Unit UT5300X+ Series User manual

User’s Manual UT5300X+ and UT5320R-SxA Series
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User’s Manual
UT5300X+ and UT5320R-SxA Series Programmable Hipot Tester

User’s Manual UT5300X+ and UT5320R-SxA Series
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Preface
Thank you for purchasing UNI-T programmable withstand tester. In order to use this product safely and correctly,
please read this manual thoroughly, especially the safety notes.
After reading this manual, it is recommended to keep the manual at an easily accessible place, preferably close to
the device, for future reference.
Copyright Information
Copyright is owned by Uni-Trend Technology (China) Co., Ltd.
UNI-T products are protected by patent rights in China and other countries, including issued and pending patents.
Uni- Trend reserves the rights to any product specification and pricing changes.
Uni-Trend Technology (China) Co., Ltd. all rights reserved. Licensed software products are owned by UNI-T and its
subsidiaries or providers, which are protected by national copyright laws and international treaties.
Information in this manual supersedes all previously published versions.
UNI-T is the registered trademark of Uni-Trend Technology (China) Co., Ltd.
Warranty Service
The instrument has a warranty period of one year from the date of purchase. If the instrument is damaged due to
improper operation by the user during the warranty period, the maintenance fee and the costs caused by the
maintenance shall be borne by the user, and the instrument shall be maintained by the company for life.
If the original purchaser sells or transfers the product to a third party within one year from the date of purchase of
the product, the warranty period of one year shall be from the date of the original purchase from UNI-T or an
authorized UNl-T distributor. Power cords, accessories and fuses, etc. are not included in this warranty.
If the product is proved to be defective within the warranty period, UNI-T reserves the rights to either repair the
defective product without charging of parts and labor, or exchange the defected product to a working equivalent
product (determined by UNI-T). Replacement parts, modules and products may be brand new, or perform at the
same specifications as brand new products. All original parts, modules, or products which were defective become
the property of UNI-T.
The "customer" refers to the individual or entity that is declared in the guarantee. In order to obtain the warranty
service, “customer “must inform the defects within the applicable warranty period to UNI-T, and perform
appropriate arrangements for the warranty service.
The customer shall be responsible for packing and shipping the defective products to the individual or entity that
is declared in the guarantee. In order obtain the warranty service, customer must inform the defects within the
applicable warranty period to UNI-T, and perform appropriate arrangements for the warranty service. The
customer shall be responsible for packing and shipping the defective products to the designated maintenance
center of UNI-T, pay the shipping cost, and provide a copy of the purchase receipt of the original purchaser. If the
products is shipped domestically to the purchase receipt of the original purchaser. If the product is shipped to the
location of the UNI-T service center, UNI-T shall pay the return shipping fee. If the product is sent to any other
location, the customer shall be responsible for all shipping, duties, taxes, and any other expenses.

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Limited Warranty and Liability
The warranty is inapplicable to any defects, failures or damages caused by accident, normal wear of components,
use beyond specified scope or improper use of product, or improper or insufficient maintenance. UNI-T is not
obliged to provide the services below as prescribed by the warranty:
a) Repair damage caused by installation, repair or maintenance of personnel other than service representatives
of UNI-T;
b) Repair damage caused by improper use or connection to incompatible equipment;
c) Repair any damages or failures caused by using power source not provided by UNI-T;
d) Repair products that have been changed or integrated with other products (if such change or integration
increases time or difficulty of repair).
The warranty is formulated by UNI-T for this product, replacing any other express or implied warranties. UNI-T and
its distributors refuse to give any implied warranty for marketability or applicability for special purpose. For
violation of the warranty, repair or replacement of defective products is the only and all remedial measure UNI-T
provides for customers.
No matter whether UNI-T and its distributors are informed of any possible indirect, special, occasional or
inevitable damage in advance, they assume no responsibility for such damage.
Safety Precautions
Warning Dangerous：Please follow the following guidelines to avoid possible electric shock and risk to personal
safety.
Users must follow the following conventional safety precautions in operation, service and maintenance of this
device. UNI-T will not be liable for any personal safety and property loss caused by the user’s failure to follow the
following safety precautions.
Instrument grounding
To prevent the risk of electric shock, please connect the power ground
wire.
Operating voltage
Please make sure operating voltage under rated range of 10%, to avoid
damage the instrument.
Select connecting wire
Please use suitable electric wire to connect load and power to be
measured.And ensure that the capacity of the electric wire can
withstand the maximum shortcircuit current and not be overheat.
Input voltage
Before connecting the instrument, please read all the marks on the
instrument. This instrument is support AC input of 110 V and 220 V.
Please check the convert switch of programmable withstand tester
whether is match with the input power before power on. And be sure the
fuse is installed. Otherwise, it may damaged to the withstand tester.
Do Not
operate in an explosive atmosphere
Do not use the instrument in flammable and explosive gas, steam or
dusty environment.
The use of any electronic equipment in such an environment is a risk to
personal safety.

