KYORITSU KEW 6310 Instruction Manual

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INSTRUCTION MANUAL

POWER QUALITY ANALYZER

KEW 6310

KYORITSU ELECTRICAL INSTRUMENTS WORKS, LTD.

TOKYO, JAPA N

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Contents KEW6310

1 KEW6310

Contents ········································································································································1 Unpacki ng·······································································································································5 Safety warning s······························································································································7

Section 1 Instrumen t Overvi ew···································································································· 1.1

1.1 Functional Overview······························································································· 1.1

1.2 Features·················································································································· 1.3

1.3 Connection Diagram······························································································ 1.5

1.4 Measuring Procedure····························································································· 1.6

1.5 Outline of max demand me asure ment con cept··················································· 1.7

Section 2 Instrumen t Layout········································································································· 2.1

2.1 Front View··············································································································· 2.1

2.2 Connector················································································································ 2.3

2.3 Side Face················································································································2.4

2.4 Battery Case··········································································································· 2.5

2.5 Marks di splay ed on the LCD··················································································2.6

Section 3 Getting st arted···············································································································3.1

3.1 Preparation·············································································································· 3.1

3.1.1 Putting Input terminal plate on the Input terminal··································································3.1

3.1.2 Attaching Markers to Voltage test lead s and Clamp sensors··············································

3.2

3.2 Power Supply·········································································································· 3.3

3.2.1 Battery········································································································································3.3

3.2.2 AC Power Supply·········································································································· ···········

3.9

3.3 V oltage test leads and Clamp sensor connection···············································3.10

3.4 Start KEW6310······································································································3.11

3.4.1 S t art-up Scree n··························································································3.11

3.4.2 Err or mess age··························································································3.13

Section 4 Setting···························································································································4.1

4.1 List of Setting ite ms································································································· 4.1

4.2 Settings··················································································································· ·4.3

4.2.1 Basic Setting······························································································································4.3

4.2.2 Measurement Setting············································································································

4.21

4.2.3 Save Setting···························································································································4.59

4.2.4 Other Setting··························································································································

4.75

Section 5 Wiring C onfigu rations···································································································5.1

5.1 Important preliminary c hecks··················································································5.1

5.2 Basic Wiring Confi gurat ion····················································································· 5.2

5.3 Wiring check············································································································5.7

5.3.1 Checking procedure·················································································································5.7

5.3.2 Criteria of Judgment·················································································································

5.8

5.4 Using supplementary VT/CT’s···············································································5.9

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Section 6 Instantaneous value measurement············································································· 6.1

6.1 Indications on LCD·································································································· 6.1

6.1.1 Display screen..........................................................................................................................6.1

6.1.2 Switching displays....................................................................................................................

6.8

6.1.3 Zoom..........................................................................................................................................

6.9

6.2 Measuring Procedure ····························································································6.1 1

6.3 Data saving············································································································6.12

6.3.1 Saving Inst measurement dat a····························································································6.12

6.3.2 Limitations of saving··············································································································

6.14

6.3.3 Saved data·····························································································································

6.15

6.4 Ranges and Over-range indications····································································6.18

6.4.1 Ranges···································································································································6.18

6.4.2 Over-range / Bar indication···································································································

6.21

Section 7 Integra tion me asureme nt·····························································································7.1

7.1 Indications on LCD··································································································7.1

7.1.1 Display screen··························································································································7.1

7.1.2 Switching displays····················································································································

7.2

7.1.3 W Range display······················································································································

7.3

7.2 Measuring Procedure······························································································ 7.4

7.3 Data saving··············································································································7.5

7.3.1 Saving Integration measurement dat a···················································································7.5

7.3.2 Limitations of saving·················································································································

7.7

7.3.3 Saved data································································································································

7.7

7.4 Ranges and Over-range indications ······································································ 7.9

7.4.1 Ranges······································································································································7.9

7.4.2 Over-range / Bar indication······································································································

7.9

Section 8 Demand m easure ment································································································8.1

8.1 Indications on LCD·································································································· 8.1

8.1.1 Display screen··························································································································8.1

8.1.2 Switching displays····················································································································

8.5

8.1.3 W Range / Wh Range display ································································································

8.5

8.2 Measuring Procedure ·····························································································8.6

8.3 Data saving··············································································································8.7

8.3.1 Saving Demand measurement data······················································································8.8

8.3.2 Limitations of saving··············································································································

8.10

8.3.3 Saved data·····························································································································

8.10

8.4 Ranges and Over-range indications····································································8.12

8.4.1 Ranges···································································································································8.12

8.4.2 Over-range / Bar indication···································································································

8.12

Section 9 W AVE Range················································································································9.1

9.1 Indications on LCD·································································································· 9.1

9.1.1 Display screen··························································································································9.1

9.1.2 Switching displays····················································································································

9.3

9.1.3 Zooming/ downsizing ·············································································································

9.5

9.2 Measuring Procedure ····························································································· 9.6

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9.3 Data saving·············································································································· 9.7

9.3.1 Saving Procedure·····················································································································9.7

9.3.2 Limitations of saving·················································································································

9.9

9.3.3 Saved data································································································································

9.9

9.4 Ranges and Over-range indications····································································9.12

9.4.1 Ranges···································································································································9.12

9.4.2 Over-range / Bar indication···································································································

9.12

Section 10 Harmoni c Analy sis···································································································· 10.1

10.1 Indications on LCD····························································································· 10.1

10.1.1 Display screen·······················································································································10.1

10.1.2 Switching displays·················································································································

10.4

10.1.3 Logarithm display··················································································································

10.5

10.2 Measuring Procedure·························································································10.6

10.3 Data saving·········································································································10.7

10.3.1 Saving Procedure··················································································································10.7

10.3.2 Limitations of saving··············································································································

10.9

10.3.3 Saved data·····························································································································

10.9

Section 1 1 Power Qua lity·············································································································1 1 .1

11.1 Display screen·····································································································1 1.2

11.2 Swell / Dip / Int me asurem ent·············································································1 1.3

11.2.1 Display screen··················································································································11.3

11.2.2 Measuring Procedure······································································································

11.4

11.2.3 Data saving·······················································································································

11.7

11.2.4 Limitations of saving·········································································································

11.9

11.2.5 Saved data························································································································

11.9

11.3 Transient measurement····················································································11.11

11.3.1 Display screen················································································································11.11

11.3.2 Measuring Procedure····································································································

11.12

11.3.3 Data saving·····················································································································

11.14

11.3.4 Limitations of saving·······································································································

11.16

11.3.5 Saved data·····················································································································

11.16

11.4 Inrush current measurement············································································11 .19

11.4.1 Display screen················································································································11.19

11.4.2 Measuring Procedure····································································································

11.20

11.4.3 Data saving·····················································································································

11.22

11.4.4 Limitations of saving·······································································································

11.24

11.4.5 Saved data·····················································································································

11.24

11.5 Unbalance rate measurement·········································································11.2 7

11.5.1 Display screen······················································································· 1 1.27

11.5.2 Measuring Procedure···································································································

11.28

11.5.3 Data saving····················································································································

11.29

11.5.4 Limitations of saving······································································································11.31

11.5.5 Saved data·····················································································································

11.31

Page 5

KEW6310 Contents

KEW6310 4

11.6 Flicker······················································································································1 1.33

11.6.1 Display screen·····················································································································11.33

11.6.2 Measuring Procedure·········································································································

11.37

11.6.3 Data saving··························································································································

11.38

11.6.4 Limitations of saving············································································································

11.40

11.6.5 Saved data···························································································································

11.40

11.7 Capacitance Calculation- Sizing of capacitor banks for Power factor correction

(PFC) ·································································································································1 1.43

11.7.1 Display screen·····················································································································11.43

11.7.2 Measuring Procedure·········································································································

11.45

11.7.3 Data saving··························································································································

11.46

11.7.4 Limitations of saving············································································································

11.48

11.7.5 Saved data···························································································································

11.48

Section 12 CF card/ Internal memory····························································································· 12.1

12.1 Instrument and CF card / Internal memory·························································· 12.1

12.2 Placing / removing the CF card············································································· 12.4

12.3 CF card and Internal memory················································································ 12.6

12.4 Backup memory······································································································12.9

Section 13 Communication function/ Interface software······························································ 13.1

13.1 Software Installation (KEW PQA MA STER)························································ 13.2

13.2 USB driver installation····························································································· 13.4

13.3 Starting “KEW PQA MASTER”·············································································· 13.6

13.4 USB driver un-installation······················································································· 13.7

Section 14 Other functions··············································································································· 14.1

14.1 Input/ Output terminals···························································································· 14.1

14.2 Getting power from measured lines······································································ 14.2

14.3 Auto-ranging············································································································ 14.4

14.4 Operation at AC power interruption·······································································14.4

Section 15 Troubleshooting·············································································································15.1

15.1 General troubleshooting························································································· 15.1

15.2 Error messages and actions··················································································15.2

Section 16 Specification··················································································································· 16.1

16.1 General specification······························································································ 16.1

16.2 Inst measurement··································································································· 16.2

16.3 Integration measurement······················································································· 16.4

16.4 Demand measurement·························································································· 16.6

16.5 Waveform measurement ······················································································· 16.6

16.6 Harmonic measurement························································································ 16.6

16.7 Power quality··········································································································· 16.7

16.7.1 Swell/ Dip/ Int measurement································································································16.7

16.7.2 Transient measurement········································································································

16.7

16.7.3 Inrush current measurement································································································

16.7

16.7.4 Unbalance rate measurement·····························································································

16.7

16.7.5 Capacitance calculation········································································································

16.8

16.8 Other specifications································································································· 16.8

16.9 Specification of Clamp sensor ·············································································16.11

Page 6

Unpacking Procedure KEW6310

5 KEW6310

● Unpacking Procedure

We thank you for purchasing the

Power Quality Analyzer “KEW6310”. Please check the contents and

instrument before use.

● Items listed below are included with the standard set:

Main unit

KEW6310 : 1 unit

Voltage test lead

MODEL7141 : 1 set (red, black, green, blue: 1pce for each)

Power cord

MODEL7170 : 1 pce

USB cord

MODEL7148 : 1 pce

Quick manual

1 pce

CD-ROM

1 pce

Battery

Alkaline size AA battery LR6: 6pcs

8 Compact flash card 1 pce 9 Carrying case MODEL9125 : 1 pce

10 Input terminal plate 1 pce 11 Cable marker

8-color x 4pcs each (red, blue, yellow, green, brown, gray, black, white)

12 Card Reader MODEL8319

Optional parts

Clamp sensor

Depending on model pu rchased

Instruction manual for clamp sensor

1 pce

15 Compact fl ash card 64M/ 128M/ 256M/ 1GB 16

Carrying case for Main unit (with magnet)

MODEL9132

17 Power supply a dap ter MODEL8312

1. Main unit 2. Voltage test lead 3. Power cord 5. Quick manual 6. CD-ROM

4. USB cord

7. Battery 8. Compact flash card 9. Carrying case 11. Cable marker

10. Input terminal plate 12. Card Reader : M-8319

Page 7

KEW6310 Unpacking Procedure

KEW6310 6

13. Clamp sensor 14. Instruction manual for clamp sensor

(depending on model purcha sed )

50A T ype(φ24mm) M-8128

15. Compact flash card

100A T y pe(φ24mm) M-8127

32MB M-8305

200A T y pe(φ40mm) M-8126

64MB M-8306

500A T y pe(φ40mm) M-8125

128MB M-8307

1000A T y pe(φ68mm) M-8124

256MB M-8322

3000A T y pe(φ150mm) M-8129

1GB M-8323 10A T ype(φ24mm) M-8146 10A T ype(φ40mm) M-8147 10A T ype(φ68mm) M-8148

1A T y pe(φ24mm) M-8141 1A T y pe(φ40mm) M-8142 1A T y pe(φ68mm) M-8143

● Storage

Store the items as shown below after use. 16. Carrying case for Main unit 17. Power supply adap ter (with magnet)

● In case any of the items listed above are found to be damaged or missing or if the printing is unclear, please contact your local KYORITSU distributor from where the instrument was purchased.

