ATO UT513 Portable Digital Insulation Tester 500V User Manual

ATO UT513 Portable Digital Insulation Tester 500V

Introduction

Uni-Trend Model UT513 insulation resistance tester (hereafter, “the Meter”) is a handheld instrument designed primarily to make resistance/ insulation resistance measurements.

Unpacking the Meter

The Meter includes the following items:

clip (Black colour)

| 1 piece
3| One plug test lead to one alligator

clip (Green colour)

| 1 piece
4| Two plugs test lead to one

alligator clip (Red colour)

| 1 piece
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 230V, 50/60Hz, 75mA, output DC13.5V, 1100mA)(optionally,

available at extra cost)

| 1 piece

In the event you find any missing or damage, please contact your dealer immediately.

Safety Information

This Meter complies with EN 61010-1:2010 safety measurement requirements: Pollution Degree 2, measurement category CAT III 600V and Double Insulation.

• CAT II (measurement category): Test and measure circuits connected directly to utilization points (socket outlets and similar points) of the low-voltage MAINS installation.
• CAT III (measurement category): Test and measure circuits connected to the distribution part of the building’s low-voltage MAINS installation.

Use the Meter only as specified in this operating manual, otherwise, the protection provided by the Meter may be impaired.

• Danger identifies conditions and actions that pose a hazard(s) to the user.
• Warning identifies avoiding electric shock.
• Caution identifies conditions and actions that may damage the Meter and carries out accurate measurements.

Operating Caution identifies conditions that user needs to take extra care of while operating the Meter International electrical symbols used on the Meter and in this Operating Manual are explained

Danger

Use of an instrument in a manual not specified by the manufacturer 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, vapour 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.
• When carrying out insulation measurements, do not contact the circuit under test.

Warning

• Do not use the Meter if it is damaged or metal part is exposed. Look for cracks or missing plastic.
• Be careful when working above 33V rms, 46.7V ac rms or 70V DC. Such voltages pose a shock hazard.
• Discharge all loading of circuit under test after measuring high voltage.
• Do not change battery when the Meter is in wet environment.
• Place test leads in proper input terminals. Make sure all the test leads are firmly connected to the Meter’s input terminals.
• Make sure the Meter is turned off when opening the battery compartment.

Caution

• When performing resistance tests, remove all power from the circuit to be measured and discharge all the power.
• When servicing the Meter, use only the same model number or identical electrical specifications of test leads and power adaptor.
• Do not use the Meter if the battery indicator ( ) shows a battery empty condition. Take the battery out from the Meter if it is not used for a long time.
• Do not use or store the Meter in an environment of high temperature, humidity, explosive, inflammable and strong magnetic field. The performance of the Meter may deteriorate after being dampened.
• Soft cloth and mild detergent should be used to clean the surface of the Meter when servicing. No abrasive and solvent should be used to prevent the surface of the Meter from corrosion, damage and accident.
• Dry the Meter before storing it if it is wet.

International Electrical Symbols

International symbols on the Meter and in this manual are explained in Table 2.

Battery Saver (Sleep Mode)

The Meter enters the Sleep Mode and blanks the display if there is no button press for 15 minutes. This is done to conserve battery power. The Meter comes out of Sleep Mode when ON/OFF button is pressed and held for 1 second.

Battery Indication

There is a battery indicator shown on the display upper left-hand corner. Below Table 3 is the explanation:

The Meter Structure

Figure 1 and Table 4 shows the Meter front  structure and description

Meter Front Description

(two plugs red test lead to one alligator clip)

19| High voltage line shielding input terminal

(two plugs red test lead to one alligator clip)

20| GUARD: Grounding protection input terminal

(one plug black test lead to one alligator clip)

21| EARTH: High resistance measurement input terminal (one plug green test lead to one

alligator clip)

22| Testing leads:

Two plugs red test lead to one alligator clip. One plug black test leads to one alligator clip. One plug green test leads to one alligator clip.

Figure 2 and Table 5 show the Meter side structure and description

Display

Table 6 and Figure 3 describe the display.

Display Description

Key Functions

ON/OFF| Turn on or off the Meter. Press and hold the button for 1 second to turn the Meter on. Press again to turn off the Meter.

The Meter default range is 500V insulation resistance continuous

measurement when turning on.

---|---
E-STOP| Emergency stop button. Press this

button when the Meter is hang and cannot turn off the power.

CLEAR /| Press to turn on or off the display backlight

Press and hold to clear the stored data

SAVE| Press to store the current measurement value. The maximum number of stored reading is 18. When the stored readings memory is full, the Meter shows FULL and stop storing. Press and hold CLEAR /      to clear the stored value in order to store the next measurement
| value.
---|---
LOAD| Press once to recall the first stored value.

Press again to exit the Load feature. Load feature can only be used when

there is no high-voltage output.

| When the insulation resistance

measurement has no testing voltage output, press to select one voltage range up.

Under load mode: press to recall the

previous stored value.

| When the insulation resistance measurement has no testing voltage output, press to select one voltage range down.

Under load mode: press to recall the next stored value.

| When set the timer duration for the measurement of insulation resistance or polarization index, press to decrement the time. The maximum length of time is 15 minutes and 30 seconds, the Meter will automatically carry out measurement.

When comparing feature measuring insulation resistance, press to decrement a resistance comparing value.

After polarization index measurement, press to display polarization index, TIME 2 insulation resistance value and TIME 1 insulation resistance value in

sequence.