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Do Not
open the outer shell
Please do not open the outer shell of withstand tester. Only qualified
maintenance personnel can open the outer shell. The instrument is still
has unreleased electric charge for a period after power off, it may cause
electric shock to person.
Do Not
operate the instrument when it is
abnormal
If the instrument can not work properly, the dangerous is unpredictable.
Please cut off the power wire and do not use the instrument. Do not
attempt to fix it by yourself.
Do Not
operate the instrument out of the
requirement of the manual
If operate the instrument out of the requirement specified in this
manual, the protective for the instrument will be failure.
It is strictly prohibited to use this equipment on life support system or
any other equipment with safety requirements.
Do Not
replace the component or execute
unauthorized modification
In order to guarantee the safety of this instrument, please do not
replace the component or execute any unauthorized modification.
Do not operate the instrument if the outer shell is removerd or loose.
Safety Sign
Direct Current
Netrual/Zero Line
Alternating Current
Live Line
Both Direct and
Alternating Current
ON (Power)
Three Phase AC
OFF(Power)
Grounding
Backup Power
Protective Grounding
Connect with Cabinet or Case
Signal Ground
Warning or Caution
Dengerous
Environment-friendly Use Period
EFUP is the period of time before any of the RoHS substances are
likely to leak out, causing possible harm to health and the
environment. EFUP of this instrument is 40 years, it should be
recycling system when exceed 40 years.
Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC
Must not be discarded in the trash can.

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1. Safety Regulation
This chapter includes the following contents.
Workstation Arrangment
Operator Regulation
Prohibitied Operation
Dayily Inspection for guarantee long-term use without failures
1.1 Workstation Arrangment
Position of Workstation
Workstation should arrange in a capacious filed that is not necessary for general personnel, so that non-staff
members are far away from the workstation. The workstation must separate from other facilities and it need to
indicated particularly “High Voltage Test Worksation”. During the testing, it must indicate “DANGER! Stay Away!”
Input Power
Be sure to connect the instrument to ground for keep safe. The power supply of the workstation should have a
separate siwth. The switch need to install in the prominent position on the entrance and marked with special
sign to let people know this is the power switch of the workstation. Once an emergency accident happens, the
switch can be shut down immediately and then deal with the accident.
Workplace
An insulated worktable or workbench is must, any mental can not be used between operator and DUT. When
design the workdfiled, it is not allowed that the operator across the DUT to operating the test instrument. The
workplace should be tidy and clean. Unused instrument and test wire should put in a fixed position, make sure
that all personnel can immediately distinguish the parts under test, to be tested and tested. The test station and
its surrounding can not have flammable and corrosive gas and the tester can not be used near the flammable
substance.
1.2 Operator Regulation
Qualification of Personnel
The operating of this series tester is dangerous, misoperation will cause injury to personnel, and this injury is
even life-threatening. So the user must be trained and strictly follow the user’s manual.
Safety Regulation
The operator must be given safety education and training at any time to understand the importance of various
safety operations and follow the safety regulation to operating the tester.
Dress Code
The operator shall not wear clothes with metal decoration, metal bracelet and watch, these metal ornaments
may cause accidental electrical shock. The operator must wear the insulation gloves when operating the tester.
Medical Regulation
It must not be allowed the personnel who has heart disease or wear heart rate regulator and cardiac pacemaker
to operating the tester.

