3283 clamp on leak hitester_1 _ introduction inspection thank you for purchasing the hioki...

3283

CLAMP ON

LEAK HiTESTER

INSTRUCTION MANUAL

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i

ContentsIntroduction 1Inspection 1Safety Notes 2Notes on Use 5Chapter Summary 11Chapter 1 Product Outline 13 1.1 Product Outline 13 1.2 Features 13 1.3 Parts and Functions 16Chapter 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 35Chapter 3 Battery Replacement 39Chapter 4 Attaching the Hand Strap 41Chapter 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 46Chapter 6 Troubleshooting 51Chapter 7 Service 55

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Introduction

Inspection

Thank you for purchasing the HIOKI "3283CLAMP ON LEAK HiTESTER." To obtainmaximum performance from the product,please read this manual first, and keep ithandy for future reference.We have tried to bring this manual as closeto perfection as we could achieve. Ifperchance you find any unclear portions,mistakes, omissions, or the like, we would bemost obliged if you could please notify us ofthem via any HIOKI agent, or directly.

When you receive the product, inspect itcarefully to ensure that no damage occurredduring shipping. In particular, check theaccessories, panel switches, keys, andterminals. If damage is evident, or if it fails tooperate according to the specifications, contactyour dealer or HIOKI representative.Accessories9399 Carrying Case 1Hand Strap 1Battery: 6F22(006P) 1Instruction manual 1Options9094 OUTPUT CORD9445-02 AC ADAPTER

(SA10-0910N, SINO-AMERICAN)9445-03 AC ADAPTER (EU)

(SA10-0910G, SINO-AMERICAN)

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DANGERThis product is designed to conform to IEC61010 Safety Standards, and has beenthoroughly tested for safety prior to shipment.However, mishandling during use could resultin injury or death, as well as damage to theproduct. Be certain that you understand theinstructions and precautions in the manualbefore use. We disclaim any responsibility foraccidents or injuries not resulting directly fromproduct defects.

Safety Notes

This manual contains information and warningsessential for safe operation of the product andfor maintaining it in safe operating condition.Before using the product, be sure to carefullyread the following safety notes.

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The symbol printed on the productindicates that the user should refer to acorresponding topic in the manual (markedwith the symbol) before using therelevant function.In the manual, the symbol indicatesparticularly important information that theuser 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, helmetand etc.) when connecting and disconnectingfrom live electric circuits.

DANGERIndicates that incorrect operation presents anextreme hazard that could result in seriousinjury or death to the user.

WARNINGIndicates that incorrect operation presents asignificant hazard that could result in seriousinjury or death to the user.

CAUTIONIndicates that incorrect operation presents apossibility of injury to the user or damage tothe product.

NOTEAdvisory items related to performance orcorrect operation of the product.

Safety symbols

The following symbols in this manual indicatethe relative importance of cautions andwarnings.

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CAT I Secondary electrical circuits connected to an ACelectrical outlet through a transformer or similardevice.

CAT II Primary electrical circuits in equipment connected toan AC electrical outlet by a power cord (portable tools,household appliances, etc.)

CAT III Primary electrical circuits of heavy equipment (fixedinstallations) connected directly to the distributionpanel, and feeders from the distribution panel tooutlets.

CAT IV The circuit from the service drop to the serviceentrance, and to the power meter and primaryovercurrent protection device (distribution panel).

Measurement categories(Overvoltage categories)

This product complies with CAT III safetyrequirements.To ensure safe operation of measurementproduct, IEC 61010 establishes safetystandards for various electrical environments,categorized as CAT I to CAT IV, and calledmeasurement categories. These are defined asfollows.

Higher-numbered categories correspond toelectrical environments with greater momentaryenergy. So a measurement device designed forCAT III environments can endure greatermomentary energy than a device designed forCAT II.Using a measurement product in anenvironment designated with a higher-numberedcategory than that for which the product is ratedcould result in a severe accident, and must becarefully avoided.Never use a CAT I measuring product in CATII, III, or IV environments.The measurement categories comply with theOvervoltage Categories of the IEC60664Standards.

