3283

CLAMP ON

LEAK HiTESTER

INSTRUCTION MANUAL

Contents

Introduction

Inspection

Safety Notes

Notes on Use

Chapter Summary

Chapter 1 Product Outline

1.1 Product Outline

1.2 Features

1.3 Parts and Functions

Chapter 2 Measurement Procedure

2.1 Preparations

2.2 Leak Current Measurement A

2.3 Filter Function FILTER

2.4 Data Hold Function

HOLD

2.5 Recording Function REC

2.6 Auto Power-Off Function

APS

2.7 Battery Low Warning

2.8 Beep Tone

2.9 Fast Mode

2.10 Output Function OUTPUT

Chapter 3 Battery Replacement

Chapter 4 Attaching the Hand Strap

Chapter 5 Specifications

5.1 Measurement Specifications

5.1.2 Frequency Hz

5.2 General Specifications

Chapter 6 Troubleshooting

Chapter 7 Service

16

19

19

20

11

13

13

13

1

1

2

5

33

33

34

35

39

27

28

28

33

41

43

43

45

46

51

55 i

ii

Introduction

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.

Inspection

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)

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Safety Notes

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.

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.

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Safety symbols

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.

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

DANGER

WARNING

CAUTION

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

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

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.

_____________________________________________

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.

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).

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

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Notes on Use

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

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 CategoryⅢ, (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

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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 (SA10-

0910N, 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.

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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.

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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]

Frequency-dependent deletion characteristics

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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.

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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.

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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

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Chapter 1

Product Outline

1.1 Product Outline

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.

1.2 Features

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.

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Chapter 1 Product Outline

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.

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Chapter 1 Product Outline

Dual power supply design

The unit can be powered using the optional

9445-02 AC adapter (SA10-0910N, SINO-

AMERICAN), 9445-03 AC adapter (for EU)

(SA10-0910G, SINO-AMERICAN), or from a battery.

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Chapter 1 Product Outline

1.3 Parts and Functions

Top and Side View

1

7

2

3

8

4

6

5

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Chapter 1 Product Outline

1. Clamp sensor

2. Operation lever

3. Key switches

4. Display (LCD)

5. Output jack

6. AC adapter jack

7. Rear cover

8. Hand Strap

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Chapter 1 Product Outline

AC

AUTO Auto-range

SLOW Update display once every 3 seconds

REC Record function

MAX Maximum value

MIN Minimum value

AVE Average value = (maximum value + minimum value/2)

min 1 minute/segment (bar graph)

hour 1 hour/segment (bar graph)

HOLD

Data hold function

APS

Auto power off function

MON

Waveform output (AC) is active

REC Recording output (DC) is active

FILTER Filter function is active

Hz Frequency

A, mA current

RMS True root mean square value

Input over (bar graph)

Battery low warning

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Chapter 1 Product Outline

Chapter 2

Measurement Procedure

2.1 Preparations

1. Remove the rear cover and insert the battery.

(Refer to "Chapter 3 Battery Replacement".)

2. Press the

POWER

key to turn the unit on.

Verify that all segments of the display light up briefly. Then the model name is shown, and the bar graph indicates the battery condition for a second.

Fresh battery

Battery capacity 50%

Battery capacity 0

Beep tone sounds 3 times

3. The AC current measurement mode is activated

【

Battery low voltage power-off】

After the mark lights and battery voltage drops below a certain level, for the inside memory protection, the power goes off automatically. When this occurs, bAtt and Lo are displayed.

When power goes off after display of these marks, replace the exhausted battery with a new one.

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Chapter 2 Measurement Procedure

2.2 Leak Current Measurement A

1. Press the A key.

2. Clamp the tester on the conductor, so that the conductor passes through the center of the clamp sensor. For measurement of grounded leads, clamp the tester on one lead only (see a). For overall measurements, clamp the tester on the entire circuit path (see B).

single-phase 3-lead circuits b clamp all three leads of the circuit

Transformer

Ig: leak Current

Ig

E (PE) a b

Load device

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Chapter 2 Measurement Procedure

three-phase 3-lead circuits b clamp all three leads of the circuit b

Ig

Load device a

NOTE

E (PE) a

PE

For measurement of single-phase 2-lead circuits, clamp both leads of the circuit.

