KYORITSU 6315 Instruction Manual

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Instruction Manual

Instruction ManualInstruction Manual

Power Quality Analyzer

KEW6315

Page 2

Page 3

Contents KEW6315

Contents ·································································································· 1

Unpacking Procedure ················································································· 5

Safety warnings ························································································· 8

Chap. 1 Instrument overview ······································································ 11

1.1 Functional overview ····································································· 11

1.2 Features ···················································································· 13

1.3 Constructional drawing ································································· 14

1.4 Steps for measurement ································································ 15

Chap.2 Instrument layout ··········································································· 16

2.1 Display (LCD)/ Keys ····································································· 16

2.2 Connector ·················································································· 17

2.3 Side face ··················································································· 18

2.4 Voltage test lead and Clamp sensor ················································ 19

Chap.3 Basic operations ··········································································· 20

3.1 Key operation ············································································· 20

3.2 Icons on the LCD ········································································ 21

3.3 Symbols on the LCD ···································································· 22

3.4 Backlight and Contrast Adjustment ·················································· 22

3.5 Screens ····················································································· 23

 Inst/ Integration/ Demand ························································· 23

 Vector ·················································································· 24

 Waveform ············································································· 24

 Harmonic Analysis ·································································· 25

 Power quality ········································································ 26

 Settings ················································································ 26

Chap.4 Getting started ·············································································· 27

4.1 Preparation ················································································ 27

 Putting Input terminal plate on the Input terminal ·························· 27

 Attaching Markers to Voltage test leads and Clamp sensors ··········· 28

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KEW6315 Contents

4.2 Power Supply ············································································· 29

 Battery ················································································· 29

 Battery Mark on the LCD/ Battery level ······································· 30

 How to install batteries ···························································· 31

 Power cord connection ···························································· 31

 Power supply rating ································································ 32

4.3 Placing / removing SD card ··························································· 33

 Inserting SD card ··································································· 34

 Removing SD card ································································· 34

4.4 Voltage test leads and Clamp sensor connection ·························· 35

4.5 Start KEW6305 ······································································ 36

 Start-up Screen ····································································· 36

 Cautionary message ······························································· 36

4.6 Recording procedures ····························································· 37

 Start of recording ··································································· 37

 End of recording ···································································· 38

 Start measurement with “Quick start guide” ······························· 39

Chap.5 Settings ······················································································· 47

5.1 List of setting items ······································································ 47

5.2 Basic setting ··············································································· 48

 Settings of wiring system ························································· 49

 Wiring connection ·································································· 51

 Settings of voltage measurement ·············································· 53

 VT/CT ·················································································· 54

 Settings of current measurement ··············································· 56

 Settings of External input terminal/ reference frequency ················· 58

5.3 Measurement setting ···································································· 59

 Settings of demand measurement ············································· 59

 Outline of demand measurement concept ··································· 62

 Settings for Harmonic analysis ·················································· 63

 Threshold setting for Power quality (Event) ································· 65

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Contents KEW6315

 Filter setting for Flicker measurement ········································· 69

 Target power factor for Capacitance calculation ··························· 70

5.4 Recording setting ········································································ 71

 Settings for recording items ······················································ 72

 Saved items ·········································································· 73

 Recording method ·································································· 74

 Possible recording time ··························································· 76

5.5 Other settings ············································································· 77

 Settings for system environment ··············································· 77

 KEW6315 Setting ··································································· 79

5.6 Saved data ················································································· 82

 To delete, transfer or format the recorded data ····························· 82

 Type of the saved data ···························································· 87

 KEW6315 settings and Data loading ·········································· 89

Chap. 6 Displayed items ············································································ 92

6.1 Instantaneous value “W” ······························································· 92

 List display of the measured values ··········································· 92

 Zoom display ········································································· 96

 Displaying Trend graph ··························································· 97

 Changing displayed items and display position ···························· 99

6.2 Integration value “Wh” ································································ 100

6.3 Demand ·················································································· 102

 Showing the measured values ················································ 102

 Shifts in specific period ·························································· 103

 Demand change ·································································· 104

6.4 Vector ····················································································· 105

6.5 Waveform ················································································ 107

6.6 Harmonics ··············································································· 108

 Displaying harmonics on the bar graph ····································· 108

 Displaying the list of harmonics ················································ 112

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KEW6315 Contents

6.7 Power quality ············································································· 114

 Factors impair power quality and symptoms ······························· 114

 Displaying recorded events ····················································· 116

 Displaying measured flicker values in list form ··························· 120

 Displaying trend graph of Pst, 1min ········································· 121

 Displaying changes of Plt ······················································· 122

Chap.7 Other functions ··········································································· 123

Chap.8 Device connection ······································································· 125

8.1 Data transfer to PC ···································································· 125

8.2 Using Bluetooth® function ···························································· 126

8.3 Signal control············································································ 126

 Connection to input/ output terminals ······································· 126

8.4 Getting power from measured lines ··············································· 128

Chap. 9 PC software for setting and data analysis ········································ 129

Chap.10 Specification ············································································· 130

10.1 Safety requirements ··································································· 130

10.2 General specification ·································································· 130

10.3 Measurement specification ·························································· 133

 Measured items and the number of analysis points ····················· 133

 Items measured at Instantaneous measurement ························ 134

 Items to be calculated ··························································· 137

 Items measured at Integration measurement ····························· 140

 Items measured at Demand measurement ································ 143

 Items measured at Harmonics measurement ····························· 144

 Items measured at Power quality measurement ························· 149

10.4 Specification of Clamp sensor ······················································ 152

Chap. 11 Troubleshooting ········································································ 157

11.1 General troubleshooting······························································ 157

11.2 Error messages and actions ························································ 158

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Unpacking Procedure KEW6315

Unpacking procedure

We thank you for purchasing our Power Quality Analyzer “KEW6315”. Please

check the contents and instrument before use.

 Items listed below are included with the standard set:

1 Main unit KEW6315

:1 pce

MODEL7255 :1 set

2 Voltage test lead

*red, white, blue, black: 1 pce for each

(with alligator clips)

3 Power cord MODEL7169 :1 pce

4 USB cord MODEL7219 :1 pce

5 Quick manual 1 pce

6 CD-ROM 1 pce

7 Battery Alkaline size AA battery LR6: 6 pcs

8 SD card M-8326-02 :1 pce (2GB)

9 Carrying case MODEL9125 :1 pce

10 Input terminal plate 1 pce

8-color x 4pcs each (red, blue, yellow,

11 Cable marker

green, brown, gray, black, white)

Optional parts

12 Clamp sensor Depending on model purchased

Instruction manual for

1 pce

Clamp sensor

14 Magnetic carrying case MODEL9132

15 Power supply adapter MODEL8312(CAT. III 150V, CAT. II 240V)

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KEW6315 Unpacking Procedure

1. Main unit 2. Voltage test lead 3. Power cord 4.USB cord

5. Quick manual 6.CD-ROM 7. Battery 8. SD card 9. Carrying case

10. Input terminal plate 11. Cable marker

2GB

M-8326-02

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Unpacking Procedure KEW6315

12. Clamp sensor

13. Instruction manual for Clamp sensor

14. Magnetic carrying 15. Power supply adapter

case

(depending on model purchased)

50A Type(ø24mm) M-8128

100A Type(ø24mm) M-8127

200A Type(ø40mm) M-8126

500A Type(ø40mm) M-8125

1000A Type(ø68mm) M-8124

3000A Type(ø150mm) M-8129

1000A Type(ø110mm) M-8130

10A Type(ø24mm) M-8146

10A Type(ø40mm) M-8147

10A Type(ø68mm) M-8148

1A Type(ø24mm) M-8141

1A Type(ø40mm) M-8142

1A Type(ø68mm) M-8143

 Storage

Store the items as shown below after use.