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DANGERBefore using the product the first time, verifythat it operates normally to ensure that the nodamage occurred during storage or shipping. Ifyou find any damage, contact your dealer orHioki representative.When conductors being measured carry inexcess of the safe voltage level (SELV-E) andnot more than 300 V, to prevent short circuitsand electric shock while the clamp sensor jawis open, make sure that conductors to bemeasured are insulated with materialconforming to (1) Overvoltage CategoryⅢ, (2)Pollution Degree 2, and (3) Basic InsulationRequirements for Working Voltages of 300 V.Refer to the following standards regarding themeanings of underlined terms.IEC61010-1IEC61010-2-031IEC61010-2-032

Notes on UseFollow these precautions to ensure safeoperation and to obtain the full benefits of thevarious functions.

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DANGERDo not use clamp testers on bare conductors.When the clamp sensor jaw is open, there is arisk of short-circuits and accidents that couldresult in injury or death.Use clamp testers only on power lines up to AC300 V rms, to avoid short-circuits and accidentsthat could result in injury or death.This product should only be connected to thesecondary side of a breaker, so the breaker canprevent an accident if a short circuit occurs.Connections should never be made to theprimary side of a breaker, because unrestrictedcurrent flow could cause a serious accident if ashort circuit occurs.Use only the specified Model 9445-02 (SA10-0910N, SINO-AMERICAN) or 9445-03 (for EU)(SA10-0910G, SINO-AMERICAN). AC adapterinput voltage range is 100 to 240 V AC (with10% stability) at 50/60 Hz. To avoid electricalhazards and damage to the product, do notapply voltage outside of this range.

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WARNINGTo avoid electric shock, do not allow theproduct to get wet, and do not use it when yourhands are wet.To avoid electric shock when measuring livelines, wear appropriate protective gear, such asinsulated rubber gloves, boots and a safetyhelmet.To avoid electric shock when measuring theground conductor on a transformer Class 2connection site, be careful not to approach highvoltage devices or conductors. Also, if close tohigh voltage charging devices or ifmeasurement is otherwise difficult, first changethe route of the grounding wire.To avoid electric shock when replacing thebatteries, first disconnect the clamp portionfrom the object to be measured. Also, beforeusing the product after replacing the batteries,replace the cover and screw.When replacing the batteries, be sure to insertthem with the correct polarity. Otherwise, poorperformance or damage from battery leakagecould result.To avoid the possibility of explosion, do notshort circuit, disassemble or incineratebatteries.Handle and dispose of batteries in accordancewith local regulations.

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CAUTION

This is a precision instrument: do not clamp anyforeign objects in the end of the clamp sensor, orinsert anything in the clamp sensor gap.To avoid damage to the product, protect it fromvibration or shock during transport and handling,and be especially careful to avoid dropping. Do notexert excessive pressure on the clamp sensor orattempt to wedge the sensor into a tight spot formeasurement.To avoid damage to the product, do not exceed themaximum input current rating, which depends onthe frequency of the current being measured (seefollowing Figure).

Frequency [Hz]Frequency-dependent deletion characteristics

Cur

rent

[A]

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CAUTION

Do not use the unit if the battery is exhausted(when the mark lights in the display area). Besure to replace the exhausted battery with a newone.When replacing the battery, make sure that themetal battery snap fitting is firmly connected. If themetal fitting is loose, adjust it and recheck theconnection. If it isn't connected securely, the powermay not be turned on, and a power may be turnedoff during the use.Adjustments and repairs should be made only bytechnically qualified personnel.For the inside memory protection, make sure thepower is turned off before connecting ordisconnecting the AC adapter.This product is designed for indoor use, andoperates reliably from 0 to 40 .Do not store or use the product where it could beexposed to direct sunlight, high temperature orhumidity, or condensation. Under such conditions,the product may be damaged and insulation maydeteriorate so that it no longer meets specifications.

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NOTE For circuits which carry several superimposedcurrents, correct measurements may not beobtained.Accurate measurement may be impossible inthe presence of strong magnetic fields, suchas near transformers and high-currentconductors, or in the presence of strongelectromagnetic fields such as near radiotransmitters.

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Chapter SummaryThis manual consists of the following chapters."Introduction", "Safety Notes", "Notes on Use"describe precautions on use, overview, andfeatures of this unit.Be sure to read them all. Next, check Chapter1 to 3 and the unit to confirm yourunderstanding of the function.