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1.3 Prohibited Operation
Do not turn on/off the power repeatedly
After turning OFF the power switch, be sure to allow several seconds or more before turning it ON again. Do not
repeat turning ON/OFF the power switch rapidly. If you do this, the protective measures of the tester may not
be functioned properly. Do not turn OFF the power switch when the tester is delivering its test voltage–you may
do this only in case of emergency.
Do not short the output to the earth ground
Pay attention so that the high test voltage line is not shorted to a nearby AC line or nearby devices (such as
conveyors) which are connected to an earth ground. If it is shorted, the tester chassis can be charged up to the
hazardous high voltage.
Do not apply an external voltage
Do not connect any external voltage to the output port of the instrument. The instrument has no external
discharge function in non-discharge condition,
The analog voltmeter on the front panel cannot be used as stand-alone voltmeter. They may be damaged if their
output terminals are subject to an external voltage. The output port connect to the external voltage may cause
damage to the instrument.
1.4 To Ensure Long-Term Use without Failures
It is recommend to use the instrument in the range as follows.
Ambient
Temperature
Maximum Output Power
Pause Time
Limited Output
Time
T≤40℃
AC
Withstand
Voltage
>12mA
(UT5320R+/S4A/S8A)
>6mA (UT5310A/D/R+)
At least as long as the
output time
Maximum of
120 seconds
DC
Withstand
Voltage
>6mA
(UT5320R+/S4A/S8A)
>3mA (UT5310A/D/R+)
At least as long as the
output time
Maximum of
120 seconds
Note: Output time = (voltage rise time + test time + voltage fall time)
1.5 Daily Inspection
To avoid accidents, confirm the several things at least the following before starting operation:
1. The input power source complies with the standard and the tester’s power configuration is correct.
2. The tester is connected to earth ground.
3. The coating of the high-voltage test lead wire is free from cracks, fissures, and breakage.
4. Without connecting the test lines, the instrument can finish the test successfully when starting test by default.
5. The tester generates FAIL signal when the test wire is start to testing, low-voltage end of test lead contact with
high-voltage end.

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2. Product Overview
Thank you for purchasing UNI-T programmable hipot tester.
This chapater includes the contents as follows.
Product Series
Front Panel
Rear Panel
2.1 Product Overview
UT5300X+ series hipot tester includes model UT5310A+,UT5310D+,UT5310R+,UT5320R+, and UT5320R-SxA series
hipot tester includes model UT5320R-S4A and UT5320R-S8A.
UT5300X+ and UT5320R-SxA series is a combination of electrical strength (AC/DC withstand voltage),
insulation resistance of various test functions in one instrument. It can be widely used in household
electrical appliances, transformer, electrical equipment and security performance checking of
component.
Model
Function
UT5310A+
AC programmable hipot tester (10 mA), single channel
UT5310D+
AC/DC programmable hipot tester (10 mA), single channel
UT5310R+
AC/DC/IR programmable hipot tester (10 mA), single channel
UT5320R+
AC/DC/IR programmable hipot tester (20 mA), single channel
UT5320R-S4A
AC/DC/IR programmable hipot tester (20 mA), four channels
UT5320R-S8A
AC/DC/IR programmable hipot tester (20 mA), eight channels
UT5310A+ can provide withstand voltage test 5 kVAC/10 mA.
UT5310D+ can provide withstand voltage test 5 kVAC/10 mA and 6 kVDC/5mA.
UT5310R+ can provide withstand voltage test 5 kVAC/10 mA, 6 kVDC/5mA and insulation resistance test 2.5
kVDC/10 GΩ.
UT5320R+ can provide withstand voltage test 5 kVAC/20 mA, 6 kVDC/10 mA and insulation resistance test 2.5
kVDC/10 GΩ.
UT5320R-S4A/S8A adds scan module of 4 channels /8 channels double end and with touch inspection function
based on UT5320R+.
Rapid Test
This series tester has high performance 32 bits ARM microprocessor, it can measure various safety regulation
paramters of DUT in real-time and especially for the rapid test of the product line.
Easy Operation
This series tester has 4.3 inch ture color LCD, it can use variety of physical keys and digital keyboard to quickly
set test conditions and complete the test. It’s very easy to operate.
Intelligent Judgement
This series has intelligent judgement of upper and lower limit, it can automatic judge the defects and with
audible and visual alarm.

