Chroma 19071, 19073, 19072 Quick Start Manual

HIPOT Tester

19071/19072/19073

Quick Start Guide

i

HIPOT Tester

19071/19072/19073

Quick Start Guide

Version 1.2

December 2010

P/N A11 001298

i

Legal Notices

The information in this document is subject to change without notice.

Chroma ATE INC. makes no warranty of any kind with regard to this
manual, including, but not limited to, the implied warranties of
merchantability and fitness for a particular purpose. Chroma ATE INC. shall
not be held liable for errors contained herein or direct, indirect, special,
incidental or consequential damages in connection with the furnishing,
performance, or use of this material.

CHROMA ATE INC.

No. 66 Hwa-Ya 1st Rd., Hwa-Ya Technical Park, Kuei-Shan 33383,
Taoyuan County, Taiwan

Copyright Notices. Copyright 2009 - 2010 Chroma ATE INC., all rights
reserved. Reproduction, adaptation, or translation of this document without
prior written permission is prohibited, except as allowed under the copyright
laws.

ii

Warranty

All Chroma instruments are warranted against defects in material and
workmanship for a period of one year after date of shipment. Chroma
agrees to repair or replace any assembly or component found to be
defective, under normal use during this period. Chroma's obligation under
this warranty is limited solely to repairing any such instrument, which in
Chroma's sole opinion proves to be defective within the scope of the
warranty when returned to the factory or to an authorized service center.
Transportation to the factory or service center is to be prepaid by purchaser.
Shipment should not be made without prior authorization by Chroma.

This warranty does not apply to any products repaired or altered by
persons not authorized by Chroma, or not in accordance with instructions
furnished by Chroma. If the instrument is defective as a result of misuse,
improper repair, or abnormal conditions or operations, repairs will be billed
at cost.

Chroma assumes no responsibility for its product being used in a
hazardous or dangerous manner either alone or in conjunction with other
equipment. High voltage used in some instruments may be dangerous if
misused. Special disclaimers apply to these instruments. Chroma
assumes no liability for secondary charges or consequential damages and
in any event, Chroma's liability for breach of warranty under any contract or
otherwise, shall not exceed the purchase price of the specific instrument
shipped and against which a claim is made.

Any recommendations made by Chroma for use of its products are based
upon tests believed to be reliable, but Chroma makes no warranty of the
results to be obtained. This warranty is in lieu of all other warranties,
expressed or implied, and no representative or person is authorized to
represent or assume for Chroma any liability in connection with the sale of
our products other than set forth herein.

CHROMA ATE INC.

No. 66 Hwa-Ya 1st Rd, Hwa-Ya Technical Park,
Kuei-Shan 33383, Taoyuan County, Taiwan
Tel: [phone]
Fax: [phone]
http://www.chromaate.com

iii

Material Contents Declaration

The recycling label shown on the product indicates the Hazardous
Substances contained in the product as the table listed below.

: See <Table 1>.

: See <T able 2>.

<Table 1>

Hazardous Substances

Part Name

PCBA O O O O O O

CHASSIS O O O O O O

ACCESSORY O O O O O O

PACKAGE O O O O O O

“O” indicates that the level of the specified chemical substance is less than the
threshold level specified in the standards of SJ/T-11363-2006 and EU 2005/618/EC.

“°” indicates that the level of the specified chemical substance exceeds the
threshold level specified in the standards of SJ/T-11363-2006 and EU 2005/618/EC.

Lead Mercury Cadmium Hexavalent

Chromium

Pb Hg Cd Cr

Polybrominated

6+

Biphenyls

PBB PBDE

Polybromodiphenyl

Ethers

Disposal

Do not dispose of electrical appliances as unsorted municipal waste, use separate
collection facilities. Contact your local government for information regarding the
collection systems available. If electrical appliances are disposed of in landfills or
dumps, hazardous substances can leak into the groundwater and get into the food
chain, damaging your health and well-being. When replacing old appliances with
new one, the retailer is legally obligated to take back your old appliances for
disposal at least for free of charge.

iv

<Table 2>

Hazardous Substances

Part Name

PCBA

CHASSIS

ACCESSORY

PACKAGE O O O O O O

Lead Mercury Cadmium Hexavalent

Pb Hg Cd Cr

°

O O O O O

°

O O O O O

°

O O O O O

Chromium

Polybrominated

6+

Biphenyls

PBB PBDE

Polybromodiphenyl

Ethers

“O” indicates that the level of the specified chemical substance is less than the
threshold level specified in the standards of SJ/T-11363-2006 and EU 2005/618/EC.

“°” indicates that the level of the specified chemical substance exceeds the
threshold level specified in the standards of SJ/T-11363-2006 and EU 2005/618/EC.

1. Chroma is not fully transitioned to lead-free solder assembly at this moment;
however, most of the components used are RoHS compliant.

2. The environment-friendly usage period of the product is assumed under the
operating environment specified in each product’s specification.

Disposal

Do not dispose of electrical appliances as unsorted municipal waste, use
separate collection facilities. Contact your local government for information
regarding the collection systems available. If electrical appliances are
disposed of in landfills or dumps, hazardous substances can leak into the
groundwater and get into the food chain, damaging your health and well­being. When replacing old appliances with new one, the retailer is legally
obligated to take back your old appliances for disposal at least for free of
charge.

v

Safety Summary

The following general safety precautions must be observed during all
phases of operation, service, and repair of this instrument. Failure to
comply with these precautions or specific WARNINGS given elsewhere in
this manual will violate safety standards of design, manufacture, and

intended use of the instrument. Chroma assumes no liability for the

customer’s failure to comply with these requirements.