Chapter 1 Product OutlineExplains the parts and functions of the unit.

Chapter 2 Measurement ProcedureExplains how to use the 3283 for measurement.

Chapter 3 Battery ReplacementExplains how to replace the battery used topower the 3283.

Chapter 4 Attaching the Hand StrapExplains how to attach the hand strap, for easyhandling of the unit in the field.

Chapter 5 SpecificationsLists the specifications of the 3283 CLAMP ONLEAK HiTESTER.

Chapter 6 TroubleshootingDescribes points to check before requestingservice.

Chapter 7 ServiceExplains how to get the unit serviced.

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Chapter 1 Product Outline_____________________________________________

Chapter 1Product Outline

1.1 Product Outline

1.2 Features

The 3283 CLAMP ON LEAK HiTESTER isdesigned for wide-range measurement on livecircuits, from very small leak currents up to loadcurrents of 200 amperes. The clamp part ismade of material with high magneticpermeability, to minimize adverse effectscaused by external magnetic fields, and toreduce tolerances due to the position of themeasured conductor.

High-sensitivity range with 10 mA full-scale pointAllows accurate measurement even of minuteleak currents (resolution 10μA).Wide measurement rangeFive range settings from 10 mA to 200 A makethe 3283 suitable for many applications.Microprocessor-controlled functionsIn spite of the compact dimensions of the unit,versatile functions such as SLOW and MAX/MINare made possible by the built-inmicroprocessor.

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True rms indicationThe true rms conversion circuit delivers accurateresults not affected by leak current distortion.FilteringThe widespread use of switching power suppliesand equipment incorporating inverter technologyfrequently causes harmonics to besuperimposed in the leak current waveform. Thefilter in the 3283 allows two kinds ofmeasurement, for leak current caused byinsulation faults and for leak currents includingharmonics.Output jackThe output jack allows easy connection to alevel recorder or other equipment (levelrecorder output: DC, waveform output: AC).Unaffected by external magnetic fields andconductor positionThe clamp sensor and magnetic shield aremade of material with high magneticpermeability, allowing precise measurement alsoin the vicinity of transformers, electric motorsand other sources of magnetic fields. Since theinfluence of the conductor position on themeasurement result is negligible, residualcurrent characteristics are not a problem evenwhen using the unit as a zero-phasetransformer.Low power consumptionPower consumption is less than 100 mV A,allowing the unit to operate continuously for upto 40 hours on a single 6F22 (006P) battery.

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Dual power supply designThe unit can be powered using the optional9445-02 AC adapter (SA10-0910N, SINO-AMERICAN), 9445-03 AC adapter (for EU)(SA10-0910G, SINO-AMERICAN), or from abattery.

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Top and Side View1

2

3

4

56

7

8

1.3 Parts and Functions

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1. Clamp sensor2. Operation lever3. Key switches4. Display (LCD)5. Output jack6. AC adapter jack7. Rear cover8. Hand Strap

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ACAUTO Auto-rangeSLOW Update display once every 3 secondsREC Record functionMAX Maximum valueMIN Minimum valueAVE Average value = (maximum value +

minimum value/2)min 1 minute/segment (bar graph)hour 1 hour/segment (bar graph)HOLD Data hold functionAPS Auto power off functionMON Waveform output (AC) is activeREC Recording output (DC) is activeFILTER Filter function is activeHz FrequencyA, mA currentRMS True root mean square value

Input over (bar graph) Battery low warning

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Chapter 2 Measurement Procedure_____________________________________________

Fresh battery

Battery capacity 50%

Battery capacity 0Beep tone sounds 3 times

Chapter 2Measurement Procedure

2.1 Preparations1. 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 upbriefly. Then the model name is shown, and thebar graph indicates the battery condition for asecond.

3. The AC current measurement mode is activated

【 Battery low voltage power-off】After the mark lights and battery voltagedrops below a certain level, for the insidememory protection, the power goes offautomatically. When this occurs, bAtt and Loare displayed.When power goes off after display of thesemarks, replace the exhausted battery with anew one.