● 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.

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KEW6315 Safety warnings

Safety warnings

This instrument has been designed, manufactured and tested according to IEC 61010-1: Safety requirements for Electronic Measuring apparatus, and delivered in the best condition after passing quality control tests.

This instruction manual contains warnings and safety procedures which have to be observed by the user to ensure safe operation of the instrument and to maintain it in safe condition. Therefore, read through these operating instructions before starting to use the instrument.

WARNING

- For about Instruction manual -

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

● Keep the manual at hand to enable quick reference whenever necessary.

● 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 after reading this instruction manual.

● 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. Kyoritsu assumes no responsibility for damage and injury caused by misuse or not following the instructions in the manual.

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

WARNING

CAUTION

Measurement Category

To ensure safe operation of measuring instruments, IEC 61010 establishes safety standards for various electrical environments, categorized as O to CAT.IV, and called measurement categories. Higher-numbered categories correspond to electrical environments with greater momentary energy, so a measuring instrument designed for CAT.III environments can endure greater momentary energy than one designed for CAT.II.

O : Circuits which are not directly connected to the mains power supply. CAT.II : 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

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

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

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

primary overcurrent protection device (distribution panel).

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Safety warnings KEW6315

the

DANGER

 The instrument is to be used only in its intended applications or conditions. Otherwise, safety functions equipped with the instrument will not work, and instrument damage or serious personal injury may occur. Verify proper operation on a known source before taking action as a result of the indication of instrument.

 With attention to the measurement category to which the object under test belongs, do not make

measurements on a circuit in which the electrical potential exceeds the following values.

* 300V AC for CAT. IV, 600V AC for CAT. III, 1000V AC for CAT. II  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 is wet.

- Measurement -

 Do not exceed the maximum allowable input of any measuring range.  Never open the Battery compartment cover during a measurement.

- Battery -

 Do not try to replace batteries during a measurement.  Brand and type of the batteries to be used should be harmonized.

- Power cord -

 Connect the Power cord to an outlet.  Use only the Power cord supplied with this instrument.

- Power supply connector -

 Never touch the Power supply connector although it is insulated while the instrument is operating with

batteries.

- Voltage test leads -

 Use only the ones supplied with this instrument.  Choose and use the test leads and caps that are suitable for the measurement category.  When the instrument and the test lead are combined and used together, whichever lower category

either of them belongs to will be applied. 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 desired parameters.  Connect Voltage test leads to the instrument first, and only then connect them to the circuit under test.  Keep your fingers behind the barrier during a measurement. Barrier: provides protection against electrical shock and ensuring the minimum required air and

creepage distances.  Never disconnect the voltage test leads from the connectors of the instrument during a measurement

(while the instrument is energized).  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 current rating of the test lead and the maximum rated voltage are not

exceeded.  Do not connect a Clamp sensor unless required for measuring the desired parameters.  Connect sensors to the instrument first, and only then connect them to the circuit under test.  Keep your fingers behind the barrier during a measurement. Barrier: provides protection against electrical shock and ensuring the minimum required air and

creepage distances.

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KEW6315 Safety warnings

 Never disconnect sensors from the connectors of the instrument 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.

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.  Do not apply currents or voltages for the Clamp sensors or Voltage test leads while the instrument

is off.  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.  Insert an SD card to the slot with the top side turned up. If the card is inserted up-side-down, the SD

card or the instrument may be damaged. Confirm the

 While using an SD card, do not replace or remove the card. (The symbol blinks while accessing

SD card.) Otherwise, the saved data in the card may be lost or the instrument may be damaged.

- Clamp sensor -

 Do not bend or pull the cable of the Clamp sensor.

- Treatment after use -

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

the instrument.  Remove the batteries if the instrument is to be stored and will not be in use for a long period.  Remove the SD 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 or water 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.

Meaning of symbols on the instrument:

User must refer to the explanations in the instruction manual.

Instrument with double or reinforced insulation

～～～～

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(Functional) Earth terminal

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1.1 Functional overview

/ max/ min instantaneous values of

power.

Integration values also can be viewed by switching screens.

Moreover, demand values with the preset target value can

(P.

Vector and Wiring check

Vectors of voltage and current per CH are displayed

on a graph. Executing wiring check function is

possible from this screen.

See “

Chap. 1 Instrument overview

” to start

up setting by

for further details.

1.1 Functional overview

Start/ Stop

Choose either “Quick start guide” or “Start now recording. Can do simple and fast startselecting “Quick start guide”.

See “4.6 Recording procedures” (P.37)

Inst/ Integration/ Demand

Display the avg voltage/ active power/ apparent power/ reactive

KEW6315

current/

also be checked.

See “6.1 Inst “W” (P.92), 6.2 Integration “Wh”

6.3 Demand (P.102) ” for further details.

100),

6.4 Vector” (P.105) for further details.

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KEW6315

Waveform

Waveforms

Waveform

Harmonic Analysis

Harmonic components of voltage and current per CH are

displayed on a graph.

See “

1.1 Functional overview

graph.

See “6.5

of voltage and current per CH are displayed on a

” (P.107) for further details.

6.6. Harmonics” (P.108) for further details.

Setting (SET UP)

Adjust settings of KEW6315 and measurements.

See “5. Settings” (P.47) for further details.

KEW6315 -

Power Quality (QUALITY) event

Display voltage swell, dip, int, transient, inrush current and flicker.

See “6.7. Power Quality” (P.114) for further details.

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1.2 Features KEW6315

1.2 Features

This is a Clamp-type 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 analysis of harmonics

and events related to power quality and for the simulation of power factor correction with capacitor banks.

Moreover, it can display waveforms and vectors of voltage and current. Data can be saved either on the

SD card or in the internal memory, and can be transferred to PC via USB, or in real time via Bluetooth®

communication.

Safety construction

Designed to meet the international safety standard IEC 61010-1 CAT.IV 300V/ CAT.III 600V/ CAT.II 1000V.

Power quality analysis

KEW6315 is designed to meet the international standard IEC61000-4-30 Class S and can measure frequency and r.m.s. voltage with high accuracy, and also can analyze harmonics. Moreover, it can measure swell, dip, interruption, transient, inrush current and flicker, gapless, all at once.

Power measurement

KEW6315 measures active/reactive/apparent power, electrical energy, power factor, r.m.s. current, phase angle and neutral current simultaneously.

Wiring configuration

KEW6315 supports: Single-phase 2-wire (4-system), Single-phase 3-wire (2-system), Three-phase 3-wire

(2-system) and Three-phase 4-wire.

Demand measurement

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.

Saving data

KEW6315 is endowed with a logging function with the preset recording interval. Data can be saved by manual operation or by specifying date & time. Screen data can be saved by using the Print Screen function.

Dual power supply system

KEW6315 operates either with AC power supply or with batteries. Size AA alkaline dry-cell batteries and size AA Ni-MH rechargeable batteries can both be used. To charge size AA Ni-MH rechargeable batteries, use the charger which is manufactured by the same company as the batteries. In the event of power interruption, while operating with AC power supply, power to the instrument is automatically restored by the batteries in the instrument.

Large display

TFT color display with large screen.

Light & compact design

Clamp sensor type, compact and light weight design.

Application

Data in the SD card or the internal memory can be saved in PC via USB. Analysis of the downloaded data and instrument settings are possible by using the special software “KEW Windows for KEW6315”. Real-time communication with android devices is available via Bluetooth®.