BEFORE APPL YING POWER

Verify that the power is set to match the rated input of
this power supply.

PROTECTIVE GROUNDING

Make sure to connect the protective grounding to
prevent an electric shock before turning on the

power.

NECESSITY OF PROTECTIVE GROUNDING

Never cut off the internal or external protective
grounding wire, or disconnect the wiring of protective
grounding terminal. Doing so will cause a potential
shock hazard that may bring injury to a person.

vi

FUSES

Only fuses with the required rated current, voltage,
and specified type (normal blow, time delay, etc.)
should be used. Do not use repaired fuses or short­circuited fuse holders. To do so could cause a
shock or fire hazard.

DO NOT OPERATE IN AN EXPLOSIVE A TMOSPHERE

Do not operate the instrument in the presence of
flammable gases or fumes. The instrument should
be used in an environment of good ventilation.

DO NOT REMOVE THE COVER OF THE INSTRUMENT

Operating personnel must not remove the cover of
the instrument. Component replacement and
internal adjustment can be done only by qualified
service personnel.

Safety Symbols

DANGER – High voltage.

Explanation: To avoid injury, death of personnel, or

damage to the instrument, the operator must refer to

an explanation in the instruction manual.

Protective grounding terminal: To protect against

electrical shock in case of a fault. This symbol
indicates that the terminal must be connected to

WARNING

ground before operation of equipment.

The WARNING sign denotes a hazard. It calls

attention to a procedure, practice, or the like, which,
if not correctly performed or adhered to, could result
in personal injury. Do not proceed beyond a

WARNING sign until the indicated conditions are
fully understood and met.

CAUTION

The CAUTION sign denotes a hazard. It may

result in personal injury or death if not noticed
timely. It calls attention to procedures, practices

and conditions.

This indicates important information or tips for the
procedures and applications, etc. The contents
should be read carefully.

vii

The Danger of Operating

1. When the instrument is under output voltage, please don’t touch test
area or you may shock hazard and result in death.

Please obey the following items.

• Make sure the grounding cable is connected correctly and using the

standard power cord.

• Don’t touch the output terminal.

• Don’t touch test cable of connecting test termination.

• Don’t touch test termination object.

• Don’t touch any charge component of connecting output terminal.

• As the instrument end the test or turn off output, please don’t touch

test unit immediately.

2. The shock accidents are usually occurred on the following conditions.

• The grounding terminal of the instrument doesn’t connect correctly.

• No use insulation glove for testing.

• After test is completed to touch test unit immediately.

3. Remote control for the instrument: This instrument provided with
remote control, normally using the external signal to control high
voltage output. For safety reasons and prevent from hazards, please
exactly follow instructions below while using remote control.

• Unexpected high voltage output may exist. Make sure if this

instrument is under testing/remote controlling before access to the
probes.

• When the instrument is under testing/operating, any access to DUT,

test cable and probe output terminal are prohibited, both for the
operator/service personnel.

• Normally remote control of this instrument is controlled by the high

voltage test bar. However, using of other control circuit is also
possible. For safety reasons and prevent from hazards, please
notice that unintentional access to the control test bar or bridging the
control circuit to high voltage terminal and test cables may cause
hazards. Please keep this terminal/control from unintentional
bridging/access to avoid danger.

viii

WARNING

Don't tie HV cable, RS232, Handler, GPIB control
cable and other low voltage cable together. Or it
may cause product damaged or PC crashed.

ix

Storage, Freight, Maintenance & Cleaning

Storage

When don’t use the device, please pack it properly and store under a good
environment.
(The packing is no needed when the device under appropriate
environment.)

Freight

Please use the original packing material when move the device. If the
packing material is missing, please use the equivalent buffer material to
pack and mark it fragile and waterproof etc to avoid the device damage
during movement. The device belongs to precise equipment, please uses
qualified transportation as possible. And avoid heavy hitting etc to
damage the device.

Maintenance

There is no maintenance operation for the general user. (Except for the
note in the manual.) Please contact our company or agent when the device
occurred the user judgment abnormal. Don’t maintain by yourself to avoid
occurred unnecessary danger and serious damage to the device.

Cleaning

Remove all connected wires and cables on the instrument before cleaning.
Use a brush gently to clean the dust on it. For internal cleaning, use a
low-pressure air gun to vacuum the dust inside or send it back to the
distributors or agents of Chroma for cleaning.

x

Table of Contents

1. Introduction................................................................................1

1.1 An Overview of Function ..........................................................1

1.2 Specification (18ºC ∼ 28ºC RH ≤ 70%)..................................... 2

1.3 Standard Accessory..................................................................4

1.4 Optional Accessory...................................................................5

1.5 Initial Inspection........................................................................5

2. Operation and Setting...............................................................6

2.1 Front Panel ...............................................................................6

2.1.1 Display Area ..........................................................................6

2.1.2 Button Area............................................................................ 7

2.1.3 Terminal Area ........................................................................ 8

2.2 Rear Panel................................................................................ 8

2.3 How to Perform Tests .............................................................12

3. Installation and Maintenance .................................................18

3.1 Notices for Installation ............................................................18

3.1.1 Charging During DC HiPot/Insulation Resistance Test .......20

3.1.2 Emergency Events ..............................................................21

3.1.3 Solving Problems ................................................................21

3.2 Notices for Maintenance.........................................................24

3.3 Troubleshooting......................................................................24

xi

HIPOT Tester 19071/19072/19073 Quick Start Guide

1. Introduction

1.1 An Overview of Function

■ This high quality automatic HiPot test instrument is designed to test the

withstanding leakage current and insulation resistance for electric
machinery and electronic devices.