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Reailable Operation
This series tester use full isolation measures between the entire circuit modules, it has strong anti-interference
ability. High voltage module is DA standard, controllable sine wave generator, class AB power amplifier, 40~600
Hz step-up high tension transformer, and close-loop control of output voltage with hardware and software
protection, which greatly improving the reliability of the instrument.
Safety Use
Ground wire current detection, short-circuit detection, electric arc detection, DC quick discharge, automatic
over-voltage, over-current protection. All of these function are designed for safety use.
File Management
It can programme 100 test files and each file can have 20 test items.
Various Interface
This series equipped with Handler (PLC) interface for industrial control, RS485 (option), RS-232C and LAN
interface for PC connection, and supports SCPI and Modbus RTU communication protocols to efficiently
complete remote control and data acquisition functions, so the instrument can suitable for the needs of
multiple different automatic test system.
2.2 Front Panel
Figure 1-2-1 Front Panel (Take UT5320R-S8A as an example)
(It is suitable for UT5310A+/D+/R+/UT5320R+/UT5320R-S4A)
Table 1-2-1 Front Panel
No.
Name
Description
1
Power switch
Turn on/off the power of programmable hipot tester.
2
USB interface
It is to connecting USB disk flash. It supports file system of FAT16 and
FAT32 and also support firmware upgrade, record test data, save
screen image and storage and reload test parameter file.
3
Output voltage high-end
Test the high-end of output voltage
4
Output voltage low-end
Test the hlow-end of output voltage
5
Indicator light
Ready/Start/Caution/Pass/Fail indicator light
6
Function key
Save key

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Print SC key
LOCK key
7
Digital key
Full function digital/character keyboard is to input data or enter
characters when requested for note information such as file name.
8
Main menu key
Arrow key
Test key is to display the measured result and for selection.
Setup key is to set test condition and for selection.
Arrow key
Ese key
Enter key
9
Function soft key
It divide into five keys, it has different function on different menu. The
corresponding function will display on the right side of menu area.
10
Trademark and model
Model label
11
STOP key
STOP key is to stop the test or cancle the hint of PASS, FAIL.
12
START key
START key is to start the test, once the test is running, CAUTION,
START indicator light will be sparkling.
13
Multiple channel’s scan
interface
Only for UT5320R-S4A (4 channels) and UT5320R-S8A (8 channels).
Warning：Do not touch the test port during the test.
Note：If apply an external voltage to the test port, it may cause damage to the instrument’s internal circuit.
2.3 Rear Panel
Figure 1-3-1 Rear Panel
Table 1-3-1 Introduction of Rear Pane
No.
Name
Description
1
Cooling fans
The cooling fans needs continuous work, so please maintain a good
exhaust and heat dissipation space behind the back panel.
2
SIGNAL interface
This interface is the output interface of online protection and internal
24 V power.

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<System Setup> page，if [Safety Lock] function is enabled, then the
external should provide online lock signal. Otherwise, this instrument
is not allowed to start the test.
3
HANDLER interface
Remote signal input/output terminal.
It can input the control signal of RESET and START.
Use RELAY junction to output the signal of PASS, FAIL and TEST.
4
LAN interface
Connect when using a LAN interface.（Only for
UT5310R+/20R+/S4A/S8A）
5
RS-232C interface
/RS-485 interface
（option）
Serial communication interface is to communicate with the PC.
6
Protective ground terminal
Chassis ground terminal. Before operating the instrument, please
make sure that the ground is properly connected.
7
AC 220/110 adaptor
Voltage scale switch of AC, the instrument is only support two voltage
modes of 110V and 220V.
8
Input power socket
Standard IEC 320 power socket for connection to NEMA standard
power cord.
9
Fuse socket
If nned to change the fuse, please replace the standard fuse.