Input/ Output function

Analog signals from thermometers or light sensors can be measured simultaneously with electrical power data via 2 analog inputs (DC voltage); when any events related to power quality occur, signals can be transmitted to alarm devices via one digital output.

- 13 - KEW6315

Page 16

KEW6315

1.3 Constructional drawing

1.3 Constructional overview

Current input

AC Voltage input

Power cord

Digital output (1 ch) to recorder or alarm

Size AA alkaline dry-cell battery (LR6) or Size AA Ni-MH rechargeable battery

KEW6315 -

Analog input (2 ch) from thermometer

or illuminometer

USB

SD card

Page 17

1.4 Steps for measurement KEW6315

1.4 Steps for measurement

Read through the operating instructions described in “Safety

warnings” (P.8) before starting to use the instrument.

Preparation

Chap. 4: Getting started (P.27)

Cord and Sensor Connection

Clause 4.4: Voltage test leads and Clamp sensor connection (P.35)

Turning on the instrument.

Clause 4.5: Start KEW6315 (P.36)

Making basic settings.

Clause 5.2: Basic setting (P.48)

Wiring

Clause 5.2: Basic setting – Wiring (P.51)

Reading the setup data

Clause 5.6: Saved data (P.82)

Wiring check

Clause 6.4: Vector (P.105)

Advanced setting and data save method

Clause 5.3: Measurement setting (P.59)/ 5.4: Recording setting (P.71)

Confirming the measured values.

Clause 6.1: Inst value [W] (P.92)/ 6.4: Vector (P.105)

Start/ stop recording

Clause 4.6: Recording procedures (P.37)

Confirming the measured data.

Chap. 6: Displayed items (P.92)

Disconnect the cords and sensors from the measurement line, and turn off

the instrument.

Data analysis on PC

Clause 8.1: Data transfer to PC (P.125)

Chap. 9: PC software for setting and data analysis (P.129)

- 15 - KEW6315

Page 18

KEW6315 2.1 Display (LCD)/ Keys

Chap.2 Instrument layout

2.1 Display (LCD)/ Keys

Display (LCD)

Keys

KEW6315 - 16 -

Page 19

2.2 Connector KEW6315

2.2 Connector

AC Voltage Input Terminal

(VN, V1, V2, V3)

Current Input Terminal

(A1, A2, A3, A4)

Power Connector

AC Voltage Input

Wiring configuration

Terminal

Terminal Cover

Current Input

Single-phase 2-wire (1-system) 1P2W×1 VN, V1 A1

Single-phase 2-wire (2-system) 1P2W×2 VN, V1 A1, A2

Single-phase 2-wire (3-system) 1P2W×3 VN, V1 A1, A2, A3

Single-phase 2-wire (4-system) 1P2W×4 VN, V1 A1, A2, A3, A4

Single-phase 3-wire (1-system) 1P3W×1 VN, V1, V2 A1, A2

Single-phase 3-wire (2-system) 1P3W×2 VN, V1, V2 A1, A2, A3, A4

Three-phase 3-wire (1-system)

Three-phase 3-wire (2-system)

Three-phase 3-wire

3A 3P3W3A V1, V2, V3 A1, A2, A3

3P3W×1 VN, V1, V2 A1, A2

3P3W×2 VN, V1, V2 A1, A2, A3, A4

Terminal*

Three-phase 4-wire

3P4W×1 VN, V1, V2, V3 A1, A2, A3

* Measurements of r.m.s. values and harmonics are possible at the Current terminals, which are

not used for wiring connection.

- 17 - KEW6315

Page 20

KEW6315 2.3 Side face

Analog input/ Digital output

2.3 Side face

< When the Connector cover is closed. >

SD slot cover

Analog input/ Digital output cover

< When the Connector cover is opened. >

SD card slot

USB port cover

USB port

KEW6315 - 18 -

terminals

Page 21

2.4 Voltage test lead and Clamp sensor KEW6315

2.4 Voltage test lead and Clamp sensor

* Attached to the top part of voltage test lead

Barrier is a mechanical safety part and provides protection against electrical shock and ensuring the

minimum required air and creepage distances. Keep your fingers and hands behind the barrier during a

measurement.

Barrier

- 19 - KEW6315

Page 22

KEW6315 3.1 Key operation

3 Basic operations

3.1 Key operation

Function Key

Execute the displayed function.

PRINT SCREEN Key

Save the displayed screen as BMP file.

DATA HOLD Key/ KEY LOCK Key

Hold the readings on the display.

* Measurement continues while the

readings are being held on the display.

Long press (at least 2 sec) disables

KEY

LOCK

all Keys to prevent operational errors. Another long press (at least 2 sec) is required to restore the disabled Keys.

LCD Key

Turn on/ off the backlight. Long press (at least 2 sec) changes the brightness and contrast.

Cursor Key

Select items or switch displays.

KEW6315 - 20 -

START/ STOP Key

Start/ stop

measurement.

Status LED

Green

Red Blink: Backlight is off.

Light up: Recording& measuring

Blink: Stand-by

W/Wh

Vector View phases.

Waveform

View inst, integration

and demand values.

View voltage/ current

waveforms.

Power Key

Power on/ off.

Menu Key

ENTER Key

Confirm the entries.

ESC Key/ RESET Key

Cancel setting changes and return to

the previous settings.

SETUP Key

Change and confirm: Basic, Measurement, Record-

ing and other settings, and also edit the saved data.

Harmonic

Analysis

Power

Quality

View harmonic voltage, current

and power energy.

View the detailed info about:

swell, dip, int, transient, inrush

current and flicker.

Page 23

3.2 Icons on the LCD KEW6315

3.2 Icons on the LCD

Icon Status

KEW6315 is operating with battery. This icon varies in 4 steps according to the

battery power condition.

KEW6315 is operating with AC power.

Holding the display update.

Keys are locked.

Buzzer is off.

SD card is set and available.

Recording the data on the SD card.

Available free space in the SD card is not enough.

Failed to access to the SD card.

Internal memory is available.

* This icon is displayed when a measurement starts without SD card.

Recording the data in the internal memory.

Available free space in the internal memory is not enough.

Stand-by mode

Recording the measured data.

Capacity of recording media is full.

USB is available.

Bluetooth® is available.

- 21 - KEW6315

Page 24

KEW6315 3.3 Symbols on the LCD

3.3 Symbols on the LCD

V*1

DC1

An*2 Neutral current PA*

WP+

WP-

THD

Pst

(1min)

Phase voltage VL*1 Line voltage A Current

Active power

Power

factor

consumption

regenerating

lagging

leading

Analog input

voltage at 1ch

Active power energy

(consumption)

Active power energy

(regenerating)

Reactive

power

f Frequency

DC2

Analog input

voltage at 2ch

Phase

angle

WS+

WS-

Apparent power energy

(consumption)

Apparent power energy

(regenerating)

lagging

leading

lagging

leading

Voltage/ Current

total distortion factor

Voltage flicker (1 min) Pst

Short term voltage flicker

W screen: Displays of V and VL can be “customized” when “3P4W” is selected.

W screen: “An” is displayed only when “3P4W” is selected.

W screen: Displays of PA and C can be “customized”.

C*3

WQi+

WQc+

Plt

Apparent

power

Capacitance calculation

Reactive power energy

(lagging)

Reactive power energy

(leading)

Long term voltage flicker

3.4 Backlight and Contrast Adjustment

Hold down the “ ” LCD Key at least 2 sec to show the sliding bar to adjust the backlight brightness and

display contrast. Use the Cursor Key to slide the cursor on the bar for the adjustment. Press the ENTER

Key and exit from the adjustment mode. Press the ESC or LCD Key again to cancel the adjustment and exit

from the adjustment mode.