■ For withstanding test, its output power is AC: 100VA (5kV, 20mA), DC:

30VA (6KV, 5mA), which is applicable to electronic, electric machinery
and components for withstanding and insulation tests.

■ For insulation resistance, its test range is from 0.1MΩ~50GΩ, and test

voltage is 0.050kV ~1kV definable.

■ For ground continue, its test range is from 0Ω∼5Ω.

■ For short/open detection, before testing high voltage test if the

capacitance is short or open circuit in advance. For ensure the DUT is
good contact then to perform high voltage test.

■ All settings for state, time, current, voltage and resistance can be seen

clearly on the display. There is no need to memorize the parameter
state of any items.

■ It is equipped with devices for Pass/Fail judgment, test results and

remote control.

■ It can perform high efficiency and accurate tests for electric machinery,

electronic devices and components.

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HIPOT Tester 19071/19072/19073 Quick Start Guide

1.2 Specification (18ºC ∼ 28ºC RH ≤ 70%)

 Withstanding Voltage Test

 Test Voltage

 Voltage Regulation
 V-display Accuracy ± (1% of reading + 5 counts), 2V resolution
 Cutoff Current

(Note1)

 I-display Accuracy

0.1uA-299.9uA

0.3mA-2.999mA
3mA-20mA(5mAdc)

 Output Frequency 50Hz, 60Hz
 Test Time 0.1 ~ 999 Sec, continue (Note3)
 Dwell Time 0.1 ~ 999 Sec, off
 Ramp Time 0.1 ~ 999 Sec, off (0.1sec approx.)
 Fall Time 0.1 ~ 999 Sec, off

 Arc Detection

 Setting Mode Programmable Setting
 Detection Current AC: 1mA ~ 20mA, DC:1mA ~ 5mA
 Min. pulse width 10us approx.

 GOOD/NO-GO Judgment Function

 Judgment System

 Insulation Resist ance Test (19073 only)

 Test Voltage DC: 0.05kV ~ 1kV, Constant Voltage

AC: 0.05∼5kV / DC: 0.05~6kV Constant
Voltage (19072, 19073 only)

≤ 1%+5V, Rated Load

AC: 0.1mA ~ 20mA, DC: 0.01mA ~ 5mA
(Note1), 0.1uAdc resolution

± (1.5% of reading + 5 counts) (Note2)
WDC only

± (1.5% of reading + 5 counts) (Note2)

• Window comparator

• A NO-GO judgment is made when a

current greater than the high limit value
or smaller than the low limit value is
detected.

• When a NO-GO judgment is made, the
output voltage is cut out and a NO-GO
alarm signal is delivered.

• If no abnormal state is detected during
the test time a GOOD.
Judgment is made and a GOOD signal
is delivered.

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HIPOT Tester 19071/19072/19073 Quick Start Guide

 V-display Accuracy ± (5% of reading + 5 counts) (open voltage),

2V resolution

 Resistance Range

 Measuring Accuracy

0.1 MΩ ∼ 50 GΩ (Note 4)

≥ 500V: 1MΩ ∼ 1000MΩ: ± 4% + 5 counts

1GΩ ∼ 10GΩ: ± 7% + 5 counts

10GΩ ∼50GΩ: ± 12% + 5 counts
< 500V: 0.1 MΩ ∼ 1000MΩ: ± 7% + 5 counts
< 100V: 0.1 MΩ ∼ 1000MΩ: ± 10% + 5
counts

 Secure Protection Function

 Fast Output Cut-off Approx. 0.4mS, after NG happen
 Fast Discharge Approx. 0.2S, Typical
 Ground Fault Interrupt 0.5mA±0.25mAac(ON), OFF
 Continuity Check
 Panel Operation Lock YES

 Memory Storage

 Memories, Steps 10 steps or 60 groups for total 60 memory

0.1Ω~5.0Ω± 0.2Ω, GC MODE

location

 GO/NG Judgment Window
 Indication, Alarm GO: (Short Sound)

NG: W-Arc, W-Hi, W-Lo, IR-Lo, IR-Hi, GFI
(Long Sound)

 Remote Connector

 Rear Panel 9 Pin

D-type Connector

 TEST/RESET Control Low – active control, (24V open voltage

Input: Start, Stop, Interrupt
Output: Under test, Pass, Fail

typical).
Input requirements

• Input time duration: 20msec. Approx.

The above input circuits are not
isolated from other internal circuits.

 Options
 RS-232 Interface Baud rate: 4800 ~ 19200, data bits: 8, stop

bit: 1

 RS-485 Interface A maximum of 32 devices connected to

each bus.

 Ambient Temperature and Relative Humidity

 Specifications range

18 to 28°C (64 to 82°F), ≤ 70% RH.