For measurement of three-phase 4-lead circuits, clamp all four leads of the circuit. If this is not possible, the measurement can also be carried out on the ground lead of the equipment.

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Chapter 2 Measurement Procedure

NOTE

3. The effective value (

RMS

) of the leak current is shown on the digital display. The selected current range is shown at the bottom of the display.

Do not input current that exceeds the maximum continuous input of the electric current range.

Measurement may not be accurate in the cases below.

(1) When there is large current (of about 100

A) flowing through a nearby electric line

(2) When using the 3283 to measure special waveforms, such as those on the secondary side of an inverter

Note that a value of several tens of amperes may be displayed when opening or closing the clamp sensor, or when changing the electric current range. This is not an error. It may take some time for the display to return to zero.

However, starting measurement before the display returns to zero will not affect measurement.

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Chapter 2 Measurement Procedure

【

Checking for insulation faults】

Normally, for a E (PE) grounding installation of a transformer, the measurement will first be made to check for overall circuit leak current in the ground lead (a). Current changes can be used to diagnose the leak current condition.

When leak current has been detected, the measurement should proceed from the power source towards the load, using overall measurement.

1. If an insulation fault in the wiring has occurred at position A in the illustration, leak current will be detected at position b using overall measurement, but not at position b'.

2. If an insulation fault in the load equipment has occurred at position B in the illustration, leak current will be detected at position c using overall measurement, but not at position c'.

3. For detection of intermittent leak current conditions (such as only when a certain piece of equipment is operating), the use of a level recorder will be helpful.

single-phase 3-lead circuits b b′ c c′ a

A

Ig

Load device

Load device

B

E (PE)

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Chapter 2 Measurement Procedure

【

Range switching】

Each push of the RANGE key switches the range in the order 10 mA → 100 mA → 1 A →

10 A → 200 A → AUTO.

【

Changing the display characteristics SLOW】

If the indicated current value fluctuates rapidly and is hard to read, you can select a slower update rate (once every 3 seconds) by pressing the SLOW/Hz key.

The key cycles through the following modes:

SLOW→Hz→RMS

NOTE

The update speed cannot be changed for frequency display.

【

Bar graph display BAR GRAPH】

The current range display can be switched to bar graph operation. The bar graph shows the rms value of the measured current.

The bar graph display refresh rate is "FAST" (4 times per second).

1. Press the BAR GRAPH key.

2. The current range display is switched to bar graph operation.

Each push of the BAR GRAPH key toggles between the following modes:

NOTE

RMS value display→Current range display

The flashing segment indicates the full-scale position.

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Chapter 2 Measurement Procedure

【

Frequency (Hz) display】

1. While the display is switched to SLOW mode, press the SLOW/Hz key.

2. The frequency of the measured current is displayed.

If there is no input, and input is lower than

30Hz, "----" is shown.

Each push of the SLOW/Hz key cycles through the following modes:

NOTE

SLOW→Hz→RMS

There is no frequency output function.

Enable the filter function (see 2.3) when conducting measurement in the cases below.

(1) When meaningless data is displayed due to noise

(2) When using the 3283 to measure special waveforms, such as those on the secondary side of an inverter

The 3283 may not be able to perform measurement in the cases below.

(1) When using input current that is 1/10 or less of the full electric current range

(2) When measuring high frequencies with the filter function enabled

The range display (AUTO and Bar graph) indicates the electric current range.

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Chapter 2 Measurement Procedure

【

Load current measurement】

Be sure to clamp only one lead of the conductor.

NOTE

X

The frequency of special waveforms such as at the secondary side of an inverter may not be indicated correctly.

Depending on the magnitude and frequency of the input current, resonances may be heard from the clamp jaw. This does not affect the measurement.

