ITech IT6835A, IT6832A, IT6831A, IT6833A, IT6861A User Manual

DC Programmable Power

Supply

Series IT6800A/B User’s Manual

Model: IT6831A/IT6832A/IT6833A/IT6835A/IT6861A

/IT6862A/IT6863A/IT6872A/IT6873A/IT6874A /IT6832B/IT6833B/IT6835B/IT6861B/IT6862B /IT6863B/IT6872B /IT6873B/IT6874B

Version:3.1

Notices

© Itech Electronic, Co., Ltd. 2018 No part of this manual may be reproduced in any form or by any means (including electronic storage and retrieval or translation into a foreign language) without prior permission and written consent from Itech Electronic, Co., Ltd. as governed by international copyright laws.

Manual Part Number

IT6800A/B-402187

Revision

Third Edition: March 27, 2018

Itech Electronic, Co., Ltd.

Trademarks

Pentium is U.S. registered trademarks of Intel Corporation.

Microsoft, Visual Studio, Windows and MS Windows are registered trademarks of Microsoft Corporation in the United States and/or other countries and regions.

Warranty

The materials contained in this document are provided “as is”, and is subject to change, without prior notice, in future editions. Further, to the maximum extent permitted by applicable laws, ITECH disclaims all warrants, either express or implied, with regard to this manual and any information contained herein, including but not limited to the implied warranties of merchantability and fitness for a particular purpose. ITECH shall not be held liable for errors or for incidental or indirect damages in connection with the furnishing, use or application of this document or of any information contained herein. Should ITECH and the user enter into a separate written agreement with warranty terms covering the materials in this document that conflict with these terms, the warranty terms in the separate agreement shall prevail.

Technology Licenses

The hardware and/or software described herein are furnished under a license and may be used or copied only in accordance with the terms of such license.

Restricted Rights Legend

Restricted permissions of the U.S. government. Permissions for software and technical data which are authorized to the U.S. Government only include those for custom provision to end users. ITECH follows FAR 12.211 (technical data), 12.212 (computer software). DFARS 252.227-7015 (technical data--commercial products) for national defense and DFARS 227.7202-3 (permissions for commercial computer software or computer software documents) while providing the customized business licenses of software and technical data.

Safety Notices

A CAUTION sign denotes a hazard. It calls attention to an operating procedure or practice that, if not correctly performed or adhered to, could result in damage to the product or loss of important data. Do not proceed beyond a CAUTION sign until the indicated conditions are fully understood and met.

A WARNING sign denotes a hazard. It calls attention to an

operating procedure or practice that, if not correctly performed or adhered to, could result in personal injury or death. Do not proceed beyond a WARNING sign until the indicated conditions are fully understood and met.

NOTE

A NOTE sign denotes important hint. It calls attention to tips or supplementary information that is essential for users to refer to.

IT6800A/B User Manual

Quality Certification and Assurance

We certify that series IT6800A/B power supply meets all the published specifications at time of shipment from the factory.

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).

For warranty service or repair, the product must be returned to a service center designated by ITECH.

 The product returned to ITECH for warranty service must be shipped

PREPAID. And ITECH will pay for return of the product to customer.

 If the product is returned to ITECH for warranty service from overseas, all

the freights, duties and other taxes shall be on the account of customer.

Limitation of Warranty

This Warranty will be rendered invalid in case of the following:  Damage caused by circuit installed by customer or using customer own

products or accessories;

 Modified or repaired by customer without authorization;  Damage caused by circuit installed by customer or not operating our

products under designated environment;

 The product model or serial number is altered, deleted, removed or made

illegible by customer;

 Damaged as a result of accidents, including but not limited to lightning,

moisture, fire, improper use or negligence.

Safety Symbols

Direct current

ON (power on)

Alternating current

OFF (power off)

Both direct and alternating current

Power-on state

Protective conductor terminal

Power-off state

Earth (ground) terminal

Reference terminal

Caution, risk of electric shock

Positive terminal

Warning, risk of danger (refer to this manual for specific Warning or Caution information)

Negative terminal

Frame or chassis terminal

-

IT6800A/B User Manual

Safety Precautions

The following safety precautions must be observed during all phases of operation of this instrument. 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.

 Do not use the instrument if it is damaged. Before operation, check the

casing to see whether it cracks. Do not operate the instrument in the presence of inflammable gasses, vapors or dusts.

 The power supply is provided with a three-core power line during delivery

and should be connected to a three-core junction box. Before operation, be sure that the instrument is well grounded.

 Make sure to use the power cord supplied by ITECH.  Check all marks on the instrument before connecting the instrument to

power supply.

 Use electric wires of appropriate load. All loading wires should be capable

of bearing maximum short-circuit current of power supply without overheating. If there are multiple electronic loads, each pair of the power cord must be capable of bearing the full-loaded rated short-circuit output current

 Ensure the voltage fluctuation of mains supply is less than 10% of the

working voltage range in order to reduce risks of fire and electric shock.

 Do not install alternative parts on the instrument or perform any

unauthorized modification.

 Do not use the instrument if the detachable cover is removed or loosen.  To prevent the possibility of accidental injuries, be sure to use the power

adapter supplied by the manufacturer only.

 We do not accept responsibility for any direct or indirect financial damage

or loss of profit that might occur when using the instrument.

 This instrument is used for industrial purposes, Do not apply this product to

IT power supply system.

 Never use the instrument with a life-support system or any other equipment

subject to safety requirements.

 Failure to use the instrument as directed by the manufacturer may render

its protective features void.

 Always clean the casing with a dry cloth. Do not clean the internals.  Make sure the vent hole is always unblocked.

IT6800A/B User Manual

Environmental Conditions

The instrument is designed for indoor use and an area with low condensation. The table below shows the general environmental requirements for the instrument.

Environmental Conditions

Requirements

Operating temperature

0°C to 40°C

Operating humidity

20%-80% (non-condensation)

Storage temperature

-20°C to 70 °C

Altitude

Operating up to 2,000 meters

Pollution degree

Pollution degree 2

Installation category

II

Note

To make accurate measurements, allow the instrument to warm up for 30 min before operation.

Regulatory Markings

The CE mark indicates that the product complies with all the relevant European legal directives. The specific year (if any) affixed refers to the year when the design was approved.

The instrument complies with the WEEE Directive (2002/96/EC) marking requirement. This affixed product label indicates that you must not discard the electrical/electronic product in domestic household waste.

This symbol indicates the time period during which no hazardous or toxic substances are expected to leak or deteriorate during normal use. The expected service life of the product is 10 years. The product can be used safely during the 10-year Environment Friendly Use Period (EFUP). Upon expiration of the EFUP, the product must be immediately recycled.

Waste Electrical and Electronic Equipment (WEEE) Directive

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 With reference to the equipment classifications described in the Annex I of the WEEE Directive, this instrument is classified as a

IT6800A/B User Manual

“Monitoring and Control Instrument”. To return this unwanted instrument, contact your nearest ITECH office.

IT6800A/B User 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

Reference Standards

CISPR 11:2009+A1:2010/ EN 55011:2009+A1:2010 (Group 1, Class A)

IEC 61000-4-2:2008/ EN 61000-4-2:2009

IEC 61000-4-3:2006+A1:2007+A2:2010/ EN 61000-4-3:2006+A1:2008+A2:2010

IEC 61000-4-4:2004+A1:2010/ EN 61000-4-4:2004+A1:2010

IEC 61000-4-5:2005/ EN 61000-4-5:2006

IEC 61000-4-6:2008/ EN 61000-4-6:2009

IEC 61000-4-11:2004/ EN 61000-4-11:2004

1. The product is intended for use in non-residential/non-domestic environments. Use of the product in residential/domestic environments may cause electromagnetic interference.