Page 8

Safety warnings KEW6310

7 KEW6310

● Safety warnings

This instrument has been designed, manufactured and tested according to IEC 61010: Safety requirements for Electronic Measuring apparatus, and delivered in the best condition after passing quality control tests.

This instruction manual contains warnings and safety rules which hav e to be observ ed by the user to ensure safe operation of the instrument and to mainta in it in safe condition. The refore , read through these operating instructions before using the instrument.

WARNING

● Read through and understand the instructions contained in this manual before using the instrument.

● Keep the manual at hand to ena ble qu ick re ference w hene ve r nece ssary.

● The instrument is to be used only in its intended applications.

● Understand and follow all the safety instructions contained in the manual.

● Read the enclosed Quick manual af te r readi ng th i s instru ction ma nual .

● As to the Clamp sensor use, refer to the instruction manual supplied with the sensor.

It is essential that the above instructions are adhered to. Failure to follow the above instructions may cause injury, instrument damage and/or damage to equipment under test.

The symbol indicated on the instrument, means that the user must refer to the related parts in the manual for safe operation of the instrument. It is essential to read the instructions wherever the symbol appears in the manual.

DANGER

is reserved for conditions and actions that are likely to cause serious or fatal injury.

WARNIN G

is reserved for conditions and actions that can cause serious or fatal injury.

CAUTION

is reserved for conditions and actions that can cause injury or instrument damage.

This instrument meets CAT. III 600V. To ensure safe operation of measuring instruments, IEC 61010 establishes safety standards for various electrical environments, categorized as CAT.I to CAT.IV, and called measurement categories. Higher-numbered ca tegorie s co rrespon d to ele ctri cal en viro nme nts w ith grea ter momen tary en ergy , so a measuring instrument designed for CAT.III environments can endure greater momentary energy than one designed for CAT.II. CAT.I: Secondary electrical circuits connected to an AC electrical outlet through a transformer or similar device. CAT.II: Primary electrical circuits of equipment connected to an AC electrical outlet by a power cord. CAT.III: Primary electrical circuits of the equipment 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).

Page 9

KEW6310 Safety warnings

KEW6310 8

DANGER

● V eri fy prop er ope ratio n on a know n sour ce befo re use.

● Verify proper operation on a known source before use or taking action as a result of the indication of the

instrument.

● Never make measurement on a circuit in w hich the electrical potential exceeds AC600V.

● Do not attempt to make measurement in the presence of flammable gasses. Otherwise, the use of the

instrument may cause sparking, which can lead to an explosion.

● Never attempt to use the instrument if its surface or your hand are wet.

- Measurement -

● Do not exceed the maximum allowable input of any measuring range.

● Never open the Battery cover and CF card connector cover during a measurement.

- Battery -

● Never open the Battery Cover during a measurement.

● Brand and type of the batteries to be used should be harmonized.

- Power cord -

● Connect the Power cord mains plug to a mains socket outlet

● Use only the Power cord supplied with this instrument.

- Power supply connector -

● Never touch the Pow er suppl y conne ctor alt hou gh i t is in su la ted while the instrument is operating with batteries.

- Volt age test le ads -

● Use only the ones supplied with this instrument.

● Confirm that the measured voltage rating of the test lead is not exceeded.

● Do not connect a Voltage test lead unless required for measuring the parameters desired.

● Connect Voltage test leads to the instrument first, and only then connect them to the circuit under

test.

● Never disconnect Voltage test leads while the instrument is in use.

● Connect to the downstream side of a circuit breaker since a current capacity at the upstream side is large.

● Do not touch two lines under test with the metal tips of the test leads.

● Never touch the metal tips of the test leads.

- Clamp sensor -

● Use only the ones dedicated for this instrument.

● Confirm that the measured voltage rating of the test lead is not exceeded.

● Do not connect a Camp sensor unless required for measuring the parameters desired.

● Connect sensors to the instrument first, and only then connect them to the circuit under test.

● Never disconnect sensors while the instrument is in use.

● Connect to the downstream side of a circuit breaker since a current capacity at the upstream side is large.

● Do not touch two lines under test with the metal tips of the test leads.

Page 10

Safety warnings KEW6310

9 KEW6310

WARNING

- Connection -

● Confirm that the instrument is off, and then connect the Power cord.

● Connect the Voltage test leads and clamp sensors to the instrument first. Cord to be firmly inserted.

● Never attempt to make any measurement if any abnormal conditions, such as a broken cover or

exposed metal parts are present on the Instrument, Voltage test leads, Power cord and Clamp sensor.

- Measurement –

● Ensure that the Current input terminal cover, USB connector cover and CF ca rd con ne cto r co ve r a re

closed when not in use during a measur ement.

- Not in use for a long period -

● Remove the Pow er cord fro m the ou tle t i f the instru me nt w ill no t be in us e fo r a lo ng pe ri od.

- Repair -

● Do not install substitute parts or make any modification to the instrument. Return the instrument to your local KYORITSU distributor for repair or re-calibration in case of suspected faulty operation.

- Battery -

● Do not try to replace the batteries if the surface of the instrument is wet.

● Ensure that the Power cord, Voltage test leads and Clamp sensor are removed from the instrument,

and that the instrument is switched off w hen open ing the Ba ttery cover for battery replacement.

● Do not use dry-cell batteries with the Selector Switch set to “RECHARGEABLE BA TTER Y” position. It may cause electrical shock accident.

● Never mix new and old batteries.

● Install batteries in correct polarity as marked inside .

- Power cord -

● Do not use the damaged cord.

● Don’t put heavy things on , step on or pin ch the co rd , mo reove r, not to touch any heating material.

● When unplugging the cord from the mains socket outlet, do so by removing the plug first and not by

pulling the Pow er cord.

- Measures against abnormal symptoms -

● If the instrument begins to emit smoke, becomes too hot, or gives off an unusual smell, immediately power it off and discon nect the pow er cord fro m the outl et. Al so power off the power to the object under test. If any anomalies as noted, contact your local KYORITSU distributor.

- Use of protective gears -

● Use insulated gloves, boots or head gears at measurements to ensure user’s safety.

Page 11

KEW6310 Safety warnings

KEW6310 10

CAUTION

● Caution should be taken since conductors under test may be hot.

● Never apply currents or voltages exceeding the maximum allowable input for the instrument for a long time.

● Don’t apply currents or voltages to Voltage test leads or Clamp sensors while the instrument is in off status.

● Don’t use the instrument at dusty places or to be spattered.

● Don’t use the instrument under a strong electric storm or in the vicinity of energized object.

● Never give strong vibrations or drop shocks.

● Do not place or remove a CF card while CF card is being accessed. ( flashes while CF card is being

accessed.) Otherwise saved data in the card or the instrument may be damaged.

- Clamp sensor -

● Do not bend or pull the cabl e of the Clamp se nsor.

- Treatment after use -

● Power off the instrument and disconnect the Power cord, Voltage test leads and Clamp sensors from the instrument.

● Remove the batterie s if th e instrument is to be sto red and w ill not be in use for a lo ng peri od.

● Remove the CF card when carrying the instrument.

● Never give strong vibrations or drop shocks when carrying the instrument.

● Do not expose the instrument to direct sunlight, high temperatures, humidity or dew.

● Use a damp cloth with neutral detergent for cleaning the instrument. Do not use abrasives or solvents.

● Do not store the instrument if it is wet.

Carefully read and follow the instructions: DANGER, WARNING, CAUTION and NOTE ( ) described in each section.

The following symbols are used in this manual:

User must refer to the explanations in the instruction manual. Instrument with double or reinforced insulation, Class II insulation

~ AC

(Functional) Earth terminal

Page 12

1.1 Functional Overview KEW6310

1.1 KEW6310

1. Instrument Overview

1. 1 Functional Overview

Instantaneous value measurement

Measures average/max/min values of instan t ane ous values of current, voltage and electric power.

See Section 6 “Instantaneous value mea surement” for further details.

Integration value measurement

Measures active/ apparent/ reactive powers on each CH.

See Section 7 “Integration value measurement” for further details.

Demand measurement

Measures demand values based on the preset target values. Digital output signals alert the user that the predicted value may exceed a target value.

See Section 8 “DEMAND Measurement” for further details.

SET UP

Setting of KEW6310 or for measurements

See “Setting (Section 4)” for further details.

Page 13

KEW6310 1.1 Functional Overview

KEW6310 1.2

Measurement at WAVE Range

Displays vector / wave fo rm of vo lt a ge s and cu r rent s pe r CH

See “WAVE Range (Section 9)” for further details.

Harmonic measurement

Measures / analyzes harmonic comp on ent s of curre nt & voltages

See “Harmonic Analysis (Section 10)” for further

Power quality analysis

Measures swell, dip, int, transient, inru sh current, unbalance ratio and flicker, and also simulates power factor correction with capacitor banks.

* Flicker measurement function is only available with ver .2.00 or later.

See “Power Quality (Section 11)” for further details.

Page 14

1.2 Features KEW6310

1.3 KEW6310

1.2 Features

This is a Power Quality Analyzer that can be used for various wiring systems. It can be used for simple measurements of instantaneous/ integration/ demand values, and also for monitoring waveforms and vectors, analyzing harmonics and measuring the fluctuations in supply voltages and can perform Capacitance Calculation. Data can be sa ved either in the internal memory or a CF card, and can be transferred to a PC either via a USB lead or a CF Card reader.

Safety Construction

Designed to meet the international safety standard IEC 61010-1 CAT.III 600V/ CATII. 1000V

Wiring configuration

KEW6310 supports : Single-phase 2-wire , Single -pha se 3 -wire , Three-phase 3-wire, Three-phase 4-wire .

Measurement and caluclation

KEW6310 measures voltage (RMS), current (RMS), and calculates active/reactive/apparent power, pow er factor, phase angle, frequency, neutral current and active/ reactive/ apparent electric energy. (RMS)

Demand measurment

Electricity consumption can be easily monitored so as not to exceed the target maximum demand values.

Waveform / Vector display

Voltage and current can be displayed by waveform or vector.

