Model UT513: OPERATING MANUAL

Model UT513
OPERATING
MANUAL
Table of Contents
Title Page
 Model UT513: OPERATING MANUAL

Introduction 5
Unpacking the Meter 5
Safety Information 6
International Electrical Symbols 8
Battery Saver (Sleep Mode) 8
Battery Indication 8
The Meter Structure 9
Display 12
Key Functions 14
Measurement Operation 17
A. Measuring Voltages 17
B. Measuring Insulation Resistance 19
a) Continuous Measurement 20
b) Timed Measurement 20
c) Polarization Index (PI) Measurement 21
d) Compare Function 22
The Use of Power Adaptor 23
Title Page

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USB Interface 24
Maintenance 25
A. General Service 25
B. Replacing the Battery 26
Specifications 27
Safety and Compliances 27
Physical Specifications 27
General Specifications 28
Feature Summary 28
Detailed Accuracy Specifications 29
A. Voltage Measurement 29
B. Insulation Resistance Measurement 30
List of Tables

Table Title Page

1. Unpacking 5
Inspection 8
8
10
11
13
2
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Model UT513: OPERATING MANUAL Model UT513: OPERATING MANUAL

2. International Electrical Symbols

3. Battery Indication
4. Meter Front Description
5. Meter Side Description
6. Display Description
7. Key Description
List of Figures
Figure Title Page

1. The Meter Front Structure 9

2. The Meter Side Structure 11
3. Display 12
4. Voltages Measurement 17
5. Insulation Resistance Measurement 19
6. The Use of Power Adaptor 23
7. USB Interface Connection 24
8. Battery Replacement 26
Introduction Table 1. Unpacking Inspection

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Model UT513: OPERATING MANUAL

Item Description Qty

Uni-Trend Model UT513 insulation resistance tester
(hereafter, ìthe Meterî) is a handheld instrument designed 1 English Operating Manual 1 piece
primarily to make resistance/ insulation resistance 2 One plug test lead to one 1 piece
measurement. alligator clip (Black colour)
3 One plug test lead to one 1 piece
Unpacking the Meter alligator clip (Green colour)
The Meter includes the following items: 4 Two plugs test lead to one 1 piece
alligator clip (Red colour)
5 1.5V Battery (LR14) 8 pieces
6 Tool Box 1 piece
7 USB Interface Cable 1 piece
8 Software 1 piece
9 Power adaptor (input voltage 1 piece
230V, 50/60Hz, 75mA, output
DC14V, 1.0A)(optionally,
available at extra cost)

In the event you find any missing or damage, please

contact your dealer immediately.

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 Model UT513: OPERATING MANUAL

Safety Information Danger identifies conditions and actions that

This Meter complies with the standards IEC61010 pose hazard(s) to the user.
safety measurement requirement: in pollution degree Warning identifies avoiding electric shock.
2, overvoltage category (CAT. III 600V) and double Caution identifies conditions and actions that
insulation.
may damage the Meter and carrying out accurate
CAT II: Local level, appliance, PORTABLE measurement.
EQUIPMENT etc., with smaller transient voltage Operating Caution identifies conditions that user
overvoltages than CAT. III needs to take extra care during operating the

Use the Meter only as specified in this operating Meter

manual, otherwise the protection provided by the International electrical symbols used on the Meter
Meter may be impaired. and in this Operating Manual are explained on page
8.

5
 Danger
Use of instrument in a manual not specifed by
the manufactuer may impair safety
features/protection provided by the equipment.
Read the following safety information carefully
before using or servicing the instrument.
Do not apply more than 600V.
Do not use the Meter around explosive
gas, vapor or dust.
Do not use the Meter in a wet
environment. When using the test leads,
keep your figures away from the lead contacts.
Keep your figures behind the finger guards on
the leads. Do not use the Meter with any
parts or cover removed.

Model UT513: OPERATING MANUAL

6
 When carrying out insulation measurement, When performing resistance tests, remove all
do not contact the circuit under test. power from the circuit to be measured and
discharge all the power.
Warning
When servicing the Meter, use only the same
Do not use the Meter if it is damaged or metal model number or identical electrical
part is exposed. Look for cracks or missing specifications of test leads and power
plastic. adaptor. Do not use the Meter if the battery
Be careful when working above 33V rms, indicator
46.7V ac rms or 70V DC. Such voltages ( ) shows a battery empty condition. Take
pose a shock hazard. the battery out from the Meter if it is not
Discharge all loading of circuit under test used for a long time.
after measuring high voltage. Do not use or store the Meter in an
Do not change battery when the Meter is in environment of high temperature, humidity,
wet environment. explosive, inflammable and strong magnetic
Place test leads in proper input terminals. field. The performance of the Meter may
Make sure all the test leads are firmly deteriorate after dampened.
connected to the Meterís input terminals. Soft cloth and mild detergent should be used
Make sure the Meter is turned off when to clean the surface of the Meter when
opening the battery compartment. servicing. No abrasive and solvent should
be used to prevent the surface of the Meter
Caution from corrosion, damage and accident.
Dry the Meter before storing if it is wet.