2. Connection of the instrument to a test object may produce radiations beyond the specified limit.

3. 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

IT6800A/B User Manual

Content

DC Programmable Power Supply .............................................................................................................. 1

Quality Certification and Assurance .......................................................................................................... 1

Warranty .................................................................................................................................................... 1

Limitation of Warranty ................................................................................................................................ 1

Safety Symbols .......................................................................................................................................... 1

Safety Precautions .................................................................................................................................... 2

Environmental Conditions .......................................................................................................................... 3

Regulatory Markings .................................................................................................................................. 3

Waste Electrical and Electronic Equipment (WEEE) Directive .................................................................. 3

Compliance Information ............................................................................................................................. 5

Chapter1 Inspection and Installation .................................................................................................. 1

1.1 Verifying the Shipment ......................................................................................................................... 1

1.2 Instrument Size Introduction ................................................................................................................ 1

1.3 Adjustment of Handle .......................................................................................................................... 3

1.4 Disassembly of Handle ........................................................................................................................ 4

1.5 Rack Mounting ..................................................................................................................................... 5

1.6 Connecting the Power Cord ................................................................................................................ 5

Chapter2 Quick Start ............................................................................................................................ 6

2.1 Brief Introduction ................................................................................................................................. 6

2.2 Front Panel Introduction ...................................................................................................................... 7

2.3 Keypad introduction ............................................................................................................................. 7

2.4 VFD Description .................................................................................................................................. 8

2.5 Rear Panel Introduction ....................................................................................................................... 9

2.6 Power-on Selftest .............................................................................................................................. 10

2.7 Output Verification ............................................................................................................................. 12

Chapter3 Functions and Characteristics .......................................................................................... 14

3.1 Local Mode/Remote Mode ................................................................................................................ 14

3.2 Dual-range switch(IT6860A/B/IT6870A/B） ...................................................................................... 14

3.3 Voltage setting ................................................................................................................................... 14

3.4 Current setting ................................................................................................................................... 15

3.5 Output on/off ...................................................................................................................................... 15

3.6 switch the actual/setting value display .............................................................................................. 15

3.7 CC/CV mode ..................................................................................................................................... 15

3.8 Save/Recall ....................................................................................................................................... 16

3.9 Trigger operation ............................................................................................................................... 16

3.10 Menu Operation ............................................................................................................................... 16

3.11 OVP Function ................................................................................................................................... 24

3.12 KEY LOCK ....................................................................................................................................... 24

3.13 Remote Sense Function .................................................................................................................. 24

Chapter4 Remote Operation .............................................................................................................. 26

4.1 RS232 interface ................................................................................................................................. 26

4.2 USB interface .................................................................................................................................... 27

4.3 GPIB interface (Only for IT6800B series) .......................................................................................... 28

Chapter5 Specifications ..................................................................................................................... 29

5.1 Specifications .................................................................................................................................... 29

5.2 Supplementary Characteristics ......................................................................................................... 40

Appendix .................................................................................................................................................... 41

Specifications of Red and Black Test Lines ............................................................................................. 41

No output ................................................................................................................................................. 41

How to avoid it couldn’t start when test battery ....................................................................................... 41

Inspection and Installation

Chapter1 Inspection and Installation

1.1 Verifying the Shipment

Unpack the box and check the contents before operating the instrument. If wrong items have been delivered, if items are missing, or if there is a defect with the appearance of the items, contact the dealer from which you purchased the instrument immediately. The package contents include:

Checklist of Package Contents

Item

Qty.

Model

Remarks

Power Supply

x1

IT6800A/B Series

The IT6800A/B series include: IT6831A/IT6832A/IT6833A/IT683 5A/IT6861A/IT6862A/IT6863A/IT6 872A/IT6873A/IT6874A/IT6832B/I T6833B/IT6835B/IT6861B/IT6862 B/IT6863B/IT6872B/IT6873B/IT68 74B

Power cord

x1

IT-E171/IT-E172 /IT-E173/IT-E17 4

User may select an appropriate power cord that matches the specifications of power socket used in the area. See the Section Connecting the Power Cord for details.

CD

x1

-

It contains IT6800A/B power supply User’s Manual, Programming Guide and other user documentations.

Ex-factory Test Report

x1

-

It is the test report of the instrument before delivery.

NOTE

Upon verification of the shipment, keep the package and relevant contents thereof in a safe place. When returning the instrument for warranty service or repair, the specified packing requirements shall be met.

1.2 Instrument Size Introduction

The instrument should be installed at well-ventilated and rational-sized space. Please select appropriate space for installation based on the power supply size.

IT6800A/B series power supply different models are the same size, the detail size

of the power supply are shown as below. (Take the example of IT6862A)

Inspection and Installation

Dimension: Width: 255.3mm Height: 108.7mm Depth: 374.4mm

Detailed Dimension Drawing

Inspection and Installation

1.3 Adjustment of Handle

IT6800A/B series power supply are equipped with a handle for user to easily carry and place it.

The power supply handle may be adjusted based on three methods (as shown in icons below). Be sure that appropriate force is applied to adjust the power supply handle to appropriate position. (Take the example of IT6862A)

Horizontal placement

Place the instrument on the desk horizontally.

Adjustment

Adjust the power supply handle to the state of rotation.

Adjust the power supply handle to appropriate position.

Inspection and Installation

Place the instrument on the desk.

1.4 Disassembly of Handle

Please disassemble the handle before installing equipment on the support. Disassembly steps (take the example of IT6862A):

1. Align the locking mouth, and pull out the handle towards two sides.

2. Rotate the handle to the appropriate position.

NOTE

Do not use too much force and mind your hands during disassembly of power supply handle

Inspection and Installation

3. .Adjust the handle to the position as shown as below.

NOTE

To easily disassemble handle, align the locking mouth and locking device, which is between the handle and the instrument

1.5 Rack Mounting

This instrument 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.

1.6 Connecting the Power Cord

Connect the power cord after checking that the power switch of the instrument is turned OFF. Only use the power cord supplied as a standard accessory.

Select from the following Schedule of Power Cord Specifications an appropriate power cord that matches the voltage for the area in which you use the instrument. If the power cord included in the instrument you purchased does not match the voltage, contact the dealer or manufacturer for change.

China

IT-E171

United States &

Canada IT-E172

Europe

IT-E173

England

IT-E174

There are two kinds of working voltage for the power supply: 110V and 220V, so please pay attention to the working input voltage.

AC input levels (select by change the AC power switch on the bottom of the power supply)

Option Opt.01: 220VAC ± 10%, 47 to 63 Hz Option Opt.02: 110 VAC ± 10%, 47 to 63 Hz

E

N L

E

L N

E

N L

E

L N

Quick Start

Chapter2 Quick Start

This chapter introduces the front panel, the rear panel, key functions and VFD display function of the power supply, make sure that you can quickly know the appearance, instruction and the key function before you operate the load, Help you make better use of this series of power supply.

2.1 Brief Introduction

IT6800A/B series power supply is single output DC programmable power supply, which support panel programming and offer OCP and OVP. Furthermore, built-in RS232/USB communication interface is suitable for either bench or rack mounted operation, which can provide multiple solutions according to the requirements of your design and test. IT6860A/B series and IT6870A/B series programming DC power supply offer the dual-range voltage switch for your choice, which can replace two ordinary ones.

 High-visibility vacuum fluorescent display (VFD)  Digital keypad operation  High accuracy and high resolution  Low ripple and low noise  Intelligent fan control, energy conservation, noise reduction  Can be monitored by computer software  Output voltage and current values accordance with procedure  Can use the knob to adjust the voltage and current  Can adjust the numbers steps using the cursor  Can set the output timer(0.1~9999.9S)  Standard RS232/USB communication interface  Rich SCPI orders and IT6820 compatible frame protocol to facilitate the

formation of intelligent test platform

Model

Voltage

Current

Power

IT6831A

0~18V

0~10A

0~180W

IT6832A

0~32V

0~6A

0~192W

IT6833A

0~72V

0~3A

0~216W

IT6835A

0~50V

0~4A

0~200W

IT6861A

0~20V/ 0~8V

0~5A/ 0~9A

0~100W/ 0~72W

IT6862A

0~32V/ 0~12V

0~3A/ 0~6A

0~96W/ 0~72W

IT6863A

0~72V/ 0~32V

0~1.5A/ 0~3A

0~108W/ 0~96W

IT6872A

0~35V/0~15V

0~4A/0~7A

0~140W/0~105W

IT6873A

0~75V/ 0~32V

0~2A/ 0~4A

0~150W/ 0~128W

IT6874A

0~150V/ 0~60V

0~1.2A/ 0~2A

0~180W/ 0~120W

IT6832B

0~32V

0~6A

0~192W

IT6833B

0~32V

0~6A

0~192W

IT6835B

0~50V

0~4A

0~200W

IT6861B

0~20V/ 0~8V

0~5A/ 0~9A

0~100W/ 0~72W

IT6862B

0~32V/ 0~12V

0~3A/ 0~6A

0~96W/ 0~72W

IT6863B

0~72V/ 0~32V

0~1.5A/ 0~3A

0~108W/ 0~96W

IT6872B

0~35V/ 0~15V

0~4A/ 0~7A

0~140W/ 0~105W

IT6873B

0~75V/ 0~32V

0~2A/ 0~4A

0~150W/ 0~128W

IT6874B

0~150V/ 0~60V

0~1.2A/ 0~2A

0~180W/ 0~120W

Quick Start

2.2 Front Panel Introduction

IT6800A/B series power supplies have two kinds of front panels. The output terminals of IT6830A/B series power supply are circular sockets, while IT6860A/B series power supplies are wiring terminals. Take the example of IT6860A.