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3. Inspection and Installment
This chapater includes the contents as follows.
Packing List
Power Requirements
Operation Environment
Key Points When Moving the Instrument
Cleaning
Power on
3.1 Packing List
Before use the instrument please checke
1．Inspect the product’s appearance whether has damage, scratch or flaws;
And confirm the instrument’s model, this series divided into several withstand votltage tester as
shown the following table.
Model
Function
UT5310A+
AC programmable hipot tester (10 mA), single channel
UT5310D+
AC/DC programmable hipot tester (10 mA), single channel
UT5310R+
AC/DC/IR programmable hipot tester (10 mA), single channel
UT5320R+
AC/DC/IR programmable hipot tester (20 mA), single channel
UT5320R-S4A
AC/DC/IR programmable hipot tester (20 mA), four channels
UT5320R-S8A
AC/DC/IR programmable hipot tester (20 mA), eight channels
2．Inspect appendix for the list of accessories.
If any of the accessories are missing or damaged, please contact UNI-T or local distributors of this
product.
Item
Quantity
Remarks
Programmable hipot tester
1pcs
The model is subject to the actual order
Power cable
1pcs
RS232C communication wire
1pcs
High voltage test probe
1pcs
High voltage test clip (red and black)
1 pair
Double head high voltage test wire (with
clips)
1 pair
Only for UT5320R-S4A/S8A
Double head high voltage test wire
Match with
the channel
Only for UT5320R-S4A (4 wires) /S8A (8 wires)
Factory calibration report
1pcs
User’s Manual
1pcs
Electronic file, it can be download form UNI-T
official website
Fuse
2pcs

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3. Introduction of test wire
Model
Name
Standard/Option
Picture
/
A pair of high voltage test clips
Standard
/
High voltage test probe
Standard
/
Double head high voltage test wire
(no clips)
Standard
(multiple
channels)
/
Double head high voltage test wire
(with clips)
Standard
(multiple
channels)
/
Single head high voltage test wire
(no clips)
Option
UT-L62
Remote high voltage test wire
(support remote boot)
Option
3.2 Power Requirements
This instrument is designed for use under classⅡvoltage. Do not use under overvoltage class Ⅲand
Ⅳ.
Before start the power, please make sure that power voltage is conform to AC SELECTOR on the rear
panel of the instrument.
Input Voltage
Frequency
Range
Fuse
Model
Rated Power
110 V
47-63 Hz
5 A
UT5320R+/S4A/S8A
400 VA
110 V
3 A
UT5310A/D/R+
300 VA
220 V
3.15 A
UT5320R+/S4A/S8A
400 VA
220 V
2 A
UT5310A/D/R+
300 VA
Warning:
•In order to prevent the electric shock, please connect the power groud in properly. If user replace the
power cable, please make sure that the power ground is reliable connected.
•In order to prevent the electric shock, turn off the power and plug the power cable before checking or
replacing the fuse.
3.3 Operating Environment
UT5300X+ and UT5320R-SxA Series operating environment
Temperature：10C～40C
Humidity：10%-80%RH

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3.4 Key Points When Moving the Instrument
When moving or transporting the instrument, please follow the protective measures.
Before moving the instrument, turn off the power switch.
If move the instrument under power on status, it may cause electric shock and damage.
Before moving the instrument, cut off all the connected cables.
If move the instrument with all the connected cabled, it may damaged to the connected wire or overturn
the instrument.
3.5 Cleaning
In order to prevent the electric shock, please plug the power cable before cleaning.
Please use a damp but not dripping soft cloth to wipe the chassis and panel, keep it dry and no water shall
into the instrument.
Do not clean the internal of the instrument.
3.6 Power on
3.6.1 Initial Power on
After confirm the instrument is intact and installed in properly, please inspect it as the following steps.
1) Only connect the power cable of the instrument and not connect other test wires, and then turn on the
tester’s power switch;
2) After the instrument enters the measurement interface, press START key directly to test, the test status
should be
a) Insulation resistance display >10 GΩ;
b) Withstand voltage display is small striking current or zero.
Then it indicates the instrument is basically normal.
If there is no display when boot the instrument for the first time, please checke whether the power cable is
connected;
If there is no power on, no key respond or no relay action sound, please contact UNI-T for technical support
3.6.2 Prepare Test Wire
1) Connect the red high voltage test clip (or high voltage test probe) to L, N of DUT;
2) Connect the test return conductor to the ground or chassis of DUT.