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HIPOT Tester 19071/19072/19073 Quick Start Guide

 Operable range Maximum relative humidity 80% for

temperature up to 31°C (88°F).
Decreasing linearly to 50% relative
humidity at 40°C (104°F)
Altitude up to 2000m
Indoor use only.
Pollution degree 2

 Storage range

 Installation Category CAT II

 Power Requirement

 Line Voltage AC 100V, 120V, 220V ± 10%, 240V +5 -

-10 to 60°C (-14 to 140°F), ≤ 80% RH.

10%

 Frequency 50 or 60 Hz
 Power No load: < 60W
 Consumption With rated load: 300W max.

 General

 Dimension 270(W) x 105(H) x 350(D) mm
 Weight Approx 12kg

 Safety

 Ground Bond
 Hipot Less than 10mA at 1.5kVac, 3sec
 Insulation Resistance
 Line leakage current Less than 3.5mA at 127V, 3sec, normal,

Less than 100mΩ at 25Amp, 3sec

Over 100MΩ at 500V 3sec

reverse

Note 1: AC set over 75VA, DC set over 22.5VA the maximum operating time

is 60 seconds, and the same as rest time.
The period of rest time is 1/2 duty of operating time. For full rating
output, the line input range is +10% ∼ -0%.

Note 2: Only refer to 1.2kV resistance load.
Note 3: IR test time is 0.3 sec ~ 999 sec.
Note 4: Display resistance range is up to 60GΩ.

1.3 Standard Accessory

Item Q’ty Description

USA-type power
cord

4

1

90° elbow USA-type power cord, length 1.8m

HIPOT Tester 19071/19072/19073 Quick Start Guide

Power adapter 1 USA-type power cord 3P – 2P adapter
HV terminal used
test cable
LOW terminal used
test cable
Test cable of
grounding continue

3.15A fuse 2 For 3.15A SLOW 110VAC used

1.6A fuse 2 For 1.6A SLOW 240VAC used

Quick Start Guide 2

User’s manual CD 1

Alligator clip – cross HV head, red HV test

1

cable, wire length 1m
Alligator clip – banana plug, black HV test

1

cable, wire length 1.2m

1 Wire used in GC test, length 1.2m

One English version and one Traditional
Chinese version.
CD for user’s manuals in English and
Traditional Chinese

1.4 Optional Accessory

Item Q’ty Description

RJ-45 twin head link cable 1 L: 450mm
RJ-45 twin head link cable 1 L: 1000mm

RJ-45 twin head link cable 1 L: 2000mm

RJ-45 twin head link cable 1 L: 4000mm

DB-9F single head link cable 1 L: 7000mm

Across HV head + HV cable 1 L: 2000mm
Black banana head + HV cable 1 L: 2000mm

Remark: Optional accessory is for link test model of 19073 + RS485.

1.5 Initial Inspection

Before shipment, this instrument was inspected and found to be free of
mechanical and electrical defects. As soon as the instrument is unpacked,
inspect for any damage that may have occurred in transit. Save all
packing materials in case that the instrument has to be returned. If
damage is found, please file claim with carrier immediately. Do not return
the instrument to Chroma without prior approval.

5

HIPOT Tester 19071/19072/19073 Quick Start Guide

2. Operation and Setting

2.1 Front Panel

The front panel is divided into several function areas. This section
explains each control and the information displays on LCD.

Button Area
Stop Button Display Area

Button Area

unction Key Display Area Function Keys

Power Switch Status Line Pass Indicator Test Status Indicator

Start Button Calibration Switch Fail Indicator Common Test Terminal

High Voltage Output Terminal

Terminal Area

2.1.1 Display Area

 Function Key Display Area: Different function text appears in different

menu. The mapping function keys (F1-F4) are located at right. The
function key is invalid if the text is blank.

 Status Line: This line shows the setting mode, value range, and test

results.

6

HIPOT Tester 19071/19072/19073 Quick Start Guide

 RMT : When the text is highlighted, it means the system is under on-

line status.

 LOCK: When the text is highlighted, it means the system is under

protection via parameter.

 OFST: When the text is highlighted, it means the leakage current has

been offset by the system.

 ERR : When the text is highlighted, it means the system transmission

is error.

 Test State Indicator: The DANGER indicator, when it lights up it

indicates the instrument is under test condition and there is high
voltage or mass current output on the test terminal. Do not touch the
test terminal at this time.

 Pass Indicator: When it lights up it indicates the DUT passes the test.

This indicator remains lit up until [STOP] is pressed.

 Fail Indicator: When it lights up it indicates the DUT fails the test.

This indicator remains lit up until [STOP] is pressed.

2.1.2 Button Area

 Power Switch: The switch to supply the AC power source for this

instrument.

 Stop Button [STOP]: Press this button the instrument will return to the

ready state for testing and cut out output as well as clear all
judgments.

 Start Button [START]: Press this button the instrument will be in test

state, which means there are outputs at the test terminal and all
judgment functions are activated.

 Calibration Switch: It is used by Chroma for calibration before

shipping the product. Nonprofessional is prohibited to use this
function to avoid causing any damage.

 Function Keys: There are different functions in different display menus.

7

HIPOT Tester 19071/19072/19073 Quick Start Guide

The mapping function description text is at right of the menu. The
function key is invalid if the description text is blank.

2.1.3 T erminal Area

 High Voltage Output Terminal: The terminal of high voltage with high

potential is located at high potential terminal for high voltage output.
This test terminal is very dangerous especially when the DANGER
indicator is lit up. Do not touch it when there is high voltage output.

 Common Test Terminal (RET/LOW): It is the reference terminal at

high voltage test, i.e. the low potential terminal almost equals to the
chassis grounding.

