Hioki 3159 User manual

INSULATION/

Measurement Guide

3159

August 2014 Revised edition 1 3159A985-01 14-08H

HiTESTER

WITHSTANDING

99 Washington Street

Melrose, MA 02176

Phone 781-665-1400

Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

The Model 3159 Insulation/Withstanding HiTester is a hazardous instrument that generates high voltage.

For safe use, please read the “Introduction,” “Inspection,” “Safety Notes,” and “Notes on Use” in the 3159

Instruction Manual.

This document provides, as an example, a simple method for testing withstanding voltage of electrical

appliances by using the Model 3159 Insulation/Withstanding HiTester. For details on how to use the 3159,

refer to the 3159 Instruction Manual. (Insulation resistance tests can also be performed with the 3159.)

Symbols and Notations Used in this Manual

···· Indicates that incorrect operation presents an extreme hazard that could result in serious

injury or death of the user.

···· Indicates that incorrect operation presents a possibility of injury to the user or damage to the

instrument.

The Model 3159 Insulation/Withstanding HiTester is a hazardous instrument that

generates high voltage. Please use due caution when handing the 3159. To prevent

electric shock, wear high-voltage rubber gloves and electric-proof rubber boots, and

put an electric-proof rubber sheet on the work surface.

Please read this manual thoroughly to ensure safe testing.

Measurement procedure with the 3159 (This flowchart shows the procedure for using the 3159.)

If you accidentally set the wrong settings while checking the operations, turn on the main power switch

while holding down the SHIFT key to reset the system (return to initial state).

3. Preparation

Before the Test

5. Finish the Test

4. Start the Test

Prepare for withstanding voltage test.

(Connect the electrical appliance and set the

test conditions)

Start the test, taking measures to prevent

electric shock.

Set the test voltage.

Check and record the test results.

Clean up after turning off the power.

2. Simple Startup

Inspection

(From connection

to check)

Perform a simple startup inspection for safe

testing.

1. Preparation Check that you have the necessary tools for

the test.

(1) Before starting a test using the 3159,

check the following information regarding

the electrical appliance to be tested.

1. Test voltage

2. Reference leakage current value

(upper limit for the test)

3. Test time

4. Test points

Points to connect with test leads

(red, black) of the 3159

* This measurement guide explains the procedure based on an example using the following settings.

(Sample settings: Parameters and Values)

Parameter Test voltage Reference leakage current value Test time

Value 1000 V 10 mA 60 seconds

(2) Things to prepare:

1. Model 3159 Insulation/Withstanding HiTester

2. Electrical appliance to be tested

3. Rubber gloves for protection from high voltages (for safe testing)

4. Forms or a computer to record test results

5. Conductive wire (tinned wire or other non-insulated wire)

 This wire is used to short-circuit the plug pins.

See figure below for details.

Short-circuit the plug pins with the conductive wire by following these steps.

1. Prepare a conductive wire.

2. Wind the wire tightly around the plug pins as shown

in the figure. Wind the wire around the pins 5 or 6 times.

Wind the wire tightly to ensure short-circuiting.

Wind the wire being careful not to bend the part of

the plug indicated by (A).

3. Check:

Conduct a final check to make sure that the wire is wound

tightly around the plug pins.

* Alternatively, use a receptacle, which is custom-made for the test, with the two leads short-circuited as

shown in the “Example test setup” above.

Electric appliance

Short-circuited receptacle

High-voltage rubber gloves

Do not perform tests in

locations that are:

• exposed to direct sunlight

• poorly ventilated

• subject to frequent mechanical vibrations

• near flammable objects

Electric-proof rubber sheet

Model 3159 Insulation/Withstanding HiTester

1. Preparation

(Example test setup)

(Short-circuited plug)

During startup inspection, the operator intentionally applies electric current to check

whether the 3159 and the test leads are functioning properly.

(1)

(2)

(3)

(4)

Connect the power cord (supplied with the

3159) to the inlet of the main unit and a

grounded outlet.

Always properly ground the 3159 in order

to prevent electric shocks.

Short-circuit the high-voltage test lead

(red) and low-voltage test lead (black) as

shown in the picture.

Wear high-voltage rubber gloves when connecting the lead wires.

Connect the test leads securely so that they do not disconnect during the test,

Do not place the test leads directly on the ground or floor during the test. Do not

bring them into contact with any metal products in the vicinity.

Place the connected test leads on a board

made of refractory insulated material, such as

an electric-proof rubber sheet.

Check that the power switch of the 3159 is

turned off and the output voltage knob is in the

zero position.

Tightly attach the supplied low-voltage test

lead (black) to the LOW terminal (black).

Insert the supplied high-voltage test lead (red)

to the HIGH terminal (red) all the way so that it

is firmly seated.

2. Simple Startup Inspection (Connection)

(1)

(2)

(3) Check that

is displayed on the screen.

Take due care when the 3159 enters the READY state in which testing can start.

(4) Set the parameters as follows:

Parameter Comparative-voltage Upper limit for test Lower limit for test Test time Range

Value OFF 10 mA

OFF 70.0 seconds 2.5 kV

(5)

Check that the analog voltmeter indicates 0 kV and

that the lamp does not light

up.

Use the and keys to select range.