---|---
| When set the timer duration for the measurement of insulation resistance or polarization index, press to
| increment the time. The maximum length of time is 30 minutes and 30 seconds, the Meter will automatically carry out measurement.

When use the compare feature measuring insulation resistance, press to increment a resistance comparing value.

After polarization index measurement, press to display polarization index, TIME 2 insulation resistance value and TIME 1 insulation resistance value in

sequence.

---|---
USB| Press once to start the data

transferring to the computer via USB, USB symbol shows on the display. Press again to stop the data transferring to the computer via USB, USB symbol disappears.

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

measurement

ACV| Pres to initiate AC voltage

measurement

Measurement Operation

The 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.

Operating Caution

• To avoid harm to you or damage 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 the 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, “-“ 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.

• 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 the TEST button to put high voltage.
• Do not short-circuit the testing leads during high voltage output or test insulation resistance after high voltage output. This kind of incorrect operation may cause sparking and fire, which damages the  Meter and harms to you.
• Do not measure over 10 seconds when: 500V measures resistance lower than 2M 1000V measure resistance lower than 5M 2500V measure resistance lower than 10M 5000V measure resistance lower than 20M

To measure insulation resistance, set up the Meter as Figure 5 and do the following:

1. Press the IR button to select insulation resistance measurement.
2. When there is no testing voltage output, press and button to select voltages of 500V, 1000V, 2500V or 5000V.
3. When performing insulation resistance tests, remove all power from the circuit to be measured and discharge all the power.
4. Insert the red test lead into the LINE input terminal and the black test lead into the GUARD input terminal.
5. Connect the red and black alligator clip to the circuit to measure, negative voltage output from the LINE terminal.
6. Choose below insulation resistance measurement mode below.

a) Continuous Measurement

• Press the TIME button to select continuous measurement mode, there is no timer icon on the LCD.
• Press and hold the TEST button for 1 second to carry out continuous measurement. Output insulation resistance testing voltage, TEST button lights up , blinks on every 0.5 seconds.
• Press the TEST button to close the insulation resistance measurement voltage when the measurement is completed. The TEST button lights off and disappears. The LCD shows the current insulation resistance measurement value.

b) Timed Measurement

• Press TIME button to select timed measurement mode, the LCD displays TIME 1 and symbols.
• Press and buttons to set the time (00:10~15:00). Within 1 minute, the time increments or decreases by every 10 seconds. Afterward, the time increment or decrement by every 30 seconds.
• Then press and hold TEST button 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

c) Polarization Index (PI) Measurement

• Press TIME button to select timed measurement mode, the LCD displays TIME 1 and © symbols.
• Press « and » buttons to set the time (00:10~15:00). Within 1 minute, the time increment or decrement by every 5 seconds. Afterward, the time increment or decrement by every 30 seconds.
• Press TIME button again. TIME 2, PI and & symbols appear on the LCD.
• Press 4 and » buttons to set the time (00:15~15:30). Within 1 minute, the time increment or decrement by every 10 seconds. Afterward, the time increment or decrement by every 30 seconds.
• Then press and hold TEST button for 2 seconds to carry out timed measurement.
• TIME 1 and A are displayed and blinked on the LCD on every 0.5 seconds before TIME 1 set time is reached.
• TIME 2 and A are displayed and blinked on the LCD on every 0.5 seconds before TIME 2 set time is reached.
• When the two set time are reached, the insulation resistance measurement voltage will be closed and the measurement will be automatically stopped. The LCD displays the polarization index reading.
• Press 4, to set through the polarization index, TIME 2 insulation resistance reading and TIME 2 insulation resistance reading.

d) Compare Function

• Press COMP button to select compare feature. COMP symbol displays on the LCD..
• Press < and » buttons to set the compare value
• Below is the list in sequence of the compare value:
• Press and hold TEST button for 2 seconds to carry out the measurement.
• The NG symbol will display if the insulation resistance value is smaller than resistance value. Otherwise GOOD symbol will be displayed.

The Use of Power Adaptor

The use of power adaptor, see figure 6

1. Open the side safey shutter, then you will see there is a power adaptor input terminal.
2. Make sure the Meter is power off and insert the UT513 power adaptor to the input terminal.
3. It is highly recommeded to take out all the batteries when you are using the power adaptor.
4. Make sure the Meter is power off when you disconnect the UT513 power adaptor from the Meter.
5. It is highly recommeded to use Uni-Trend supplied UT513 power adaptor to avoid dangerous.

USB Interface

Connecting the USB interface, see figure 7

1. Install the included software, the installation guide can be seen from the CD.
2. Open the side safety shutter, then you will see there is a USB port.
3. Insert the included USB cable to the Meter’s USB port and the other end to the computer.

Maintenance

This section provides basic maintenance information including battery replacement instruction.

Warning

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.

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.

B. Replacing the Battery

Warning

To avoid electric shock, remove all the test leads from the Meter when replacing the batteries.

Operating Caution

• Don’t 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.
• Rejoin the case bottom and battery compartment, and reinstall the screw.

Specifications

Safety and Compliances

Physical Specifications

90% @ -20°C~ 60°C:

Battery Type| 8pcs of 1.5V (LR14) batteries or power adaptor (input voltage 230V, 50/60Hz,

75 mA, 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

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

• Operating temperature: 18 – 2umber of least significant digits), guarantee for 1 year.
• Relative humidity: 45~75%RH

Voltage Measurement

B. Insulation Resistance Measurement

Operating Caution

At any output voltage, when the tested resistance is les than 10M seconds continuously , the testing time cannot exceed 10

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