KEW6315 - 22 -

Brightness adjustment

Backlight brightness can be changed by 11 levels.

Contrast adjustment

Contrast can be changed by 11 levels.

Page 25

Inst/ Integration/ Demand

selected items.

(Integration value)

3.5 Screens

KEW6315

Inst/ Integration/ Demand

Switching screens

Press the key to toggle the screens.

W (Inst value)

Customize

Select and change the items to be displayed.

Demand

Zoom and display the

4-split 8

Zoom

split

Changes of measured values are

displayed on a graph.

Trend

23 - KEW6315

Page 26

KEW6315

Diagram of the selected wiring is

Vector

displayed.

Switching screens

Wiring diagram

Wiring check

Checked results will be displayed.

Waveform

Switching screens

KEW6315 -

Page 27

Harmonics

Current

Logarithm

Phase angle

Current

KEW6315

Harmonics

Switching screens

Voltage, Linear, Overall display

List, Rate of content

Power

Zoom

RMS value

Power

25 - KEW6315

Page 28

KEW6315

Power quality

Switching displayed items

Settings

Switching displayed items

Event

Flicker

Toggle the screens with the Cursor Key. (right or left )

KEW6315 -

Page 29

Putting Input terminal plate on the Input terminal KEW6315

4 Getting started

4.1 Preparation 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.

TYPE1

TYPE4

TYPE2

TYPE5

TYPE3

TYPE6

Put a proper Input terminal plate.

Input terminal plate

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

- 27 - KEW6315

Page 30

KEW6315 Attaching Markers to Voltage test leads and Clamp sensors

Attaching 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).

Marker (32 pcs in total)

Attach Markers to the both ends of a Sensor.

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

KEW6315 - 28 -

Page 31

Battery KEW6315

4.2 Power Supply Battery

KEW6315 operates with either an AC power supply or batteries. Capable of performing measurements in

the event of AC power interruption, power to the instrument is automatically restored by the batteries

installed in the instrument. Size AA alkaline dry-cell batteries (LR6) or size AA Ni-MH batteries can both

be used. To charge the rechargeable battery, use the charger which is manufactured by the same company

as the batteries. KEW6315 cannot charge batteries.

* Size AA alkaline dry-cell batteries (LR6) are supplied as accessories.

DANGER

 Never open the Battery compartment cover during a measurement.

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

 Never touch the Power supply connector, although it is insulated, while the instrument is operating with

batteries.

WARNING

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

and that the instrument is switched off when opening the Battery compartment cover for battery

replacement.

CAUTION

 Never mix new and old batteries.

 Install batteries in correct polarity as marked inside the Battery compartment area.

Batteries are not installed in the instrument at the time of purchase. Please insert the supplied batteries

before starting to use 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 will not be in use for a long period. When the instrument is

If an AC supply is interrupted and the batteries have not been inserted, the instrument goes off and all

data may lost.

- 29 - KEW6315

Page 32

KEW6315 Battery Mark on the LCD/ Battery level

Battery Mark on the LCD/ Battery level

Power supply icon changes as follows, and the battery icon varies according to the battery condition.

Power supply icon

battery

Battery level

Possible continuous measurement hours:

- approx 3 hours with size AA alkaline batteries, and

- approx 4.5 hours with size AA Ni-MH (1900mA/h)

batteries.

* These are ref. values with LCD turned off.

Instrument works normally.

* Voltage of full-charged Ni-MH battery is lower than that of

the full-charged alkaline battery, so the level indicator may

not be the same as the one shown to the left even after the

batteries are fully charged.

Measurement continues, but data save is ceased.

(Further data will not be saved, but the data measured before

the battery level drops to the lowest level are saved.)

4-level

KEW6315 - 30 -

Page 33

How to install batteries KEW6315

How to install batteries:

Follow the steps below and install batteries.

Screw

Battery compartment

cover

LR6: Size AA Alkaline battery

1 Disconnect the power cord, voltage test leads and clamp sensors from the instrument, and

power off the instrument.

2 Loosen two Battery compartment cover-fixing screws and remove the Cover.

3 Take out all the batteries.

4 Insert six batteries (Size AA alkaline battery: LR6) in correct polarity.

5 Install the Battery compartment cover and fix it with two screws.

Power cord connection

The following should be checked before the connection.

DANGER

 Use only the Power cord supplied with this instrument.

 Connect the Power cord to a mains outlet. The mains supply voltage must not exceed AC240V.

(max rated voltage of supplied 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. The cord should be firmly connected.

 Never attempt to make measurement if any abnormal conditions are noted, such as a broken cover and

exposed metal parts.

 When the instrument is not in use, disconnect the Power 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.

- 31 - KEW6315

Page 34

KEW6315

Follow the procedure below, and connect the Power cord.

powered off.

Connect the Power cord to the Power connector on the instrument.

Connect another end of the Power cord to the outlet.

2 seconds after it is connected to

Power supply rating

1 Confirm that the instrument is

3 *

* Getting KEW6315 started is possible

does not work in this period.

a power source. The Key

Power supply rating

Rating of power supply is as follows.

Rated supply voltage

Rated power supply

frequency

Max power consumption

100 to 240V AC (±10%)

45 to 65Hz

7VA max

KEW6315 -

Page 35

4.3 Placing / removing SD card KEW6315

4.3 Placing / removing SD card

Check the following points before using SD card.

CAUTION

 Follow the instructions described in “Inserting SD card” and insert the SD card to the slot with the top side

turned up. If the card is inserted up-side-down, the SD card or the instrument may be damaged.

 While using an SD card, do not replace or remove the card. (The symbol blinks while accessing SD

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

 The indicator “ “ blinks during record. Do not remove the SD card. Otherwise, the saved data

or the instrument may be damaged. Do not remove the card until the record ends and the pop-up message

“Stop recording.” disappears.

Notes:

 Newly purchased SD cards must be formatted with KEW6315 before use. Data might not be successfully saved

on SD cards that are formatted with a PC. For the details, please refer to “Format” (P.86) in this manual.

 If the SD card has been frequently used for a long period, the life of the flash memory may be expired and further

data may not be saved on it. In such a case, please replace the card with a new one.

 The data in the SD card might be damaged or lost by accident or failure. It is recommended to backup the

recorded data periodically. Kyoritsu will not be liable for any loss of data or any other damages or losses.

- 33 - KEW6315

Page 36

KEW6315 Inserting SD card

Inserting SD card:

1 Open the Connector cover.

2 Insert the SD card into the SD card slot with the topside turned up.

3 Then close the cover. Please use the instrument with the Connector cover closed unless it is not

necessary.

Removing SD card:

1 Open the Connector cover.

2 Gently push the SD card towards inside, and then the card comes out.

3 Remove the card slowly.

4 Then close the cover. Please use the instrument with the Connector cover closed unless it is not

necessary.

Connector cover

SD card

KEW6315 - 34 -

Page 37

4.4 Voltage test leads and Clamp sensor connection KEW6315

4.4 Voltage test leads and Clamp sensor connection

Check the following before connecting the test leads and sensors.

DANGER

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

 Use the dedicated Clamp sensors for this instrument, and confirm that the measurement 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 desired

parameters.

 Connect the test leads and sensors to the instrument first, and only then connect 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. The cord should be firmly connected.

 Never attempt to make measurement if any abnormal conditions are noted, such as a broken Cover and

exposed metal parts.