When the size of input current is unknown, begin measurement with the 200 A range (filter function is invalid) selected .

Do not input a current which exceeds the maximum continuous input rating of the current range.

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Chapter 2 Measurement Procedure

2.3 Filter Function FILTER

The widespread use of switching power supplies and equipment incorporating inverter technology can cause harmonics to be superimposed on the leak current waveform.

1. Press the FILTER key. The FILTER indication appears. The integrated low-pass filter is now active, cutting off unwanted higher-frequency components.

2. Pressing the FILTER key once more turns the low- pass filter off, allowing measurement of leak current including any high-frequency components. The FILTER indication disappears.

output rate：1 V/10 mA

Frequency [Hz]

MON output frequency bandwidth (example: 10 mA range)

NOTE

The effect of the filter function is reflected in numeric data output and waveform output.

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Chapter 2 Measurement Procedure

2.4 Data Hold Function

HOLD

This function allows freezing the display at any desired point for easy reading.

1. Press the HOLD key. The

HOLD

indication appears on the display and the digital display value is maintained.

To cancel the data hold function, press the

HOLD key again.

2.5 Recording Function REC

The recording function can be used to display the maximum display value, minimum display value, maximum/minimum average, and the instantaneous value.

1. Press the RANGE key to select the current measurement range.

2. Press the MAX/MIN key while measuring current with the conductor clamped. The REC indication flashes and the maximum, minimum, or average value for the period starting when the key was pressed to the present point can be displayed. The instantaneous value can also be displayed. Only one of these values can be shown at any one time, but the other values are kept in memory.

NOTE

Pressing the MAX/MIN key during autoranging (AUTO) fixes the range at the current setting.

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Chapter 2 Measurement Procedure

3. During measurement, the MAX/MIN key can be used to select the value that should be shown.

MAX: Maximum value is shown.

MIN: Minimum value is shown.

AVE: Average value is shown = (maximum value + minimum value)/2

If none of the MAX, MIN, or AVE indicators is shown, the display shows the instantaneous value.

4. Pressing the HOLD key will stop the recording function. The

HOLD

indication appears and the

REC indication stops flashing.

By pressing the MAX/MIN key in this condition, the MAX, MIN, and AVE values stored in the internal memory can be called up on the display, as follows.

MAX→MIN→AVE→instantaneous value

(no indication)

While

HOLD

is shown, the elapsed time is not incremented. Also if the clamp sensor is removed from the conductor for easier reading, the minimum value will not return to zero.

Pressing the HOLD key once more causes the

HOLD

indication to go out. The recording function resumes, and REC flashes again.

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Chapter 2 Measurement Procedure

NOTE

Momentary power loss and power surges cannot be detected.

When the unit is turned off, accumulated data are lost.

The maximum recording duration depends on the remaining battery capacity.

The lowest possible frequency that can be displayed is 30.0 Hz.

If the measurement object was clamped after activating the recording function, the minimum value is always zero. To prevent this, clamp the conductor first and the press the

MAX/MIN key to activate the recording function.

If the clamp sensor is removed from the measurement object while the recording function is active, the minimum value will become zero. To prevent this, press the

HOLD key before removing the clamp sensor.

To turn off the recording function, press

A key. The maximum value, minimum value, and average value are cleared.

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Chapter 2 Measurement Procedure

【

Bar graph indication BAR GRAPH】

The bar graph display can be changed. It is also possible to display the current range, effective (rms) value of the measured current, and the elapsed time (hours and minutes).

1. Press the BAR GRAPH key.

2. The current range display switches to bar graph indication.

Each push of the BAR GRAPH key cycles through the following modes: rms value → elapsed time → elapsed time → current range

(instantaneous value) (hours) (minutes)

When the elapsed time display is activated, the bar graph segments flash and the elapsed time from the point when the MAX/MIN key was pressed is displayed.