2.2 Rear Panel

The rear panel is divided into several areas. This section describes the

function of each area.

The standard rear panel of 19071/19072/19073:

(1) (7)

(2) (8) (9) (3) (5) (4) (6)

8

HIPOT Tester 19071/19072/19073 Quick Start Guide

The rear panel of link test model of 19073 + RS232 is shown as below:

(10)

The rear panel of link test model of 19073 + RS485 is shown as below:

(11)

(1) REMOTE CONTROL

■ The connection diagram of remote control signals is as the following.

9

HIPOT Tester 19071/19072/19073 Quick Start Guide

■ START: The input terminal for start test signal.

■ RESET: The input terminal for stop test signal.

■ COM: The common input terminal for START and RESET signal.

■ UNDER TEST: This terminal will short-circuit when in test mode, thus it

can be used to control the external signal. The connecting point
specification is 115V AC, current less than 0.3A. The action time is
from the instrument enters the test mode until it is reset or completes
the test.

■ PASS: This terminal will short-circuit when the DUT passes the tests,

thus it can be used to control the external signal. The connecting
point specification is 115V AC, current less than 0.3A. The action time
is from the DUT is passed until it is reset.

■ FAIL: This terminal will short-circuit when the DUT fails the tests, thus it

can be used to control the external signal. The connecting point
specification is 115V AC, current less than 0.3A. The action time is
from the DUT is failed until it is reset.

(2) VOLTAGE SELECTOR: Input Power Range Switch

■ To change the input AC power source for the following 4 types:

y Voltage range 90V ~ 110V AC (3.15AT, 250V)
y Voltage range 108V ~ 132V AC (3.15AT, 250V)
y Voltage range 198V ~ 242V AC (1.6AT, 250V)
y Voltage range 216V ~ 250V AC (1.6AT, 250V)

■ Be sure to use correct fuse when switch the power source.

(3) AC LINE: AC Power Socket and Fuse Holder

It is a three-pin power socket and a fuse holder. AC power is inputted
from this socket to supply the AC source needed by this instrument.

10

HIPOT Tester 19071/19072/19073 Quick Start Guide

For detailed usage and specification of fuse, see Chapter 3 Installation
and Maintenance.

(4) EARTH GROUND TERMINAL: Terminal Grounding for Safety

Use appropriate tools to ground this terminal surely. If it is not
grounded surely, when the power circuit or any other devices
connection short-circuited with the ground terminal, the instrument
chassis may contain high voltage. This is very dangerous as it may
cause electric shock if anyone touches it under the situation; therefore,

it is necessary to connect the ground terminal to earth assuredly.

(5) CONTINUITY CHECK: Ground continue measuring and current

output terminal

This function is for detecting ground continues of DUT grounding
terminal.

(6) FAN

The fan is activated simultaneously when the tester is powered on.

(7) Expanded Slot

The standard is 5PIN terminal slot, this slot provides the following
functions:

■ The connection diagram of expanded slot signals is as the following.

■ START: Input terminal of starting test signal.

■ RESET: Input terminal of stopping test signal.

■ COM : Input common terminal of START and RESET signals.

■ INTER LOCK: Short-circuited these two terminals then can output high

11

HIPOT Tester 19071/19072/19073 Quick Start Guide

voltage. (This function is only for installing 5PIN on expanded slot. If

this unit is link test model of 19073 + RS485, these two terminals are

short-circuited fixedly.)

(8) HV OUTPUT Terminal

This terminal is the same as HV output terminal of front panel.

(9) Common Test Terminal: RET/LOW

This terminal is the same as common test terminal of front panel.

(10) RS-232 Interface Card:

This socket is for RS-232 interface which provided by the tester, it
uses binary code transmission mode. Its command format is the
same as RS-485 interface.

(11) RS-485 Slot

This slot supports two sockets of RJ-45 which provides multi-link

function for the link test model of 19073 + RS485.

2.3 How to Perform Tests

■ Test Cable Offset Calibration

(1) In [Standby Menu], press Function Key [MORE..] to enter the test

menu of multiple STEPS.

(2) Press Function Key [OFFSET], the monitor will show a menu to

indicate you to open the output terminal.

(3) Press [START], the DANGER indicator on the front panel will light

up. The test time is 5 seconds. The system starts to measure
the test cable offset and shows the reading on monitor, then saves
it to memory.

■ Connection the DUT

First, ensure there is no voltage output and the DANGER indicator is off.
Then connect the low potential test cable (black) to the common test
terminal on system, and secure it with fixed plate. Short-circuit the test
cable and high voltage output terminal. After confirming no high
voltage is output, connect the DUT with low potential test cable first and
high potential test cable later, and then plug in the high voltage test
cable (red or white) to “High Voltage Output Terminal”.

12

HIPOT Tester 19071/19072/19073 Quick Start Guide

■ Test Step s(AC/DC/IR/GC)

(1) Connection the DUT with correct procedures.

(2) In [Standby Menu] (as shown below):

Line 1

Line 2

Line 3

Line 4

Line 5

(3) Press [STOP] to enable it standby for test and the “Status Line”

(4) Press [START] to begin the test. It will begin to output the test

STEP 1/2 AC LOW : OFF

0.050kV

0.500mA

3.0s

STANDBY RMT LOCK OFST ERR

1. STEP 1/2 in “Line 1” indicates there are 2 test steps, and
currently it is executing step 1. M02 1/2 in “Line 1”
indicates this test parameter set have saved into the index 2
memory. There are 2 test steps in the memory, and
currently it is executing step 1.