①VFD display ②Rotary knob ③Compound key, the local switch key and power switch ④Number keys and ESC escape key ⑤Function keys ⑥UP、DOWN, LEFT and RIGHT key, to move cursor ⑦Output terminals

2.3 Keypad introduction

The key functions and keys of IT6830A/B series power supply are shown as below picture.

The key functions and keys of IT6870A/B series power supply are shown as

Quick Start

below picture.

Keys

Name and the function

Shift

Compound key, co-work with OVP、Menu、Save、Trigger、Lock、 and numeric key 4 and 7 to switch the dual-range

Local

Local switch key, switch from remote mode to local operation mode

Power

Power on key

0-9

Numeric keys

OVP

Voltage set key, set the output voltage/over voltage protection point for the power supply

Menu

Current set key, set the output current/menu function key, to set the relevant Parameters for the power supply

Save

Callback key to call up a set value of system parameters already stored / storage key, to save system parameter settings

Meter key, to switch from value set panel and the actual output value display

Trigger

Enter key, to confirm the number entered and operation / trigger button, which is used to trigger the List test.

Lock

Output on (off) keys, control power output state / keypad lock function keys, used to lock the panel buttons

Left and right movement keys, used to set the value, to adjust the cursor to the specified location

Up and down keys, used to select an item in the menu or increase (decrease) the output voltage or current values

Escape key

2.4 VFD Description

char

Function

char

Function

OFF

Output is off

Timer

Output on timer function is enabled

V-setV-set

I-setI-set

Recall

MeterMeter

EnterEnter

On/Off

Quick Start

CV

The power supply is in constant voltage mode

Sense

Not in use

CC

The power supply is in constant current mode

Ext

Not in use

*

The power supply is in high voltage range

Adrs

(USB) light when the address match or (RS232) received order

Meter

“Meter” key is pressed

Rmt

The power supply is in remote mode

Shift

Shift key is pressed, use compound keys

Error

The power supply has error or fault

OVP

OVP function is enabled

Prot

The power supply is in OVP /OTP protection

OCP

Not in use

Lock

Keypad is locked

2.5 Rear Panel Introduction

The rear panels of IT6800A/B series power supply are divided into series-A and series-B.

The rear panels and keyboards of IT6800A series power supply are shown as below.

① Cooling window ② Remote sense terminal

③ USB communication interface ④ RS232 communication interface

⑤ AC power socket (fuse contained)

The rear panels and keyboards of IT6800B series power supply are shown as below.

Quick Start

① Cooling window ② Remote sense terminal ③ RS232 communication interface ④ USB communication

interface

⑤ AC power socket (fuse contained) ⑥GPIB communication interface

2.6 Power-on Selftest

A successful test process indicates that the instrument meets the factory specifications and can be operated well.

Before operation, please confirm that you have fully understood the safety instructions.

 The AC input voltage is 110V or 220V, please check the switching at the

bottom of the power supply, to make sure it matches the voltage in your city. Otherwise, the power supply may be damaged.

 Use the wires of rating value and all load lines shall be capable of

withstanding the maximum short circuit output current of the power supply without causing overheat. If there are more than one load, each pair of load lines shall be capable of withstanding the full rated short-circuit output current of the power supply.

 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.

 To avoid burning out, pay attention to marks of positive and negative

polarities before wiring.

Self-test steps

Normal self-test procedures:

1. Correctly connect the power cord. Press [Power] key to start up.

VFD display information is as below.

INIT…. SCAN SYSTEM

Quick Start

2. After the power selftest, VFD displays the state of voltage and current as

below.

Error Information References

The following error information may occur when an error occurs during Power On self-test:

 About 1second after power on, if the EEPROM was damaged, the VFD will

display (about 1 S):

 If the last power status in EEPROM is lost, then VFD will display

information (about 1 S) as below:

 If the calibration data in EEPROM is lost, then VFD will display (about 1S)

as below:

 If the factory calibration data in EEPROM is lost, and then the VFD will

display(about 1 S) as below:

Exception handling

If the power supply cannot start normally, please check and take measures by reference to steps below.

1. Check whether the power line is correctly connected and confirm whether

the power supply is powered. Correct wiring of power line => 2 Incorrect wiring of power line => Re-connect the power line and check whether the exception is removed.

2. Check whether the power in On.[ Power ] key is under “ ” On

status. Yes => 3 No => Please check the [ Power ] key to start power and check whether the exception is removed.

3. Check whether set power voltage of instrument is larger than the power

supply voltage. If set power voltage is 220 V and the supply voltage is 110V, the power supply cannot start.

4. Check whether the fuse of electronic fuse is burned out.

If yes, change fuse. Detailed steps:

1) Pull out power line and take out the fuse box at power line jack with a small screw driver. As shown below.

OFF

0.000V 0.0000A

EEPROM FAIL

SYST LOST

CAL LOST

FACT LOST

Quick Start

2) If the fuse is fused, please change fuse of same specification based on machine model. See the table blow for matching information of fuse and machine model.

Model

Fuse specification

(110VAC)

Fuse specification

(220VAC)

IT6831A

6.3A

3.15A IT6832A

IT6833A

IT6835A

6.3A

3.15A

IT6860A

T5A 250V

T2.5A 250V IT6862A

IT6863A

IT6872A

6.3A 250V

3.15A 250V IT6873A

IT6874A

IT6832B

6.3A

3.15A IT6833B

IT6835B

IT6861B

T5A 250V

T2.5A 250V IT6862B

IT6863B

IT6872B

6.3A

3.15A

IT6873B

6.3A

3.15A

IT6874B

6.3A

3.15A

3) After replacement, install the fuse box back to original position, as shown below.

2.7 Output Verification

Output verification verify that the power supply outputs the correct voltage and current levels and properly responds to entries from the front panel.

Voltage Output Check

The following steps verify basic voltage functions without load.

1. Turn on the power supply

Quick Start

2. Set the current value (≥0.01A).

3. Enable the outputs Press to let the ON annunciator and the CV annunciator turn on

to light.

4. Turn on Meter mode Press to light the button, the Meter status Mark light on the display

is turned on.

5. Set the voltage level. Set different voltage values, check the voltage value displayed on the VFD

is close to the voltage value you set.

6. Ensure that the voltage can be adjusted from zero to the full rated value

Current Output check

The following steps check basic current functions with a short across the power supply’s output.

1. Turn on the power supply

2. Enable the output Press key to ensure that the output is disabled. At the same time,

the OFF status mark is on the VFD.

3. Connect a short across (+) and (-) output terminals with an insulated test lead, use a wire sufficient to handle the maximum current.

4. Adjust the voltage value to 1V.

5. Turn on the power output. Press key to ensure the output is enabled, at the same time

there is CC status sign on the VFD.

6. Turn on Meter mode Press to light the button, the Meter status Mark light on the display

is turned on.

7. Adjust the current value Set some different current values, check whether the voltage value on VFD

is near 0v, and the current on it is close to the value you set.

8. Make sure that the current can be adjusted from 0 to full rated value.

9. Turn off the output of the power supply, and remove the short wire.

On/Off

MeterMeter

On/Off

MeterMeter

Functions and Characteristics

Chapter3 Functions and Characteristics

This chapter elaborates on the functions and characteristics of power supplies. Contents following sections:

 local/remote  Voltage setting  Current setting  Output on/off  Switching the setting value and actual value  Dual-range switch(IT6860A/B/IT6870A/B）  Adjust voltage/current/power  Save operation  Trigger operation  Menu operation  OVP function  Keyboard lock function

3.1 Local Mode/Remote Mode

(Local) button on the front panel is used to switch remote mode to local

mode. After power on the power supply, it defaults in local mode. In this mode, all

buttons are enabled. While in remote control mode, all buttons are forbidden except local button. Local and remote control mode can be switched by PC. It will not change the output parameters when mode is changed.

3.2 Dual-range switch(IT6860A/B/IT6870A/B）

Operation: Press (shift) +number 4 or 7 Take IT6874A as an example, press (Shift)+number 4,VFD will appear a

mark “*”,it represents in high voltage level(0-150V,1.2A).Press (shift)+ number 7,mark “*” will disappear which indicates in low voltage level

now(0-60V,2A). In high voltage level, setting voltage is higher than the max voltage in low

voltage level. At this moment, if customer switch to lower voltage level. Then the voltage will default to be limited at the max voltage value of low voltage level. In low voltage level, working current is higher than in high voltage level. So, when customer switch to high voltage level (with lower current range), the current will default to be limited at the max current value of high voltage level.

NOTE

The output of the power supply will be OFF after switching the voltage level. You need to wait for one second before pressing the button to turn on the output. The button will be no

response in the one second. If you send the ‘OUTP ON’ command, the system will return the error message ‘Output Locked’.

