USER'S GUIDE

WARNING

Safety Regulations

To avoid electrical shock, do not open the cabinet. Refer servicing to qualified personnel only.

To avoid injuries, always disconnect power, discharge circuits, and remove external voltage sources before touching components.

KEEP AWAY FROM LIVE CIRCUITS.

ITECH cannot accept responsibility for any direct or indirect financial damage or loss of profit that might occur when using the power supply.

The instrument chassis and cover must be connected to an electrical ground.

Certification

ITECH certifies that this product met its published specifications at time of shipment from the factory.

Notice

The information contained in this document is subject to change without notice.

Warranty

This hardware product is warranted against defects in material and workmanship for a period of ONE year from date of delivery. The IT6720 power supply, for use with a hardware product and when properly installed on that hardware product, is warranted not to fail to execute its programming instructions due to defects in material and workmanship for a period of 90 days from date of delivery. During the warranty period, ITECH will either repair or replace products which prove to be defective. ITECH does not warranty that the operation of the software firmware or hardware shall be uninterrupted or error free.

For warranty service, with the exception of warranty options, this product must be returned to a service facility designated by ITECH. Customer shall prepay shipping charges (and shall pay all duty and taxes) for products returned to ITECH for warranty service. ITECH shall pay for return of products to Customer.

Limitation of Warranty

The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by the customer, customer-supplied software or interfacing, unauthorized modification or misuse, operation outside of the environmental specifications for the product, or improper site preparation and maintenance. Product number or serial number has been altered, deleted, removed, or were unable to identify. Damage from accident, including but not limited to lightning, water, fire, abuse, or negligence.

Compliance Statements

Disposal of Old Electrical & Electronic Equipment

(Applicable in the European Union and other European countries with separate collection systems)

The ITECH product you have purchased is subject to Directive 2002/96/EC of the European Parliament and the Council of the European Union on waste electrical and electronic equipment (WEEE). In jurisdictions adopting that Directive, it is marked as being put on the market after August 13, 2005, and should not be disposed of as unsorted municipal waste. Please utilize your local WEEE collection facilities for the disposition of this product and otherwise observe all applicable requirements.

[WEEE recycling symbol]

Safety Symbols

? Connect it to safety earth ground using the wire recommended in the user's manual.

⚠️ High voltage danger

ⓘ The symbol on an instrument indicates that the user should refer to the operating instructions located in the manual.

About IT6720

With its wide voltage and current range, the IT6720 digital DC power supplies are applied in many fields.

With a maximum power of 100W and output adjustable up to 60V/5A, auto control voltage/current slew rate, and power rate up to three times faster than other similar products, a single unit can replace three models (60V*1.6A / 32V*3A / 20V*5A), reducing your repeat investment.

Example

When you set the output voltage as 60V, because the max power of IT6720 is 100W, the max output current is 100W/60V = 1.6A.

When you change the output voltage to 30V, the output current is 100W/30V = 3.2A.

Calculate according to the above way: when the output voltage is 20V, the output current should be 5A. However, as the max rating current of IT6720 is 8A, the final max output current is 5A.

Function

• Fully digital control
• High resolution 10mV/1mA in Full range
• Low ripple and noise
• Bright and easy to read display (LED)
• Constant current and constant voltage output
• High reliability OVP/OCP/OTP protection
• Output on/off control
• Best performance/price ratio
• Storage for 4*100 preset voltage and current output

Panel Layout

Controls and Indicators:

• Voltage Value: Displays the current voltage setting.
• Current Value: Displays the current current setting.
• Memory Buttons (A, B, C, D): Used for saving and recalling presets.
• Memory save [Shift]: Activates memory save function.
• Left arrow + Memory A Button: Corresponds to Step A + Memory A.
• Keyboard [Shift]: Activates secondary functions.
• Enter + Memory C Button: Corresponds to Step C + Memory C.
• Output ON/OFF Button: Toggles the output state.
• Air flow input: Vents for cooling.
• Main Power ON/OFF: Master power switch.
• Rotary Encoder: Adjusts voltage and current values.
• [Shift] Button: Accesses secondary functions.
• Voltage setup Indicator: Shows when voltage is being set.
• CC mode Indicator: Indicates Constant Current mode.
• CV mode Indicator: Indicates Constant Voltage mode.
• OCP Indicator: Over Current Protection indicator.
• OVP Indicator: Over Voltage Protection indicator.
• Memory mode Indicator: Shows when memory functions are active.
• Keyboard Lock Indicator: Indicates when the keypad is locked.
• Shift Indicator: Shows when the Shift key is active.
• Output OFF Indicator: Shows when the output is disabled.
• Right arrow + Memory B Button: Corresponds to Step B + Memory B.
• Function Setup [Shift]: Accesses function setup menu.
• Set V and I value + Memory D: Corresponds to Step D + Memory D.
• Setup Display [Shift]: Toggles display settings.
• Output +: Positive output terminal.
• Output -: Negative output terminal.
• Ground: Earth ground terminal.