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single-phase 3-lead circuits

Transformer

bclamp all three leads

of the circuit

ba

Ig: leak Current

E (PE)

Loaddevice

Ig

2.2 Leak Current Measurement A1. Press the A key.2. Clamp the tester on the conductor, so that the

conductor passes through the center of theclamp sensor. For measurement of groundedleads, clamp the tester on one lead only (seea). For overall measurements, clamp the testeron the entire circuit path (see B).

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three-phase 3-leadcircuits b

clamp all three leads of the circuit

b

E (PE)

a

Ig

a

PE

Loaddevice

NOTE For measurement of single-phase 2-leadcircuits, clamp both leads of the circuit.For measurement of three-phase 4-leadcircuits, clamp all four leads of the circuit. Ifthis is not possible, the measurement can alsobe carried out on the ground lead of theequipment.

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NOTE Do not input current that exceeds themaximum continuous input of the electriccurrent range.Measurement may not be accurate in thecases 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 secondaryside of an inverter

Note that a value of several tens of amperesmay be displayed when opening or closing theclamp sensor, or when changing the electriccurrent range. This is not an error. It may takesome time for the display to return to zero.However, starting measurement before thedisplay returns to zero will not affectmeasurement.

3. The effective value (RMS) of the leak current isshown on the digital display. The selectedcurrent range is shown at the bottom of thedisplay.

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b b′

aIg

c c′

A

B

single-phase 3-leadcircuits

Loaddevice

Loaddevice

E (PE)

【Checking for insulation faults】Normally, for a E (PE) grounding installation ofa transformer, the measurement will first bemade to check for overall circuit leak current inthe ground lead (a). Current changes can beused to diagnose the leak current condition.When leak current has been detected, themeasurement should proceed from the powersource towards the load, using overallmeasurement.

1. If an insulation fault in the wiring has occurredat position A in the illustration, leak current willbe detected at position b using overallmeasurement, but not at position b'.

2. If an insulation fault in the load equipment hasoccurred at position B in the illustration, leakcurrent will be detected at position c usingoverall measurement, but not at position c'.

3. For detection of intermittent leak currentconditions (such as only when a certain piece ofequipment is operating), the use of a levelrecorder will be helpful.

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SLOW→Hz→RMS

NOTE The update speed cannot be changed forfrequency display.

RMS value display→Current range display

NOTE The flashing segment indicates the full-scaleposition.

【Range switching】Each push of the RANGE key switches therange 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 rapidlyand is hard to read, you can select a slowerupdate rate (once every 3 seconds) by pressingthe SLOW/Hz key.The key cycles through the following modes:

【Bar graph display BAR GRAPH】

The current range display can be switched tobar graph operation. The bar graph shows therms value of the measured current.The bar graph display refresh rate is "FAST" (4times 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 togglesbetween the following modes:

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NOTE There is no frequency output function.Enable the filter function (see 2.3) whenconducting 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 thesecondary side of an inverter

The 3283 may not be able to performmeasurement 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 enabledThe range display (AUTO and Bar graph)indicates the electric current range.

SLOW→Hz→RMS

【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 than30Hz, "----" is shown.Each push of the SLOW/Hz key cyclesthrough the following modes:

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X

NOTE The frequency of special waveforms such asat the secondary side of an inverter may notbe indicated correctly.Depending on the magnitude and frequency ofthe input current, resonances may be heardfrom the clamp jaw. This does not affect themeasurement.When the size of input current is unknown,begin measurement with the 200 A range (filterfunction is invalid) selected .Do not input a current which exceeds themaximum continuous input rating of the currentrange.

【Load current measurement】Be sure to clamp only one lead of theconductor.

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output rate：1 V/10 mAAmpli

tude [

dB, 0

dB=1

V]

Frequency [Hz]MON output frequency bandwidth (example: 10 mA range)

NOTE The effect of the filter function is reflected innumeric data output and waveform output.

2.3 Filter Function FILTERThe widespread use of switching power suppliesand equipment incorporating inverter technologycan cause harmonics to be superimposed onthe leak current waveform.

1. Press the FILTER key. The FILTER indicationappears. The integrated low-pass filter is nowactive, cutting off unwanted higher-frequencycomponents.