3.3 Voltage setting

IT6800A/B series power supply enables customer to set voltage from 0V to

说明

On/Off

Functions and Characteristics

rated value. Press button, it will be lit. Now, there are three ways to set the voltage:

Solution1: press button-------press button to adjust the cursor’s position--------press and button to increase or decrease the

setting value. Solution2: press button------press button to adjust the

cursor’s position------adjust the knob to increase or decrease the setting value. Solution3: press button+ number to to set the voltage

value. Then press button to confirm.

3.4 Current setting

IT6800A/B series power supply enables customer to set current from 0V to rated value. Press button, it will be lit. Now, there are three ways to set

the voltage: Solution1: press button-------press button to adjust the

cursor’s position--------press and button to increase or decrease the setting value.

Solution2: press button------press button to adjust the cursor’s position------adjust the knob to increase or decrease the setting value.

Solution3: press button+ number to to set the voltage value. Then press button to confirm.

3.5 Output on/off

button is used to control the output of power supply. When

button is lit, it represents output has been turned on. If button is dark, it indicates that output is off. In output on mode, the indicator light CV or CC will be lit.

Note: Please ensure the power supply and DUT has been connected well and then press button to turn on the output.

3.6 switch the actual/setting value display

button is used to switch the display between actual and setting value.

When button is lit, it shows actual voltage and current on front panel. Meanwhile, VFD will appear a marker of “meter”. When button is dark,

it shows setting voltage and current on front panel.

3.7 CC/CV mode

According the ohm’s law, output current is determined by output voltage and

the resistance of load. When actual current is less than the setting value, power supply will function in CV mode. And CV status indicator lamp will be lit.

If actual current is above the setting value or rated value, power supply will change to CC mode, and CC status indicator lamp will be lit.

V-setV-set

0

9

Enter

I-setI-set

0

9

Enter

On/Off

MeterMeter

Functions and Characteristics

3.8 Save/Recall

IT6800A/B series power supply enables customer to store up to 9*8 groups of different operating parameters in a non-volatile memory. You can save or recall

parameters by (Shift) + (Save)buttons directly from the front panel or through command *SAV,*RCL.

Each operating parameters includes a constant voltage value, constant current value and OVP setting value.

Save operation:

Set the desired Voltage and Current value Press the (Shift) + +number 1 to 9 to assign a memory location.

Press to confirm.

Recall operation:

Keep group setting unchanged, press +number 1 to 9 to select the memory location where the settings you want to recall are stored.

Group Concept:

When storage amount exceeds 9, you have to enter into menu and select MEM item to change the group set. Meanwhile, to recall a pre-stored parameter should be coordinated with correct group set. For example, if you want to recall parameters which are stored in memory location from 10 to 19, then MEM should be set to group 1.

To change group set: Press (Shift) + button to enter the menu, press button to

select SYST SET, press to confirm. Press to select MEM, enter a numerical value, press to confirm.

3.9 Trigger operation

IT6800A/B series power supply supports two different trigger modes Manual and Bus. Configure one of the trigger sources before performing trigger operation.

This operation is often used with list operation. It provides a trigger signal to start running a list file. During the process of running a list file, trigger button

(Trigger) will keep blinking until finished.

3.10 Menu Operation

Press (Shift) + (Menu) to enter menu mode. Use the , or knob to scroll through the menu list and press to select a item and

view the parameters. Press Esc button to return to the higher level menu and to quit the menu setting.

IT6800A series

MAX VOLT

Set the Maximum Voltage

SYST

P-MEM (RESET)

Reset

Return to the factory default setup value

Keep

“Remembers” and restores the operating

Recall

Enter

Recall

I-setI-set

Enter

I-setI-set

Enter

Functions and Characteristics

SET

parameters of power supply (voltage, current settings...) before power was turned off. The next time you power up the unit, the parameters will be recalled automatically.

P-OUT (OFF)

OFF

Set the Power to OFF state after power up.

Keep

“Remembers” and restores the power

ON/OFF state of power supply before power was turned off. The next time you power up the unit, the on/off state will be recalled automatically.

COMM RS232

BAUD

Baudrate set

4800

9600

19200

38400

57600

115.2K

NONE 8BIT

8BIT None parity

EVEN 8BIT

8BIT Even parity

ODD 8BIT

8BIT Odd parity

USB

CMD SCPI

Set to SCPI protocol

SIG

Single unit to communicate with PC

MUX

Multiple units to communicate with PC

ADDR

Address range is 0-30

FRAME

Set to frame protocol

ADDR

Address range is 0-30

BEEP (ON)

OFF

Disable key sound

ON

Enable key sound

KNOB (ON)

LOCK

Lock the rotary knob

ON

Unlock the rotary knob

TRIG (MANUAL)

MANU

Press (Shift)+ (Trigger) to generate a trigger pulse.

BUS

Remote command trigger mode

MEM (GROUP1)

GRP1-8

Group set, used with Save/Recall operation

TIMER SET

OFF

Disable timer function

ON

Enable timer function(0.1-9999.9S)

RESET NO

Remain unchanged of previous menu setup

YES

Return to factory default setup

EXIT

Quit system menu

Enter

Functions and Characteristics

LIST SET

LIST STATE

OFF

Disable list function

ON

Enable list function

LIST LOAD

Recall list operation file (FILE0-FILE3)

LIST EDIT

TIME (SEC)

SEC

Select second as time unit

MIN

Select minute as time unit

VSET

Set step voltage

ISET

Set step current

SEC

Set step delay time (0.1-9999.9)

NEXT (YES)

YES

Continue to edit the next step

NO

finish list file edit

REPET

1-65535

Set repeat count

SAVE NO

Do not save the current list file. In this mode, the file can only run for one time. Once you quit the list mode or turn off the unit, the file cannot be recalled.

FILE0-FILE3

save list file to assigned memory location

EXIT

Quit list menu

POWER INFO

MODEL

Model information

VER

Firmware version

SN-1

First six number of SN

SN-2

Middle six number of SN

SN-3

Last six number of SN

EXIT

Quit information menu

EXIT MENU

Quit menu

IT6800B series

MAX VOLT

Set the Maximum Voltage

OCP SET

OFF

Disable OCP function.

ON

Enable OCP function ON(0～7.0000A)

SYST SET

P-MEN (RESET)

Reset

Return to the factory default setup value

Keep

“Remembers” and restores the operating

parameters of power supply (voltage, current settings...) before power was turned off. The next time you power up the unit, the parameters will be recalled automatically.

P-OUT (OFF)

OFF

Set the Power to OFF state after power up.

Keep

“Remembers” and restores the power

ON/OFF state of power supply before power was turned off. The next time you power up the unit, the on/off state will be

Functions and Characteristics

recalled automatically.

COMM

GPIB

ADDR

Use GPIB interface

RS232

BAUD

Baudrate set

4800

9600

19200

38400

57600

11.52K

NONE 8BIT

8BIT None parity

EVEN

8BIT Even parity

ODD

8BIT Odd parity

USB

Use USB interface

BEEP (ON) OFF

Disable key sound

ON

Enable key sound

KNOB (ON) LOCK

Lock the rotary knob

ON

Unlock the rotary knob

TRIG (MANUAL)

MANU

Press (Shift) +

Enter

(Trigger) to

generate a trigger pulse.

BUS

Remote command trigger mode

MEM (GROUP1)

GRP1-8

Group set, used with Save/Recall operation

TIMER SET OFF

Disable timer function

ON

Enable timer function(0.1-9999.9S)

RESET NO

Remain unchanged of previous menu setup

YES

Return to factory default setup

EXIT

Quit system menu

LIST SET

LIST STATE

OFF

Disable list function

ON

Enable list function

LIST LOAD

Recall list operation file (FILE0-FILE9)

LIST EDIT

TIME (SEC)

SEC

Select second as time unit

MIN

Select minute as time unit

VSET

Set step voltage

ISET

Set step current

SEC

Set step delay time(0.1-9999)

NEXT (YES)

YES

Continue to edit the next step

NO

finish list file edit

REPET

1-65535

Set repeat count

SAVE NO

Do not save the current list file. In this mode, the file can only run for one time. Once you quit the list mode or turn off the unit, the file cannot be recalled.

FILE0-FILE9

save list file to assigned memory

Functions and Characteristics

location

EXIT

Quit list menu

POWER INFO

MODEL

Model information

VER

Firmware version

SN-1

First six number of SN

SN-2

Middle six number of SN

SN-3

Last six number of SN

EXIT

Quit information menu

EXIT MENU

Quit menu

NOTE

Press button can help to quit Menu setup and any function button operation.

Maximum voltage (>MAX VOLT)

The maximum voltage can be adjusted from 0A to maximum rated voltage of each model.

