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Summary of Contents for ITech IT6720
- Page 1 Digital-control IT6720 Series DC Power Supply User's Manual Model: IT6720/IT6721 Version: V3.0...
- Page 2 Notices Safety Notices Warranty © Itech Electronic, Co., Ltd. The materials contained in this 2025 document are provided "as is", No part of this manual may be subject change, reproduced in any form or by A CAUTION sign denotes a...
- Page 3 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.
- Page 4 If the user does not follow these precautions, ITECH will bear no responsibility arising there from. The power supply is provided with a three-core power cord during delivery ...
- Page 5 IT6720 Series User's Manual Environmental conditions The IT6720/IT6721 series power supplies are only permitted to be used indoors and in low condensation areas, the following table shows the general environmental requirements for this instrument. Environmental conditions Requirement Operating temperature 0°C - 40°C...
- Page 6 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 7 IT6720 Series User's Manual Compliance Information Complies with the essential requirements of the following applicable European Directives, and carries the CE marking accordingly: Electromagnetic Compatibility (EMC) Directive 2014/30/EU Low-Voltage Directive (Safety) 2014/35/EU Conforms with the following product standards: EMC Standard IEC 61326-1:2012/ EN 61326-1:2013 ¹²³...
- Page 8 IT6720 Series User's Manual Contents Quality Certification and Assurance ....................i Warranty service ..........................i Limitation of Warranty ........................i Safety signs ........................... i Safety Precautions ........................ii Environmental conditions ......................iii Regulation tag ..........................iii Waste electrical and electronic equipment (WEEE) directive .............iii Compliance Information .......................
- Page 9 1.2 Connecting the Power Cord Connect the standard accessory power cord to ensure that the power supply has been properly energized. Copyright © Itech Electronic Co., Ltd.
- Page 10 Acceptance and Installation Power Supply Input Requirements The IT6720/IT6721 power supply can also be operated at 110V ± 10%, but the output power of the power supply is halved. If full power output is required, please use 220V±10% voltage according to the specification.
- Page 11 Acceptance and Installation IT-E121 Communication Module The DB9 connector output on the rear panel of the IT6720/IT6721 power supply is TTL level; you can use the IT-E121 communication module and a standard RS232 extension cable to connect the DB9 connector of the power supply to the RS-232 connector of the computer for communication.
- Page 12 You cannot connect the DB9 communication interface of the power supply directly to the RS232 level of the PC using the standard RS232 cable, you must purchase the communication cable of ITECH to connect it. DB9（TTL）serial interface The electronic load can be connected to the RS232 interface via the DB9 plug on the rear panel via a level shifter circuit.
- Page 13 . Examples: When you select the output voltage as 60V, since the output power of the IT6720 is 100W, the maximum output current at this time is 100(W) / 60(V) = 1.66A; when you change the output voltage to 20V, the maximum output current value at this time is 100(W) / 20(V) = 5A;...
- Page 14 Preset multiple output voltages and currents: 4×100 groups IT6720 Series Selection Chart: Model Voltage Current Power IT6720 100W IT6721 180W 2.2 Front Panel Introduction IT6720 series power supply, front panel layout introduction. Copyright © Itech Electronic Co., Ltd.
- Page 15 Confirm that the machine has not been damaged during shipment, if so, please contact your supplier. Verify that the input AC voltage specification of the IT6720/IT6721 is in accordance with the power supply voltage in your country or region. Note: If you need to switch the input voltage, you can do it through the 110V/220V switch on the back of the machine.
- Page 16 At this time, the power output shutdown indicator will turn off, indicating that the power supply is in the output working state. Copyright © Itech Electronic Co., Ltd.
- Page 17 (Lock) key, the Lock indicator will light up, and all keys and knobs on the keypad will be locked except for the keys. Repeat the above steps to unlock the keypad. Overvoltage protection (OVP) setting Press the key and then the (Setup) key for about three seconds, at Copyright © Itech Electronic Co., Ltd.
- Page 18 NOTE If OVP and OCP values are set lower than the actual voltage/current values, it will cause power protection and output shutdown. The factory preset values of IT6720 are OVP=61V, OCP =5.1A; IT6721 OVP=61V, OCP=8.1A. Memory set value (P_ST) setting...
- Page 19 BEEP setting interface, then you can use knob to select ON/OFF. ON means there is sound when you press the keypad, OFF means there is no sound when you press the keypad. Press to confirm. Copyright © Itech Electronic Co., Ltd.
- Page 20 Press to confirm the selected group and end the Setup mode. The IT6720 and IT6721 allow customers to set up shortcut keys in groups of 100, each with four setting values, A/B/C/D. Setting Shortcuts...
- Page 21 AC Power Supply The AC power input of the IT6720 and IT6721 is 110V or 220V, 50/60 HZ. Before connecting the AC power supply and turning on the instrument, please check that the 110/220V changeover switch on the back of the instrument is in the correct...
- Page 22 If it is lit, the keyboard and knobs are locked. Lock To unlock: Press the Shift key on the keyboard, when the Shift indicator is lit, press (Lock) key again to unlock the keyboard and knobs. Copyright © Itech Electronic Co., Ltd.
- Page 23 Read Back Accuracy Voltage ≤0.05%+10mV (Within 12 months) (25 °C ± 5 °C) Current ≤0.1%+2mA (％of output+offset) Voltage ≤2mVrms Ripple (20Hz ~20MHz) Current ≤5mArms Dimension (mm) 88mm×175mm×282mm Weight(Net) 2.5kg Parameters IT6721 Output Rating Voltage 0~60V Copyright © Itech Electronic Co., Ltd.
- Page 24 (Within 12 months) (25 °C ± 5 °C) Current ≤0.3%+5mA (％of output+offset) Voltage ≤5mVrms Ripple (20Hz ~20MHz) Current ≤8mArms Dimension (mm) 88mm×175mm×282mm Weight (Net) 3.5kg These specifications are subject to change without prior notice. Copyright © Itech Electronic Co., Ltd.
- Page 25 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. Copyright © Itech Electronic Co., Ltd.
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