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4. Measurement Display
This chapater includes the contents as follows.
On-screen Display
Sataus Bar
Test Result
Screenshot
Keyboard Lock
4.1 On-screen Display
When high voltage stops to output, press [Test] key to enter <Measurement> page. High voltage only can be
activated in measurement page.
<Meas Setup> page is to display the measured result and judement result;
LCD will divide into several areas to display the corresponding information when enters the test mode.
Figure 4-1 Test Interface of Single Channel
Figure 4-2 Test Interface of Multiple Channels (Take S4A as an example)

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4.1.1 Test Interface
No.
Name
Function Description
1
Test parameter
Display test parameter and status.
2
Time display
Display real-time voltage, current and test time.
3
Mode selection
(soft keyboard)
For select the operating mode of programmable hipot tester.
Activate the key function in other interface at the bottom of the screen.
4
Status bar
Display data, user’s name and icon.
5
Channel setting
(only S4A/S8A)
Connect to high-end, low-end or cut-off.
4.2 Status Bar
Figure4-3 Icon of Status Bar
Table 4-1 Description of Status Bar
No.
Icon
Description
①
START boot-up key on the front panel, it’s only activated when start mode is
local in system setup.
PLC boot-up key, it’s only activated when start mode is PLC in system setup.
②
It indicates RS-232 interface is activated.
It indicates RS-485 interface is activated.
It indicates LAN interface is activated.
③
It indicates the file name of the current test file.
④
It indicates the key is locked.
⑤
It indicates U flash disk is ready to use.
⑥
It indicates the internet is connected.
⑦
It indicates sorting sound and key sound.
It indicates sorting sound and key sound are both forbidden.
It indicates only key sound is enabled.
It indicates only sorting sound is enabled.
⑧
It indicates time display.

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4.3 Test Result
Only in the measurement display interface can start high voltage to measure DUT, its test parameters must be
set in the measurement interface.
Figure 4-4 Test is Qualified
1) After the test is boot-up, two big characters displays on the middle of the screen is the real-time test data.
The upper part is output voltage of high voltage, unit of withstand voltage is kV.
The lower part is measured current value of the test low-end or insulation resistance value of DUT.
2) The middle area at the bottom of the screen is displays the test status and judgement result.
The right side at the bottom of the screen is displays the left time of high voltage test. If user select the
continuous test, then it will display the test time not greater than 999.9s.
3) Judgement of test result
a) For the withstand voltage test, the test result of the upper/lower limit of striking current can be judged at
any time.
b) For the insulation resistance test, it will judge the result when the test time is near to close.
4) Description table of failed test and abnormal protection
Judgement Result
Description
Over the upper limit
It indicates the measured value is greater than the upper limit.
Over the lower limit
It indicates the measured value is less than the lower limit.
Short-circuit
The output current of the instrument is greater than the setting current limit
of the internal, which is unalterable.
Electric arc
When testing AC/DC withstand voltage, the current arc is over the upper
limit of electric arc.
Groud failed
Groud is break off and failed.
the lower limit of charge
When testing DC withstand voltage/insulation resistance, the current is
lower than the setting minimum charge current.
Overvoltage
Output voltage is greater than the setting output voltage.

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4.4 Screenshot
The instrument has screenshot function. Plug USB to the interface on the front panel of the instrument, press
[Print Sc] key to screenshot the current screen’s image and save it into USB for later use.
It is recommend to plug branded U flash disk to the interface of the instrument. The format is FAT32, maximum
capacity 128G.
4.5 Lock Keyboard
In order to prevent to change the test condition accidentally, the instrument has lock keyboard function. Short
press
[Lock] key on the panel to lock the keyboard; long press 1s [Lock] key to unlock the keyboard.
a) In system setup, when adjustable mode is disabled, the instrument is only respond to START, STOP and
LOCK key when the keyboard is locked.
b) In system setup, when adjustable mode is enabled, the instrument is only respond to START, STOP, LOCK
and fine tunning key of output voltage in <Measurement> page when the keyboard is locked.