To set max volt: Press (Shift) + (Menu) button to enter menu setup, scroll to >MAX

VOLT item and press to confirm.Using button to adjust cursor position and set max voltage.Output voltage set will be limited within the range of max voltage.

MAX VOLT default set is the rated voltage of each model.

OCP Function (>OCP) (Only for IT6800B series)

You can set the OCP point. When the circuit current exceeds the set point,the OCP function will be enabled. At the same time, the output of power supply will be OFF and the buzzer will warn. The “prot” remark will be lighted and “OCP” will appear on the VFD.

When the setting current is over than the OCP current,the testing instrument will be protected.When the setting current is less than the OCP current, the circuit current will be limited to the setting current for protection.

OCP current setting operation:

1. Press (Shift) + (Menu) into menu operation.

2. Press to choose OCP SET, press to confirm.

3. Press to select ON, the OCP function will be ON.press to confirm.

4. Press numeric keys to set OCP current, press to confirm. Press

to escape menu operation.

Power up setting (>P-MEM)

P-MEM item is used to set operation parameters state of power supply after power up.

If select RESET, means to initialize output parameters to factory default setup.

说明

Esc

I-setI-set

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I-setI-set

Enter

Esc

Functions and Characteristics

Every time you power up the unit, the output parameters is always 0V, 0A. If select KEEP, means to remember last shutdown parameters. The next time

you power on the unit, the output parameters are kept as the same with last shutdown setup.

Factory default set is KEEP.

On/Off state after power up (>P-OUT)

P-OUT item is used to set the output state of power supply after power up. If select KEEP, means to remain the output state of last shutdown. In this

selection if you power off the unit in output on state, then the next time you power up the unit, the output is kept in on state.

If select OFF, means every time you power up the unit, it defaults in output OFF state.

Factory default set is OFF.

Communication set (>COMM)

IT6800A/B series power supply has built-in standard RS232/USB communication interface.>COMM item is used to set the communication mode (by RS232 or USB).

It includes six kinds of baudrate set in RS232 communication mode (4800,9600,19200,38400,57600,115.2K).When operating the power supply in remote mode, make sure that you configure identical baud rate settings for the power supply and the computer.

KEY Sound Set (>BEEP)

>BEEP item is used to set the key sound. If select On, means enable the key sound. If select Off, means disable the key

sound.

Factory default set is ON.

KNOB State (>KNOB)

>KONB item is used to set the state of KONB. If select ON, means unlock the rotary knob. You can use knob to scroll menu or

set a value. If select LOCK, means disable rotary knob function.

Factory default set is ON.

Trigger Mode (>TRIG)

IT6800A/B series power supply supports two different trigger modes (MANU and BUS).

If select MANU, press (Shift) + (Trigger) can generate a trigger signal.

If select BUS, then sending command *TRIG can generate a trigger signal. Factory default set is MANU.

Group set (MEM GROUP)

IT6800A/B series power supply enables customer to store up to 9*8 groups of different operating parameters in a non-volatile memory for quick recall.

Enter

Functions and Characteristics

How to understand 9*8 9*8: There are 8 groups; each group includes nine different memory locations.

The definition of group is as follows: GRP1: means to Save/Reall parameters in memory location from 1 to 9.

Operation: Press (Shift) + (Save) + numeric keys 1to 9( +numeric keys 1 to 9)

GRP2: means to Save/Reall parameters in memory location from 10 to 18. GRP3-GRP8 is counted on the analogy of the same rule.

Timer setup (>TIMER SET)

TIMER SET item is used to enable or disable timer function. If select ON, means to enable output Timer. Output will turn off after value set in

menu “Timer set” counted down to zero. Meanwhile, VFD will appear a mark of “Timer”.

If select OFF, means to disable Timer function.

Factory default set is ON.

Reset to factory setting (>RESET)

RESET is used to return to the factory default setup. If select YES, means to return to factory default setup. If select NO, means to keep the current setup unchanged. Factory default setup is as follows: P-MEM=KEEP P-OUT=OFF COMM=RS232 CMD=SCPI BEEP= ON KNOB=ON TRIG=MANU MEM=GROUP1 TIMER=OFF

List Function (>List Set)

List mode allows you to create a sequence of steps, store it into the power

supply’s non volatile memory and execute it. The input parameters for

generating a list include the time unit (min or sec), the step voltage, step current, step time and whether continue to the next step, repeat count and whether save the file. Each list file can be edit up to 150 steps.

Once a trigger signal is received, the programmed list will be executed once. Once finished, the instrument will pause until the next trigger signal is received.

Operation: Generate file:five steps:

1. Press (Shift) + (Menu) into menu operation

2. VFD displays MAX VOLT, press to select LIST SET, press

Recall

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Functions and Characteristics

to confirm

3. VFD displays LIST STATE, press to confirm.VFD displays LIST>OFF, press to select >LIST >ON, press to confirm.

Then button will be lit. You have enables list mode.

4. Press to select LIST EDIT, press to confirm.

5. VFD displays TIME SEC, press to confirm. Continue to next step, or press to select >TIME MIN. Press to confirm. Note: no

matter you select SEC or MIN,the adjustable range is 0.1~9999.9

6. VFD displays VSET 0.000, press numeric keys to or adjust rotary knob to set voltage, press to confirm.

7. VFD displays ISET 0.0000, press numeric keys to or adjust rotary knob to set current, press to confirm.

8. VFD displays SEC 0.1, press numeric keys to or adjust rotary knobs to set time press to confirm.

9. VFD displays NEXT >YES, press to confirm.

10. Repeat steps from 5）~8) for four times. The last time, when VFD shows NEXT >YES, press to select NEXT >NO, press to confirm.

11. VFD displays REPET 1, press numeric keys to or adjust rotary knob to set cycle counts, press to confirm.Repeat count

range:1~65535.

12. VFD displays SAVE >NO, press to confirm.In this condition, the current list file does not be saved. It can only run once. As long as you quit the list mode or turn off the unit, the list file will not exist anymore.You also

can press to select >SAVE FILE0 to save the file into assigned memory location for quick recall. Press to confirm.

13. If you intends not save the list file, VFD will directly display LIST EDIT.If you select to save the list file, VFD will display LIST EDIT after blinking contents of SAVE DONE for about three seconds.

14. Press two times to exit menu operation.

15. After you edit a list file, set the trigger source in the menu to “MANUAL”

16. Press button to turn on the output. Press (Shift) + (Trigger) to generate a trigger signal to execute a list file.

17. If you have saved multiple list files. LIST LOAD item can help you to recall assigned file that you need. Then press two times to escape menu

operation. Then the same operation as step 16）

18. Press (Shift)+ (Menu) into menu setup------press to select LIST SET, press to confirm-------VFD displays LIST STATE, press

to confirm-------press to select LIST >OFF, to

confirm.

Enter

0

9

Enter

0

9

Enter

0

9

Enter

0

9

Enter

Esc

On/Off

Enter

Esc

I-setI-set

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Functions and Characteristics

3.11 OVP Function

IT6800A/B series power supply provides OVP function. Press (Shift) + (OVP) button to set OVP value. After setup, a mark

of “ovp” will appear on the VFD which means you have successfully open OVP

function. Press (Shift) + (OVP) again will release OVP function. Factory

default set is off OVP function. Reasons to trigger OVP:

Customer’s wrong operation, internal circuit error or over high external voltage

will cause OVP. Once OVP is triggered, the power supply will off the output immediately. Meanwhile, the VFD displays “OVER VOLT” and there will be a mark of “PROT” appearing on the top right corner of VFD.

The operator should avoid adding an external voltage over 120% of rated voltage across the power supply. Or it will damage the internal components.

When OVP is triggered, you should inspect the external causes and remove it firstly. Then press ON/OFF button to restart the output. If in remote control

mode, you should clear the “PROT” state by sending command and then turn

on the output.

3.12 KEY LOCK

Press (Shift) + (Lock) button to lock the function keys. If

successfully be locked, a mark of “LOCK” will appear on the front panel.

Meanwhile, all the function keys will be disabled except ON/OFF, Meter and Shift buttons.

Press (Shift) + (Lock) again can release the key lock function.

3.13 Remote Sense Function

Remote sense is used to maintain good regulation at the load and reduce the degradation of regulation that would occur due to the voltage drop in the leads between the power supply and the load. By connecting the supply for remote

voltage sensing, voltage is sensed at the load rather than at the supply’s output

terminals. This will allow the supply to automatically compensate for the voltage drop in the load leads and improve regulation.

TriggerTrigger

V-setV-set

On/Off

Functions and Characteristics

 S+, S- : remote sense terminals

 +, -: output pins. These pins are identical to the output terminals in the

front.