Quick Start

Check out

Confirm whether the power supply has been destroyed in transportation. If there is any flaw, please contact the vendor.

Confirm whether the AC input voltage of IT6720 complies with the standards of your country or region.

Note: If switching input voltage, operate through the back panel switch (110V/220V).

After the checks above, power on by pressing the [Main Power ON/OFF] button.

Setting the voltage

Press the [DV/A] button to light up the voltage setup indicator [B]. This means the IT6720 is in voltage set mode.

Press the [A] or [B] button to light up the voltage setup indicator [B]. Now the voltage will rise/decline 1V once you rotate the rotary knob. Set the voltage to 12V.

Setting the current

Press the [DV/A] button to light up the current setup indicator [A]. The IT6720 is in current set mode.

Press the [A] or [B] button to adjust the setup indicator to [A]. Now the current will rise/decline 1V once you rotate the rotary knob. Set the current to 4A.

Enable output

Press the [On/Off] button to enable the IT6720 output. The voltage and current settings will blink for three seconds, and after that, the display value will change from the set value to the actual measured voltage and current value.

The 'Power off' lights will be turned off, which means the power is in output state.

Press [On/Off] again to shut the power supply's output.

Step value for Cursor Position

Check the set voltage and current value

The power supply usually displays the actual voltage and current values. To check the preset voltage and current values, press the [Shift] key twice. The settings will be displayed for three seconds.

Key lock function

This function prevents error operations by unauthorized persons. Press [Shift], after the [Shift] indicator is lit, press [Lock]. The [Lock] indicator will be lit, meaning all keys on the panel except [Shift] and [On/Off] are locked. Repeat the operation to disable key lock function.

OVP function

Press [Shift], and then press [DV/A] for three seconds. The panel will display 'OVP'.

Use the [A], [B] buttons and the rotary knob to set the OVP value.

OCP function

Press [DV/A] to enter into OCP setting interface after setting the OVP value. Use the [A], [B] buttons and the rotary knob to set the OCP value.

Note: If the OVP and OCP settings are lower than the actual voltage/current value, the output of the power supply will be turned off. The default settings of IT6720 are OVP=61V, OCP=5.1A.

Key sound (BEEP)

Press [DV/A] to enter the BEEP setting interface after finishing the OCP setting. Select the ON/OFF state with the rotary knob. 'ON' indicates key sound is active; 'OFF' means no sound.

Power address (ADD)

Press [DV/A] to enter the ADD setting interface after finishing the BEEP setting. Select the address using [A], [B] buttons. ADD range: 0~30. Press [DV/A] to confirm.

Store group setting (GRP)

Press [DV/A] to enter into GRP interface after setting the OCP value. Use [A], [B] buttons to select the store group. IT6720 allows customers to store 100 groups with A/B/C/D four set values for every group.

Press [DV/A] to confirm the chosen group and end the setup mode.

Store operation

In the normal working mode, set the voltage/current value to be stored. Press [Shift] and [A]. The cursor indicators [A], [B], [C], [D] will blink together. Press any key in [A], [B], [C], [D], [DV/A] to save it.

Recall operation

Press [Shift] and [B]. The indicator [Prog] will be lit, meaning the IT6720 is working in shortcuts mode. Press any key in [A], [B], [C], [D], [DV/A] to recall the preset voltage/current value which has been stored.

When the power supply is on recall operation, you can recall parameters from the store group. Press any key of [A], [B], [C], [D], [DV/A] to recall the stored parameter.

When the power supply is on recall operation, [A], [B], [C], [D], [DV/A] are disabled and can only be used with the [Shift] key. Press [Shift] and then press [B] to exit recall function.

Faulty disposal

If the outputs is disabled:

1. Check whether voltage and current settings are zero. If so, reset voltage and current value.
2. Check whether the indicator [OFF] is lit on. If so, press [On/Off] to enable the outputs.
3. Check whether the indicators [OVP], [OCP] are lit on. If so, please reset according to the mentioned OVP/OCP settings.

If the keypad is disabled

Check whether the indicator [Lock] is lit on. If so, unlock the keypads as described in the Key lock function section.

Specifications

Contact Information

ITECH Electronic CO,.LTD

China
TEL: 025-52415098
FAX: 025-52415268
NanJing City, 210012, Jiangsu Province, China

Europe
TEL: 477-590101
FAX: 477-572323
32, rue Edouard Martel
42100 - St Etienne France

USA
TEL: 714-9219095
FAX: 714-9216422
22820 Savi Ranch Parkway
Yorba Linda, CA 92887 U.S.A.

South Korea
TEL: 285-20680
FAX: 285-20684
#153-783,Rm601,ByuckSan,
GaSan-Dong, Seoul, Korea