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 Model UT513: OPERATING MANUAL

International Electrical Symbols Battery Saver (Sleep Mode)

International symbols on the Meter and in this manual The Meter enters the Sleep Mode and blanks the
are explained in Table 2. display if there is no button press for 15 minutes. This
Table 2. International Electrical Symbols is done to conserve battery power. The Meter comes
out of Sleep Mode when ON/OFF button is pressed
and hold for 1 second.
Battery Indication
There is a battery indicator shows on the display
upper left hand corner. Below Table 3 is the
explanation:
Table 3. Battery Indication
Battery Battery Voltage
Indicator
10V or less. It means the battery is
empty, donít use the Meter as it
cannot guarantee accuracy.

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Model UT513: OPERATING MANUAL Model UT513: OPERATING MANUAL

10V~10.5V. It means the battery is

nearly empty, replacing battery is
necessary. At this status, the Meter
can still do 500V and 1000V output
measurement, accuracy will not be
affected.

10.6V~11.5V

11.6V or more

The Meter Structure

Below Figure 1 and Table 4 shows the Meter front Figure 1. The Meter Front Structure
structure and description
Table 4. Meter Front Description
1 LCD 17 Up Button
2 Scroll Button 18 LINE: High Voltage output input terminal
3 Emergency Stop (two plugs red test lead to one alligator clip)

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Model UT513: OPERATING MANUAL

4 Data Clear the Display Backlight Button 19 High voltage line shielding input terminal
5 Down Button (two plugs red test lead to one alligator clip)
6 On/Off Button 20 GUARD: Grounding protection input
7 Compare Button terminal
(one plug black test lead to one alligator
clip)
8 Insulation Resistance Button 21 EARTH: High resistance measurement
9 DC Voltages measurement Button input terminal (one plug green test lead to
one alligator clip)
10 Timer Button.
11 AC Voltages measurement Button 22 Testing leads:
12 Test Button Two plugs red test lead to one alligator
13 USB Button clip. One plug black test lead to one
alligator clip. One plug green test lead to
14 Data Store Button.
one alligator clip.
15 Data Recall Button
16 Scroll Button
Below Figure 2 and Table 5 shows the Meter side Table 5. Meter Side Description
structure and description

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 Model UT513: OPERATING MANUAL

1 Safety Shutter
2 Power adaptor Input Terminal
3 USB Port

Figure 2. The Meter Side Structure

Display
Table 6 and Figure 3 describe the display.

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Model UT513: OPERATING MANUAL

Figure 3. Display
Table 6. Display Description

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 Model UT513: OPERATING MANUAL

Number Meaning Number Meaning

1 Indicator for DC voltage 12 Data recall is on
2 Indicator for data store full 13 Indicator for polarization index
3 Indicator for clearing 14 Unit symbols
4 Indicator for AC voltage 15 The continuity buzzer is on
5 Indicator for timer 16 Compare feature pass
6 Step symbol 17 Analogue bar graph
7 Indicates selected pass/fail compare
18 value
Risk of electric shock
8 Indicates for negative reading
19 Compare feature fail
9 Timer 1 symbol 20 Indicator for power adaptor
10 Timer 2 symbol 21 Battery life indicator
11 Data store is on
Key Functions
Table 7. Key Description
ON/OFF Turn on or off the Meter. Press and value.

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 hold the button for 1 second to turn LOAD Press once to recall the first stored
the Meter on. Press again to turn off value.
the Meter. Press again to exit Load feature.
The Meter default range is 500V Load feature can only be used
insulation resistance continuous when there is no high voltage output.
measurement when turning on. When the insulation resistance
measurement has no testing voltage
E-STOP Emergency stop button. Press this output, press to select one voltage
button when the Meter is hang and range up.
cannot turn off the power. Under load mode: press to recall the
CLEAR / Press to turn on or off the display previous stored value.
backlight
Press and hold to clear the stored data When the insulation resistance
measurement has no testing voltage
SAVE Press to store the current output, press to select one voltage
measurement value. The maximum range down.
number of stored reading is 18. Under load mode: press to recall the
When the stored readings memory is next stored value.
full, the Meter shows FULL and stop
storing. Press and hold CLEAR /
to clear the stored value in order to
store the next measurement