Disable remote sense function:

When you do not use remote sense function, please refer to the below Using short clip to connect + and S+,- and SConnect device under test with output terminals on front of power supply.

Enable remote sense function:

Disconnect + and S+, - and SConnect sensing wires from S+ and S- to the load input terminals Connect output wires from + and – on front panel to the load input terminals

NOTE

To ensure the system stability, please using twisted-pair cables to connect sensing terminals and loads input terminals.

说明

+ S+ S- -

Remote Operation

Chapter4 Remote Operation

IT6800A series power supply provides two standard communication interfaces: RS232, USB. IT6800B series power supply provides three standard communication interfaces: RS232, USB, GPIB. User can select anyone to communicate with the computer.

4.1 RS232 interface

There is a COM port (DB9)connector at the rear of the power supply, when connect to computer, you need to connect a cable with COM port on both side;

To active connection, you need to press the front panel composite key

(Shift)+ to configurate settings the same as computer

configuration settings. RS-232 interface can be used to program all of the SCPI commands.

NOTE

The RS232 settings on the computer side must match the settings in the system menu of the instrument. If any change, please press (Shift) + key to enter the system menu

and then implement the changes.

RS-232 data format

RS-232 data is 10-bit words contain a start bit and a stop bit. The start bit and

stop bit can’t be edited. However, you can select the parity items by pressing

(Shift) + key on the front panel and enter the system

menu(SYSTEM SET).

Parity options are stored in nonvolatile memory

Baud Rate

The front panel (Shift)+ button allows the user to select a baud rate which is stored in the non-volatile memory: 4800/9600/19200 /38400/57600/115200

RS-232 connection

Use a RS232 cable with DB-9 interface, RS-232 serial port can connect with the controller (eg PC). Do not use blank Modem cable. Table 2-2 shows the plug pins.

If your computer is using a RS-232 interface with DB-25 connector, you need an adapter cable with a DB-25 connector at one end and the other side is a DB-9(not blank modem cable)

Pin introduction of RS-232 connector

Pin number

Description 1

No connection

2

TXD, transfer date

3

RXD, receive data

4

No connection

5

GND, ground

I-setI-set说明I-setI-set

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Remote Operation

6

No connection

7

CTS, clear transfer

8

RTS, ready to

transfer

9

No connection

RS-232 Troubleshooting:

If there is RS-232 connection problem, check the following:

1. Computer and power supply must configure the same baud rate, parity, data bits and flow control options. Note that the power configuration as a start bit and a stop bit (these values are fixed).

2. As described before in RS-232 connector, you must use the correct interface cable or adapter. Note that even if the cable has the right plug, the internal wiring may be wrong.

3. Interface cable must be connected to the correct serial port on the computer (COM1, COM2, etc.).

Communication Settings

Before communication, you should first make the following parameters on the power supply and PC matches.

Baud Rate: 9600 (4800,9600,19200,38400,57600,115200). You can enter the system menu from the front panel, and then set the baud rate.

 Data bits: 8  Stop Bits: 1  calibration (none, even, odd)  EVEN 8 data bits, have even parity  ODD 8 data bits have odd parity  NONE 8 data bits, no parity

 MODE: (SIG,MUX)  SIG a single instrument is connected to the communication

 MUX multiple sets of instrument communication with PC at the same time,

in this situation, instrument address must be set to distinguish among all the units(address 0 ～30, default set is 0）

Local Address: (0 ~ 30, the factory default setting is 0)

Parity=None

Start Bit

8 Data Bits

Stop Bit

4.2 USB interface

Use a Cable with two USB port to connect the power and the computer. All power functions can be programmed via USB.

The USB488 interface functions of the power supply described as below:

 interface is 488.2 USB488 interface.

 Interface Receive REN_CONTROL, GO_TO_LOCAL, and

Remote Operation

LOCAL_LOCKOUT request.

 Interface receive MsgID = TRIGGER USBTMC order information,

and will pass TRIGGER order to the functional layer.

Power USB488 device functions described as follows:

 device can read all of the mandatory SCPI orders.  device is SR1 enabled.  device is RL1 enabled.  device is DT1 enabled.

To communicate via USB interface, you should first select the communication interface as USB in the system menu, the detailed operation is:

1. Press (Shift)+ to enter the menu.

2. Press to select SYST SET, and then press , “P-MEM KEEP” is displayed, then press to select COMM RS232, press .

3. Press to select USB, and to confirm.

4. Press to escape the menu. NOTE

when communicate via USB interface, only SCPI commands are supported, so you should make sure the LANG(SCPI/FRAME) item in the system menu is selected as SCPI, if not, please change to “SCPI”. IT6800B series only support SCIP.

4.3 GPIB interface (Only for IT6800B series)

First, Connect the GPIB interface on the power supply and the GPIB card on computer via IEEE488 bus, must be full access and tighten the screws. Then set the address, the address range of the power : 0 to 30,

can set by the function key on the front panel, press the (Shift)+

key to enter the system menu function, find the GPIB address

setting by button, type the address, key to confirm. GPIB address is stored in nonvolatile memory line.

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说明

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Specifications

Chapter5 Specifications

5.1 Specifications

Model

IT6831A V1.1

Rated Value

( 0～40 ℃)

Voltage

0～18V

Current

0～10A

Power

180W

Load regulation

(％of Output+Offset)

Voltage

≤0.01%+6mV

Current

≤0.1%+5mA

Line regulation

(％of Output+Offset)

Voltage

≤0.02%+6mV

Current

≤0.1%+5mA

Programming

Resolution

Voltage

1mV

Current

0.1mA(＜10A)/1mA(≥10A)

Readback resolution

Voltage

1mV

Current

0.1mA(＜10A)/1mA(≥10A)

Programming

accuracy

12 month (25℃±5℃)

(％of Output+Offset)

Voltage

≤0.04%+8mV

Current

≤0.1%+12mA

Readback accuracy

12 month (25℃±5℃)

(％of Output+Offset)

Voltage

≤0.04%+8mV

Current

≤0.1%+12mA

Ripple

(20Hz -20MHz)

Voltage

≦4mVp-p and 1.5mVrms

Current

≤7mArms

Setup Temperature

Coefficient

(％of Output/℃+Offset)

Voltage

0.01%+3mV

Current

0.01%+2mA

Read Back Temperature

Coefficient

(％of Output/℃+Offset)

Voltage

0.01%+3mV

Current

0.01%+2mA

Rising slope (no load)

Voltage

≤100mS

Rising slope (full load)

Voltage

≤100mS

descending slope (no

load)

Voltage

≤200mS

descending slope (full

load)

Voltage

≤100mS

Transient

response time

≤100uS ( Typical)

50%-100% Freq=1K 75mV

AC Input

Voltage1

110V±10%

Voltage3

220V±10%

Frequency

47HZ-63HZ

Setup stability-8h

(％of Output +Offset)

Voltage

≦0.02％+3mV

Current

≦0.1％+2mA

Readback stability-8h

(％of Output +Offset)

Voltage

≦0.02％+3mV

Current

≦0.1％+2mA

Fuse specification

6.3A(110V)/3.15A(220V)

Remote Sense

Compensation Voltage

1V

Specifications

Model

IT6832A

IT6833A

Output Ratings

Voltage /

Current

0-32V/0-6A

0-72V/0-3A

Load regulation

Voltage

≤0.01％+5mV

≤0.01％+4mV

Current

≤0.01％+3mA

≤0.01％+2mA

Line regulation

Voltage

≤0.01％+5mV

≤0.01％+4mV

Current

≤0.01％+3mA

≤0.01％+2mA

Programming

Resolution

Voltage

1mV

Current

0.1mA

Readback resolution

Voltage

1mV

Current

0.1mA

Programming accuracy

12 month

( 25℃±5℃ )

Voltage

≤0.04％+8mV

Current

≤0.1％+8mA

≤0.1％+5mA

Readback accuracy

12 month

( 25℃±5℃ )

Voltage

≤0.04％+8mV

Current

≤0.1％+8mA

≤0.1％+5mA

Ripple&Noise (20HZ-20M)

Normal mode Voltage

≤4mVp-p and

1mVrms

≤4mVp-p and

1mVrms

Normal mode Current

＜6mArms

＜5mArms

Common mode Current

＜1.5uArms

Transient response time

(Recover to 75mV)

50%-100% load

100us

voltage settling time

rise 10%-90%

＜100ms

＜150ms

fall 10%-90%

＜350ms

＜550ms

Command Response

Time

20mS ( Typical)

Power Factor

0.7 ( Typical)

Max.Current

4.5A(110V)/2.2A(220V)

Maximum input apparent power

750VA

Storage temperature

-10℃~70℃

Protection

OVP/OTP

Interface

USB/RS232

Isolation ( output to

ground)