2. Pressing the FILTER key once more turns thelow- pass filter off, allowing measurement ofleak current including any high-frequencycomponents. The FILTER indication disappears.

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NOTE Pressing the MAX/MIN key during auto-ranging (AUTO) fixes the range at the currentsetting.

2.4 Data Hold Function HOLD

2.5 Recording Function REC

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

1. Press the HOLD key. The HOLD indicationappears on the display and the digital displayvalue is maintained.To cancel the data hold function, press theHOLD key again.

The recording function can be used to displaythe maximum display value, minimum displayvalue, maximum/minimum average, and theinstantaneous value.

1. Press the RANGE key to select the currentmeasurement range.

2. Press the MAX/MIN key while measuringcurrent with the conductor clamped. The RECindication flashes and the maximum, minimum,or average value for the period starting whenthe key was pressed to the present point can bedisplayed. The instantaneous value can also bedisplayed. Only one of these values can beshown at any one time, but the other values arekept in memory.

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MAX→MIN→AVE→instantaneous value(no indication)

3. During measurement, the MAX/MIN key canbe used to select the value that should beshown.

MAX: Maximum value is shown.MIN: Minimum value is shown.AVE: Average value is shown = (maximumvalue + minimum value)/2If none of the MAX, MIN, or AVE indicators isshown, the display shows the instantaneousvalue.

4. Pressing the HOLD key will stop the recordingfunction. The HOLD indication appears and theREC indication stops flashing.By pressing the MAX/MIN key in thiscondition, the MAX, MIN, and AVE valuesstored in the internal memory can be called upon the display, as follows.

While HOLD is shown, the elapsed time is notincremented. Also if the clamp sensor isremoved from the conductor for easier reading,the minimum value will not return to zero.Pressing the HOLD key once more causes theHOLD indication to go out. The recordingfunction resumes, and REC flashes again.

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NOTE Momentary power loss and power surgescannot be detected.When the unit is turned off, accumulated dataare lost.The maximum recording duration depends onthe remaining battery capacity.The lowest possible frequency that can bedisplayed is 30.0 Hz.If the measurement object was clamped afteractivating the recording function, the minimumvalue is always zero. To prevent this, clampthe conductor first and the press theMAX/MIN key to activate the recording

function.If the clamp sensor is removed from themeasurement object while the recordingfunction is active, the minimum value willbecome zero. To prevent this, press theHOLD key before removing the clamp

sensor.To turn off the recording function, pressA key. The maximum value, minimum value,

and average value are cleared.

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rms value → elapsed time → elapsed time → current range(instantaneous value) (hours) (minutes)

【Bar graph indication BAR GRAPH】The bar graph display can be changed. It isalso 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 cyclesthrough the following modes:

When the elapsed time display is activated, thebar graph segments flash and the elapsed timefrom the point when the MAX/MIN key waspressed is displayed.When "min" is shown in the right-hand cornerof the bar graph, each segment of the bar graphcorresponds to one minute. Every time oneminute elapses, one segment of the flashingbar graph goes on. When all segments on thebar graph go on, the elapsed time is 30minutes.When the elapsed time exceeds 30 minutes,one segment of the flashing bar graph goes offevery time one minute elapses.

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When the segments left of a flashing segmentremain on: the number of "on" segmentsrepresents the elapsed time (0 to 29).The illustration below shows when 20 minuteshave elapsed:

When the segments right of a flashing segmentremain on: the number of "off" segments (+30)represents the elapsed time (30 to 59).The illustration below shows when 50 minuteshave elapsed:

When "hour" is selected, one segmentcorresponds to one hour, and the maximumlength of time that can be displayed is 59 hours.

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

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2.6 Auto Power-Off Function APS

2.7 Battery Low Warning

2.8 Beep Tone

When APS is displayed, the auto power-offfunction is active.If no key is pressed for about 10 minutes, theunit turns itself off automatically.Immediately before turning off, the APSindication flashes and a beep tone is heard forabout 30 seconds.Pressing any key except the POWER key willextend the powered state for another 10minutes.To disable the auto power-off function, holddown the HOLD key while turning the unit onby pressing the POWER key. The APSindication then is not shown.While using the recording function or the outputfunction of the unit, auto power-off is disabled.