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 lead to the AC Voltage input terminal on the instrument.

3 Connect the appropriate Clamp sensor 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.

Match the

Number of Voltage test leads and Clamp sensors to be used will be different depending on the wiring

configuration under test. For further details, refer to “Wiring diagrams” (P.50) in this manual.

- 35 - KEW6315

Page 38

KEW6315

the following screen is displayed on the LCD. To power off the

at least 2 seconds.

Model name and software version will be displayed upon powering on the instrument.

started properly, and refer to

the instrument, the screen displayed last

If the connected Clamp sensors are not the same

rs will be displayed for 5 sec; but the settings will not be updated

and re

the previous settings

4.5 Start KEW6315

Start-up Screen

Hold down the POWER key until

Start-up Screen

instrument, hold down the POWER key

Stop using the instrument if it does not get

(P.157) in this instruction manual.

2 If this is not the first time starting

operation will appear.

Cautionary message

of the connected senso

automatically. Press the key

KEW6315 retains and adopts

“Chap. 11 Troubleshooting”

from the previous

ones used during the previous test, the list

-detect the sensors or modify the settings directly.

if no sensor is connected.

KEW6315 -

Page 39

Start of recording

Choose either “Quick start guide” or “Start now” to start recording.

Only the settings of wiring and recording are included in the

advanced settings if necessary. When the

settings is required, select

preparations

“Quick start guide” or “Start now”.

4.6 Recording procedures

Start of recording

Press the Key.

KEW6315

One can do the simple and fast start-up by

selecting “Quick start guide”.

Press the key and adjust

already done, or no change of

measurement, ensure all safety and necessary

Move the blue highlight to

“Quick start guide”.

necessary settings are

“Start now” to start recording. Before starting

have been checked.

Confirm. Cancel.

37 - KEW6315

Page 40

KEW6315 End of recording

Data no.

Recording method

be recorded

End of recording

Press the Key.

Items to

Check the information about recording, or stop the recording.

Items displayed on the LCD

Data no. Data no. of the recorded data. It is also used as a folder name at data saving.

Elapsed time The time that elapses while recording.

Manual Show the ”Recording start date and time”.

Recording method

Save to Data location to save the data.

Items recorded Items being recorded.

Constant rec. Show the ”Recording start/ end date and time”.

Time period rec.

Show the ”Recording start date and time”, “Recording Period”

and “Recording Time”.

Move the blue highlight to “Cancel” or “Stop”. Confirm. Cancel.

KEW6315 - 38 -

Page 41

Start measurement with “Quick start guide”

with “Quick start guide”

Select the item you want to record.

The number of selected items will have effect on file size and

also on max recording time.

Check the Test environment.

diagnosis, wiring check and detection of connected

* It is recommended to do this test for ensuring the testing

conditions are correct. It takes about 10 seconds.

See P.

KEW6315

Start measurement

Select the

recording item

(3) Connect to the circuit to be tested.

* Read and follow the safety precautions

described in the instruction manual.

(4)(5)

* Self-

sensors will be performed in this test.

Select the

wiring system

See P.27.

(1)

Confirm the

connections

37.

(2) Select the wiring system to be

measured.

* Select a proper wiring system for accurate

measurements.

See P.41.

See P.42.

Check the test

environment

39 - KEW6315

Page 42

KEW6315

ethod

Select a recording interval.

* Selecting

case,

If you want to terminate the recording, press the

See P.

Start measurement with “Quick start guide”

Select the

rec. interval

Select the

rec. m

Check the

selected method

Start

recording

a short interval gets the file size large. In this

a long period recording cannot be performed.

76.

(6)

(7)(8)(9) Select a recording method.

See P.45.

(10) Prepared. Recording will start.

The mark “ REC ” will appear on the screen

when the recording starts, and the green LED

(status indicator) lights up.

“ ” button and follow the instructions

displayed on the screen.

KEW6315 -

Page 43

Start measurement with “Quick start guide” KEW6315

Power

supply

(2) Wiring system

Any of the following can be selected.

Load

(1)

1P2W

Load

(2)

1P2W

Load

(3)

1P2W

Load

(4)

1P2W×1

1P2W×2

1P2W×3

1P2W×4

1P2W

supply

Power

Load

(1)

1P3W

1P3W×1

1P3W×2

Load

(2)

1P3W

L1(R)

supply

Power

L2(S)

L3(T)

L1(R)

Power supply

L2(S)

L3(T)

N N

L1(R)

L2(S)

L3(T)

L1(R)

L2(S)

L3(T)

L1(R)

L2(S)

L3(T)

Load

(1)

3P3W

Load

(2)

3P3W

Load

3P4W

3P3W×1

3P3W×2

3P4W

L1(R)

supply

Power

L2(S)

L3(T)

Orientation of Clamp sensor

Power source

L1(R)

L2(S)

L3(T)

Load

3P3W

3P3W3A

Arrow mark: Point towards load side.

Reverse clamping switches the symbols (+/-) for active power (P).

- 41 - KEW6315

Page 44

KEW6315

result will be

Operating condition of the instrument system will

(4)(5) Test Environment Check

Switching screens

Test environment check

Select “ Start test ”and press the “ENTER”

button to start the test. The test

displayed on the screen.

Select and press the “ENTER” on “OK”/

”NG” to see the details.

Start measurement with “Quick start guide”

Wiring check

Test results of each item will be displayed.

* NG result may be given, even if the wiring is correct,

at the measurement site under bad power factors.

Self-diagnosis

be checked and the result will be displayed.

Sensor detection

The connected sensors are automatically detected and their max Ranges will be set.

KEW6315 -

Page 45

Start measurement with “Quick start guide”

Close the result display. Then, the blinking vectors and the

values of NG items will be displayed. If

ideal vector diagram will be displayed

Voltage clip is firmly connected to the DUT?

Measuring too high

Voltage clip is firmly connected to the DUT?

Voltage test lead

AC v

Settings are matched with the wiring system under

test?

Voltage clip is firmly connected to the DUT?

Voltage test lead

AC v

within ±10º of reference value

Voltage test leads are properly connected?

(Connected to proper channels?)

Clamp sensors are firmly connected to the Power

input terminals on the instrument?

Setting for Current Range is appropriate for input levels?

Arrow mark on the Clamp sensor and the orientation

of flowing current coincide with each other?

(Power supply to Load)

Clamp sensors are connected properly?

NG judgment

Wiring check

Criteria of judgment and cause

KEW6315

everything is OK, the

in the lower left corner.

Check Criteria of Judgment

Frequency of V1 is within 40

Frequency

AC Voltage

input

Voltage balance

Voltage

phase

Current

input

Current

phase

- 70Hz.

AC voltage input is 10% or more of (Nominal voltage x VT).

AC voltage input is within ±20% of reference voltage (V1). * (not checked for single-

phase wiring)

Phase of AC voltage input is

(proper vector).

Current input is 5% or more

and 110% or less of (Current

Range x CT).

- Power factor (PF, absolute

value) at each CH is 0.5 or

more.

- Active power (P) at each

CH is positive value.

Causes

oltage input terminal on the instrument?

harmonic components?

is firmly connected to the

43 - KEW6315

Page 46

KEW6315

If “NG” judgment is given frequently, there might be something wrong with the instrument.

oting

If the detection result is NG, each sensor type will be displayed in red.

Types of the connected current sensors are harmonized? Types of the current

measurements

sensors are firmly connected to the

If any failures are in doubt:

Exchange the connections of the sensors and test again.

Connect the current sensor, for which "NG" is given, to the CH on which

another sensor is properly detected.

If the result "NG" is given

suspected. A defect of sensor is suspected if "NG" is given for the same

another

Stop using the instrument and the sensor, if any defects are in doubt, and

Troubleshooting

Self-diagnosis

instrument and refer to “Chap.11 Troublesho

Sensor detection

Criteria of judgment and cause

Start measurement with “Quick start guide”

Stop using the

” (P.157).

Check

Type of

current sensor

???

(cause unknown)

KEW6315 -

sensors used for

- Current

sensor connected to

refer to "Chap. 11

Causes

should be the same.

instrument?

for the same CH, a defect of the instrument is

CH.

" (P.157) in this manual.

Page 47

Start measurement with “Quick start guide”

date and time.

start date and time.

records data

hen the date & time are specified as above

to 18:00 on August

during the selected time period at the preset intervals, and repeats

hen the time period is specified as above

, and

(8)(9) Setting for recording method

KEW6315

The following explains how to set recording start

(8) Specify the recording

During the selected period, KEW6315

Example: W

From 8:00 on August 2, 2013

(9) Specify the recording time period.

at the preset intervals.

, the recording period will be as follows.

7, 2013,

KEW6315 records data

recording process during the preset time span.

Example: W

(i) 8:00 to 18:00 on August 1, 2013,

(ii) 8:00 to 18:00 on August 2, 2013,

(iii) 8:00 to 18:00 on August 3, 2013,

(iv) 8:00 to 18:00 on August 4, 2013,

(v) 8:00 to 18:00 on August 5, 2013,

(vi) 8:00 to 18:00 on August 6, 2013,

(vii) 8:00 to 18:00 on August 7, 2013

(viii) 8:00 to 18:00 on August 8, 2013.

the

, the recording period is as follows.

45 - KEW6315

Page 48

KEW6315

Key is used for selecting an item, the

Key is for canceling the alternation. Taking the procedures in

as an example, Key operations are explained as follows.

"Power + Harmonics"

To record the items related to power quality, set it to any other proper current ranges

other than "AUTO". Only the settings of wiring and recording are included in the “Quick start guide”.

entered before starting a record.

/ frequency, THD for power quality event and filter coefficient (ramp) for Flicker

When the setting of "A Range" is set to other than "AUTO", the settings of "+ Clamp" will be automatically

Cursor

is being selected, over the i

left is the Recording start screen. Press the

the blue highlight on the desirable recording method, and press the

Key to confirm the selection. To quit the start guide, press

Key.

display of t

then

the

ENTER

previous screen

To alter the numbers such as

over digits with the right and left

with the up and down

In the screen to the left, the tenth place of the day is being selected.

The number can be increased or decreased by 1 with the up/ down

Key

ESC

the changes.

, showing the item

. In the screen to the

Key and move

and alter the number

Switching of displayed parameters

Basically, the Cursor selection, and the ESC Guide”

Press the

Start measurement with “Quick start guide”

ENTER Key is for confirming the

“Quick Start

Key to move the blue highlight

tems in blue letters

Cursor

ENTER

the ESC

If the to the left, used. Use press the

Cursor

press the

he selectable items is similar to the one shown

the up, down, right and left Cursor Keys can be

Cursor Keys to select the proper wiring system and

Key to confirm the selection. To return to the

and cancel the changes, press the ESC Key.

Date/ Time, move the blue highlight

Cursor Keys

Cursor Keys.

s. Press the ENTER Key to confirm the selection, or

Key to return to the previous screen and cancel

CAUTION:

If "AUTO" is set for "A Range", either

desirable recording item..

The following should be selected and

setting screen.

* Nominal voltage

altered to "OFF".

KEW6315 -

or "Power only" is selectable at step (1): Select

Press the key to show the

measurement.

Page 49

List of setting items KEW6315

5 Settings

5.1 List of setting items

Settings for measurement condition and data saving are necessary prior to making

measurements. Press the Key to enter into the SET UP mode and do the

necessary settings.

Settings consist of the following five categories. Use the to move between the categories.

After making the necessary changes, switch screens and exit from the SET UP screen. Confirm that the

is displayed in the upper left of the LCD at this time. This means the changes are enabled. If powering

off the instrument without switching screens, the changes you made will be cleared.

Basic Setting Make settings for the items common to each measurement.

Measurement Setting Make settings for each measurement mode.

Recording Setting Make settings for recoding.

Save Data Edit the recorded data or alter the instrument setting.

Others Configure the environmental setting.

Each setting

Basic

(Wiring)

(Voltage)

(Current)

(External input DC)

(Frequency)

Measurement

(Demand)

(Harmonics)

(Power quality)

(Flicker)

(Capacitance

calc.)

Recording

(REC item)

(REC method)

(Manual/

Constant rec./

Time period rec.）

Saved data

(REC data)

KEW6315 setting)

(KEW6315 setting)

Others

(Environment)

- 47 - KEW6315

Page 50

KEW6315 Basic setting

5.2 Basic setting

Press the Key. Use the Key to display the Basic setting screen.

KEW6315 - 48 -

Page 51

Settings of wiring system KEW6315

Settings of wiring system

”Basic wiring”

Choose one according to the wiring system to be measured.

Selection

(1) 1P2W×1

(2) 1P2W×2

(3) 1P2W×3

(4) 1P2W×4

* Current terminals that are not used in the selected wiring system can be used to

measure rms currents and harmonics.

* Default setting is highlighted in gray.

Move the blue highlight to “Wiring”. Show the pull-down menu.

Select a proper wiring system. Confirm. Cancel.

(5) 1P3W×1

(6) 1P3W×2

(7) 3P3W×1

(8) 3P3W×2

(9) 3P3W3A

(10) 3P4W

“+ Clamp” ： Optional clamp sensors

Move the blue highlight to “+ Clamp”. Show the pull-down menu.

Select a proper clamp setting. Confirm. Cancel.

- 49 - KEW6315

Page 52

KEW6315 Settings of wiring system

Wiring diagrams

When the blue highlight is located at “Wiring”, you can check the wiring diagram of the selected

wiring system with the key. The displayed diagram can be switched with or

key. Confirm. Cancel.

KEW6315 - 50 -

Page 53

Wiring connection KEW6315

Wiring connection

Read the following precautions prior to wiring connection.

DANGER

 With attention to the measurement category to which the object under test belongs, do not make

measurements on a circuit in which the electrical potential exceeds the following values.

* 300V AC for CAT. IV, 600V AC for CAT. III, 1000V AC for CAT. II

 Use the voltage test leads and clamp sensors dedicated for this instrument.

 Connect the clamp sensors, voltage test leads and power cord to the instrument first, and then connect

them to the measured object or the power source.

 When the instrument and the test lead are combined and used together, whichever lower category

either of them belongs to will be applied. Confirm that the measured voltage rating of the test lead is

not exceeded.

 Do not connect voltage test leads or clamp sensors unless required for measuring the desired

parameters.

 Clamp sensors should always be connected on the downstream side of a circuit breaker, which

is safer than the upstream side.

 Do not open-circuit the secondary side of a supplementary CT while it is energized because of the high

voltage generated at the secondary side terminals.

 Be careful to avoid short-circuiting the power line with the un-insulated part of the voltage test probes

during the setting up of the instrument. Do not touch the tip metal part.

 Transformer jaw tips are designed in such a way to avoid short-circuiting. If the circuit under test has

exposed conductive parts, extra care should be taken to minimize the possibility of shorting.

 Keep your fingers behind the barrier during a measurement.