200V

Operation Environment

0~40℃

Dimension (mm)

214.5mmW*88.2mmH*354.6mmD

Weight

7.2Kg

Specifications

Model

IT6832A

IT6833A

Dimension (mm)

214.5mmW*88.2mmH*354.6mmD

Weight

7.4Kg

Model

IT6835A

Rated Value

( 0～40 ℃)

Voltage

0～50V

Current

0～4A

Power

200W

Load regulation

(％of Output+Offset)

Voltage

≤0.01%+5mV

Current

≤0.1%+3mA

Line regulation

(％of Output+Offset)

Voltage

≤0.02%+5mV

Current

≤0.1%+3mA

Programming

Resolution

Voltage

1mV

Current

1mA

Readback resolution

Voltage

1mV

Current

1mA

Programming accuracy

12 month (25℃±5℃)

(％of Output+Offset)

Voltage

≤0.04%+8mV

Current

≤0.1%+8mA

Readback accuracy

12 month (25℃±5℃)

(％of Output+Offset)

Voltage

≤0.04%+8mV

Current

≤0.1%+8mA

Ripple

(20Hz -20MHz)

Voltage

≦3mVp-p and 1mVrms

Current

≤6mArms

Setup Temperature

Coefficient

(％of Output/℃+Offset)

Voltage

0.01%+3mV

Current

0.01%+2mA

Read Back Temperature

Coefficient

(％of Output/℃+Offset)

Voltage

0.01%+3mV

Current

0.01%+2mA

Rising slope (no load)

Voltage

≤100mS

Rising slope (full load)

Voltage

≤100mS

descending slope (no

load)

Voltage

≤550mS

descending slope (full

load)

Voltage

≤100mS

Transient response

time

≤50uS ( Typical)

50%-100% Freq=1K 75mV

AC Input

Voltage1

110V±10%

Voltage3

220V±10%

Frequen

cy

47HZ-63HZ

Setup stability-8h

(％of Output +Offset)

Voltage

≦0.02％+3mV

Current

≦0.1％+2mA

Readback stability-8h

(％of Output +Offset)

Voltage

≦0.02％+3mV

Current

≦0.1％+2mA

Remote Sense

Compensation Voltage

1V

Command Response

Time

20mS ( Typical)

Specifications

Model

IT6861A

IT6862A

IT6863A

Output

Ratings

Dual range output

0-20V,5A/0-8V,9A

0-32V,3A/0-12V,6A

0-72V,1.5A/0-32V,3A

Load

regulation

Voltage

≤0.01％+4mV

≤0.01％+3mV

Current

≤0.01％+2mA

Line

regulation

Voltage

≤0.01％+4mV

≤0.01％+3mV

Current

≤0.01％+2mA

Programming

Resolution

Voltage

1mV

Current

0.1mA

Readback

resolution

Voltage

1mV

Current

0.1mA

Programming

accuracy

12 month

(25℃±5℃)

Voltage

≤0.04％+8mV

Current

≤0.1％+5mA

Readback

accuracy

12 month

(25℃±5℃)

Voltage

≤0.04％+8mV

Current

≤0.1％+5mA

Ripple

(20HZ-20M)

Voltage

≤3mVp-p

≤4mVp-p

≤3mVp-p

Current

≤9mArms

＜7mArms

＜6mArms

Transient response

time

Recover to 75mV (50%~100%load)

＜50uS

Rise time

10%-90%

<90ms

Fall time

90%-10%

<150ms

<200ms

<250ms

Sample Rate

10HZ/S

Protection

OTP;OVP

Dimension(mm)

214.5mmW*88.2mmH*354.6mmD

Weight

8.5Kg

Model

IT6872A

Output

Ratings

Dual range output

0-35V,4A

/0-15V,7A

Fuse specification

6.3A(110V)/3.15A(220V)

Power Factor

0.7 ( Typical)

Maximum input

apparent power

750VA

Storage temperature

-10℃~70℃

Protection

OVP/OTP

Interface

USB/RS232

Isolation ( output to

ground)

200V

Operation Environment

0~40℃

Dimension (mm)

214.5mmW*88.2mmH*354.6mmD

Weight

7.2Kg

Specifications

Load

regulation

Voltage

≤0.01％+5mV

Current

≤0.01％+3mA

Line

regulation

Voltage

≤0.01％+5mV

Current

≤0.01％+3mA

Programming

Resolution

Voltage

1mV

Current

0.1mA

Readback

resolution

Voltage

1mV

Current

0.1mA

Programming

accuracy

12 month

(25℃±5℃)

Voltage

≤0.04％+8mV

Current

≤0.1％+5mA

Readback

accuracy

12 month

(25℃±5℃)

Voltage

≤0.04％+8mV

Current

≤0.1％+5mA

Ripple&Noise

(20HZ-20M)

Normal mode Voltage

≤3mVp-p /1mVrms

Normal mode Current

<6mArms

Common mode Current

<1.5uArms

Transient

response time

Recover to 75mV (50%~100%load)

<50us

Rise time

10%-90%

<90ms

Fall time

90%-10%

<350ms

Dimension(mm)

214.5mmW*88.2mmH*354.6mmD

Weight

7.1Kg

Model

IT6873A

Output Ratings

( 0 °C~40 °C)

Voltage

H:0-75V L:0-32V

Current

H:0-2A L:0-4A

Power

H:150W L:128W

Load

regulation

(％of

output+offset)

Voltage

≤0.01%+4mV

Current

≤0.01%+2mA

Line regulation

(％of

output+offset)

Voltage

≤0.01%+4mV

Current

≤0.01%+2mA

Specifications

Programming

Resolution

Voltage

1mV

Current

0.1mA

Readback resolution

Voltage

1mV

Current

0.1mA

Programming

accuracy

12 month

(25℃±5℃)

Voltage

≤0.04%+8mV

Current

≤0.1%+5mA

Readback

accuracy

12 month

(25℃±5℃)

Voltage

≤0.04%+8mV

Current

≤0.1%+5mA

Ripple

(20Hz ~20MHz)

Voltage

≤3mVp-p/1mVrms

Current

≤6mArms

Rise time

Voltage

≤120mS(10%-90%)

Fall time

Voltage

≤450m(90%-10%)

Transient

response time

Voltage

50us (50%-100% load Recover to 75mV)

Sample rate

10HZ/S

Protection

OTP;OVP

Dimension

(mm)

214.5mmW×88.2mmH×354.6mmD

Weight

8.5Kg

Model

IT6874A

Output Ratings

( 0 °C~40 °C)

Voltage

H:0-150V L:0-60V

Current

H:0-1.2A L:0-2A

Power

H:180W L:120W

Load regulation

(％of

Voltage

≤0.01%+4mV

Specifications

Model

IT6832B

IT6833B

Output Ratings

Voltage /

Current

0-32V/0-6A

0-72V/0-3A

Load regulation

Voltage

≦0.01％+5mV

≦0.01％+4mV

output+offset)

Current

≤0.01%+2mA

Line regulation

(％of

output+offset)

Voltage

≤0.01%+4mV

Current

≤0.01%+2mA

Programming

Resolution

Voltage

1mV(<100V) 10mV(≧100V)

Current

0.1mA

Readback resolution

Voltage

1mV(<100V) 10mV(≧100V)

Current

0.1mA

Programming

accuracy

12 month

(25℃±5℃)

Voltage

≤0.05%+20mV

Current

≤0.1%+5mA

Readback

accuracy 12 month

(25℃±5℃)

Voltage

≤0.05%+20mV

Current

≤0.1%+5mA

Ripple

(20Hz ~20MHz)

Voltage

≤5mVp-p/1.5mVrms

Current

≤6mArms

Rise time

Voltage

≤150ms(10%-90%)

Fall time

Voltage

≤2.5s(90%-10%)

Transient

response time

Voltage

100us (50%-100% load Recover to 75mV)

Sample rate

10HZ/S

Protection

OTP;OVP

Dimension

(mm)

214.5mmW×88.2mmH×354.6mmD

Weight

8.5Kg

Specifications

Current

≦0.01％+3mA

≦0.01％+2mA

Line regulation

Voltage

≦0.01％+5mV

≦0.01％+4mV

Current

≦0.01％+3mA

≦0.01％+2mA

Programming

Resolution

Voltage

1mV

Current

0.1mA

Readback resolution

Voltage

1mV

Current

0.1mA

Programming accuracy

12 month

( 25℃±5℃ )

Voltage

≦0.04％+8mV

Current

≦0.1％+8mA

≦0.1％+5mA

Readback accuracy

12 month

( 25℃±5℃ )