Harmonic analysis

Harmonic components of voltage and current can be measured and analyzed.

Power quality analysis

Measuring Swell/ Dip/ Int, Transient, Inrush current, Unbalance ratio and flicker*, moreover , simulating power factor correction with capacitor banks. * Flicker measurement function is only available with ver.2.00 or later.

Page 15

KEW6310 1.2 Features

KEW6310 1.4

Saving data

KEW6310 is endowed with a logging function with a preset recording interval. Data can be saved by manual operation or at pre-set time & date. Screen data can be saved by using Print Screen function.

Dual power supply system

KEW6310 operates either with AC power supply or with batte ries. Bo th dry -ce ll batteri e s (al kal ine) and rechargeable batteries (Ni-MH) can be used. In the event of interruption, while operating with AC power supply, power to the instrument is automatically restored by the batteries in the instrument.

Large display

Color display with large screen

Light & compact design

Clamp sensor type, compact and light weight design

Application

Data in the internal memory or CF card can be transferred to a PC via a USB lead or a CF Card reader. As well supplied softw are fa cili t a te s set t ing, op tio na l analy si s so f tware facilitates data analysis.

Input/output function

Analogue signals from thermometers or light sensors can be measured simultaneously with electrical power data via 2 analogue inputs (DC voltage); signals exceeding preset threshold values at each range can be transmitted to alarm devices via 1 digital output (DC voltage)

Page 16

1.3 Connection Diagram KEW6310

1.5 KEW6310

1.3 Connection Diagram

Volt age Inpu t

Power Cord

USB

Digital Output (1ch)

Analogue Input (2ch)

CF Card

Recorder / Alarm device

Thermometer/Light sensor

Alkaline dry-cell / Ni-MH rechargeable batteries

Current Input

Page 17

KEW6310 1.4 Measuring Procedure

KEW6310 1.6

1.4 Measuring Procedure

● Step s for measurement

Ensuring your safety

See “Safety Warnings”.

Preparation

See “Section 3: Getting started”.

Basic / Measurement / Save Settings

See “Section 4: Setting”.

Wiring

See “Section 5: Wiring”.

* Measuring instantane ous values :

“Section 6: Instantaneous value Measurement”

* Measuring integration values:

“Section 7: Integration value Measurement”

* Measuring demand va lu es:

“Section 8: Demand Measurement”

* Measuring vectors and waveforms:

“Section 9: W AVE Range ”

* Analyzing Harmonics:

“Section 10: Harmonic Analysis”

* Measuring Power Quality:

“Section 11: Po wer Quality”

Page 18

1.5 Outline of max demand measurement concept KEW6310

1.7 KEW6310

1.5 Outline of max demand measurement concept

In some countries, large consumer s of e lec trici ty w ill usually have a max i mum de mand co ntra ct w ith the po w er company. Such contract varie s from coun try to co untry . Th e fo llow ing i s an ex pla nation o f a ty pical Japane se maximum demand contract.

● Maximum Demand con tra c t In such a contract the electricity tariff rates (i.e. for kWhr units) are based upon the consumer’s maximum power demand. The maximum demand is the maximum of average powers recorded over a 30min intervals. This is measured by the maximum dema nd me te r belong ing to the pow er co mp any. Le t’s assume tha t a pow er company has the following applic able ra tes. $2 per KWhr unit for a recorded max demand 300KW during a year $4 per KWhr unit for a recorded max demand 500KW during a year $5 per KWhr unit for a recorded max demand 600KW during a year Assuming that the consumer is on the 500kW/year rate (ie. $4), and the recorded max demand during a particular day(say 15th January) is 6 00kW . Then the new applicable rate from 1st February onwards will be the 600kW/year rate (ie. $5) for the next 365 days. If a year la ter, on Februa ry 1s t the re corded max imum demand is 300kW, then the new applicable rates w ill be chang ed to 30 0kW/yea r ra te (i .e. $2 ) for the sub seque nt 365 days. However if during this peri od, the max demand goes up again, a nd say 600kW is recorded on 15th March, the applicable rates change again to the 600kW/year rate (i.e.$5) for the subsequent 365 days.

● Benefits of maximum demand control It is thus important for consumers with such contracts to monitor closely fluctuations in their power demand to ensure that their max demand limits are not exceeded and thus incur higher tariffs. Maximum Demand control is more effective in countries w ith higher electricity tariffs.

● Status of maximum demand contract In the past, in Japan, only consumers whose electricity supply was rated at 600kW or more used to enter into a demand contract. However, now aday s pow er co mpan ies in stall maxi mum d emand mete rs at all con sume rs whose supply is rated 70kW or more.

● Maximum Demand measurement limitations N.B. The readings from power comp any max i mum de mand me ter and from the 630 0 will not ma tch comple tely due to an obvious time-lag difference in the start of the integration period (eg.30mins) over which the max demand is taken.

Page 19

KEW6310 1.5 Outline of max demand measurement concept

KEW6310 1.8

Page 20

2.1 Front View KEW6310

2.1 KEW6310

Display (LCD)

Keys

LED status indicator Green lights up : Recording & measuring Green flashes : S t and-by (lights up when preset time comes) Red flashes : Charging batteries

2. Instrument Layout

2.1 Front View

Display (LCD) / Keys

Page 21

KEW6310 2.1 Front View

KEW6310 2.2

Key Operations

Keys Details

Power Key

Power on / off the instrument

LCD ON/OFF Key

Display / hide the indications o n the LC D

Cursor Key

Select the setting items, switches screens

ENTER Key

Confirm entries

ESC Key/ RESET Key

Cancel setting changes, clear integration / demand data selected by Cursor Keys.

PRINT SCREEN Key

Save the displayed screen as a BMP (bitmap) file.

DATA HO LD Key / KEY LOCK Key

● Hold the readings. (can view the item an d system with Cursor Keys)

* Measurement continues even if screen is frozen.

● Key Lock Pressing 2 sec or more disables all Keys to prevent operational error. Another long press (2

sec or more) is required to restore the disabled Keys.

W : Measure instantaneous values Wh : Measure integration values

DEMAND : Measure demand values

: Waveform measurement : Harmonic measurement

QUALITY: Select any Ch and set threshold values to record sw ell/ dip / int/ transient with time information.

Menu Key

SET UP : Basic, Measurement, Save and Other settings

Function Key

Execute the displayed function

F1, F2, F3, F4 Key (from left to right)

Page 22

2.2 Connector KEW6310

2.3 KEW6310

2.2Connector

Descriptions

Wiring configuration Voltage Input Terminal Current Input Terminal

Single-phase 2-w ire (1 c h) “1P2W×1” VN, 1 A1 Single-phase 2-wire (2 ch ) “1P2W×2” VN, 1 A1, 2 Single-phase 2-wi re (3 ch ) “1P2W×3” VN, 1 A1, 2, 3 Single-phase 2-wire (4 ch ) “1P2W×4” VN, 1 A1, 2, 3, 4 Single-phase 3-wire (1 ch ) “1P3W×1” VN, 1, 2 A1, 2 Single-phase 3-wire (2 ch ) “1P3W×2” VN, 1, 2 A1, 2, 3, 4 Single-phase 3-w ire (1c h )

+ 2 Current

“1P3W×1+2A” VN, 1, 2 A1, 2, 3, 4

Three-phase 3-wire (1ch) “3P3W×1” VN, 1, 2 A1, 2 Three-phase 3-wire (2ch) “3P3W×2” VN, 1, 2 A1, 2, 3, 4 Three-phase 3-wire (1ch)

+ 2 Current

“3P3W×1+2A” VN, 1, 2 A1, 2, 3, 4

Three-phase 3-wire 3A “3P3W3A” V1, 2, 3 A1, 2, 3 Three-phase 4-wire (1ch) “3P4W×1” VN, 1, 2, 3 A1, 2, 3 Three-phase 4-wire (1ch)

+ 1 Current

“3P4W×1+1A” VN, 1, 2, 3 A1, 2, 3, 4

Power Connector

Current Input Terminal

(A1, A2, A3, A4)

Terminal Cover

Volt age Inpu t Terminal

(VN, V1, V2, V3)

Page 23

KEW6310 2.3 Side Face

KEW6310 2.4

CF Card Cover

Analogue Input/ Digit al outpu t

USB Port

Analogue Input/ Digital output Terminal

CF Card Slot

Eject Button

USB Connector

2.3 Side Face

Descriptions

Page 24

2.4 Battery Case KEW6310

2.5 KEW6310

2.4 Battery Case

Descriptions

* Set the Selector Switch to either “DR Y BATTERY” (alkaline) or “REC HARGEABLE BATTERY” (Ni-MH) position depending on the battery you use.

Battery Cover

Selector Switch Cover

Selector switch cover

Selector switch

Page 25

KEW6310 2.5 Marks displa yed on the LCD

KEW6310 2.6

2.5 Marks displayed on the LCD

Flash while saving data

Flash in stand-by mode

Flash while saving data to a CF Card

Flash while saving data to the internal memory Displayed when the capacity of CF Card or the internal

memory is full Displayed when KEW6310 is operating w ith AC power supply

Displayed when KEW6310 is operating w ith batteries

Displayed while Data hold fu nction is activa ted

Displayed when measured voltage exceed s a certain con dition

Displayed when measured current exceeds a cert ain condition

Displayed on the screen for Instantaneous value measurement

Displayed on the screen for Inte gration value me asurement

Displayed on the screen for Demand mea surement

Displayed on the W AVE Range screen

Displayed on the screen for Harmonic analysis

Displayed on the screen for Pow er quality measure ment

Displayed on the screen for Cap acitance cal culation

Displayed on the Setting screen

Displayed while Keys are locked

Displayed when swell occurs at Pow er quality measuremen t

Displayed when dip occurs at Pow er quality mea surement Displayed when short-interruption (int) occu rs at Pow er quality

measurement Displayed with sum of values measured a t each CH

Page 26

2.5 Marks displa yed on the LCD KEW6310

2.7 KEW6310

Marks for Function Keys

ｎ

Switch to the screen for Instanta neous value measurement

Switch to the screen for Integration value measurement

Switch to the screen for Demand measurement

Switch to the screen for Wa veform measurement

Switch to the V ecory disp lay screen Change scale of voltage at the screen fo r W aveform

measurement Change scale of current at the screen for W aveform measurement

Switch to W/ Wh/ DEMAND Setting screen

Switch to W AVE Range Setting screen

Switch to Harmonic analysis Setting screen

Switch to Power quality Setting screen

Page 27

KEW6310 2.5 Marks displayed on the LCD

KEW6310

2.8

Page 28

3.1.1 Putting a Connector plate on the Input terminal KEW6310

3.1 KEW6310

3. Getting started

3.1 Preparation

3.1.1 Putting Input terminal plate on the Input terminal

Six Input terminal plates are supplied with this instrument. Choose one Plate which matches the standard cord colors where the instrument is used. Put the Plate to the Input terminal observing the orientation. * Clean the Input terminal before putting the Plate and confirm it isn’t wet.