Barrier: provides protection against electrical shock and ensuring the minimum required air and

creepage distances.

 Never disconnect the voltage test leads from the connectors of the instrument during a measurement

(while the instrument is energized).

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

WARNING

 To avoid possible electric shock and short-circuit, always turn off the line under test at wiring connection.

 Do not touch the un-insulated tip of voltage test leads.

- 51 - KEW6315

Page 54

KEW6315 Wiring connection

Clamp sensor direction for correct measurement:

 Confirm that the wiring system selected with the instrument and of the measured line are harmonized.

 Ensure that the arrow mark on the clamp sensor points towards to load side.

* Reverse clamping switches the symbols (+/-) for active power (P).

Power source

Load

Arrow mark: Point towards load side.

KEW6315 - 52 -

Page 55

Settings of voltage measurement KEW6315

* A pop

up appears and show

s the effective range.

Settings of voltage measurement

“Voltage range”

Choose a desired voltage range.

* For measurements according to IEC61000-4-30 Class S, set the range to “600V”.

Selection

600V/1000V

* Default setting is highlighted in gray.

Move the blue highlight to “V Range”. Show the pull-down menu.

Select a proper voltage range. Confirm. Cancel.

”VT Ratio”

Set the proper VT ratio when VTs (transformer) are installed in the measured system. The selected VT ratio

will be reflected to all the values measured during any voltage measurements.

Selection

0.01 - 9999.99(1.00)

* Default value is highlighted in gray.

Move the blue highlight to “VT Ratio”. Show the value entry window.*

- 53 - KEW6315

Set the VT Ratio. Confirm. Cancel.

Page 56

KEW6315 VT/ CT

source

VT/CT*

* This setting belongs to Current measurement setting.

DANGER

 With attention to the measurement category to which the object under test belongs, do not make

measurements on a circuit in which the electrical potential exceeds the following values.

* 300V AC for CAT. IV, 600V AC for CAT. III, 1000V AC for CAT. II

 Connect the Power cord to an outlet. Never connect it to the outlet of AC240V or higher.

 This instrument must be used on the secondary side of VT (transformer) and CT (current transformer).

 Do not open-circuit the secondary side of the supplementary CT while it is energized because of

the high voltage generated at the secondary side terminals.

CAUTION

 When a VT or CT is used, the measurement accuracy is not guaranteed due to several factors namely

phase characteristics and VT/CT accuracies.

The use of supplementary VT/CT’s may be required if the voltage/current values of the circuit under

test fall outside the instrument measuring range. In this case the value at the primary side of circuit

can be obtained directly by measuring the secondary side with appropriate an VT or CT installed in

the line under test as follows.

< Example of single-phase 2-wire (1-system) “1P2W x 1” >

When rating of the secondary side of CT is 5A, use of Clamp sensor 8128 (50A type) and testing

at 5A Range is recommended.

Power

Load

In this case, set the actual ratio of VT and CT to be used.

KEW6315 - 54 -

Page 57

Settings of voltage measurement KEW6315

”Nominal voltage”

Set the nominal voltage values applied from the measured object.

Selection

50V - 600V(100V)

* Default value is highlighted in gray.

Move the blue highlight to “Nominal V”. Show the value entry window.*

* A pop-up appears and show the effective range.

Enter the nominal voltage value. Confirm. Cancel.

Default values

When the blue highlight is located at “Nominal V”, you can check a list of the popular values

with the key.

Selection

100V/ 101V/ 110V/ 120V/ 200V/ 202V/ 208V/ 220V/ 230V/

240V/ 277V/ 346V/ 380V/ 400V/ 415V/ 480V/ 600V

Choose the appropriate voltage. Confirm. Cancel.

- 55 - KEW6315

Page 58

KEW6315 Settings of current measurement

Settings of current measurement

“Clamp” : Clamp sensors for current measurement

Select the model names of the connected sensors. If an optional sensor is used and set for “+Clamp”,

an exceptional sensor can be set for 4ch. The rated current and the max conductor size are displayed

in a pop-up while opening the list of sensor model names.

Selection

8128:5/ 50A/ AUTO

8127:10/ 100A/ AUTO

8126:20/ 200A/ AUTO

8125:50/ 500A/ AUTO

8124/ 8130:100/ 1000A/ AUTO

8129:300/ 1000/ 3000A

8141:

8142: 500mA/ AUTO

8143:

8146:

8147: 1/ 10A/ AUTO

8148:

* Default setting is highlighted in gray.

Move the blue highlight to “Clamp”. Show the pull-down menu.

Clamp sensors for power measurement

Clamp sensors for leakage current measurement

Select the model name of the sensor. Confirm. Cancel.

KEW6315 - 56 -

Page 59

Settings of voltage measurement KEW6315

”Current range”

Choose a desired current range. While “Record” is set at the “Recording Tab” to record the power quality

events, “AUTO”* is not selectable. To enable auto-ranging at current range, select “Do not record” for “Event”

in the REC Item. Please refer to “VT/ CT ” (P. 54) in this manual for the detailed settings of power quality

events.

* Measurements according to IEC61000-4-30 Class S cannot be performed while “AUTO” is selected.

Move the blue highlight to “A Range”. Show the pull-down menu.

Select a desired range. Confirm. Cancel.

”CT Ratio”

Set the proper CT ratio when CTs (current transformer) are installed in the measured system. The selected CT

ratio will be reflected to all the values measured during any current measurements. The details about CT are

described in “VT/CT” (P.54).

Selection

0.01 - 9999.99(1.00)

* Default value is highlighted in gray.

Move the blue highlight to “CT Ratio”. Show the value entry window.*

* A pop-up appears and show the effective range.

Set the CT Ratio. Confirm. Cancel.

Sensor detection

Pressing the key detects and displays the model names of the connected sensors automatically.

However, if the connected sensors are not the ones that should be connected for the selected wiring system,

or sensor detection fails, an error message will appear and the values entered at “Clamp”, “A Range” and “CT

Ratio” will be cleared. The details about “Sensor detection” are described in “Sensor detection” (P.44).

- 57 - KEW6315

Page 60

KEW6315 Settings of External input terminal/ reference frequency

Settings of External input terminal/ reference frequency

”DC Range”

Select a proper DC range according to the incoming DC voltage signals.

Selection

100mV/ 1000mV/ 10V

* Default setting is highlighted in gray.

Move the blue highlight to “DC Range”. Show the pull-down menu.

Select a proper range. Confirm. Cancel.

”Frequency”

Choose the nominal frequency of the system to be measured. If it is difficult to specify the voltage frequency,

for example, in the event of power interruption, KEW6315 performs measurements based on the preset

nominal frequency.

Selection

50Hz/ 60Hz

* Default setting is highlighted in gray.

Move the blue highlight to “Nominal f”. Show the pull-down menu.

Choose the frequency. Confirm. Cancel.

KEW6315 - 58 -

Page 61

5.3 Measurement setting KEW6315

5.3 Measurement setting

Press the Key. Change the tabs to “Measurement”.

Settings of demand measurement

“Measurement cycle”

Disable the demand measurement or set the demand measurement cycle in the preset recording period. When a demand measurement start, the measured demand values will be recorded at the selected measurement cycle. The cycle time should be selected from the following.

Selection

Not be used./ 10 min/ 15 min/ 30 min

* Default setting is highlighted in gray.

The selected demand measurement cycle has an influence on the selection of the measurement intervals. Since the measurement interval cannot be set to a longer time than the demand interval, the preset measurement interval may be changed automatically according to the selected demand measurement cycle. Selectable measurement intervals: 1sec/ 2sec/ 5sec/ 10sec/ 15sec/ 20sec/ 30sec/ 1 min/ 2 min/ 5 min/ 10 min/ 15 min/ 30 min.