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Model UT513: OPERATING MANUAL

Table 7. Key Description

When set the timer duration for the increment the time. The
measurement of insulation maximum length of time is 30 minutes
resistance or polarization index, and 30 seconds, the Meter will
press to decrement the time. The automatically carry out measurement.
maximum length of time is 15 When use the compare feature
minutes and 30 seconds, the measuring insulation resistance, press
Meter will automatically carry out to increment a resistance comparing
measurement. value. After polarization index
When compare feature measuring measurement, press to display
insulation resistance, press to polarization index, TIME 2 insulation
decrement a resistance comparing resistance value and TIME 1 insulation
value. resistance value in sequence.
After polarization index
measurement, press to display
polarization index, TIME 2 USB Press once to start the data
insulation resistance value and transferring to the computer via
TIME 1 insulation resistance value USB, USB symbol shows on the
in sequence. display. Press again to stop the
When set the timer duration for the data transferring to the computer via
measurement of insulation USB, USB symbol disappears.
resistance or polarization index,

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 Model UT513: OPERATING MANUAL

press to
Table 7. Key Description
COMP Set a pass / fail limit
for insulation tests.
The default value is
10M
TIME Pres to step through
continuous
measurement, timed
measurement and
polarization index
measurement in
sequence.
TEST Press to stop or start
an insulation
resistance test
IR Press to initiate
insulation resistance
measurement
DCV Press to initiate DC
voltage

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Model UT513: OPERATING MANUAL

measurement
ACV Pres to initiate AC
voltage
measurement
Measurement Operation A.
Measuring
Voltages
Below section explains how to make measurements.

Press and hold ON/OFF to turn on the Meter, press again to

turn off the Meter. The Meter default range is 500V
insulation resistance continuous measurement when
turning on.

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 Model UT513: OPERATING MANUAL

Figure 4. Voltages Measurement

Operating Catuion
To avoid harms to you or damages to the Meter,
please do not attempt to measure voltages higher than
600V or 600V rms, although readings may be obtained.
Special care should be taken when measuring high voltage.
To measure voltages, set up the Meter as Figure 4 and do the
following:
1. Press DCV or ACV button to select DC voltage or AC voltage
measurement
2. Insert the red and green test lead into the tested circuit.
3. When measuring DC voltage, if the red test lead is negative
voltage, ì-ì symbol will show on the display.
Note
When voltage measurement has been completed, disconnect
the connection between the testing leads and the circuit under
test and remove testing leads away from the input terminals of
the Meter.

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Model UT513: OPERATING MANUAL

B. Measuring Insulation Resistance Figure 5. Insulation Resistance Measurement

Operating Caution

When performing insulation resistance tests,

remove all power from the circuit to be
measured and discharge all the power.
Operating the Meter must be very careful as
it outputs dangerous voltage during
measurement. Must make sure the tested
object is firmed clipped, hands are away
from the clips, then press TEST button to put
high voltage.
Do not short circuit the testing leads during
high voltages output or test insulation
resistance after high voltages output. This
kind of incorrect operating may cause
sparking and fire, which damages the Meter
and harms to you.
Do not measure over 10 seconds when:
500V measure resistance lower than 2M
1000V measure resistance lower than 5M
2500V measure resistance lower than 10M

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 Model UT513: OPERATING MANUAL

5000V measure resistance lower than 5. Connect the red and black alligator clip to the
20M circuit to be measured, negative voltage
To measure insulation resistance, set up output from LINE terminal.
the Meter as Figure 5 and do the 6. Choose below insulation resistance
following: measurement mode.
Press TIME button to select continuous
1. Press IR button to select insulation measurement mode, there is no timer icon on
resistance measurement. the LCD.
2. When there is no testing voltage Press and hold TEST button for 1 second to
output, press and button to carry out continuous measurement. Output
select voltages of 500V, 1000V, insulation resistance testing voltage, TEST
2500V or 5000V. button light up, blinks on every 0.5 seconds.
3. When performing insulation Press TEST button to close the insulation
resistance tests, remove all power resistance measurement voltage when
from the circuit to be measured and measurement is completed. TEST button lights
discharged all the power. off, disappears. The LCD shows the current
4. Insert the red test lead into the LINE insulation resistance measurement value.
input terminal and the black test lead
into GUARD input terminal.
Press TIME button to select timed measurement
mode, the LCD displays TIME 1 and symbols.