The selected item blinks, which indicates that it can

be edited.

Use the and keys to edit each

(6) Press the STOP (EXIT) key to confirm the test

conditions. The 3159 enters the READY state.

(The figure on the left shows the 3159 when the test

conditions have been confirmed.)

Set the test voltage using the output voltage knob after starting the test.

Check that no one is near the testing area,

and turn on the main power switch of the 3159.

Press the key and check that the lamp

lights up.

(Only the test upper limit and the test time are set here. Leave

the comparative-voltage and lower limit set to OFF.)

3. Simple Startup Inspection (Settings)

Test upper limit Test time

Test time

Before setting

Test upper limit

Comparative-voltage

Range

fter setting

(1)

(2)

(3) Inspection Result

The 3159 will beep and will be displayed on the screen.

Abnormal: will be displayed on the screen. (Perform steps (4) and (5), then follow the instruction

below.)

(4)

(5)

(6)

Wear high-voltage rubber gloves when connecting the lead wires.

Turn the output voltage knob clockwise during

the (70 second) test.

During the inspection, you do not need to adjust

the voltage accurately. As a general guide, turn

the knob about a quarter turn.

Disconnect the test leads (short-circuited part).

The startup inspection is now complete.

When a test is started, high voltage is generated by

the 3159 when it enters the state.

Do not touch the output voltage HIGH terminal (red)

or the test lead while the lamp is

illuminated.

Press the START key to start the test.

Press the STOP (EXIT) key to cancel the hold state.

*Check the test lead connections (insertion/tightening) and test again. If the result is still “PASS,” a test lead may be

damaged or the 3159 may be malfunctioning. Please contact your authorized Hioki distributor or reseller.

Turn the output voltage knob all the way

counter-clockwise, returning it to zero. Turn the

main power switch of the 3159 off.

Normal:

4. Simple Startup Inspection (Check)

(1)

(2)

(3)

(4)

(5)

(6)

Wear high-voltage rubber gloves when connecting the lead wires.

Connect the test leads securely so that they do not disconnect

during the test.

Connect the low-voltage test lead (black) to the

test point on the electrical appliance (surface of

the body of the appliance, ground terminal, or

other test point).

Set the three parameters mentioned in “1. Preparation”: Test voltage, Reference leakage current

value (upper limit for the test), and Test time. Refer to “3. Simple Startup Inspection (Settings).”

Set the test voltage after starting the test (while checking the measured voltage value).

Turn on the power switch of the electrical

appliance while power is not supplied to

the electrical appliance.

You cannot take accurate measurements if the

power switch of the electrical appliance is turned off.

Connect the high-voltage test lead (red) to the test

point on the electrical appliance (the short-circuited

part of the plug or the short-circuited leads of the

receptacle that is connected to the plug).

Check that no one is near the testing area and turn on the main power to the 3159.

Check that the analog voltmeter is indicating 0 kV

and that the

lamp is not

illuminated.

Measured voltage value Test timeLeakage current value

5. Pre

aration Before the Test

Enlarged

Switch ON

(1)

(2)

Set the test voltage after pressing the START key to start the test.

Check the values to be used before

ressin

the START ke

When a test is started, high voltage is generated by the 3159 when it enters the state.

Do not touch the output voltage HIGH terminal (red), test leads, electrical appliance (device to

be tested), or short-circuited receptacle while the lamp is illuminated.

The test requires the voltage to be applied for 60 seconds.

After pressing the START key, turn the output voltage knob to set the voltage

to the test voltage before the remaining time reaches 60 seconds.

To Set the Test Voltage

To set the test voltage, turn the output voltage knob while checking the

measured voltage value.

It may take time to get used to setting the test voltage.

Turning the output voltage knob excessively can raise the

voltage over the test voltage, resulting in damage to the

electrical appliance.

Press the START key to start the test.

To forcibly terminate the test process,

press the STOP (EXIT) key.

6. Start the Test

Measured voltage value Leakage current value Remaining time

(1) When the result is “PASS”

(2) When the result is “FAIL”

(3) If the FAIL Hold function is enabled, press the STOP (EXIT) key to cancel the hold state.

(1)

(2)

(3) Turn the main power switch of the 3159 off.

(4) Disconnect the electrical appliance, test leads, and power cord in the reverse order of

connection.

An "UPPER FAIL" judgment will be given and the 3159 will beep if the electric

liance fails to withstand the test volta

e for the set test time.

Record the result as FAIL in the record form or other documents.

(If the measured voltage value, leakage current value, and remaining time are also

necessar

record them as well.

)

Return the output voltage knob to zero. (Turn the knob

all the wa

counte

-clockwise

)

Check that the analog voltmeter indicates 0 kV and that

the

lamp is not illuminated.

To conduct further tests, start from “5. Preparation Before the Test” of this measurement guide.

A "PASS" judgment will be given if the electric appliance withstands the test voltage for the set

test time. (“PASS” will be displayed for approximately 0.5 seconds by default; however the

“PASS” indication can be retained. See “4.1 PASS Hold Function” in the 3159 instruction

manual.) Record the result as PASS in the record form or other documents.

7. Finish the Test

Measured voltage value Remaining time

Leakage current value

Measured voltage value Remaining timeLeakage current value

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

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