VN V1/A1 V2/A2 V3/A3 A4 TYPE 1 Blue Red Green Black Yellow TYPE 2 Blue Brown Black Gray Yellow TYPE 3 Black Yellow Green Red White TYPE 4 Blue Black Red White Yellow

TYPE 5 White Black Red Blue Yellow TYPE 6 Black Red Yellow Blue White

TYPE1

TYPE2

TYPE3

TYPE4

TYPE5

TYPE6

Put a proper Input terminal plate.

Input terminal plate.

Page 29

KEW6310 3.1.2 Attaching Markers to Voltage test leads and Clamp sensors

KEW6310 3.2

3.1.2 Att aching Markers to Voltage test leads and Clamp sensors

Attach Markers to the both ends of the Voltage test leads and Clamp sensors harmonized with the Input terminals. * Supplied Markers are 32 pcs in total : 4pcs each color (red, blue, yellow, green, brown, gray, black, white).

Attach Markers to the both ends of a Sensor .

Marker (32 pcs in total)

Attach Markers to the both ends of the Voltage test lead.

Page 30

3.2.1 Battery KEW6310

3.3 KEW6310

3.2 Power Supply

3.2.1 Battery

KEW6310 operates with either an AC power supply or batteries. Capable of perfo rmi ng me asuremen t s i n the event of AC po w er inte rrup tion, pow er to the i nstrument is au toma tical ly restored by the batt eries in st all ed i n the instrument. Dry-cell batteries (alkaline) and rechargeable batteries (Ni-MH) can be both used. It is also possible to charge rechargeab le batteri es in th e instrumen t. * Dry-cell batteries (alkaline) are supplied as accessories.

DANGER

● Never open the Battery Cover during a measurement.

● Brand and type of the batteries to be used should be harmonized.

● Never touch the Pow er suppl y conne ctor alt hou gh i t is in su la ted while the instrument is operating with

batteries.

WARNING

● Remove Power Cord, Voltage test leads and Clamp sensors from the instrument and power off the instrument before replacing the batteries.

● Remove the Selector Switch Cover, and slide the Selector Switch to left or right depending on the batte ries to be used. Do not use dry-cell batteries w ith the Selector Switch set to “RECHARGEABLE BATTER Y” position. It may cause electrical shock accident.

Position of Selector Switch Battery can be used RECHARGEABLE BATTER Y size AA Ni-MH recharg eable batte ry (HR-15 /51 ) DRY BATTERY size AA dry-cell alkaline battery (LR6)

CAUTION

● Do not mix new and old batterie s.

● Install batteries in correct polarity as marked inside .

Batteries are not in the instrument at the time of purchase. Please insert the supplied batteries in the instrument. Battery power is consumed even if the instrument is being off. Remove all the batteries if the instrument is to be stored and w ill not be in use for a lo ng pe ri od. When the i nstrumen t is pow ered by an AC power supply, it doesn’t operate with batteries.

If an AC supply is interrupted and the batteries hav e not been inse rted, the instrument goes off and all data may lost.

Page 31

KEW6310 3.2.1 Battery

KEW6310 3. 4

Display

Mark of power supply changes as follows.

AC power supply-operated Battery -opera te d*

mark flashes while charging batteries.

Battery Condition

Battery mark varies as follows depending on battery condition.

Alkaline dry battery (LR6) Ni-MH Rechargeable battery (HR-15/51)

about 2 hours

autonomy about 5 hours* autonomy

Batteries are exhausted. (Accuracy of readings cannot be guaranteed) In this case, the instrument operates as follows automatically.

Measurement continues, but data saving stop s. (Measured data is saved)

Measurement / data saving stops. (Measured data is saved)

Battery level is displayed by 20% levels. * reference time when using the instru me nt w ith indica ti ons on the LCD hid e

Page 32

3.2.1 Battery KEW6310

3.5 KEW6310

Inserting dry-cell batteries

1 Loosen two Battery Cover-fixing screws and remove the Cover. 2 Take out all the batteries. 3 Loosen the screws and remove the Selector Switch Cover.

Attention should be p aid so as not to lose the screws.

4 Slide to left and set the Selector Switch to “DRY” position. 5 Install the Selector Switch Cover with the marking of dry battery faced up, and tighten the screw s.

6 Insert batteries (LR6 : size AA alkaline batteries) in correct polarity. 7 Inst all the Battery Cover and tighten two screws. 8 Connect the AC Power Cord and pow er on the instrument.

Slide and set the Selector Switch to the proper position prior to installing the Selector Switch Cover. The instrument should be used w ith the Switch set to a proper position. Never make measurement w ithout installing the Cover.

Page 33

KEW6310 3.2.1 Battery

KEW6310 3.6

Rechargeable batteries

This instrument can charge rechargeable batteries via AC power supply.

1 Loosen two Battery Cover-fixing screws and remove the Cover. 2 Take out all the batteries. 3 Loosen the screws and remove the Selector Switch Cover.

Attention should be p aid so as not to lose the screws.

4 Slide to left and set the Selector Switch to “RE-CHARGEABLE” position. 5 Install the Selector Switch Cover with the marking of rechargeable battery faced up, and tighten the

screws.

6 Insert batteries (HR-15/51 : size AA Ni-MH rechargeable batteries) in corre ct pola rity. 7 Inst all the Battery Cover and tighten two screws. 8 Connect the AC Power Cord and pow er on the instrument.

~ Battery charge ~

Message windows on the next page appear when starting the instrument unde r following conditions and with battery level of 40% or less. * Install rechargeable ba tteries (N i -MH) * Slide and set the Selector Switch to “RE-CHARGEABLE” position. * Connect the AC Power cord and power on the instrument.

Refer to “4.2.4 Other Settings” and see the procedure to start battery charge any time.

9 Follow the message displayed on the LCD and press the Cursor and ENTER Keys to start

charging batteries. Selecting “No” returns to the normal screen.

Battery charge doesn’t initiate only by inst al lin g recha rgea ble batte rie s and conn ectin g an AC power cord. Above operation is required to start a battery charge.

Page 34

3.2.1 Battery KEW6310

3.7 KEW6310

Battery charge starts and the screen returns to normal.

● Charging batteries

Indications on the instrument during a charging are as follows.

Indications LCD ON Battery mark on the LCD flashes.

LED status indicator doesn’t light up.

LCD OFF or Instrument is OFF

LED status indicator flashes in red. LED status indicator flashes in green while

recording data.

Slide and set the Selector Switch to the proper position prior to installing the Selector Switch Cover. The instrument should be used w ith the Switch set to the proper position. Never make measurement without installing the Cover.

Page 35

KEW6310 3.2.1 Battery

KEW6310 3.8

Charging cycle is 5 min, and charging patterns vary as follows depending on the instrument condition. This is to control temperature rises on the instrument resulting from battery charge.

Pattern Charging Pause Total

charging time

I. Power

ON (LCD_ON)

0.7 min 4.3 min 48h

II. Power

ON (LCD_OFF)

2.1 min 2.9 min 14h

III. Power

OFF

4.2 min 0.8 min 7h

Page 36

3.2.2 AC Power Supply KEW6310

3.9 KEW6310

3.2.2 AC Power Supply

Check the followings before connecting the Power cord.

DANGER

● Use only the Power cord supplied with this instrument.

● Connect the Power cord mains pl ug to a ma ins so cket ou tle t. The ma ins su pply vol t age must no t exceed

AC240V. (max rated vol t age of supp lied Power cord MODEL7169 : AC125V)

WARNING

● Confirm that the instrument is powered off, and then connect the Power cord.

● Connect the Power cord to the instrument first. Cord to be firmly inserted.

● Never attempt to make mea suremen t if any abn ormal co ndi tion s such as abno rmal condi ti ons are noted ,

such as a broken Cover and exposed metal parts.

● When the instrument is not in use, disconnect the Pow er cord from the outlet.

● When unplugging the cord from the mains socket outlet, do so by removing the plug first and not by

pulling the cord.

Power cord connection

Follow the procedure below, and connect the Power cord.

1 Confirm that the instrument is powered off. 2 Connect the Power cord to the Power connector on the instrument.

3 Connect the Power cord plug to a mains socket outlet.

Power supply rating

Following table show s the Pow er supp ly rating .

Rated supply voltage : 100 ~ 240V AC(±10%) Rated power supply frequency : 45 ~ 65Hz Max power consumption : 20VA max

Page 37

KEW6310 3.3 Voltage test leads and Clamp sensor connection

KEW6310

3.10

3.3 Voltage test leads and Clamp sensor connection

Check the followings before connection.

DANGER

● Use only the Voltage test leads supplied with this instrument.

● Use the dedicated Clamp sensor for this instrument, and confirm that the measured current rating of the

Clamp sensor is not exceeded.

● Do not connect all the Voltage test leads or Clamp sensors unless required for measuring the parameters

desired.

● Connect the test leads and sensors to the instrument first, and only then conne ct them to the circuit

under test.

● Never disconnect the Voltage test leads and sensors while the instrument is in use.

WARNING

● Confirm that the instrument is powered off, and then connect the Power cord.

● Connect the Power cord to the instrument first. Cord to be firmly inserted.

● Never attempt to make mea suremen t if any abn ormal co ndi tion s such as abno rmal condi ti ons are noted ,

such as a broken Cover and exposed metal parts.

Voltage test leads and Clamp sensor connection

Follow the procedure below, and connect the Voltage test leads and Clamp sensors.

1 Confirm that the instrument is powered off. 2 Connect the appropriate Voltage test leads to the Voltage input terminal on the instrument. 3 Connect the appropriate Clamp sensors to the Current input terminal on the instrument. Match the direction of

the arrow mark indicated on the output terminal of the clamp sensor and the mark on the Current input terminal on the instrument.

* Number of Voltage test leads and Clamp sensors to be used depends on the wiring configuration under test. For further deta il s , r e fe r t o “5.2 Bas ic Wiring Configura tion” in this manual.

Match the arrow marks.

Page 38

3.4.1 Start-up Screen KEW6310

3.11 KEW6310

3.4 Start KEW6310

3.4.1 Start-up Screen

Hold down the POWER Key until the Start-up screen is displayed. Pressing the POWER Key for 2 sec or more powers off the instrument. Following screen is displayed when the instrument is on.

1 MODEL/VERSION screen is displayed, and a self-check routine starts. Then KEW logo will appear.

2 Previous screens displayed at last operation are back on.

Page 39

KEW6310 3.4.1 Start-up Screen

KEW6310 3.12

Page 40

3.4.2 Error message KEW6310

3.13 KEW6310

3.4.2 Error message

Following screen may appear after a self-check routine.

● When a failure is detected;

This instrument automati cally che cks the in ternal ci rcuit i mme diat ely a fte r it is pow ered on.

If a suspect failure in the internal circuit is detected, the error screen below will be displayed for about 5 sec.

In this case, refrain from using the instrument and refer to “Section15: Troubleshooting” in this manual.

CAUTION

Notwithstanding the erro r screen , the me a suremen t scre en w ill app ear and the in strume nt w ill take measurements anyway. How ever, accurate readings may not be obtained.