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Press and buttons to set the time buttons to set the time (00:10~15:00). Within 1
(00:10~15:00). Within 1 minute, the time minute, the time increment or decrement by
increment or decrement by every 5 every 5 seconds. Afterward, the time increment
seconds. Afterward, the time increment or decrement by every 30 seconds. Press TIME
or decrement by every 30 seconds. button again. TIME 2, PI and symbols appear
Then press and hold TEST button on the LCD.
for 2 second to carry out timed
measurement. TIME 1 and are
displayed and blinked on the LCD on
every 0.5 seconds.
When the set time is reached, the
insulation resistance measurement
voltage will be closed and the
measurement will be automatically
stopped. The LCD displays the
insulation resistance reading.

Press TIME button to select timed

measurement mode, the LCD displays
TIME 1 and symbols. Press and

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Model UT513: OPERATING MANUAL Model UT513: OPERATING MANUAL

Press and buttons to set the time resistance reading and TIME 2 insulation
(00:15~15:30). Within 1 minute, the time resistance reading.
increment or decrement by every 10
Information:
seconds. Afterward, the time increment
PI = 3 minutes ~10 minutes reading / 30 seconds
or decrement by every 30 seconds.
~1 minute reading
Then press and hold TEST button for 2
seconds to carry out timed PI 4 or more 4~2 2.0~1.0 1.0 or less
measurement. TIME 1 and are Standard The best Good Warning Bad
displayed and blinked on the LCD on Press COMP button to select compare feature.
every 0.5 seconds before TIME 1 set COMP symbol displays on the LCD..
time is reached. Press and buttons to set the compare value
TIME 2 and are displayed and blinked Below is the list in sequence of the compare
on the LCD on every 0.5 seconds before value:
TIME 2 set time is reached. 10M , 20M , 30M , 40M , 50M , 60M , 70M ,
When the two set time are reached, the 80M , 90M ,100M , 200M , 300M , 400M ,
insulation resistance measurement 500M , 600M , 700M , 800M , 900M ,1G ,
voltage will be closed and the
2G , 3G , 4G , 5G , 6G , 7G , 8G , 9G ,
measurement will be automatically
10G ,20G , 330G , 40G , 50G , 60G , 70G ,
stopped. The LCD displays the
80G , 90G , 100G ,200G , 300G , 400G ,
polarization index reading.
500G , 600G , 700G , 800G , 900G
Press , to set through the
polarization index, TIME 2 insulation

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Model UT513: OPERATING MANUAL

Press and hold TEST button for 2 The NG symbol will display if the insulation
seconds to carry out the measurement. resistance value is smaller than resistance
value.
Otherwise GOOD symbol will be displayed.
The Use of Power Adaptor 1.
The use of power adaptor, see figure 6 2.

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 Model UT513: OPERATING MANUAL

Figure 6. The Use of Power Adaptor Connecting the USB interface, see figure 7
Open the side safey shutter, then you will see there is a power
adaptor input terminal. Make sure the Meter is power off and Figure 7. USB Interface Connection
insert the UT513 power adaptor to the input terminal. It is 1. Install the included software, the installation
highly recommeded to take out all the batteries when you are guide can be seen from the CD.
using the power adaptor. Make sure the Meter is power off
2. Open the side safety shutter, then you will see
when you disconnect the UT513 power adaptor from the
there is a USB port.
Meter. It is highly recommeded to use Uni-Trend supplied
3. Insert the included USB cable to the Meterís
UT513 power adaptor to avoid dangerous.
USB port and the other end to the computer.
USB Interface

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Maintenance
This section provides basic maintenance information
including battery replacement instruction.

Warning
Model UT513: OPERATING MANUAL

Do not attempt to repair or service your Meter

unless you are qualified to do so and have the
relevant calibration, performance test, and
service information.
A. General Service
Periodically wipe the case with a damp cloth and mild
detergent. Do not use abrasives or solvents. To
clean the terminals with cotton bar with detergent, as
dirt or moisture in the terminals can affect readings.
Turn the Meter to OFF when it is not in use. Take out
the battery when it is not using for a long time.
Do not use or store the Meter in a place of humidity,
high temperature, explosive, inflammable and strong
magnetic field.
If the Meter is wet, dry it before use.
 Model UT513: OPERATING MANUAL

B. Replacing the Battery Donít mix to use old and new batteries. Be
careful the polarity is correct when installing
batteries.
Do not use the Meter if the battery indicator (
) shows a battery empty condition. Do
you carry out measuring during the battery
compartment is open.