When this indication appears, the battery isexhausted and correct measurement is notassured. Replace the battery as early aspossible.Refer to "Chapter 2【Battery low voltage power-off】".

To disable the beep tone, hold down theRANGE key while turning the unit on by

pressing the POWER key.

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

NOTE Circuit time constant 200 ms MAX.

2.9 Fast ModeThe display update rate can be set to 4 timesper second. This is useful for example tomeasure load currents with frequent variationsand similar applications.

1. Press the A key twice in succession.The indication "F" is briefly shown, and the unitswitches to fast mode. From now on, theindication "F" will appear every time the A keyis pressed.To cancel the fast mode, pressthe A key twice in succession.

【 Example to measure load currents withfrequent variations】

1. Press the A key twice in succession toactivate fast mode.

2. Press the RANGE key to set the current rangeto a fixed setting.When the drive current is unknown, beginmeasurement with the 200 A range selected

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

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REC (recording output) → MON(waveform output) → out(auto power-off disabled) (auto power-off disabled) (auto power-off enabled)

2.10 Output Function OUTPUTThe output type is indicated by the REC(recording output, DC) or MON (waveformoutput, AC) indication.An output signal corresponding to the measuredvalue can be obtained from the unit. The outputvoltage (AC/DC) normally is 1 V for the full-scale count (1000). In the 200 A range, theoutput voltage (AC/DC) is 2 V for the full-scalecount (2000).

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

2. Press the OUTPUT key so that the RECindication appears. The output function is nowactive.Auto power-off is disabled. (The APS indicationgoes out.)Each push of the OUTPUT key cycles throughthe following modes:

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【Output rate】MON (waveform output : AC)REC (recording output : DC)

CurrentRange Output rate Accuracy Crest

Factor10 mA AC/DC 1 V/10 mA

AC/DC:3.0%rdg. 10 mV

(40Hz to 2 kHz)

2.5 or less100 mA AC/DC 1 V/100 mA

1 A AC/DC 1 V/1 A10 A AC/DC 1 V/10 A

200 A AC/DC 2 V/200 A 1.5or less

【Output response】

REC MON(Circuit time constant)

200 ms or lessfrequency bandwidth

(-3 dB) 5 Hz to 15 kHz

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NOTE To use the output function, be sure to push theOUTPUT key so that either REC or MON is

shown.There is no frequency output function.The filter function can be used to cut unwantedhigh- frequency components.If the OUTPUT key is pressed while auto-range (AUTO) is enabled, the range is fixed atthe current setting (AUTO indication goes out).For connection to a level recorder, use theseparately available 9094 OUTPUT CORD.Use a high-impedance input device (e.g.,recorder) for receiving output. (We recommenda device with input impedance of at least 100kΩ.)

NOTE Even if the AC adapter is connected, if thebattery is exhausted (the mark lights), thepower may turn off in order to preserve thedata in the internal memory. To continue usingthe instrument, replace the depleted batterywith a new battery, or remove the batterycompletely.When the AC adapter is used and there is ahigh amount of noise in the power line, thedisplay may show several counts or noise maybe present in the output. In such a case,connect the ground terminal of the levelrecorder or the L side of the input to ground.Pressing the HOLD key does not hold theoutput signal.Please note that the output signal is availablealso when REC and MON indications are out,but the auto power-off function is enabled.

【Using AC Adapter】For long-term recordings, use the AC adapter (option).

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Chapter 3 Battery Replacement_____________________________________________

CAUTION

Do not fix the back casing screws too tightly.The torque about 0.5N･m is recommended.

NOTE Fix the terminals of battery snap and batteryexactly.

Chapter 3Battery Replacement

1. Remove the two fastening screws of the rearcover, 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.

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Chapter 3 Battery Replacement_____________________________________________

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Chapter 4 Attaching the Hand Strap_____________________________________________

Chapter 4Attaching

the Hand Strap

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

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Chapter 4 Attaching the Hand Strap_____________________________________________

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Chapter 5 Specifications_____________________________________________

Chapter 5Specifications

5.1 Measurement SpecificationsTemperature and humidity for guaranteedaccuracy: 23 5 (73 9), 80% RH orlessGuaranteed accuracy period:1 year, oropening and closing of the Clamp Sensor10,000 times, whichever comes first

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Current Range(Accuracy

Range)Resolution

Accuracy(NOTE)

(%rdg.+dgt.)