● When connected sensors are changed;

Clamp sensors connected are display ed fo r 5 se c as follows. When no sensor is connected, previous settings are kept.

Page 41

KEW6310 3.4.2 Error message

KEW6310 3.14

● When CF card needs to be formatted;

Following screen is displayed for 5 sec w hen a CF Card ha s to be fo rmatted . * Only the CF Card formatted via FA T system can be used with this instrument.

Select “Yes” to format the CF Card. * All the data saved in the CF Card will be cleared. CF Card cannot be selected as a destination to save data if “No” is selected.

Refer to “12.3 CF Card / Internal memory” in this manual which sh ow s how to format a CF Card.

Page 42

4.1 List of Setting items KEW6310

4.1 KEW6310

4. Setting

4.1 List of Setting items

Settings for measurement condition and dat a sa ving are ne cessa ry prio r to ma king mea suremen t s. Pre ss the

Key to enter into SET UP mode and do necessary settings.

Setting screens consists of following screens.

Basic Setting

Wiring

V Range VT Ratio Clamp A Range CT Ratio Filter DC V Frequency

Interval Save Items Target Demand Demand Inspection Cycle

Interval Save Items

Measurement Setting

Interval THD Calculation Allwoable Range MAX HOLD Save Items

Basic

Measurement

(W/Wh/DEMAND)

Measurement

( )

Measurement

( )

Pressing the Keys moves to: * Basic Setting

* Measurement Setting * Save Setting * Other Setting

Page 43

KEW6310 4.1 List of Setting items

KEW6310 4.2

Swell / Dip / Int Measurement

Interval* Reference Voltage Transient* Swell Dip Int (short-interruption) Hysteresis Trigger point

Transient Measurement

Interval* Volt age Ra nge Threshold valu e Hysteresis Trigger point

Inrush current Measurement

Interval* Clamp Current Range Reference Current Filter Threshold valu e Hysteresis Trigger point

Unbalance rate measurement

Interval Output threshold value

Flicker*

V Range Filter Output item Output Threshold

Capacitance calculation

Interval Target Power Factor

Recording Method Recodring Start Recording End Destination to Save dat a Destination to Save screenshot

Save Setting

Formatting CF Card Deleting the data in C F Ca rd Formatting Internal Me m ory Deleting the data in Internal Memory Data transfer (from Internal Memory to CF Ca rd) Loading Setting Save Setting

Language Date Format Time and Date Buzzer CSV File ID Number LCD Contrast CH Color

Other Setting

Auto-Power-Off LCD-Auto-Off Battery Charge System Reset

* Flicker measurement function is only available with ver.2.00 or later.

Measurement

( )

Save

(1/2)

Save (2/2)

Other

(1/2)

Other

(2/2)

Page 44

4.2.1 Basic Setting KEW6310

4.3 KEW6310

4.2 Settings

4.2.1 Basic Setting

Wiring Configuration

① 1P2W×1 Single-phase 2-wire (1ch) ⑩ 3P3W×1+2A

Three-phase 3-wire (1ch) + 2-current

② 1P2W×2 Single-phase 2-wire (2ch) ⑪ 3P3W3A Three-phase 3-wire 3A ③ 1P2W×3 Single-phase 2-wire (3ch) ⑫ 3P4W×1 Three-phase 4-wire (1ch) ④ 1P2W×4 Single-phase 2-wire (4ch) ⑬ 3P4W×1+1A

Three-phase 4-wire (1ch) + 1-current

⑤ 1P3W×1 Single-phase 3-wire (1ch) ⑥ 1P3W×2 Single-phase 3-wire (2ch)

⑦ 1P3W×1+2A

Single-phase 3-w ire (1 ch ) + 2-current

⑧ 3P3W×1 Three-phase 3-wire (1ch) ⑨ 3P3W×2 Three-phase 3-wire (2ch) 4A 4-current

* Default value (or after system reset) : ⑬ 3P4W×1+1A * Wiring of 4A can be selected only at W Range. Default value is adopted when selecting the other Ranges.

1 Press the Cursor Keys and select [Wiring], and then press the ENTER Key .

2 Press the Cursor Keys and select a proper wiring configuration, and then press

the ENTER Key.

List of wiring configuration appears.

Selected wiring configuration is displayed.

Page 45

KEW6310 4.2.1 Basic Setting

KEW6310 4.4

Check of Connection diagram

Connection diagram can be viewed at selecting a wiring configuration.

Move to a screen for selecting a wiring configuration. Use the Cursor Key s to select a wiring configuration, and then press the F4 Key.

F1 Key / Key : to view preceding conn e cti on dia gra m F2 Key / Key : to view subsequent connection diagram F4 Key / ESC Key : returns to SET UP screen for selecting wiring configuration ENTER Key : confirms the selected wiring configuration and returns to Basic Setting Screen

Press the F4 Key to display the connection diagram for the selected wiring configuration.

Selected connection di agra m i s di splay ed .

Page 46

4.2.1 Basic Setting KEW6310

4.5 KEW6310

Setting for Voltage Range

150V 300V 600V 1000V

* Default value (or after system reset) : 300V

1 Press the Cursor Keys and select [V Range], and then press the ENTER Key.

2 Press the Cursor Keys and select a desirable voltage value, and then press the

ENTER Key.

Selected voltage value is displayed.

Drop down list appears.

Page 47

KEW6310 4.2.1 Basic Setting

KEW6310 4.6

Setting for VT Ratio

0.01 ~ 9999.99 (can be set by 0.01) * Default value (or after system reset) : 1.00

For the details of VT ratio, refer to “5.4 VT / CT Ratio” in this manual.

1 Press the Cursor Keys and select [VT Ratio], and then press the ENTER Key.

2 Press the Cursor Keys and alter the values, and press the ENTER Key

to fix it.

Box with ▲▼ mark appears at the hundredths' pla ce.

Press the Cursor to toggle the value from 0 to 9.

When increasing a value to 0 in ascending sequence, value at the tents'

lace increases by 1.

Press the Cursor to toggle the value from 9 to 0.

Page 48

4.2.1 Basic Setting KEW6310

4.7 KEW6310

In case that a preset value is 0000.01, the hundreds’ place cannot be altered in descending sequence. Similarly, if a preset value is 9999.99, thousand’s place cannot be altered in ascending sequence.

When decreasing a value to 0 in descending sequence, value at the tents' place decreases by 1.

Press the Cursor to move to upper places.

Press the Cursor to move to lower places.

Selected VT ratio is displayed.

Page 49

KEW6310 4.2.1 Basic Setting

KEW6310 4.8

Setting for Clamp sensor

Model names and rated currents of Clamp sensors are listed as follows.

Clamp sensors for Power measurement

Leakage Clamp sensor

8128

50A ty pe

8141

1A ty pe

8127

100A ty pe

8142

1A ty pe

8126

200A ty pe

8143

1A ty pe

8125

500A ty pe

8146

10A ty pe

8124

1000A ty pe

8147

10A ty pe

8129

3000A ty pe

8148

10A ty pe

* Default value (or after system reset) : 8125 * Clamp sensors for measurement s other than power are available only at

following wiring configurations.

Number of available Clamp sensor depends on a wiring configuration to be measured.

① 1P2W×1

1ch

② 1P2W×2 1ch 2ch ③ 1P2W×3 1ch 2ch 3ch ④ 1P2W×4 1ch 2ch 3ch 4ch ⑤ 1P3W×1

⑧ 3P3W×1

1,2ch

⑥ 1P3W×2 ⑨ 3P3W×2

System 1(1,2ch) System 2(3,4ch)

⑦ 1P3W×1+2A ⑩ 3P3W×1+2A

1,2ch 3ch 4ch

⑪ 3P3W3A ⑫ 3P4W×1

1,2,3ch

⑬ 3P4W×1+1A 1,2,3ch 4ch 4A 1ch 2ch 3ch 4ch

* Default value (or after system reset) : ⑩ 1,2,ch 3, 4ch * Channels highlighted in light y ellow are app lica ble on ly to Cl amp sen sors fo r power measurement. * Channels highlighted in gray are appli cable to Clamp sen sors fo r pow er measurement and Leakage Clamp sensors.

Page 50

4.2.1 Basic Setting KEW6310

4.9 KEW6310

Manual setting and auto setting both are available for Clamp sensors.

<< Manual Setting >>

1 Press the Cursor Keys and select [Cla mp], and then press the ENTER Key.

2 Press the Cursor Keys and select a Clamp sensor to be used, and then press the

ENTER Key.

Drop down list appears.

Selectable Clamp sensors depend on the selected wiri ng configurations.

Selected Clamp sensor is displayed with corresponding Ch.

Page 51

KEW6310 4.2.1 Basic Setting

KEW6310 4.10

3 Press the Cursor Keys and select Clamp sensors to be used a t the othe r CH, an d

make settings in the same way.

Settings for [Clamp] and [A Range] are active in subsequent measurements, but they w ill ch ange when preset wiring configurations a re ch anged . The highest Range is applied to all Chs when the [A Range] at each Ch should be harmonized due to a change of wiring configurations.

When setting for [Clamp] is done, the upper limit of measuring range of the selected sensor is display ed au tomatically.

Page 52

4.2.1 Basic Setting KEW6310

4.11 KEW6310

<< Auto Setting >>

Model name of the Clamp sensor connected to the Current Terminal of the instrument is detected automatically at Auto setting mode. Setting for [Wiring] should be don e to ad vance Auto setting.

1 Confirm that settings for [Wiring] are made, and then press the F2 Key.

The max measurable values on Clamp sensor are reflected in setting for [A Range]. [CT ratio] is automatically set to 1.00. For [Filter], bars are displayed when the detec ted se nsors are MODEL812X serie s and OFF i s displayed when the sensors are MODEL814X serie s.

Setting will be changed if new sensors are detected at powering on the instrument.

Pressing the F2 Key initiates auto setting for Clamp sensor.

Connected Clamp sensors are automatically detected, and settings for [A Range], [CT ratio] and [Filter] are made automa ti cally.

Page 53

KEW6310 4.2.1 Basic Setting

KEW6310 4.12

The instrument detects and checks the connected Clamp sensors and the selected wiring configuration, and displays following messages when improper Clamp sensors are connected.

< Improper Clamp sensor is detected >

Recheck and connect proper Clamp sensors.

< No sensor is detected >

Check the Clamp sensor connected to the Current input terminal corresponding to the Ch number displayed with question mark. When starting measurement with the question mark displayed at the [Clamp] box, previous setting is applied automatically.

Model names of the connected Clamp sensors are displayed. Bars are displayed at A range, CT ratio and Filter boxes.

Question mark “?” is displayed at Model name and Current range boxes . CT ra tio is automatically s e t to 1 .00 . Bars are displ ay ed at Filter box.

Question mark “?” is displayed at Model name box.

CT ratio is automatically set to 1.00. Bars are displayed at Filter box.

Page 54

4.2.1 Basic Setting KEW6310

4.13 KEW6310

Setting for Current Range

Available Current Range varies depending on the Clamp sensor to be used.