When "min" is shown in the right-hand corner of the bar graph, each segment of the bar graph corresponds to one minute. Every time one minute elapses, one segment of the flashing bar graph goes on. When all segments on the bar graph go on, the elapsed time is 30 minutes.

When the elapsed time exceeds 30 minutes, one segment of the flashing bar graph goes off every time one minute elapses.

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Chapter 2 Measurement Procedure

When the segments left of a flashing segment remain on: the number of "on" segments represents the elapsed time (0 to 29).

The illustration below shows when 20 minutes have elapsed:

When the segments right of a flashing segment remain on: the number of "off" segments (+30) represents the elapsed time (30 to 59).

The illustration below shows when 50 minutes have elapsed:

When "hour" is selected, one segment corresponds to one hour, and the maximum length of time that can be displayed is 59 hours.

The illustration below shows indication when 1 hour 40 minutes have elapsed.

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Chapter 2 Measurement Procedure

2.6 Auto Power-Off Function

APS

When

APS

is displayed, the auto power-off function is active.

If no key is pressed for about 10 minutes, the unit turns itself off automatically.

Immediately before turning off, the

APS

indication flashes and a beep tone is heard for about 30 seconds.

Pressing any key except the

POWER

key will extend the powered state for another 10 minutes.

To disable the auto power-off function, hold down the HOLD key while turning the unit on by pressing the

POWER

key. The

APS

indication then is not shown.

While using the recording function or the output function of the unit, auto power-off is disabled.

2.7 Battery Low Warning

When this indication appears, the battery is exhausted and correct measurement is not assured. Replace the battery as early as possible.

Refer to "Chapter 2【Battery low voltage poweroff】".

2.8 Beep Tone

To disable the beep tone, hold down the

RANGE key while turning the unit on by pressing the

POWER

key.

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Chapter 2 Measurement Procedure

2.9 Fast Mode

NOTE

The display update rate can be set to 4 times per second. This is useful for example to measure load currents with frequent variations and similar applications.

1. Press the A key twice in succession.

The indication "F" is briefly shown, and the unit switches to fast mode. From now on, the indication "F" will appear every time the A key is pressed.To cancel the fast mode, press the A key twice in succession.

If SLOW is selected while the unit is in fast mode, the display update rate will be normal (2 times per second).

【

Example to measure load currents with

frequent variations】

1. Press the A key twice in succession to activate fast mode.

2. Press the RANGE key to set the current range to a fixed setting.

When the drive current is unknown, begin measurement with the 200 A range selected

3. Use the recording function to record the maximum value, for easier reading.

NOTE

Circuit time constant 200 ms MAX.

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Chapter 2 Measurement Procedure

2.10 Output Function OUTPUT

The output type is indicated by the REC

(recording output, DC) or

MON

(waveform output, AC) indication.

An output signal corresponding to the measured value can be obtained from the unit. The output voltage (AC/DC) normally is 1 V for the fullscale count (1000). In the 200 A range, the output voltage (AC/DC) is 2 V for the full-scale count (2000).

1. Press the RANGE key to set the current range to a fixed setting.

2. Press the OUTPUT key so that the REC indication appears. The output function is now active.

Auto power-off is disabled. (The

APS

indication goes out.)

Each push of the OUTPUT key cycles through the following modes:

REC (recording output) →

MON

(waveform output) → out

(auto power-off disabled) (auto power-off disabled) (auto power-off enabled)

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Chapter 2 Measurement Procedure

【

Output rate】

MON

(waveform output : AC)

REC (recording output : DC)

Current

Range

Output rate

10 mA AC/DC 1 V/10 mA

Accuracy

100 mA AC/DC 1 V/100 mA

1 A AC/DC 1 V/1 A

AC/DC:

3.0% rdg. 10 mV

(40Hz to 2 kHz)

10 A AC/DC 1 V/10 A

200 A AC/DC 2 V/200 A

Crest

Factor

2.5 or less

1.5or less

【

Output response】

REC

(Circuit time constant)

200 ms or less

MON frequency bandwidth

(-3 dB) 5 Hz to 15 kHz

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Chapter 2 Measurement Procedure

NOTE

To use the output function, be sure to push the

OUTPUT key so that either REC or

MON

is shown.

