Hioki 3283 Instruction Manual

3283

CLAMP ON

LEAK HiTESTER

INSTRUCTION MANUAL

i

Contents

Introduction 1
Inspection

1

Safety Notes

2

Notes on Use

5

Chapter Summary

11

Chapter 1 Product Outline

13

1.1 Product Outline

13

1.2 Features

13

1.3 Parts and Functions

16

Chapter 2 Measurement Procedure

19

2.1 Preparations

19

2.2 Leak Current Measurement

A

20

2.3 Filter Function FILTER

27

2.4 Data Hold Function

HOLD

28

2.5 Recording Function REC

28

2.6 Auto Power-Off Function

APS

33

2.7 Battery Low Warning

33

2.8 Beep Tone

33

2.9 Fast Mode

34

2.10 Output Function OUTPUT

35

Chapter 3 Battery Replacement

39

Chapter 4 Attaching the Hand Strap

41

Chapter 5 Specifications

43

5.1 Measurement Specifications

43

5.1.1 AC current Arms(true rms indication)

44

5.1.2 Frequency Hz

45

5.2 General Specifications

46

Chapter 6 Troubleshooting

51

Chapter 7 Service

55

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1

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Introduction

Inspection

Thank you for purchasing the HIOKI "3283
CLAMP ON LEAK HiTESTER." To obtain
maximum performance from the product,
please read this manual first, and keep it
handy for future reference.
We have tried to bring this manual as close
to perfection as we could achieve. If
perchance you find any unclear portions,
mistakes, omissions, or the like, we would be
most obliged if you could please notify us of
them via any HIOKI agent, or directly.

When you receive the product, inspect it
carefully to ensure that no damage occurred
during shipping. In particular, check the
accessories, panel switches, keys, and
terminals. If damage is evident, or if it fails to
operate according to the specifications, contact
your dealer or HIOKI representative.

Accessories

9399 Carrying Case 1
Hand Strap 1
Battery: 6F22(006P) 1
Instruction manual 1

Options

9094 OUTPUT CORD
9445-02 AC ADAPTER

(SA10-0910N, SINO-AMERICAN)

9445-03 AC ADAPTER (EU)

(SA10-0910G, SINO-AMERICAN)

2

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DANGER

This product is designed to conform to IEC
61010 Safety Standards, and has been
thoroughly tested for safety prior to shipment.
However, mishandling during use could result
in injury or death, as well as damage to the
product. Be certain that you understand the
instructions and precautions in the manual
before use. We disclaim any responsibility for
accidents or injuries not resulting directly from
product defects.

Safety Notes

This manual contains information and warnings
essential for safe operation of the product and
for maintaining it in safe operating condition.
Before using the product, be sure to carefully
read the following safety notes.

3

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The symbol printed on the product
indicates that the user should refer to a
corresponding topic in the manual (marked
with the symbol) before using the
relevant function.
In the manual, the symbol indicates
particularly important information that the
user should read before using the product.

Indicates AC (Alternating Current).

Indicates DC (Direct Current).

Indicates a double-insulated device.

Wear appropriate protective insulation
(insulating rubber gloves and boots, helmet
and etc.) when connecting and disconnecting
from live electric circuits.

DANGER

Indicates that incorrect operation presents an
extreme hazard that could result in serious
injury or death to the user.

WARNING

Indicates that incorrect operation presents a
significant hazard that could result in serious
injury or death to the user.

CAUTION

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

NOTE

Advisory items related to performance or
correct operation of the product.

Safety symbols

The following symbols in this manual indicate
the relative importance of cautions and
warnings.

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CAT I Secondary electrical circuits connected to an AC

electrical outlet through a transformer or similar
device.

CAT II Primary electrical circuits in equipment connected to

an AC electrical outlet by a power cord (portable tools,
household appliances, etc.)

CAT III Primary electrical circuits of heavy equipment (fixed

installations) connected directly to the distribution
panel, and feeders from the distribution panel to
outlets.

CAT IV The circuit from the service drop to the service

entrance, and to the power meter and primary
overcurrent protection device (distribution panel).

Measurement categories
(Overvoltage categories)

This product complies with CAT III safety
requirements.
To ensure safe operation of measurement
product, IEC 61010 establishes safety
standards for various electrical environments,
categorized as CAT I to CAT IV, and called
measurement categories. These are defined as
follows.

Higher-numbered categories correspond to
electrical environments with greater momentary
energy. So a measurement device designed for
CAT III environments can endure greater
momentary energy than a device designed for
CAT II.
Using a measurement product in an
environment designated with a higher-numbered
category than that for which the product is rated
could result in a severe accident, and must be
carefully avoided.
Never use a CAT I measuring product in CAT
II, III, or IV environments.
The measurement categories comply with the
Overvoltage Categories of the IEC60664
Standards.

5

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DANGER

Before using the product the first time, verify
that it operates normally to ensure that the no
damage occurred during storage or shipping. If
you find any damage, contact your dealer or
Hioki representative.
When conductors being measured carry in
excess of the safe voltage level (SELV-E)

and
not more than 300 V, to prevent short circuits
and electric shock while the clamp sensor jaw
is open, make sure that conductors to be
measured are insulated with material
conforming to (1) Overvoltage Category

Ⅲ

,(2)

Pollution Degree 2

, and (3) Basic Insulation
Requirements for Working Voltages of 300 V.
Refer to the following standards regarding the
meanings of underlined terms.

IEC61010-1
IEC61010-2-031
IEC61010-2-032

Notes on Use

Follow these precautions to ensure safe
operation and to obtain the full benefits of the
various functions.

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DANGER

Do not use clamp testers on bare conductors.
When the clamp sensor jaw is open, there is a
risk of short-circuits and accidents that could
result in injury or death.
Use clamp testers only on power lines up to AC
300 V rms, to avoid short-circuits and accidents
that could result in injury or death.
This product should only be connected to the
secondary side of a breaker, so the breaker can
prevent an accident if a short circuit occurs.
Connections should never be made to the
primary side of a breaker, because unrestricted
current flow could cause a serious accident if a
short circuit occurs.
Use only the specified Model 9445-02 (SA10­0910N, SINO-AMERICAN) or 9445-03 (for EU)
(SA10-0910G, SINO-AMERICAN). AC adapter
input voltage range is 100 to 240 V AC (with
10% stability) at 50/60 Hz. To avoid electrical
hazards and damage to the product, do not
apply voltage outside of this range.

7

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WARNING

To avoid electric shock, do not allow the
product to get wet, and do not use it when your
hands are wet.
To avoid electric shock when measuring live
lines, wear appropriate protective gear, such as
insulated rubber gloves, boots and a safety
helmet.
To avoid electric shock when measuring the
ground conductor on a transformer Class 2
connection site, be careful not to approach high
voltage devices or conductors. Also, if close to
high voltage charging devices or if
measurement is otherwise difficult, first change
the route of the grounding wire.
To avoid electric shock when replacing the
batteries, first disconnect the clamp portion
from the object to be measured. Also, before
using the product after replacing the batteries,
replace the cover and screw.
When replacing the batteries, be sure to insert
them with the correct polarity. Otherwise, poor
performance or damage from battery leakage
could result.
To avoid the possibility of explosion, do not
short circuit, disassemble or incinerate
batteries.
Handle and dispose of batteries in accordance
with local regulations.

8

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CAUTION

This is a precision instrument: do not clamp any
foreign objects in the end of the clamp sensor, or
insert anything in the clamp sensor gap.
To avoid damage to the product, protect it from
vibration or shock during transport and handling,
and be especially careful to avoid dropping. Do not
exert excessive pressure on the clamp sensor or
attempt to wedge the sensor into a tight spot for
measurement.
To avoid damage to the product, do not exceed the
maximum input current rating, which depends on
the frequency of the current being measured (see
following Figure).