8128 1/5/10/20/50A/AUTO 8127 10/20/50/100A/AUTO 8126 20/50/100/200A/AUTO 8125 50/100/200/500A/AUTO 8124 100/200/500/1000A/AUTO 8129 300/1000/3000A 8141 8142 8143

100mA/500mA/1A/AUTO

8146 8147 8148

500mA/1/5/10A/AUTO

* Default value (or after system reset) : 200A(8125)

1 Press the Cursor Keys and select [A Range], and then press the ENTER Key.

Page 55

KEW6310 4.2.1 Basic Setting

KEW6310 4.14

2 Press the Cursor Keys and select a Current Range to be used , and th en pr ess the

ENTER Key.

3 Press the Cursor Keys and select Clamp sensors to be us ed a t the o ther Ch, an d

make settings in the same w ay.

Settings of [Clamp] and [A Range] are active in following measurement s , but they w ill ch ange w hen preset wiring configurations are changed. The highest Range is applied to all Chs when the [A Range] at each Ch should be harmonized due to a change of wiring configurations.

Drop down list appears.

Selected Current Range per Ch is displayed.

When setting for [Clamp] is done, the upper limit of measuring range of the selected sensor is displayed automatically.

Page 56

4.2.1 Basic Setting KEW6310

4.15 KEW6310

0.5

0.2

0.05 6

0.5

5.5

0.01

1.2

0.1 1.1

120

10 110

0.5

555

0.2 24

222

0.1

111

240

220

1 120

110

600.5

555

0.2 24

600

50 550

240

220

120

11010

600.5

555

1200

1100100

600

550

2402

220

120

11010

360030

3300300

1200

1100100

360

330

1.2

0.01

1.10.1

0.6

0.005

0.55

0.05

0.12

0.001

0.110.01

120.1

111

0.05

5.5

0.5

1.2

0.01

1.1

0.1

0.6

0.005

0.55

0.05

0.1

111

0.001 0.01 0.1 1 10 100 1000 10000

電流（A）

(A)

Display range and guaranteed accuracy range for each Current Range are as follows.

Sensors: 8141/42/43 and 8146/47/48 cannot be used for power measurements.

8128

8127

8126

8125

8124

8129

8141/ 42/43

8146/ 47/48

Display range

Accuracy range

50ARange 20ARange

10ARange 5ARange

1ARange

100ARange 50ARange 20ARange 10ARan

200ARange 100ARange 50ARange 20ARange

500ARange 200ARange

100ARange 50ARange

1000ARange ﾞ

500ARange 200ARange

100ARange

1ARange

0.5ARange

0.1ARan

3000ARange 1000ARange 300ARange

10ARange 5ARange 1ARange

0.5ARange

Page 57

KEW6310 4.2.1 Basic Setting

KEW6310 4.16

Setting for CT ratio

0.01 ~ 9999.99 (can be set by 0.01)

* Default value (or after system reset) : 1.00

For the details of CT ratio, refer to “5.4 VT / CT Ratio” in this manual.

1 Press the Cursor Keys and select [CT Ratio], and then press the ENTER Key.

2 Setting procedure is same to that for VT ratio. Refer to the procedure described in the

preceding pages.

3 Press the Cursor Keys and select CT ratio for the other Chs, and make settings in the

same way.

Page 58

4.2.1 Basic Setting KEW6310

4.17 KEW6310

Setting for Filter

Lowpass filter activate to cu t frequ enci es in hi gher ha rmoni c ban d w hen set the Fil ter fu ncti on “ON ”. (Cutoff frequency : approx 160Hz)

Filter

Available (ON⇔OFF)

Not available (------)

Wiring

⑦1P3W x 1+2A 3,4ch ⑩3P3W x 1+2A 3,4ch

⑬3P4W x 1+1A 4ch

Clamp Sensor 8141/42/43/46/47/48 8128/27/26/25/24/29

* Default value (or after system reset) : ----- or OFF * Bar “------“ is displayed for the Filter other than listed above, and a setting cannot be made.

1 Press the Cursor Keys and select [Filter], and then press the ENTE R Key.

2 Press the Cursor Keys and select “ON” or “OFF”, and then press the ENTER Key.

3 Press the Cursor Keys and select ON / OFF for the other Chs, and make settings in the

same way.

Drop down list appears.

Incapable of selecting ON/OFF depending on the connected Sensors.

Selected Filter setting (ON or OFF) is displayed.

Page 59

KEW6310 4.2.1 Basic Setting

KEW6310 4.18

Setting for DC V

Setting for Voltage Range at analogue input terminal can be ma de accordin g to the pro cedure below.

50mV 500mV 5V

* Default value (or after system reset) : 5V

1 Press the Cursor Keys and select [DC V], and then press the ENTER Key.

2 Press the Cursor Keys and select a DC Range to be used, and then press the ENTER Key .

3 Press the Cursor Keys and select DC Range for 2ch, and make settings in the

same way.

Drop down list appears.

DC Range selected for 1ch is displayed.

Page 60

4.2.1 Basic Setting KEW6310

4.19 KEW6310

Setting for Frequency

Frequency of the fixed clock ca n be change d acco rdin g to fol low ing pr ocedure w hen PLL synchronized measurement cannot be made.

50Hz 60Hz

* Default value (or after system reset) : 50Hz

1 Press the Cursor Keys and select [Freq], and then press the ENTER Key.

2 Press the Cursor Keys and select “50Hz” or “60Hz”, and then press the ENTER Key.

Drop down list appears.

Selected frequency is displayed.

Page 61

KEW6310 4.2.1 Basic Setting

KEW6310 4.20

Page 62

4.2.2 Measure ment setting (W/Wh/DEMAND) KEW6310

4.21 KEW6310

4.2.2 Measurement setting

W/ Wh/ DEMAND

Press the F1 Key at Measurement setting screen to move to the setting screen for W/ Wh/ DEMAND Range.

Setting for interval

Interval is a space of the time be tween da t a sa ving s; da t a is saved in a C F card o r In terna l memory.

1 sec 2 sec

5 sec 10 sec 15 sec 20 sec 30 sec

1 min 2 min

5 min 10 min 15 min 20 min 30 min

1 hour

* Default value (or after system reset) : 30 min

1 Press the Cursor Keys and select [Interval], and then press the ENTER Key.

2 Press the Cursor Keys and select any desirable interval, and then press the

ENTER Key.

Drop down list appears.

Selected interval is displayed.

Page 63

KEW6310 4.2.2 Measurement setting (W/Wh/DEMAND)

KEW6310 4.22

Setting for inst / avg / max / min values

Select “ON” for the parameters to be saved.

ON⇔OFF

* Default value (or after system reset) : ON

1 Press the Cursor Keys and select any of [Inst / Avg / Max / Min], and then press the

ENTER Key.

2 Press the Cursor Keys and select “ON” or “OFF”, and then press the ENTER Key.

When an interval is set to 1 sec, Inst value= Avg value= Max value = Min value. In this case, only Inst values are recorded. (“ON” is available only for Inst) Incapable of applying “OFF” to all the items.

3 Press the Cursor Keys and make settings for [Avg / Max / Min] as well.

Drop down list appears.

ON / OFF is displayed.

Point a parameter to change the setting.

Page 64

4.2.2 Measure ment setting (W/Wh/DEMAND) KEW6310

4.23 KEW6310

Setting for detailed items

Parameters saved under ON or OFF setting for Det ailed item are listed below .

ON OFF WP+ / WP- O O WS+ / WS- O X WQi+ / WQc+ O O WQi- / WQc- O X Each CH O X

ON⇔OFF

* Default value (or after system reset) : ON

1 Press the Cursor Keys and select [Detailed item], and then press the ENTER Key.

2 Press the Cursor Keys and select “ON” or “OFF”, and then press the ENTER Key.

Drop down list appears.

ON / OFF is displayed.

Page 65

KEW6310 4.2.2 Measurement setting (W/Wh/DEMAND)

KEW6310 4.24

Setting for Target demand

For the details of target demand, refer to “Section8 Demand measurement” in this manual.

1.000 ~ 999.9(can be set by 0.1) mW/W/kW/MW/GW/TW

* Default value (or after system reset) : 300.0kW

1 Press the Cursor Keys and select [Demand Target], and then press the ENTER Key.

2 Press the Cursor Keys and alter the values.

Page 66

4.2.2 Measure ment setting (W/Wh/DEMAND) KEW6310

4.25 KEW6310

3 Use the Cursor Keys and set multipliers.

Multiplier Setting

As a target de ma nd, values within a range between 1000 and 9999 can be used. To select a value 1000 or less, minus multiplier should be used.

100.0 = 1000 x 10 -1

10.00 = 1000 x 10 -2

1.000 = 1000 x 10 -3

4 Press the Cursor Keys and a select proper unit, and then press the ENTER Key.

Selected target demand is displayed.

Page 67

KEW6310 4.2.2 Measurement setting (W/Wh/DEMAND)

KEW6310 4.26

Setting for Demand inspection cycle

For the details of Demand inspection cycle, refer to “Section 8 Demand measurement” in this manual.

Demand Interval

Demand Inspection Cycle

1 sec 2 sec 5 sec

invalid

10 sec 1sec/2sec/5sec 15 sec 2sec/5sec/10sec 20 sec 5sec/10sec /15s ec 30 sec 10sec/15sec/20sec

1 min 15sec/20sec/30sec 2 min 20sec/30sec/1min

5 min 30sec/1min/2min 10 min 1min/2min/5min 15 min 2min/5min/10min 20 min 5min/10min/15min 30 min 10min/15min/20min

1 hour 15min/20min/30min

* Default value (or after system reset) : 10 min

Page 68

4.2.2 Measure ment setting (W/Wh/DEMAND) KEW6310

4.27 KEW6310

1 Press the Cursor Keys and select [Demand Inspection], and then press the ENTER Key.

2 Press the Cursor Keys and select a desirable cycle, and then press the ENTER Key.

Demand Inspection Cycle listed on the drop down list depends on the selected interval. Change the interval setting first w hen a de sira ble cy cl e isn’ t liste d on th e dro p dow n list.

Drop down list appears.

Selected Demand Inspection Cycle is displayed.

Page 69

KEW6310 4.2.2 Measurement setting (WAVE Range)

KEW6310 4.28

Page 70

4.2.2 Measurement setting (WAVE Range) KEW6310

4.29 KEW6310

WAVE Range Setting

Press the F2 Key at each Measurement setting screen, and move to the screen for WAVE Range Setting.

Setting for interval

* Default value (or after system reset) : 30 min * Setting procedure is same to that for interval Setting for W/ Wh/ DEMAND.Refer to the procedure described in

the preceding pages.

Interval listed on the drop down list depends on the number of save items with “ON” setting. Alter the number of save items with “ON” setting when desirable interval isn’t listed on the drop down list.

Interval Number of “ON”

1 sec 1 2 sec 2 or less

5 sec or more 5 or less

Setting for saving Waveform data

Parameters with “ON” setting will be saved.

V A

ON⇔OFF

* Default value (or after system reset) : ON (all items)

1 Press the Cursor Keys and select a parameter to be changed, and then pre ss the

ENTER Key.