Maximumpermittedcurrent

10 mA(1.00 to 10.00 mA) 0.01 mA

45 to 66 Hz:(1.0%+5)

40 to 4566 to 2 kHz:

(2.0%+5)

20 ArmsAC,continuous(see fig. A)

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

200 A(10.0 to 200.0 A) 0.1 A

45 to 66 Hz:(1.5%+5)

40 to 4566 to 2 kHz:

(2.0%+5)

200 ArmsAC,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)

5.1.1 AC current Arms(true rms indication)

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Effect of conductorposition

within 0.1%(in any direction from clamp sensorcenter)100 A MAX: within 0.5%

Effect of externalmagnetic fields

AC 400 A/m corresponds to 5 mA,max. 7.5 mA

Maximum ratedvoltage to earth

max. 300 V rms AC (insulatedconductor)

Frequency [Hz]

Cur

rent

[A]

Fig.A Frequency-dependent deletion characteristics

Frequency Range(Accuracy Range) Resolution Accuracy

(%rdg.+dgt.)100 Hz(30.0 to 99.9 Hz) 0.1 Hz (0.3%+1)

1000 Hz(95 to 1000 Hz) 1 Hz (1.0%+1)

NOTE The frequency range is automatically specified.

5.1.2 Frequency Hz

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Functions

Recording Maximum (MAX), minimum (MIN),average (AVE) value displayselectable for AC current andfrequency measurement

Data hold Data hold function

Auto power-off Automatic shutdown after 10.5 1minutes. Beep tone warning.Extension and disabling possible.

Battery low voltagepower-off

When the battery voltage falls belowa certain level, the function shutsdown the unit to preventmalfunctions.

Beep tone ON/OFF

Display LCD panel

Digital indication 2000 counts

Bar graph indication 35 segmentsCurrent range display or rms displayselectable

Over-rangeindication

"O.L." (bar graph)Over range warning sound (buzzer)

Battery low warning

Battery low voltagepower-off

"bAtt Lo"(7 segments used)Power turned offafter display

5.2 General Specifications

47__________________________________________________


Data hold indication HOLD

Auto power-offindication

APS

Filter function Cutoff frequency 180 Hz 30 Hz(-3 dB)

Display update rate Digital indicationNORMAL: 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 indicationFAST only

Display responsetime

2.2 s max.

Range switching Auto range, manual (fixed) range(selectable). Frequencymeasurement with auto-range only.

Output function REC (recording output),MON (waveform output) (selectable)

Output rate REC : 1 V DC at full-scale point(In the 200 A range only, 2V DC/f.s.)

MON : 1 V AC at full-scale point(In the 200 A range only, 2V AC/f.s.)

Output Accuracy 3.0%rdg. 10 mV (40 to 2 kHz)

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

MON (AC) : frequency bandwidth(-3 dB) 5 Hz to 15 kHz

Output impedance 200Ω max.

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Circuit dynamiccharacteristics(crest factor)

2.5 max. (1.5 for 200 A range)

Withstand voltage Chassis - clamp core: 3536 Vrms ACfor 15 seconds

Insulationresistance

Clamp core - circuitry: 630 kilohmsmin.

Location for use Indoor, altitude up to 2000 m

Applicablestandards

Safety: EN 61010-1:2001Voltage input: Pollution level2, Measurement categoriesⅢ (expected transientovervoltage: 4000 V)EN 61010-2-032:2002Type B current sensorEN 60529:1991 IP40(protected against access tohazardous parts with a wire)

EMC: EN 61326:1997+A1:1998+A2:2001+A3:2003EN 61000-3-2:2000EN 61000-3-3:1995+A1:2001

Maximumconductor diameterfor measurement

φ40 mm max.

Operatingtemperature andhumidity range

0 to 40 , 80%RH or less(no condensation)

Temperaturecharacteristics

In 0 to 40 range: 0.05 x accuracyspecifications/

Storagetemperaturerange

-10 to 50 (no condensation)

49__________________________________________________


Power source One 6F22 (006P) 9 V battery or9445-02 AC ADAPTER(SA10-0910N, SINO-AMERICAN) or

9445-03 AC ADAPTER (EU) (SA10-0910G, SINO-AMERICAN) (option)

Maximum powerconsumption

100 mVA

Battery life approx. 40 hours(continuous, no load)

Externaldimensions

approx. 62W x 225H x 39D mm

Mass approx. 400 g

Accessories 9399 CARRYING CASE 1Hand Strap 1 Battery: 6F22(006P) 1 Instruction manual 1

Options 9445-02 AC ADAPTER(SA10-0910N, SINO-AMERICAN)9445-03 AC ADAPTER (EU)(SA10-0910G, SINO-AMERICAN)9094 OUTPUT CORD

50__________________________________________________


51__________________________________________________

Chapter 6 Troubleshooting_____________________________________________

Problem Cause ActionProblems related to the power supplyPower will notturn onPower shutsoff duringoperation

The battery maybe low ordepleted

Replace it with anew battery

The battery snapterminal may bedeformed,causing contactfailure

Remove thebattery, then useradio pliers tostraighten thebattery snapterminal

When the ACadapter is used,power is onlysupplied throughthe AC adapter

When using thebattery,disconnect theAC adapter.Insert the ACadapter into theAC outlet

lightslights,

followed byimmediatepowershutdown

The battery maybe low ordepleted

Replace it with anew battery

Chapter 6Troubleshooting

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

52__________________________________________________


Problem Cause ActionProblems related to displayAn errorbetween E.001and E.005 orE.100 isdisplayed.

Internal memorymay bedamaged

Request repair

Problems related to the clamp sensorThe clampsensorgenerates asound duringmeasurement

When largecurrent or high-frequencycurrent ismeasured,resonance mayoccur,generating asound

Reclamp theconductor.Measure micro-current or low-frequencycurrent todeterminewhether a soundis generated

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Problem Cause ActionProblems related to output functionThe outputrate differsfrom thespecificationThe output istoo low

The 200 A rangeis used

Check theelectric currentrange. Unlikeother ranges, thefull scale of the200 A range is 2V/fs

The inputimpedance ofthe device usedto receive outputis too low

Check the inputimpedance ofthe device usedto receiveoutput. Werecommendinput impedanceof at least 100kΩ

MON output isused formeasurement athigh frequency

The guaranteedrange ofaccuracy is 40Hz to 2 kHz. Thespecifiedfrequency bandof 5 Hz to 15 Hzis a -3 dB band.At 15 kHz, theamplitude isreduced toapproximately70%

54__________________________________________________


55__________________________________________________

Chapter 7 Service_____________________________________________

Chapter 7Service

To clean the product, wipe it gently with a softcloth 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 replacementparts is five years after end of production.For information regarding service, pleasecontact your dealer or the nearest HIOKIrepresentative.If the unit is not functioning properly, checkthe battery. If a problem is found, contactyour dealer or HIOKI representative. Packthe unit carefully so that it will not bedamaged during transport, and write adetailed description of the problem. HIOKIcannot bear any responsibility for damagethat occurs during shipment.

56__________________________________________________

Chapter 7 Service_____________________________________________

HIOKI 3283 CLAMP ON LEAK HiTESTERInstruction 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 Japan 3283A981-08･ All reasonable care has been taken in the production of

this manual, but if you find any points which areunclear or in error, please contact your supplier or theInternational Sales and Marketing Department at HIOKIheadquarters.

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

･ Unauthorized reproduction or copying of this manual isprohibited.

HEAD OFFICE81 Koizumi, Ueda, Nagano 386-1192, JapanTEL +81-268-28-0562 / FAX +81-268-28-0568E-mail: [email protected]/URL http://www.hioki.co.jp/

HIOKI USA CORPORATION6 Corporate Drive, Cranbury, NJ 08512, USATEL +1-609-409-9109 / FAX +1-609-409-9108

3283A980-13 06-09H

Printed on recycled paper

http://tequipment.net

3283 clamp on leak hitester_____1 _____ introduction inspection thank you for purchasing the hioki...

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3283 clamp on leak hitester_1 _ introduction inspection thank you for purchasing the hioki...