Frequency [Hz]

Fre

q

uency-dependent deletion characteristics

C

u

r

r

e

n

t

[

A

]

9

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CAUTION

Do not use the unit if the battery is exhausted
(when the mark lights in the display area). Be
sure to replace the exhausted battery with a new
one.
When replacing the battery, make sure that the
metal battery snap fitting is firmly connected. If the
metal fitting is loose, adjust it and recheck the
connection. If it isn't connected securely, the power
may not be turned on, and a power may be turned
off during the use.
Adjustments and repairs should be made only by
technically qualified personnel.
For the inside memory protection, make sure the
power is turned off before connecting or
disconnecting the AC adapter.
This product is designed for indoor use, and
operates reliably from 0 to 40 .
Do not store or use the product where it could be
exposed to direct sunlight, high temperature or
humidity, or condensation. Under such conditions,
the product may be damaged and insulation may
deteriorate so that it no longer meets specifications.

10

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NOTE

For circuits which carry several superimposed
currents, correct measurements may not be
obtained.
Accurate measurement may be impossible in
the presence of strong magnetic fields, such
as near transformers and high-current
conductors, or in the presence of strong
electromagnetic fields such as near radio
transmitters.

11

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Chapter Summary

This manual consists of the following chapters.
"Introduction", "Safety Notes", "Notes on Use"
describe precautions on use, overview, and
features of this unit.
Be sure to read them all. Next, check Chapter
1 to 3 and the unit to confirm your
understanding of the function.

Chapter 1 Product Outline

Explains the parts and functions of the unit.

Chapter 2 Measurement Procedure

Explains how to use the 3283 for measurement.

Chapter 3 Battery Replacement

Explains how to replace the battery used to
power the 3283.

Chapter 4 Attaching the Hand Strap

Explains how to attach the hand strap, for easy
handling of the unit in the field.

Chapter 5 Specifications

Lists the specifications of the 3283 CLAMP ON
LEAK HiTESTER.

Chapter 6 Troubleshooting

Describes points to check before requesting
service.

Chapter 7 Service

Explains how to get the unit serviced.

12

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13

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Chapter 1 Product Outline

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Chapter 1

Product Outline

1.1 Product Outline

1.2 Features

The 3283 CLAMP ON LEAK HiTESTER is
designed for wide-range measurement on live
circuits, from very small leak currents up to load
currents of 200 amperes. The clamp part is
made of material with high magnetic
permeability, to minimize adverse effects
caused by external magnetic fields, and to
reduce tolerances due to the position of the
measured conductor.

High-sensitivity range with 10 mA full-scale point

Allows accurate measurement even of minute
leak currents (resolution 10μA).

Wide measurement range

Five range settings from 10 mA to 200 A make
the 3283 suitable for many applications.

Microprocessor-controlled functions

In spite of the compact dimensions of the unit,
versatile functions such as SLOW and MAX/MIN
are made possible by the built-in
microprocessor.

14

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Chapter 1 Product Outline

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True rms indication

The true rms conversion circuit delivers accurate
results not affected by leak current distortion.

Filtering

The widespread use of switching power supplies
and equipment incorporating inverter technology
frequently causes harmonics to be
superimposed in the leak current waveform. The
filter in the 3283 allows two kinds of
measurement, for leak current caused by
insulation faults and for leak currents including
harmonics.

Output jack

The output jack allows easy connection to a
level recorder or other equipment (level
recorder output: DC, waveform output: AC).

Unaffected by external magnetic fields and

conductor position
The clamp sensor and magnetic shield are
made of material with high magnetic
permeability, allowing precise measurement also
in the vicinity of transformers, electric motors
and other sources of magnetic fields. Since the
influence of the conductor position on the
measurement result is negligible, residual
current characteristics are not a problem even
when using the unit as a zero-phase
transformer.

Low power consumption

Power consumption is less than 100 mV A,
allowing the unit to operate continuously for up
to 40 hours on a single 6F22 (006P) battery.

15

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Chapter 1 Product Outline

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Dual power supply design

The unit can be powered using the optional
9445-02 AC adapter (SA10-0910N, SINO­AMERICAN), 9445-03 AC adapter (for EU)
(SA10-0910G, SINO-AMERICAN), or from a
battery.

16

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Chapter 1 Product Outline

_____________________________________________

Top and Side View

1

2

3

4

5

6

7

8

1.3 Parts and Functions