Follow Figure 8 and proceed as follows to replace

the battery:
Turn the Meter to OFF and remove all
connections from the terminals.
Remove the screw from the battery
compartment, and separate the battery
compartment from the case bottom.
Replace with 8pcs of new 1.5V (LR14) batteries.
Figure 8. Battery Replacement Rejoin the case bottom and battery
compartment, and reinstall the screw.
Warning
To avoid electric shock, remove all the test leads
from the Meter when replacing the batteries.
Operating Caution
Model UT513: OPERATING MANUAL Model UT513: OPERATING MANUAL
Specifications Safety and Compliances
Certification
Compliances IEC 61010 CAT.III 600V overvoltage and double insulation standard
Physical Specifications
Display (LCD) Digital: 9999 counts
Analog bar graph.
Operating Temperature -10 ~40 (14 ~104 )
Storage Temperature -20 ~60 (-4 ~152 )
Relative Humidity 85% @ -10 ~40
below; 90% @ -20
~60 :
Battery Type 8pcs of 1.5V (LR14) batteries or power adaptor (input voltage 230V,
50/60Hz, 75mA, input DC14V, 1.0A).
Power adaptor is optionally at extra cost.
Dimensions (HxW xL) 202 x 155 x 94 mm
Weight Approx. 2kg (including battery)
General Specifications
Range Auto
Overloading Display OL on insulation resistance range
Battery Indicator Display

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Model UT513: OPERATING MANUAL
Icon Display Equips with function and battery indicator icons.
Current Consumption Maximum: around 1.0A
Average: around 20mA
Feature Summary
Display Backlight Bright backlight for clear readings in poorly lighted areas.
Computer connection Via USB interface.
Data Logging and Recall 18
Autorange The Meter automatically selects best range
Warning and red light will on.
Voltage Auto release voltage
COMP Measurement Use the Compare function to set a pass/fail compare level for the insulation
measurements.
PI Measurement Polarization Index is the ratio of insulation resistance. You can pre-set two
point of times and automatically carry out the measurement.
TIME To carry out measurement by setting a specified time within 15 minutes.
Detailed Accuracy Specifications
Accuracy: ([% of reading] + [number of least significant digits), guarantee for 1 year.
Operating temperature: 18 ~28 Relative
humidity: 45~75%RH

A. Voltage Measurement

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 Model UT513: OPERATING MANUAL
DC Voltage AC Voltage

Measurement 30 ~ 600V 30V~600V (50/60Hz)

Range
Resolution 1V
Accuracy (2%+5) Among them 30~100V(50/60Hz) (2%+8)

B. Insulation Resistance Measurement

Output Voltage 500V 1000V 2500V 5000V
Display Range 0.5M ~20G 2M ~40G 5M ~100G 10M ~1000G
Open Circuit DC 500V 0%~+ 20% DC1000V 0%~+ 20% DC 2500V 0%~+ 20% DC5000V 0%~+ 20%
Voltage
Test Current 1mA~1.2mA @ 500k 1mA~1.2mA @ 1M 1mA~1.2mA @ 2.5M 1mA~1.2mA @ 5M
Accuracy 0.50M ~99.9M : (3%+5) 2.0M ~99.9M : (3%+5) 5.0M ~99.9M : (3%+5) 10.0M ~29.9M : (For
100M ~9.99G : (5%+5) 100M ~9.99G : (5%+5) 100M ~9.99G : (5%+5) reference only)
30.0M ~99.9M : (3%+5)
10.0G ~20.0G : (10%+5) 10.0G ~40.0G : (10%+5) 10.0G ~100G : (10%+5)
100M ~9.99G : (5%+5)
10.0G ~99.9G : (10%+5)
Above 100G : [ (20%+5)
Humidity:Below 50%]
Short Circuit Less than 2.0mA

Operating Caution

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Model UT513: OPERATING MANUAL Model UT513: OPERATING MANUAL
At any output voltage, when the tested resistance is les than 10M , the testing time cannot exceed 10
seconds continuously.
*END*

This operating manual is subject to change without notice.

Copyright 2007 Uni-Trend Group Limited. All
rights reserved.

Manufacturer:
Uni-Trend Technology (Dongguan) Limited
Dong Fang Da Dao
Bei Shan Dong Fang Industrial Development District
Hu Men Town, Dongguan City
Guang Dong Province
China Postal Code: 523
925

Headquarters:
Uni-Trend Group Limited
Rm901, 9/F, Nanyang Plaza
57 Hung To Road
Kwun Tong
Kowloon, Hong Kong
Tel: (852) 2950 9168

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Fax: (852) 2950 9303 Email:
info@uni-trend.com
http://www.uni-trend.com