2 Press the Cursor Keys and select “ON” or “OFF”, and then press the ENTER Key.

Drop down list appears.

Setting of the selected item is displayed.

Page 71

KEW6310 4.2.2 Measurement Setting (Harmonic Analysis)

KEW6310 4.30

Harmonic Analysis

Press the F3 Key at each Measurement setting screen, and move to the screen for Harmonic Analysis Setting.

Setting for interval

* Default value (or after system reset) : 30 min * Setting procedure is same to that for interval Setting for W/ Wh/ DEMAND.Refer to the procedure described in

the preceding pages.

Interval listed on the drop down list depends on the number of save items with “ON” setting. Alter the number of save items with “ON” settin g when desi rabl e inte rval is n’t li sted on the drop down list. Interval of 1 sec is not available.

Interval Number of “ON”

2 sec 1 5 sec 2

10 sec 5

THD Calculation Setting

THD stands for “Total Harmonic Distortion”.

THD-F THD-R

* Default value (or after system reset) : THD-F

THD-F Fundamental waveform-basis THD-R Total RMS value-basis

1 Press the Cursor Keys and select [THD Calculation], and then press the ENTER Key.

2 Press the Cursor Keys and select “THD-F” or “THD-R”, and then press the EN TER

Key.

Drop down list appears.

Selected THD calculation method is displayed.

Page 72

4.2.2 Measure m ent Setting (Harmonic Analysis) KEW6310

4.31 KEW6310

Setting for allowable range

For the details of allowable range of Harmonic Analysis, refer to “Section10 Harmonic analysis” in this manual.

Default value

(can be set by 0.1)

Customize

(can be set by 0.1)

* Default value (or after system reset) : Default value

Either default values listed in the below table or customized values can be used.

Default values

----

2.0

5.0

1.0

6.0

3.0

5.0

0.5

1.5

0.5

3.5

0.5

3.0

0.5

2.0

0.5

1.5

0.5

1.5

0.5

1.5

0.5

* These values are applied as default values or after system reset.

Customize

1 ~ 63

0.0 ~ 99.9

Page 73

KEW6310 4.2.2 Measurement Setting (Harmonic Analysis)

KEW6310 4.32

< Adopting default values >

1 Press the Cursor Keys and select [Allowable range], and then press the ENTER Key.

2 Press the Cursor Keys and select [Default Value], and then press the ENTER Key.

3 Selectable default value is displayed. Press the Cursor Keys and point [OK] to accept

the value and press the ENTER Key. Point [Cancel] with Cu rsor Keys, and press the

ENTER Key to select the values other than the ones listed bel ow. (or press the ESC Key) Then screen returns to 1. Select [Customize] and set a desirable value. See “Adopting customized values” which indicates how to customize the values.

Drop down list appears.

Point the cursor here.

Setting for allowable range is displayed.

Page 74

KEW6310 4.2.2 Measurement Setting (Harmonic Analysis)

4.33 KEW6310

< Adopting customized values >

1 Press the Cursor Keys and select [Allowable range], and then press the ENTER Key.

2 Press the Cursor Keys and select [Customize], and then press the ENTER Key.

3 Press the Cursor Keys and select the order to be changed, and then press

the ENTER Key.

4 According to th e procedu re to ch ange VT ra tio described at preced ing page and alter the

values.

Drop down list appears.

Box with ▲▼ mark appears at the first decimal place.

Page 75

4.2.2 Measure m ent Setting (Harmonic Analysis) KEW6310

KEW6310 4.34

5 Press the Cursor Keys and move the cursor to [OK], and press the ENTER Key. To cancel the alternations of values, move the cursor to [Cancel], and press the ENTER Key. Then Screen returns to 1 .

Point the cursor here.

Indicating that allowable ranges are customized.

Page 76

KEW6310 4.2.2 Measurement Setting (Harmonic Analysis)

4.35 KEW6310

Setting for MAX HOLD

For the details of Max Hold in Harmonic Analysis, refer to “Section10 Harmonic analysis” in this manual.

ON⇔OFF

* Default value (or after system reset) : ON

1 Press the Cursor Keys and select [MAX Hold], and then press the ENTER Key .

2 Press the Cursor Keys and select “ON” or “OFF”, and then press the ENTER Key.

Drop down list appears.

ON or OFF is displayed.

Page 77

4.2.2 Measure m ent Setting (Harmonic Analysis) KEW6310

KEW6310 4.36

Setting for saving items

Parameters with “ON” setting will be saved.

V A

ON⇔OFF

* Default value (or after system reset) : ON (all items)

1 Press the Cursor Keys and select a parameter to be changed, and then press

the ENTER Key.

2 Press the Cursor Keys and select “ON” or “OFF”, and then press the ENTER Key.

Measured data won’t be saved at the channel with “OFF” setting, nor displayed during measurement.

Drop down list appears.

Setting of the selected item is displayed.

Page 78

KEW6310 4.2 .2 Measurement Setting (QUALITY-Swell, Dip, Int Measurement)

4.37 KEW6310

QUALITY

Press the F4 Key at Measurement setting screens to move to the QUALITY setting screen.

Access to “QUALITY” from Measurement Setting Tab, and press the Cursor Keys and select : Swell / Dip / Int, Transient, Inrush current, Unbalance rate, Capacitance calculation and Flicker measurement*.

* Flicker measurement function is only available with ver.2.00 or later.

Setting for Swell / Dip / Int Measurement

For the details of Swell / Dip / Int measurement, refer to “11.2 Swell / Dip / Int measurement” in this manual.

Setting Items

Interval*2 : set interval time Reference Voltage*1 : set a standard voltage (70 ~ 1000V) Transient*2 : set Vpeak against Vol t age Range (50 ～2000Vpeak) Swell *1 : set a threshold value greater than the reference voltage (100 ~ 200%) Dip *1 : set a threshold value smaller than the reference voltage (5 ~ 100%) Int *1 : set a threshold value smaller than the reference voltage (5 ~ 98%) Hysteresis : set a hysteresis for Swell / Dip / int (1 ~ 10%) Trigger Point : set the number of data save point prior to / following an even t of tri gger

* Voltage value is automatically calculated when setting percentages for Swell / Dip / Int / Hysteresis. *1 Each values should be;

- (Int + Hysteresis) < (Dip)

- (Dip + Hysteresis) < (Swell)

*2 Flicker measurement function is only available with ver .2.00 or later.

Page 79

4.2.2 Measure ment Setting (QUALITY-Swell, Dip, INT Measurement) KEW6310

KEW6310 4.38

Setting for interval

Interval is a space of the time be tween da t a sa ving s; da t a is saved in a C F card o r In terna l memory. * Default value (or after system reset) : 30 min * Setting procedure is same to that for interval Setting for W/ Wh/ DEMAND.Refer to the procedure described in

the preceding pages.

Setting for reference voltage

70 ~ 1000V (can be set by 1V)

* Default value (or after system reset) : 100V

1 Press the Cursor Keys and select [V_Reference], and then press the ENTER Key.

2 Press the Cursor Keys and alter values, and then press the ENTER Key.

Box with ▲▼ mark appears at the rightmost digit.

Selected reference voltage is dis

play

ed.

Page 80

KEW6310 4.2.2 Measurement Setting (QUALITY-Swell, Dip, Int Measurement)

4.39 KEW6310

Setting for T ransient

Voltage Range 70~150V 151~300V 301~600V 601~1000V Transient

(on 1V basis)

50~310Vpeak 90~630Vpeak 170~1270Vpeak 340~2000Vpeak

* Default value (or after system reset) : 210V * Vrms value (Vpeak divi ded by √2) is automatically calculated when Vpeak is set.

1 Press the Cursor Keys and select [Transient], and then press the ENTER Key.

2 Press the Cursor Keys and alter the values, and press the ENTER Key

to fix it.

Box with ▲▼ mark appears at the rightmost digit.

Selected threshold value is displayed. Value displayed in parenthesis is a Threshold value divided by √2.

Page 81

4.2.2 Measure ment Setting (QUALITY-Swell, Dip, INT Measurement) KEW6310

KEW6310 4.40

Setting for swell

100 ~ 200% (can be set by 1%)

* Default value (or after system reset) : 110%

1 Press the Cursor Keys and select [Swell], and then press the ENTER Key.

2 Press the Cursor Keys and alter values, and then press the ENTER Key.

Box with ▲▼ mark appears at the rightmost digit.

Selected swell is displayed.

Page 82

KEW6310 4.2.2 Measurement Setting (QUALITY-Swell, Dip, INT Measurement)

4.41 KEW6310

Setting for dip

5~ 100% (can be set by 1%)

* Default value (or after system reset) : 90%

1 Press the Cursor Keys and select [Dip], and then press the ENTER Key.

2 Press the Cursor Keys and alter values, and then press the ENTER Key.

Lower limit varies depending on the sel ected re fere nce vo lt a ge .

● 70 ~ 150V : percentage to obtain values of 7.5 or more

● 151 ~ 300V : percentage to obtain values of 15.0 or more

● 301 ~ 600V : percentage to obtain values of 30.0 or more

● 601 ~ 1000V : percentage to obtain values of 50.0 or more

Box with ▲▼ mark appears at the rightmost digit.

Selected dip is displayed.

Page 83

4.2.2 Measure ment Setting (QUALITY-Swell, Dip, INT Measurement) KEW6310

KEW6310

4.42

Setting for int (short interruption)

5 ~ 98% (can be set by 1%)

* Default value (or after system reset) : 10%

1 Press the Cursor Keys and select [Short interruption], and then press the ENTER Key.

2 Press the Cursor Keys and alter values, and then press the ENTER Key.

Lower limit varies depending on the selected reference voltage. Alter the reference voltages to change the lower limit.

Box with ▲▼ mark appears at the rightmost digit.

Selected int value is displayed.

Page 84

KEW6310 4.2.2 Measurement Setting (QUALITY-Swell, Dip, INT Measurement)

4.43 KEW6310

Setting for hysteresis

1 ~ 10% (can be set by 1%)

* Default value (or after system reset) : 5%

1 Press the Cursor Keys and select [Hysteresis], and then press the ENTER Key.

2 Press the Cursor Keys and alter values, and then press the ENTER Key.

Box with ▲▼ mark appears at the rightmost digit.

Selected hysteresis is displayed.

Page 85

4.2.2 Measure ment Setting (QUALITY-Swell, Dip, INT Measurement) KEW6310

KEW6310 4.44

Setting for trigger point

Trigger to sta rt and stop re cording , w hen a preset th resh old is exce eded , is decide d ba sed o n the nu mber of recorded data.

Past: 0 ~ 200 (can be set by 1) Next : 200 ~ 0 (can be set by 1)

* Default value (or after system reset) : 100

Example of Trigger Pint Setting:

Setting item e.g.