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5. Measurement [Setup]
This chapater includes the contents as follows.
Editing the Test Steps
Test Mode
Parameter Setting of AC Withstand Voltage
Parameter Setting of DC Withstand Voltage
Parameter Setting of Insulation Resistance
When high voltage output is stop, press [Setup] key to directly enter the setting page of measurement.
5.1 Editing the Test Steps
Figure 5-1【Meas Setup】
As shown in Figure 5-1, test step: 01/01 respresents test step: the currently setting item number / total test
item numbers.
The instrument is support the maximum total test item numbers are 20 steps.
Set Test Step
Step 1
Press [Measurment Setup] key to enter setup page;
Step 2
Use cursor key to select [Test Step] field;
Step 3
Use function key to select.
Function Key
Function
INS
Add a new test item after this item, the sequency of new added item and the following item
move back one bit.
DEL
Delete the current test item, the sequency of the following item move forward one bit.
NEW
Create a new test plan, the syste, will automatically create a default test item.
UP
Access the parameter of the step preceding the current step.
DOWN
Access the parameter of the step following the current step.

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5.2 [Test Mode] Setup
Press [Meas Setup] key to enter setup page, use cursor key to select [Test Type] field, and use function key to
select
[ACW] to set the current item to AC withstand voltage test and all parameters sets to default value.
[DCW] to set the current item to DC withstand voltage test and all parameters sets to default value.
[IR] to set the current item to insulation resistance test and all parameters sets to default value.
5.3 Parameter Setting of AC Withanstand Voltage
Figure 5-2【Meas Setup】
Item
Input Range
Default Value
Description
Volatge
(0.050~5.000) kV
0.050kV
Output voltage during AC withstand voltage test.
HI-Limit
(0.001～20.00) mA
1mA
UT5320R+/S4A/S8A, the upper limit of striking current
alarm.
(0.001～10.00) mA
UT5310A/D/R+, the upper limit of striking current
alarm.
LO-Limit
0.001 mA~ the upper
limit, OFF
OFF
The lower limit of striking current alarm.
Dwell Time
(0.1~999.9)s,
continous test
0.5 s
Test time of the currently setting item.
Ramp Up
(0.1~999.9)s
0.5 s
Rated voltage to rising slowly based on this period.
Ramp Down
(0.1~999.9)s，OFF
0.5 s
Rated voltage to falling slowly based on this period.
Arc Sense
1~9 class, OFF
OFF
Alarm class of electric arc test. The size of electric arc
alarm class can be preset and judge, the preset range
is OFF, 1~9 class; OFF indicates the electric arc
detection function is disabled, 9 class is the most
sensitive, peak current of each alarm class as shown
in the following table.
Class of Electric Arc
Threshold Peak
Current (mA)
9
2.8
8
5.5
7
7.7
6
10
5
12

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4
14
3
16
2
18
1
20
Frequency
50 Hz, 60 Hz
50 Hz
Output frequency of AC withstand voltage.
Range
Auto, fixed
Fixed
Set current scale to auto or fixed scale.
If the current range sets to [Auto], the instrument will
automatically select the proper current scale.
If the current range sets to [Fixed], it is necessary to
set a value at the upper limit of the current to
determine the current scale, which aims to shorten
the test time. It is the best way for sorting test.
Offset
OFF, auto test
OFF
Set leakage current to zero clearing.
Press [Auto Test] key on sidebar to automatically
measure the leakage current of test wire and test
fixture and to zero clearing. At this point, DUT must be
removed from the test line.
Press [OFF] key to clear.
5.4 Parameter Setting of DC Withanstand Voltage
Figure 5-3【Meas Setup】
Item
Input Range
Default
Value
Description
Volatge
(0.050~6.000) kV
0.060 kV
Output voltage during DC withstand voltage test.
HI-Limit
0.1uA～10.00 mA
1 mA
UT5320R+/S4A/S8A, the upper limit of striking current
alarm.
0.1uA～5.00 mA
UT5310A/D/R+, the upper limit of striking current alarm.
LO-Limit
0.1uA ~ the upper limit，
OFF
OFF
The lower limit of striking current alarm.
Dwell time
(0.1~999.9)s，continous
test
0.5 s
Test time of the currently setting item.
Ramp up
(0.1~999.9)s
0.5 s
Rated voltage to rising slowly based on this period.
Ramp down
(0.1~999.9)s，OFF
0.5 s
Rated voltage to falling slowly based on this period.
Arc sense
1~9 class，OFF
OFF
Alarm class of electric arc test.
Range
Auto, fixed
Fixed
Set current scale to auto or fixed scale.