2. AC in “Line 1” indicates this step is AC HiPot test mode.

3. “Line 2” indicates the output voltage set for test.

4. “Line 3” indicates the high limit for leakage current under
STANDBY state in AC or DC HiPot test mode; or the low
limit for insulation resistance under STANDBY state in IR
test mode. When in TEST mode, it is the value of real
leakage current or insulation resistance.

5. “Line 4” indicates the testing time set under STANDBY state;
or the remaining testing time under TEST state.

6. “Line 5” is the “Status Line” that shows the current state or
test results.

shows “STANDBY”.

ARC : OFF
RAMP : OFF
FALL : OFF

MORE..

PROGRAM

PRESET

MENU

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HIPOT Tester 19071/19072/19073 Quick Start Guide

voltage. The DANGER indicator lights up and the “Status Line”
shows “UNDER TEST” to warn you that it is in test state and there
is mass voltage output. “Line 2” will show the output voltage
reading, “Line 3” will show the reading of leakage current or
insulation resistance, and “Line 4” performs timing and countdown
work.

(5) PASS Judgment

When all test steps are done and “Status Line” shows PASS, it
indicates the DUT is a quality product. Then the output is cut out,
rear panel outputs the PASS signal and buzzer (short beep) in the
meantime.

(6) FAIL Judgment

If the measurement is abnormal, the system will judge the DUT as a
failed product and cut out the output. The rear panel outputs FAIL
signal and buzzer (long beep) in the meantime. The action
continues until [STOP] key is pressed. “Status Line” will show fail

state as below. Please see page 2-16 “Description Table for Test
Result”.

(7) If any errors happen and cause the [START] key to be locked, you

can press [STOP] to release it.

(8) You can press [STOP] key anytime to stop the test output in any

case.

■ Test Steps(OS)

(1) Connection the DUT with correct procedures.

(2) In [Standby Menu] (as shown below):

Line 1

Line 2

Line 3

Line 4

STEP 1/1 OS OPEN : 50%

SHORT: 300%

0.100kV

0.0nF

0.1s

MORE..

STANDBY RMT LOCK OFST ERR

PROGRAM

PRESET

MENU

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HIPOT Tester 19071/19072/19073 Quick Start Guide

1. OS in “Line 1” indicates this step is open/short detection mode.

2. “Line 2” indicates the output voltage set for test.

3. “Line 3” indicates the capacitance value for reading.

4. “Line 4” indicates the test time.

(3) Press [STOP] to enable it standby for test and the “Status Line”

shows “STANDBY”.

(4) Please press [MORE..] to enter the test menu of multiple STEPS,

the menu as shown below:

OUTPUT MEASURE RESULT
1 OS 0.100kV 0.0nF -------

STANDBY RMT LOCK OFST ERR

OFFSET

GET Cs

MORE..

1. Please press [OFFSET] to perform OFFSET elimination at first.
It is needed to perform OFFSET elimination again when
change the wire or fixture every time. This is for ensure the
accuracy for the test.

2. It is need that the capacitance standard sample for the test as
the DUT when test or change new DUT of capacitance. Press
[GET Cs] to read the standard capacitance value for the value
when test.

3. Please press [MORE..] again to back to standby menu.

4. Press [START] to begin the test. It will begin to output the
voltage. The DANGER indicator lights up and the “Status
Line” shows “UNDER TEST” to warn you that it is in test state
and there is voltage output. “Line 2” will show the voltage
output reading, “Line 3” will show the reading of capacitance,
and “Line 4” performs timing and countdown work.

Note: When test OSC Mode, Get Cs current range at this time

decides the display of capacity effective digit.

Example: Get Cs voltage 0.018kV, Get Cs capacitance value

17.4nF, current= 1.18mA -- at the mass current range.

Get Cs voltage 0.016kV, Get Cs capacitance value

17.42nF, current= 0.97mA -- at the medium current range.
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HIPOT Tester 19071/19072/19073 Quick Start Guide

(5) PASS Judgment

When all test steps are done and “Status Line” shows PASS, it
indicates the DUT is a good product. Then the output is cut off,
rear panel outputs the PASS signal and buzzer (short beep) in the
meantime.

(6) FAIL Judgment

If the measurement is abnormal, the system will judge the DUT as
a failed product and cut off the output. The rear panel outputs
FAIL signal and buzzer (long beep) in the meantime. The action
continues until [STOP] key is pressed. “Status Line” will show fail
state as below.

Test Result Meaning

PASS Passed the tests judged as PASS product
HIGH FAIL Measurement is over the high limit
LOW FAIL Measurement is under the low limit

OPEN FAIL

SHORT FAIL

Capacitance open/capacitance reading is lower
than the setting of OPEN.
Capacitance short/capacitance reading is higher
than the setting of SHORT.

ARC FAIL Current ARC is over the high limit

I/O FAIL

NO OUTPUT

Hardware detects bad signal (It maybe short circuit
of DUT).
Output is not enough (It maybe the test time is not

enough).
VOLT OVER Voltage reading is over the hardware valid digits.
CURR OVER Current reading is over the hardware valid digits.

