I-Tech IT6720 User manual

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.
We 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
We certify 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.
WarrantyThis hardware product is warranted against defects in material
and workmanship for a period of ONE year from date of delivery.
IT6720 power supply for use with a hardware product and when
properly installed on that hardware product, is warranted not to
fail to execute their programming instructions due to defects in
material and workmanship for a period of 90 days from date of
delivery. During the warranty period our company will either
repair or replace products which prove to be defective. Our
company does not warranty that the operation for 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 our
company. Customer shall prepay shipping charges (and shall
pay all duty and taxes) for products returned to our place for
warranty service. Our company 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.
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) , and in jurisdictions adopting
that Directive, 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 in the disposition of this product and otherwise
observe all applicable requirements.
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
Compared with other power supplies, IT6720 has the
widest range of voltage and current. The max output
voltage is 60V, the max current is 5A, and the max power
is 100W. You can set multi-groups voltage and current
value as long as the max range allowed. So it can replace
3 power supplies 60V*1.6A / 32V*3A / 20V*5A, and help
you save money.
Example
V
If you have set the voltage value
60
with 60V, the max current value can
Power
be set with100(W) / 60(V) = 1.66A,
100%
40
because the max power is 100W. If
the voltage value is 10V, the max
current value can’t be set with 10V,
20
only 5V.
12 3 4 5
IT6720 output group
Attribute
Full Digital control
Full Digital control
Full Range 10mV/1mA Resolutio
Full Range 10mV/1mA Resolution
Highlight LED display
Low ripple and noise
Very Sm
Very all size Small size
High
High reliability
reliability OCP
OCP / /OVP OVP / /OHP OHP
Output ON/OFF Control
Output ON/OFF Control
Very competitive price
Very competitive price
Storage for 4*
Storage for 4*100 sets Preset Value 100 sets Preset Value
I

Panel Layout
Voltage Value
Step B + Memory B
Step A + Memory A
Step C + Memory C
Step D + Memory D
Current Value
Memory save (Shift)
Left arrow + Memory A Button
Keyboard (Shift)
Enter + Memory C Button
Output ON/OFF Button
Air flow input
Main Power ON/OFF
Voltage setup Indicator
CC mode Indicator
CV mode Indicator
OCP Indicator
OVP Indicator
Memory mode Indicator
Keyboard Lock Indicator
Shift Indicator
Output OFF Indicator
Current setup Indicator
Recall (Shift)
Right arrow + Memory B Button
Function Setup (Shift)
Rotary Encoder
Voltage / Current Selector + Memory D Button
Setup Display (Shift)
Shift Button
Output +
Output –
Ground

DV/A
A
B
DV/A
A
B
On/Off
On/Off
Quick Start
Check out
Check that the power supply has been destroyed or not. If there is any flaw,
please contact the vendor.
Make sure the AC input voltage of power supply accord with the standards
of your country or area.
If the 2 terms above are right, please turn on the power supply.
Voltage Set Preset Voltage
Press
D V/A
key to make the preset
voltage light “V” bright, and it
means you can set voltage value.
Press
A
B
key, move the
cursor to position B , screw the
knob , the voltage value will rise
or decline 1V.
Current Set
V
A
Auto Range DC Power Supply CV CC
OVP OCP
OFF Shift
Lock Prog
A B C D
Step cursor B
IT6720 60V/5A/100W
ITECH
Press
D V/A
key to make the
preset current light “A” bright, and
it means you can set current value.
Press
A
B
key, move the
cursor to position A , screw the
knob , the current value will
rise or decline 1A.
Output Operation
Press
On/Off
key to make the
output state on, and the voltage
and current value on the LED will
wink for 3 seconds, then the LED
will display the actual output value.
And the “ OFF” light will be off, that
means the power supply is working.
Press
On/Off
key again, the output
will be off.
V
A
IT6720 60V/5A/100W
Auto Range DC Power Supply CV CC
OVP OCP
OFF Shift
Lock Prog
ITECH
A B C D
Preset CurrentStep cursor A
V
A
IT6720 60V/5A/100W
Auto Range DC Power Supply CV CC
OVP OCP
OFF Shift
Lock Prog
ITECH
A B C D
Output OFF Indicator