There is no frequency output function.

The filter function can be used to cut unwanted high- frequency components.

If the OUTPUT key is pressed while autorange (AUTO) is enabled, the range is fixed at the current setting (AUTO indication goes out).

For connection to a level recorder, use the separately available 9094 OUTPUT CORD.

Use a high-impedance input device (e.g., recorder) for receiving output. (We recommend a device with input impedance of at least 100 k

Ω.)

【

Using AC Adapter】

For long-term recordings, use the AC adapter (option).

NOTE

Even if the AC adapter is connected, if the battery is exhausted (the mark lights), the power may turn off in order to preserve the data in the internal memory. To continue using the instrument, replace the depleted battery with a new battery, or remove the battery completely.

When the AC adapter is used and there is a high amount of noise in the power line, the display may show several counts or noise may be present in the output. In such a case, connect the ground terminal of the level recorder or the L side of the input to ground.

Pressing the HOLD key does not hold the output signal.

Please note that the output signal is available also when REC and

MON

indications are out, but the auto power-off function is enabled.

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Chapter 2 Measurement Procedure

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Chapter 2 Measurement Procedure

Chapter 3

Battery Replacement

CAUTION

Do not fix the back casing screws too tightly.

The torque about 0.5N･m is recommended.

1. Remove the two fastening screws of the rear cover, using a Phillips screwdriver.

2. Remove the rear cover.

3. Remove the old battery without pulling the codes of the snap.

4. Securely connect the battery to the battery snap.

5. Replace the rear cover and tighten the fastening screws.

NOTE

Fix the terminals of battery snap and battery exactly.

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Chapter 3 Battery Replacement

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Chapter 3 Battery Replacement

Chapter 4

Attaching the Hand Strap

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

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Chapter 4 Attaching the Hand Strap

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Chapter 4 Attaching the Hand Strap

Chapter 5

Specifications

5.1 Measurement Specifications

Temperature and humidity for guaranteed

accuracy: 23 5 (73 9), 80% RH or less

Guaranteed accuracy period:1 year, or opening and closing of the Clamp Sensor

10,000 times, whichever comes first

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Chapter 5 Specifications

5.1.1 AC current Arms(true rms indication)

Current Range

(Accuracy

Range)

Resolution

10 mA

(1.00 to 10.00 mA) 0.01 mA

100 mA

(10.0 to 100.0 mA) 0.1 mA

1 A

(0.100 to 1.000 A) 0.001 A

10 A

(1.00 to 10.00 A)

0.01 A

Accuracy

(NOTE)

(%rdg.+dgt.)

Maximum permitted current

45 to 66 Hz:

(1.0%+5)

40 to 45

66 to 2 kHz:

(2.0%+5)

20 Arms

AC, continuous

(see fig. A)

200 A

(10.0 to 200.0 A)

0.1 A

45 to 66 Hz:

(1.5%+5)

40 to 45

66 to 2 kHz:

(2.0%+5)

200 Arms

AC, continuous

(see fig. A)

NOTE

Accuracy with filter function disabled.

When the filter function is enabled.

10 mA Range to 10 A Range:

50 Hz to 60 Hz (1.5%+5)

200 A Range: 50 Hz to 60 Hz (2.0%+5)

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Chapter 5 Specifications

Effect of conductor position

Effect of external magnetic fields

Maximum rated voltage to earth within 0.1%

(in any direction from clamp sensor center)

100 A MAX: within 0.5%

AC 400 A/m corresponds to 5 mA, max. 7.5 mA max. 300 V rms AC (insulated conductor)

Frequency [Hz]

Fig.A

Frequency-dependent deletion characteristics

5.1.2 Frequency Hz

NOTE

Frequency Range

(Accuracy Range) Resolution

100 Hz

(30.0 to 99.9 Hz)

0.1 Hz

1000 Hz

(95 to 1000 Hz)

1 Hz

Accuracy

(%rdg.+dgt.)

(0.3%+1)

(1.0%+1)

The frequency range is automatically specified.

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Chapter 5 Specifications

5.2 General Specifications

Functions

Recording

Data hold

Auto power-off

Battery low voltage power-off

Beep tone

Maximum (MAX), minimum (MIN), average (AVE) value display selectable for AC current and frequency measurement

Data hold function

Automatic shutdown after 10.5 1 minutes. Beep tone warning.

Extension and disabling possible.

When the battery voltage falls below a certain level, the function shuts down the unit to prevent malfunctions.

ON/OFF

Display LCD panel

Digital indication 2000 counts

Bar graph indication 35 segments

Current range display or rms display selectable

"O.L." (bar graph)

Over range warning sound (buzzer)

Over-range indication

Battery low warning

Battery low voltage power-off

"bAtt Lo"

(7 segments used)Power turned off after display

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Chapter 5 Specifications

Data hold indication

HOLD

Auto power-off indication

APS

Filter function Cutoff frequency 180 Hz 30 Hz

(-3 dB)

Display update rate

Digital indication

NORMAL: 500 ms 25 ms

(approx. 2 times/second)

SLOW : 3 s 0.15 s

(approx. 1 time/3seconds)

FAST : 250 ms 12.5 ms

(approx. 4 times/second)

Bar graph indication

FAST only

Display response time

Range switching

2.2 s max.

Output function

Output rate

Output Accuracy

Auto range, manual (fixed) range

(selectable). Frequency measurement with auto-range only.

REC (recording output),

MON (waveform output) (selectable)

REC : 1 V DC at full-scale point

(In the 200 A range only, 2

V DC/f.s.)

MON : 1 V AC at full-scale point

(In the 200 A range only, 2

V AC/f.s.)

3.0%rdg.

10 mV (40 to 2 kHz)

Output response REC (DC) : circuit time constant 200 ms max.

MON (AC) : frequency bandwidth

(-3 dB) 5 Hz to 15 kHz

Output impedance

200 Ω max.

_____________________________________________

Chapter 5 Specifications

Circuit dynamic characteristics

(crest factor)

2.5 max. (1.5 for 200 A range)

Withstand voltage Chassis - clamp core: 3536 Vrms AC for 15 seconds

Clamp core - circuitry: 630 kilohms min.

Insulation resistance

Location for use

Applicable standards

Indoor, altitude up to 2000 m

Maximum conductor diameter for measurement

Safety: EN 61010-1:2001

Voltage input: Pollution level

2, Measurement categories

Ⅲ (expected transient overvoltage: 4000 V)

EN 61010-2-032:2002

Type B current sensor

EN 60529:1991 IP40

(protected against access to hazardous parts with a wire)

EMC: EN 61326:1997+A1:1998+

A2:2001+A3:2003

EN 61000-3-2:2000

EN 61000-3-3:1995+A1:2001

φ40 mm max.

Operating temperature and humidity range

Temperature characteristics

Storage temperature range

0 to 40 , 80%RH or less

(no condensation)

In 0 to 40 range: 0.05 x accuracy specifications/

-10 to 50 (no condensation)

_____________________________________________

Chapter 5 Specifications

Power source

Maximum power consumption

Battery life

External dimensions

Mass

Accessories

Options

One 6F22 (006P) 9 V battery or

9445-02 AC ADAPTER

(SA10-0910N, SINO-AMERICAN) or

9445-03 AC ADAPTER (EU) (SA10-

0910G, SINO-AMERICAN) (option)

100 mVA approx. 40 hours

(continuous, no load) approx. 62W x 225H x 39D mm approx. 400 g

9399 CARRYING CASE 1

Hand Strap 1

Battery: 6F22(006P) 1

Instruction manual 1

9445-02 AC ADAPTER

(SA10-0910N, SINO-AMERICAN)

9445-03 AC ADAPTER (EU)

(SA10-0910G, SINO-AMERICAN)

9094 OUTPUT CORD

_____________________________________________

Chapter 5 Specifications

_____________________________________________

Chapter 5 Specifications

Chapter 6

Troubleshooting

If the unit seems not to be working normally, check the following points first before requesting service.

Problem lights lights, followed by immediate power shutdown

Cause

The battery may be low or depleted

Action

Problems related to the power supply

Power will not turn on

Power shuts off during operation

The battery may be low or depleted

Replace it with a new battery

The battery snap terminal may be deformed, causing contact failure

Remove the battery, then use radio pliers to straighten the battery snap terminal

When the AC adapter is used, power is only supplied through the AC adapter

When using the battery, disconnect the

AC adapter.

Insert the AC adapter into the

AC outlet

Replace it with a new battery

_____________________________________________

Chapter 6 Troubleshooting

Problem Cause Action

Problems related to display

An error between E.001

and E.005 or

E.100 is displayed.

Internal memory may be damaged

Request repair

Problems related to the clamp sensor

The clamp sensor generates a sound during measurement

When large current or highfrequency current is measured, resonance may occur, generating a sound

Reclamp the conductor.

Measure microcurrent or lowfrequency current to determine whether a sound is generated

_____________________________________________

Chapter 6 Troubleshooting

Problem Cause Action

Problems related to output function

The output rate differs from the specification

The output is too low

The 200 A range is used

Check the electric current range. Unlike other ranges, the full scale of the

200 A range is 2

V/fs

The input impedance of the device used to receive output is too low

MON output is used for measurement at high frequency

Check the input impedance of the device used to receive output. We recommend input impedance of at least 100 k Ω

The guaranteed range of accuracy is 40

Hz to 2 kHz. The specified frequency band of 5 Hz to 15 Hz is a -3 dB band.

At 15 kHz, the amplitude is reduced to approximately

70%

_____________________________________________

Chapter 6 Troubleshooting

_____________________________________________

Chapter 6 Troubleshooting

Chapter 7

Service

To clean the product, wipe it gently with a soft cloth moistened with water or mild detergent.

Never use solvents such as benzene, alcohol, acetone, ether, ketones, thinners or gasoline, as they can deform and discolor the case.

The minimum stocking period for replacement parts is five years after end of production.

For information regarding service, please contact your dealer or the nearest HIOKI representative.

If the unit is not functioning properly, check the battery. If a problem is found, contact your dealer or HIOKI representative. Pack the unit carefully so that it will not be damaged during transport, and write a detailed description of the problem. HIOKI cannot bear any responsibility for damage that occurs during shipment.

_____________________________________________

Chapter 7 Service

_____________________________________________

Chapter 7 Service

HIOKI 3283 CLAMP ON LEAK HiTESTER

Instruction Manual

Publication date: September 2006 Revised edition 13

Edited and published by HIOKI E.E. CORPORATION

Technical Sales Support Section

All inquiries to International Sales and Marketing

Department

81 Koizumi, Ueda, Nagano, 386-1192, Japan

TEL: +81-268-28-0562 / FAX: +81-268-28-0568

E-mail: [email protected]

URL http://www.hioki.co.jp/

･

Printed in J a p a n 3283A981-08 this manual, but if you find any points which are unclear or in error, please contact your supplier or the

International Sales and Marketing Department at HIOKI headquarters.

･ In the interests of product development, the contents of this manual are subject to revision without prior notice.

･ Unauthorized reproduction or copying of this manual is prohibited.

HEAD OFFICE

81 Koizumi, Ueda, Nagano 386-1192, Japan

TEL +81-268-28-0562 / FAX +81-268-28-0568

E-mail: [email protected]/

URL http://www.hioki.co.jp/

HIOKI USA CORPORATION

6 Corporate Drive, Cranbury, NJ 08512, USA

TEL +1-609-409-9109 / FAX +1-609-409-9108

3283A980-13 06-09H

Printed on recycled paper