INRUSH FAIL

Charging current is over low (It maybe test fixture

bad contact).
GFI TRIPPED Grounding failed interrupted
SLAVE FAIL SLAVE communication fails

SKIPPED

Cs/SHORT FAIL

The step is skipped. To skip the step don’t need

to implement as conducting Get Offset or Get Cs.

The Cs is too high. To stop the detection of

SHORT may be resolve this problem.

(7) If any errors happen and cause the [START] key to be locked, you

can press [STOP] to release it.

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HIPOT Tester 19071/19072/19073 Quick Start Guide

(8) You can press [STOP] key anytime to stop the test output in any

case.

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HIPOT Tester 19071/19072/19073 Quick Start Guide

3. Installation and Maintenance

3.1 Notices for Installation

This instrument generates high voltage output up to 6KV for external test.
Any incorrect or mistaken procedures in using this instrument may cause
injury or death. Thus for your safety, be sure to read through the notices
described in this chapter and memorize them to prevent any accidents from
happening.

■ Induction and electric shock

To avoid electric shock, we suggest you to put on the insulation rubber
gloves before performing any electricity related work.

■ Grounding

There is a safety grounding terminal at the instrument rear panel.
Ensure to use appropriate tools to connect the grounding terminal surely.
If it is not grounding correctly, the chassis of test machine may contain
high voltage when the power circuit or the connecting line of any
devices short-circuited with the grounding terminal. This is very
dangerous as it may cause electric shock if anyone touches the
instrument under the circumstances. Therefore, it is necessary to

connect the safety grounding terminal to earth correctly. See 2.2 Rear
Panel Description for detail information.

■ Connecting test cable to the “Common Test Terminal”

Please connect the test cable to “Common Test Terminal” actually.
Always check if the test cable is connected properly during test. When
you need to connect the test cable to the unit for test, use the one on
Common Test Terminal first to connect the DUT. It is very dangerous if
the test cable on Common Test Terminal is not connected completely or

loose as the entire DUT may contain high voltage. Refer to 2.1 Front

Panel Description.

■ Connecting test cable to the “High Voltage Output Terminal”

Follow the procedures below to connect the high voltage output line
after the “Common Test Terminal” is connected.

• Press [STOP] button first.

• Ensure the DANGER indicator is off.

• Short circuit the “Common Test Terminal” test cable and “High

Voltage Output Terminal”, and ensure there is no voltage output.

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HIPOT Tester 19071/19072/19073 Quick Start Guide

• Last, connect the “Common Test Terminal” test line to the DUT and
then the high voltage test cable to the DUT.

• Plug in the high voltage test cable to the “High Voltage Output
Terminal”.

■ End test

When tests are done and the test instrument is not in use or need to
leave for a while during usage, make sure to turn off the power switch

(to O). See 2-1 Front Panel Description for detail information.

■ Dangerous places when the instrument is in test mode

It is very dangerous to touch the area with high voltage such as the DUT,
test cable, probe, and output terminal when the instrument is in test
mode.

Ú DO NOT touch the alligator clip as shown below on the test cable

when the system is in test mode as the rubber insulation is not
good enough and may cause danger if touched.

<<< 警告！當輸出端切斷時 >>>

Do not touch it when in high
voltage output

■ End test confirmation

You may touch the DUT, high voltage test cable or high voltage output
area like output terminal in order to alter the layout or perform particular
test request, thus be sure to turn off the power before doing it. For
testing the DC HiPot/insulation resistance, the DUT may contain high
voltage after completing the test, so you need to carefully follow the
instructions described in this chapter to perform the work.

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HIPOT Tester 19071/19072/19073 Quick Start Guide

3.1.1 Charging During DC HiPot/Insulation Resistance Test

■ Charge

When doing DC HiPot/insulation resistance test, the DUT, capacitor,
test cable, probe and output terminal, even the test instrument may
charge with high voltage. The charged voltage may need a period of
to discharge after the power switch is turned off. Do not touch any
places that may cause electric shock as mentioned above especially at
the moment of turning off the power.

■ Confirming the charged voltage is discharged totally

The test voltage applied as well as the DUT characteristics determine
the total discharge time for the charged voltage. Assuming the high
voltage on the DUT is the voltage plus a 0.01uF capacitor paralleling a
100MΩ resistance circuit, then after turning off the power the voltage on
test instrument and DUT takes about 3.5 seconds to decrease to 30V.
Thus when the test voltage is 500V, it needs about 2.8 seconds.
Suppose we already know the time constant of a DUT, you can follow
the description above to calculate the time required for voltage
decreasing to beneath 30V after turning off the power. The method is
using the time decreased to under 30V multiplies the time constant
ratio as the figure shown below.

<Formula>

Test Voltage * e

Ex.: 1000V * e
ln

–t/RC

–t/RC

–t/RC

= 30V

= ln 0.03

= Residual Voltage

- t / RC = -3.5

t = 3.5 sec

■ Remote control system

This system is capable of remote control. Usually it uses external

20

High Voltage
Output Terminal

Hipot Tester

Return Terminal

HIPOT Tester 19071/19072/19073 Quick Start Guide

control signal to do the high voltage output control. For your safety
and to prevent accidents, the following principles of control must be
performed accurately. Do not allow any unexpected high voltage
output to cause any hazards. When the system has high voltage
output, operators and other personnel are not allowed to touch the DUT,
test cable and probe and output terminal, etc.

■ Turn the power switch on or off ÚAttentionÚ

The product should be so positioned that the power switch can be
easily reached by the operator during emergency. Once the power
switch is cut off, wait a few seconds to turn it on again. Do not turn
on/off the power switch repeatedly to avoid causing any errors. It is
very dangerous to do repeating power on/of in high voltage output state.

The high voltage output terminal cannot connect to any objects
during power on or off to avoid hazards caused by abnormal high
voltage output.

■ Miscellaneous notices

Do not short circuit the instrument output line, grounding line,
transmission line, or other connector grounding line, and AC source to
avoid the entire test device being charged to a very dangerous voltage.
To short circuit the High Voltage Output Terminal and Common Test
Terminal, the instrument chassis must be grounded to earth first.

3.1.2 Emergency Events

■ Emergency management

In the emergency situations of electric shock, DUT on fire or system on
fire, follow the steps below to avoid causing bigger hazards.

• First, cut off the power switch.

• Then, unplug the power cord.

3.1.3 Solving Problems

■ When problem happens

The problems in the following conditions are very dangerous. The
output terminal may still have high voltage output even the [STOP]
button is pressed, so you need to be very careful.

• The DANGER indicator still lights up after the [STOP] button is

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HIPOT Tester 19071/19072/19073 Quick Start Guide

pressed.

• There is no reading on voltage meter, however the DANGER
indicator is lit.

When any of the above conditions happens, turn off the power and
unplug the AC power cord. Do not use it again as the failure is
very dangerous. Send it back Chroma or dealer for repair and
services.

■ DANGER indicator failure

If you press the [START] button and the voltage meter shows readings
but the DANGER indicator is still off, it means the indicator may be
failure. Turn the instrument off and replace it immediately, then return
the malfunction device to Chroma or dealer for repair and services.

■ Notices when operating the instrument of long duration under

normal condition

If the setting high limit closes to the rated value, pay attention to the
temperature changes. Stop using it if the ambient temperature is over
40°C. Wait until the temperature is down to normal to resume the
operation, and the instrument must be inspected first.

■ There are four types of AC INPUT power source used in this

instrument

Switch the voltage selector on the rear panel to the correct position
according to the voltage used locally. Ensure the AC power source is
same as marked on the power switch that located on the rear panel,
and the fuse is changed to the appropriate one when plug in the power
cord. Following table lists the fuses for the voltage used:

Center Voltage Range Fuse

100V
120V
220V
240V

90V ∼ 110 V
108V ∼ 132V
198V ∼ 242V
216V ∼ 250V

3.15A Slow/250V

3.15A Slow/250V

1.6A Slow/250V

1.6A Slow/250V

The fuse should conform to the voltage used and replace it when the
power cord is unplugged to avoid electric shock. When replacing the
fuse, press the fuse holder inside the power socket then remove the
existing fuse and insert the new one, then plug in the power cord.

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HIPOT Tester 19071/19072/19073 Quick Start Guide

N

CAUTIO

Be sure to use correct fuse when changing it, or it may
cause danger easily.

■ This instrument operates in AC power source.

If the power source is unstable in the range selected, it may cause the
instrument to act abnormally or inaccurately. Please use appropriate
equipment such as power regulator to convert it to applicable power
source.

■ This instrument uses the power transformer 200VA or above.

If the tested device draws a great amount of current, it may flow in large
current (about 10 Ampere) up to 10mS before the judgment of fail and
output current cut off. The same situation may occur before
performing the test. Thus it is necessary to pay attention to the
capacity of power cord and the current line linked with other

instruments and devices.

■ Storage

The normal temperature range is 18°C~28°C, ≤ 70% RH. The
operation may incorrect if over the range. The storage temperature is

-10ºC~60°C, ≤ 80% RH. If you are not planning to use it for a long
period of time, pack it with the original box for storage. For the sake of
correct test and safety of this instrument, make sure not to store it in a
place with direct sunlight or high temperature, also away from shaky,
damp and dusty area.

■ Warming up

This instrument activates at power on; however, in order to meet the
accuracy specified in the specification, please warm it up for 15
minutes or above.

■ Warning Signal of Testing

“DANGER – HIGH VOLTAGE TEST IN PROGRESS,

UNAUTHORIZED PERSON KEEP AWAY”

■ Keep test cable away from the panel

Please keep the high voltage cable or the DUT away from the panel at
least 30 cm during operation to avoid the display interference caused by
high-voltage discharge.

■ Notices for connecting automated device

y The grounding system of the device and the automated station

23

HIPOT Tester 19071/19072/19073 Quick Start Guide

should be connected together.

y Add anti-interference iron core to the high voltage cable and the 2

ends (device output and DUT) of RTN/LOW test cable with
winding at least 1 circle.

y The high voltage and RTN/LOW test cable must be separate from

the control cable.

y The high voltage and RTN/LOW test cable must keep proper

distance from the tester panel.

3.2 Notices for Maintenance

Except notified in the manual there is no items can be maintained by user
in this device.

Please contact Chroma or sales agent when any abnormal condition occurs
in this device. Do not perform maintenance by yourself to avoid causing
any unnecessary hazards that may damage the device.

3.3 Troubleshooting

Besides replacing the fuse (see 3.1.3 Solving Problems) or other notified in
the manual, there is no troubleshooting to be performed by user.

Please contact Chroma or sales agent when any abnormal condition occurs
in this device. Do not perform maintenance by yourself to avoid causing
any unnecessary hazards that may damage the device.

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HIPOT Tester 19071/19072/19073 Quick Start Guide

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