Voltage

≦0.04％+8mV

Current

≦0.1％+8mA

≦0.1％+5mA

Ripple&Noise (20HZ-20M)

Normal mode Voltage

≦4mVp-p and

1mVrms

≦4mVp-p and

1mVrms

Normal mode Current

＜6mArms

＜5mArms

Common mode Current

＜1.5uArms

Transient response time

(Recover to 75mV)

50%-100% load

100us

Voltage settling time

rise 10%-90%

＜100ms

＜150ms

fall 10%-90%

＜350ms

＜550ms

Dimension (mm)

214.5mmW*88.2mmH*354.6mmD

Weight

7.1Kg

7.7Kg

Model

IT6835B

Rated Value

( 0～40 ℃)

Voltage

0～50V

Current

0～4A

Power

200W

Load regulation

(％of

Output+Offset)

Voltage

≤0.01%+5mV

Current

≤0.1%+3mA

Line regulation

(％of Output+Offset)

Voltage

≤0.02%+5mV

Current

≤0.1%+3mA

Programming

Resolution

Voltage

1mV

Current

1mA

Readback resolution

Voltage

1mV

Current

1mA

Programming

accuracy 12 month (25℃±5℃)

Voltage

≤0.04%+8mV

Current

≤0.1%+8mA

Specifications

Model

IT6861B

IT6862B

IT6863B

Output

Dual range

0-20V,5A/0-8V,9A

0-32V,3A/0-12V,6A

0-72V,1.5A/0-32V,3A

(％of

Output+Offset)

Readback accuracy

12 month (25℃±5℃)

(％of

Output+Offset)

Voltage

≤0.04%+8mV

Current

≤0.1%+8mA

Ripple

(20Hz -20MHz)

Voltage

≦3mVp-p and 1mVrms

Current

≤6mArms

Setup Temperature

Coefficient

(％of Output/℃

+Offset)

Voltage

0.01%+3mV

Current

0.01%+2mA

Read Back

Temperature

Coefficient

(％of Output/℃

+Offset)

Voltage

0.01%+3mV

Current

0.01%+2mA

Rising slope

(no load)

Voltage

≤100mS

Rising slope

(full load)

Voltage

≤100mS

descending slope

(no load)

Voltage

≤550mS

descending slope

(full load)

Voltage

≤100mS

Transient

response time

≤50uS ( Typical)

50%-100% Freq=1K 75mV

AC Input

Voltage1

110V±10%

Voltage3

220V±10%

Frequency

47HZ-63HZ

Setup stability-8h

(％of Output +Offset)

Voltage

≦0.02％+3mV

Current

≦0.1％+2mA

Readback stability-8h

(％of Output +Offset)

Voltage

≦0.02％+3mV

Current

≦0.1％+2mA

Remote Sense Compensation

Voltage

1V

Command Response

Time

20mS ( Typical)

Fuse specification

6.3A(110V)/3.15A(220V)

Power Factor

0.7 (Typical)

Maximum input apparent power

750VA

Storage temperature

-10℃~70℃

Protection

OVP/OTP

Interface

GPIB/USB/RS232

Isolation ( output to

ground)

200V

Operation

Environment

0~40℃

Dimension (mm)

214.5mmW*88.2mmH*354.6mmD

Weight

7.2Kg

Specifications

Ratings

output

Load

regulation

Voltage

≤0.01％+4mV

≤0.01％+3mV

Current

≤0.01％+2mA

Line

regulation

Voltage

≤0.01％+4mV

≤0.01％+3mV

Current

≤0.01％+2mA

Programming

Resolution

Voltage

1mV

Current

0.1mA

Readback

resolution

Voltage

1mV

Current

0.1mA

Programming

accuracy

12 month

(25℃±5℃)

Voltage

≤0.04％+8mV

Current

≤0.1％+5mA

Readback

accuracy

12 month

(25℃±5℃)

Voltage

≤0.04％+8mV

Current

≤0.1％+5mA

Ripple

(20HZ-20M)

Voltage

≤3mVp-p

≤4mVp-p

≤3mVp-p

Current

≤9mArms

≤7mArms

≤6mArms

Transient response

time

Recover to 75mV (50%~100%load)

＜50uS

Rise time

Voltage

≤90mS(10%-90%)

Fall time

Voltage

≤150m(90%-10%)

≤200m(90%-10%)

≤250m(90%-10%)

Sample rate

10HZ/S

Protection

OTP;OVP

Dimension

(mm)

214.5mmW*88.2mmH*354.6mmD

Weight

8.5Kg

Model

IT6872B

IT6873B

Output

Ratings

Dual range output

0-35V,4A

/0-15V,7A

0-75V,2A /0-32V,4A

Load

regulation

Voltage

≤0.01％+5mV

≤0.01％+4mV

Current

≤0.01％+3mA

≤0.01％+2mA

Line

regulation

Voltage

≤0.01％+5mV

≤0.01％+4mV

Current

≤0.01％+3mA

≤0.01％+2mA

Programming

Resolution

Voltage

1mV

Current

0.1mA

Readback

resolution

Voltage

1mV

Current

0.1mA

Programming

accuracy

12 month

(25℃±5℃)

Voltage

≤0.04％+8mV

Current

≤0.1％+5mA

Readback

accuracy

12 month

Voltage

≤0.04％+8mV

Current

≤0.1％+5mA

Specifications

(25℃±5℃)

Ripple&Noise

Normal mode

Voltage

≤3mVp-p /1mVrms

Normal mode Current

<6mArms

Common mode Current

<1.5uArms

Transient

response time

Recover to 75mV (50%~100%load)

<50us

Rise time

10%-90%

<90ms

<120ms

Fall time

90%-10%

<350ms

<450ms

Model

IT6874B

Output Ratings

( 0 °C~40 °C)

Voltage

H:0-150V L:0-60V

Current

H:0-1.2A L:0-2A

Power

H:180W L:120W

Load regulation

(％of

output+offset)

Voltage

≤0.01%+4mV

Current

≤0.01%+2mA

Line regulation

(％of

output+offset)

Voltage

≤0.01%+4mV

Current

≤0.01%+2mA

Programming

Resolution

Voltage

1mV(<100V) 10mV(≧100V)

Current

0.1mA

Readback resolution

Voltage

1mV(<100V) 10mV(≧100V)

Current

0.1mA

Programming

accuracy 12 month

(25℃±5℃)

Voltage

≤0.05%+20mV

Current

≤0.1%+5mA

Readback

accuracy 12 month

(25℃±5℃)

Voltage

≤0.05%+20mV

Current

≤0.1%+5mA

Ripple

(20Hz ~20MHz)

Voltage

≤5mVp-p/1.5mVrms

Specifications

The above specifications may be subject to change without prior notice.

5.2 Supplementary Characteristics

Memory capacity:9*8 registeres Suggested calibration frequency:Once a year AC input level(A transfer switch is selectable on the rear panel) Option Opt.01: 220VAC ± 10%, 47 to 63 Hz Option Opt.02: 110 VAC ± 10%, 47 to 63 Hz

Cooling type

Intelligent fans

Current

≤6mArms

Rise time

Voltage

≤150ms(10%-90%)

Fall time

Voltage

≤2.5s(90%-10%)

Transient

response time

Voltage

100us (50%-100% load Recover to 75mV)

Sample rate

10HZ/S

Protection

OTP;OVP

Dimension

(mm)

214.5mmW×88.2mmH×354.6mmD

Weight

8.5Kg

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.

Model

Specification

Cross Section

Length

IT-E301/10A

10A

-

1m

IT-E301/30A

30A

6mm2

1.2m

IT-E301/30A

30A

6mm2

2m

IT-E301/60A

60A

20mm2

1.5m

IT-E301/120A

120A

50mm2

2m

IT-E301/240A

240A

70mm2

1m

IT-E301/240A

240A

70mm2

2m

IT-E301/360A

360A

95mm2

2m

For maximum current of AWG copper wire, refer to table blow.

AWG

10

12

14

16

18

20

22

24

26

28

The Maximum Current Value( A)

40

25

20

13

10 7 5

3.5

2.5

1.7

Note: AWG ( American Wire Gage), it means X wire ( marked on the wire). The table above lists current capacity of single wire at working temperature of 30°C. For reference only.

No output

Please check the status of current in SET whether it is zero; if it is set as zero, please modify to non-zero value; if still no output, please connect ITECH directly.

How to avoid it couldn’t start when test battery

When test battery, the main reason of no start is that battery (residual voltage) discharges capacitors of positive and negitive terminals of the power supply.

Method to avoid no start: connect a switch which is parrallel with a current limiting discharging resistor. Close the switch after all the all leads connected well. The wiring diagram as follows:

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.

ITech IT6835A, IT6832A, IT6831A, IT6833A, IT6861A User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual