.
  • Page 72 ±(0.05%+0.05%FS) Range 1500W Readback Resolution 10mW power Accuracy ±(0.2%+0.2%FS) Protection range ≒1550W Protection ≒6.7A ≒67A Protection ≒530V Protection ≒85℃ Protection Specification ≒6.7/6A ≒67/60A Current( CC ) Short Voltage( CV ) Resistance( C ≒50mΩ ≒50mΩ Copyright © Itech Electronic Co., Ltd.
  • Page 73 0.1 mV voltage Accuracy ±(0.025%+0.025%FS) ±(0.025%+0.025%FS) Range 0~24A 0~240A Readback Resolution 10mA current Accuracy ±(0.1%+0.1%FS) Range 3000W Readback Resolution 10mW power Accuracy ±(0.2%+0.2%FS) Protection range ≒3000W Protection ≒26A ≒260A Protection ≒125V Protection ≒85℃ Protection Specification Copyright © Itech Electronic Co., Ltd.

  • Page 74: Supplementary Characteristics

    Option Opt.2: 110V ±10% 50Hz/60Hz  Cooling type Intelligent fans  Fans working principle: Fans running speed is determined by radiator temperature.When temperature reaches 40℃,fans start to work and intelligently adjust its speed with temperature variation. Copyright © Itech Electronic Co., Ltd.

  • Page 75: Chapter6 Communication Interfaces

    IT-E121A is derived on the basis of IT-E121, the main difference between them is that the DB9 interface connector of the RS232 changes from female to male, so that can be directly connected to the standard LAN interface. IT-E121A communication cable Copyright © Itech Electronic Co., Ltd.
  • Page 76 (download from http://www.itech.sh/support/Down-3.htm?model=IT-E122%20%E5%85%89%E 9%9A%94%E7%A6%BB%E9%80%9A%E8%AE%AF%E6%8E%A5%E5%8F %A3%E9%A9%B1%E5%8A%A8 or contact ITECH agent). The device manager of PC will display ‘Prolific USB-to-Serial COM Port’ after installing. IT-E123 Communication Module The DB9 interface connector on the rear panel of the DC load is TTL voltage level;...

  • Page 77: Communication With Pc

    IT8513B+/IT8514B+/IT8514C+/IT8516C+ electronic load has a DB9 interface on rear panel. Connect E-load and computer by cable of COM ends (DB9). Composite key [Shift] + [8] on front board can be used to enter system menu for activation. Copyright © Itech Electronic Co., Ltd.
  • Page 78 (download from http://www.itech.sh/support/Down-3.htm?model=IT-E122%20%E5%85%89%E 9%9A%94%E7%A6%BB%E9%80%9A%E8%AE%AF%E6%8E%A5%E5%8F %A3%E9%A9%B1%E5%8A%A8 or contact ITECH agent). The device manager of PC will display ‘Prolific USB-to-Serial COM Port’ after installing. Notes: Only IT8513B+/IT8514B+/IT8514C+/IT8516C+ models have the USB communication interface. After the driver is installed successfully, use USB line to connect in communication.

  • Page 79: 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 80 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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