Reference voltage 100V Swell 110% Hysteresis 1% Trigger point Past: 100, Next: 100

Start o f swell

End of swell

100％ (reference voltage

110％ (Swell)

109% (110% - 1%)

total 201 data pts total 201 data pts

100 data pts

100 data

pts

Trigger

Point

100 data pts

100 data

pts

Trigger

Point

Duration

Page 86

4.2.2 Measure ment Setting (QUALITY-Swell, Dip, INT Measurement) KEW6310

4.45 KEW6310

1 Press the Cursor Keys and select [Trigger point], and then press the ENTER Key .

2 Press the Cursor Keys and alter values, and then press the ENTER Key.

When setting a trigger point for “Past”, the point for “Next” is automatically decided. (total 200 data pts)

Box with ▲▼ mark appears at the rightmost digit.

Selected trigger point is displayed.

Page 87

KEW6310 4.2.2 Measurement Setting (QUALITY-Swell, Dip, INT Measurement)

KEW6310 4.46

Page 88

4.2.2 Measure m ent Setting (QUALITY-Transient Measurement) KEW6310

4.47 KEW6310

Setting for transient measurement

For the details of Transient Measurement, refer to “11.3 Transient measurement” in this manual.

Setting Items

Interval*1 set interval time V Range : select a base V oltage Range(150～1000V) Threshold value : set Vpeak against Voltage Range(50～2000Vpeak) Hysteresis : set a hystereis in percentage against Voltage Range(1～10％) Trigger point : set a number of data save point prior to / following an event of trigger

* Selectable range for threshol d (Vpeak) is au tomati cally di spl ay ed w hen sele cting Voltage Range (V). *1 Flicker measurement function is only available with ver.2.00 or later .

Start

Past 100 data pts

201 data pts

recorded

Trigger

reshold

110% Vpeak

100%

(Reference

voltage)

Next 100 data pts

Peak (max)

Page 89

KEW6310 4.2.2 Measurement Setting (QUALITY-Transient Measurement)

KEW6310 4.48

Setting for interval

* Default value (or after system reset) : 30 min * Setting procedure is same to that for interval Setting for W/ Wh/ DEMAND.Refer to the procedure described in

the preceding pages.

Setting for voltage range

150/ 300/ 600/ 1000V

* Default value (or after system reset) : 1000V

1 Press the Cursor Keys and select [V Range], and then press the ENTER Key.

2 Press the Cursor Keys and select a Voltage Range and then press the ENTER Key.

Drop down list appears.

Selected Voltage Range is displayed.

Page 90

4.2.2 Measure m ent Setting (QUALITY-Transient Measurement) KEW6310

4.49 KEW6310

Setting for threshold

Voltage Range 150V 300V 600 V 1000V Threshold

(on 1V basis)

50~310Vpeak 90~630Vpeak 170~1270Vpeak 340~2000Vpeak

* Default value (or after system reset) : 1415V * Vrms value (Vpeak divi ded by √2) is automatically calculated when Vpeak is set.

1 Press the Cursor Keys and select [Threshold Value], and then press the ENTE R Key.

2 Press the Cursor Keys and alter the values, and press the ENTER Key

to fix it.

Box with ▲▼ mark appears at the rightmost digit.

Selected threshold value is displayed. Value displayed in parenthesis is a threshold value divided by √2.

Page 91

KEW6310 4.2.2 Measurement Setting (QUALITY-Transient Measurement)

KEW6310 4.50

Setting for hysteresis

1 ~ 10% (can be set by 1%)

* Default value (or after system reset) : 5%

* Setting procedure is same to that for Hysteresis Setting for Swell, Dip, Int measurement.

Refer to the procedure described in the preceding pages.

Setting for trigger point

Past: 1 ~ 200 (can be set by 1) Next : 200 ~ 0 (can be set by 1)

* Default value (or after system reset) : 100

* Trigger to st art and stop reco rding when a prese t thresho ld exce eded w ill b e decide d base d on the number of recorded data.

* Setting procedure is same to that for Trigger Point Setting for Swell, Dip, Int measurement. Refer to the procedure described in the preceding pages.

Page 92

4.2.2 Measure m ent Setting (QUALITY-Inrush Current Measurement) KEW6310

4.51 KEW6310

Setting for Inrush Current Measurement

For the details of Inrush Current, refer to “11.4 Inrush Current Measurement” in this manual.

Setting Items

Interval*1 set interval time Clamp sensor : refer to Basic setting A Range : refer to Basic setting Reference current : select a Current Range of reference Filter : refer to Basic setting Threshold value : set in percentage against reference current Hysteresis : set in percentage against reference current Trigger Point : set a number of data save point prior to / following an event of trigger

* Selectable range for reference current (A/mA) is automatically displayed after sel ecti ng a Cu rrent Range for 1ch at Basic setting.*1 Flicker measurement function is only available with ver.2.00 or later.

Setting for interval

* Default value (or after system reset) : 30 min * Setting procedure is same to that for interval Setting for W/ Wh/ DEMAND.Refer to the procedure described in

the preceding pages.

Setting for referent current

Current Range Selectable range Resolution

100mA 10 ~ 100mA 0.1mA 500mA 50 ~ 500mA 0.1mA

1A 0.1 ~ 1A 0.001A

5A 0.5 ~ 5A 0.001A 10A 1 ~ 10A 0.01A 20A 2 ~ 20A 0.01A 50A 5 ~ 50A 0.01A

100A 10 ~ 100A 0.1A 200A 20 ~ 200A 0.1A

500A 50 ~ 500A 0.1A 1000A 100 ~ 1000A 1A 3000A 300 ~ 3000A 1A

* When “AUTO” is selected as a Current Range for A1, the max Range of Clamp

sensor is set automatically .

* Selectable range is within 10 to 100% of Cu rren t Ran ge.

Page 93

KEW6310 4.2.2 Measurement Setting (QUALITY-Inrush Current Measurement)

KEW6310 4.52

1 Press the Cursor Keys and select [A_Referene], and then press the ENTER Key.

2 Press the Cursor Keys and alter the values, and press the ENTER Key to fix it.

Setting for Threshold

100 ~ 200% (can be set by 1%)

* Default value (or after system reset) : 110% * Setting procedure is same to that for Threshold Setting for Swell, Dip, int measurement. Refer to the procedure described in the preceding pages.

Setting for hysteresis

1 ~ 10% (can be set by 1%)

* Default value (or after system reset) : 5% * Setting procedure is same to that for Hysteresis Setting for Swell, Dip, Int measurement.

Refer to the procedure described in the preceding pages.

Setting for trigger point

Past: 0 ~ 200 (can be set by 1) Next : 200 ~ 0 (can be set by 1)

* Default value (or after system reset) : 100 * Trigger to st art and stop reco rding , when a preset thresho ld exce eded , w ill be decid ed ba sed on the number of recorded data. * Setting procedure is same to that for Trigger Point Setting for Swell, Dip, Int measurement. Refer to the procedure described in the preceding pages.

Box with ▲▼ mark appears at the rightmost digit.

Selected reference current is displa

ed.

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4.2.2 Measurement Setting (QUALITY-Voltage Unbalance Ratio KEW6310

4.53 KEW6310

Setting for unbalance rate measurement

For the details of Voltage Unbalance Rate Measurement, refer to “11.5 Unbala nc e Ra te ” in this manual.

Setting Items

Interval : set interval time

Output threshold

set threshold for the output of voltage unbalance rate

Setting for interval

* Default value (or after system reset) : 30 min * Setting procedure is same to that for interval Setting for W/ Wh/ DEMAND.Refer to the procedure described in

the preceding pages.

Setting for output threshold

1 ~ 20% (can be set by 0.1%)

* Default value (or after system reset) : 3%

1 Press the Cursor Keys and select [Output Threshold], and then press the ENTER Key.

2 Press the Cursor Keys and alter values, and then press the ENTER Key.

Box with ▲▼ mark appears at the rightmost digit.

Selected output threshold is displayed.

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KEW6310 4.2.2 Measurement Setting (QUALITY-Flicker)

KEW6310 4.54

Setting for Flicker measurement

For the details of Flicker measurement, refe r to “11.6 Flicker measurement” in this manual.

Setting Items

V Range ： select a desirable V olt age Range（150 ～600V） Filter

：

select a visibility filter for flicker calculation

Output item

：

set conditions for output to Output terminal

Output Threshold

：

select a threshold value for Output terminal

Setting for voltage range

150／300／600V

* Default value (or after system reset) : 300V

* Setting procedure is same to that for Voltage Range described in the clause of “Setting for Transient

measurement“. Refer to the procedure described in the preceding pages.

Setting for Filter

Follow the procedure below and select any fil ter fa ctor.

230V／120V／100 V

* Default value (or after system reset) : 230V

1 Select any desirabe [Filter] with Cursor Key and press the ENTER Key.

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4.2.2 Measure m ent Setting (QUALITY-Flicker) KEW6310

4.55 KEW6310

2 Select a desirable filter factor with Cusor Key and press the ENTER Key .

Setting for Output item

Follow the procedure below to make setting for output items. (conditions for output to Output terminal)

Pst(1min)／Pst／Plt

* Default value (or after system reset) : Pst(1miin) * where :

Output item = Pst, Output threshold = 1.0, threshold check is done when Pst is refreshed (every 10 min)

1 Select any desirable [Output item] with Cursor Key and press the ENTER Key.

2 Select a desirable filter factor with Cusor Key and press the ENTER Key .

Drop down list appears.

Selected filter factor will be displayed .

Drop down list appears.

Selected output item will be displayed.

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KEW6310 4.2.2 Measurement Setting (QUALITY-Flicker)

KEW6310 4.56

Setting for output threshold

0.8～20.0(can be set by 0.1)

* Default value (or after system reset) :1.0 * Setting procedure is same to that for Output Threshold described in the clause of “Setting for Unbalance rate“. Refer to the procedure described in the preceding pages.

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4.2.2 Measure m ent Setting (QUALITY-Capacitance calculation KEW6310

4.57 KEW6310

Setting for capacitance calculation

For the details of unbalance rate Measurement, refer to “11.7 Capacitance Calculation” in this manual.

Setting items

Interval : select interval Target power factor :

simulating power facto r co rr ection w ith ca p a cit or ba nks

Setting for interval

* Default value (or after system reset) : 30 min * Setting procedure is same to that for interval Setting for W/ Wh/ DEMAND.Refer to the procedure described in

the preceding pages.

Setting for target power factor

0.5 ~ 1 (can be set by 0.001)

* Default value (or after system reset) : 1.000

1 Press the Cursor Keys and select [Target PF], and then press the ENTER Key.

2 Press the Cursor Keys and alter values, and then press the ENTER Key.

Box with ▲▼ mark appears at the rightmost digit.

Selected target power factor is displayed.

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KEW6310 4.2.2 Measurement Setting (QUALITY-Capacitance calculation

KEW6310 4.58

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4.2.3 Save Setting KEW6310

4.59 KEW6310

4.2.3 Save Setting

Setting for recording

Manual⇔ Timer

* Default value (or after system reset) : Timer

1 Press the Cursor Keys and select [REC method], and then press the ENTER Key.

2 Press the Cursor Keys and select Manual or Timer, and then press the ENTER Key .

Drop down list appears.

Selected recording meth od is displayed.

Recording start / stop time isn't selectable if Manual recording has been se lected.