Shift
Shift
C
Shift
DV/A
A
B
C
A
B
Step value for Cursor Position
Cursor position Step voltage Step current
A 10V 1A
B 1V 0.1A
C 0.1V 0.01A
D 0.01V 0.001A
Check the Preset Voltage and Current Value
The power supply usually displays the actual voltage and current value.
If you want to check the preset voltage and current value, please press
for 2 times, and then the preset value will display for 3 seconds.
Key Lock Function
Shift
This function can prevent error operation. Press
Shift
and the lightShift
will bright, and then press
C
(Lock) key, the light Lock will bright, that
means the keys have been locked. Repeat above operation, key lock
function will be disabled.
OVP Function
Press
Shift
first, then press
(Setup) key for 3 seconds, LED
will display OVP.
Use
D V/A
A
B
key and knob
to set OVP value.
OCP Function
V
A
IT6720 60V/5A/100W
Auto Range DC Power Supply CV CC
OVP OCP
OFF Shift
Lock Prog
ITECH
A B C D
OVP Value
After setting OVP value, press
into OCP function, use
key and knob
C
to set OCP
A
B
value.
Note
The output of power supply will be
off if the OVP and OCP value are
less than the actual voltage and
current value. Default setting is
OVP=61V，OCP=5.1A, OCP Value
V
A
IT6720 60V/5A/100W
Auto Range DC Power Supply CV CC
OVP OCP
OFF Shift
Lock Prog
ITECH
A B C D

C
A
B
C
On/Of
Shift
A
C
B
V/
D A
A
ifh
B
A
C
B
V/
D A
A
C
B
V/
D A
Sh
B Shi
Store Group Setting
C
After setting the OCP value, press IT6720 60V/5A/100W
key into GRP setting, use
A
B
ITECH
Auto Range DC Power Supply CV CC
key and knob to select store group. V OVP OCP
There are 100 groups to be selected,
each group can be stored 4 current
or voltage values. A B C D Lock Prog
Press
C
key to confirm the store A OFF Shift
group selected.
Store Operation
After the voltage or current value has been set, press
Shift
and
A
(Save) key, the
cursor A B C D will wink together. Press
A
/
B
/
C
/
DV/A
key to save it.
Recall Operation
Press
S tShift
and
B
(Prog) key,
Prog light will bright, that means you can
recall the parameter from the store group. Press
A
/
B
/
C
/
DV/A
key to recall the parameter which has been saved.
DV/A
When the power supply is on recall operation,
A
B
C
keys are disabled, they only can be used with
iftShift
key. If you want to exit
recall function, please press
fShi tft
and
B
(Prog) key.
Fault Disposal
If the output is disabled
1. Check the voltage and current value are zero or not. If they are zero, please
set voltage and current value again.
2. Check the light OFF is bright or not. If it is bright, please press
fOn/Off
key to
make the output state on.
3. Check the light OVP OCP is bright or not. If they are bright, please set
OVP/OCP value again.
If pressing keys are disabled
Check the light Lock is bright or not. If it is bright, please disable the key
lock function.

Specification
Specs
Specifications IT6720
Output Rating Voltage
Current
Load Regulation Voltage
Current
Line Regulation Voltage
Current
0~60V
<0.01%+3mV
<0.01%+3mA
<0.01%+3mV
<0.1%+3mA
0~5A
Power 100W
Programming Accuracy Voltage
Current <0.05%+10mV
<0.2%+2mA
Read back Accuracy Voltage
Current
Ripple Current
Voltage
<0.05%+10mV
<0.1%+2mA
<2.0mV rms
<5mA rms
Dimension (mm) 88W*175H*282D
W*H*D
Weight Net <2.5Kg