Move the blue highlight to “Measurement”. Show the pull-down menu.

Select a desired demand cycle. Confirm. Cancel.

- 59 - KEW6315

Page 62

KEW6315 Settings of demand measurement

* A pop

up appears and show the effective range.

”Target value”

Set the demand target value.

Selection

0.001mW - 999.9TW(100.0kW)

* Default setting is highlighted in gray.

Move the blue highlight to “Target”. Show the value entry window.*

Enter the desired target value. Confirm. Cancel.

Either active or apparent power can be set as a demand target value. Pressing the “VA”/ “W”

key while opening the value entry window can switch active and apparent power. Move the blue highlight with

the keys to the unit and alter the unit with keys. Moving the decimal point is possible by

pressing or .

* Unit for apparent power: mVA, _VA, kVA, MVA, GVA, TVA / for active power: mW, _W, kW, MW, GW, TW

KEW6315 - 60 -

Page 63

Settings of demand measurement KEW6315

”Inspection cycle”

The buzzer sounds when the predicted value exceeds the target value within the selected inspection cycle.

The inspection cycle should be shorter than the demand measurement cycle. The relations between the

measurement and inspection cycles are as follows.

Move the blue highlight to “Inspection”. Show the value entry window.*

Select a desirable time. Confirm. Cancel.

Measurement cycle Inspection cycle

10 min/ 15 min 1 min/ 2 min/ 5 min

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

* Default value is highlighted in gray.

* A pop-up appears and show the effective range.

- 61 - KEW6315

Page 64

KEW6315 Outline of demand measurement concept

600kW

Outline of demand measurement concept

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 interval. Assuming the max target demand to be 500kW, the average power during Measurement cycle 1 is fine, but the power consumption for the first 15 min of Measurement cycle 2 is 600kW. In such a case, the average power during Measurement cycle can be maintained at 500kW (same as Measurement cycle 1) by reducing the power of the last 15 min to 400kW. If the power consumption during the first half of cycle 2 is 1000kW and the last 15min is 0kW, the average power is the same: 500kW. While “Inspection cycle” is set to “15 min”, the buzzer sounds after 15 min at the start of Measurement cycle 2.

(kW)

600

500

0 15 30

500kW 500kW

Inspection

cycle

Inspection

cycle

Inspection

cycle

400kW

(Buzzer)

Meas. cycle 2 Meas. cycle 1

Inspection

cycle

(min)

KEW6315 - 62 -

Page 65

Settings for Harmonic analysis KEW6315

Settings for Harmonic analysis

“THD calculation”

THD stands for ”Total Harmonic Distortion”. Select “THD-F” to calculate the total harmonics distortion

based on the basic wave and “THD-R” to do the calculation based on all rms values.

Selection

THD-F (based on basic wave)/ THD-R (based on all rms values)

* Default setting is highlighted in gray.

Move the blue highlight to “THD calc.”. Show the pull-down menu.

Select the calculation method. Confirm. Cancel.

”MAX hold”

Turn on the MAX hold to show the mark indicates the max rate of content on a harmonics graph.

Selection

ON/ OFF

* Default setting is highlighted in gray.

Move the blue highlight to “MAX hold”. Show the pull-down menu.

Turn on/ off. Confirm. Cancel.

- 63 - KEW6315

Page 66

KEW6315 Settings for Harmonic analysis

”Edit allowable range”

Set the EMC allowable range (rate of content) for harmonics per order. The edited ranges are displayed

as bar graph on the graph of harmonics.

Selection

Default/ can be customized (V/ A)

* Default setting is highlighted in gray.

Move the blue highlight to “Edit allowable range”. Show the list of the ranges.

Select any desired harmonic order. Show the value entry window.*

* A pop-up appears and show the effective range.

Set the allowable values. Confirm. Cancel.

The values in each box by default are complied with the international EMC standard IEC61000-4-7:

Industrial environment Class 3. Press the key (Default) to restore the edited values to default.

Press the key (A/V [%]) to switch current and voltage. The key is to return to

the Measurement setting screen.

KEW6315 - 64 -

Page 67

Threshold setting for Power quality (Event) KEW6315

Threshold setting for Power quality (Event)

Press the (OFF/ ON) to disable or enable the “threshold value” entry. If “OFF” is selected, the

item will not be recorded even the threshold value is set for it. The threshold value used during the

previous measurement is displayed by pressing the (ON) key.

Caution:

Threshold values for “Swell”, “Dip” and “INT” are the percentage of the nominal voltage. So when the nominal

voltage is changed, threshold voltage will be altered accordingly. For “Transient”, if the nominal voltage is

changed, the initial value will be automatically set to “300%”, which is three times the new nominal voltage (peak

voltage). The threshold value for “Inrush current” is the percentage of the Current Range, therefore, the value will

be altered if the setting of the current range is changed.

”Hysteresis”

Set a desired hysteresis in percentage to disable the event detection for the specific area. Setting a proper

hysteresis will be helpful to prevent unnecessary detections of events which are caused by voltage or

current fluctuations around the threshold values.

Selection

1 - 10%against the nominal voltage (5%)

* Default value is highlighted in gray.

Move the blue highlight to “Hysteresis”. Show the value entry window.*

* A pop-up appears and show the effective range.

Set the hysteresis [%]. Confirm. Cancel.

- 65 - KEW6315

Page 68

KEW6315 Threshold setting for Power quality (Event)

“Transient”: Over-voltage (Impulse)

Set an instantaneous voltage value as a threshold for the transient event. The following selection range

varies depending on the selected VT ratio.

Selection

±50 to ±2200Vpeak against the nominal voltage (300%)

* Default setting is highlighted in gray.

Move the blue highlight to “Transient”. Show the value entry window.*

* A pop-up appears and show the effective range.

Set the voltage value. Confirm. Cancel.

Example of Transient detection:

The details are described in “Displaying recorded events” (P. 116).

Voltage waveform

Threshold value (voltage value)

KEW6315 - 66 -

Page 69

Threshold setting for Power quality (Event) KEW6315

asured

waveform

“SWELL”: Instantaneous voltage rise

Set the threshold value (rms voltage in one cycle) for swell in percentage of the nominal voltage. The following selection range varies depending on the selected VT ratio. The preset hysteresis has an effect on this threshold value.

Selection

100 - 200% against the nominal voltage (110%)

* Default setting is highlighted in gray.

Move the blue highlight to “SWELL”. Show the value entry window.*

* A pop-up appears and show the effective range.

Set the percentages against the nominal voltage.

“Inrush Current”: Instantaneous current rise

Set the threshold value (rms current in one cycle) for inrush current in percentage of the max value

of the Current range. The following selection range varies depending on the selected CT ratio. The preset

hysteresis has an effect on this threshold value.

Selection

0 - 110% against the nominal voltage (100%)

* Default setting is highlighted in gray.

Move the blue highlight to “InrushCurrent”. Show the value entry window.*

* A pop-up appears and show the effective range.

Set the percentages against the nominal voltage.

Example of Swell/ Inrush current detection:

The details are described in “Displaying recorded events” (P. 116).

RMS waveform

(1) (2) (3)

rms value(2)

rms value(1)

Threshold

rms value(4) rms value(6) rms value(8)

rms value(3) rms value(5) rms value(7) rms value(9)

(5)

(4)

(6)

(7) (8) (9)

Hysteresis

- 67 - KEW6315

Page 70

KEW6315 Threshold setting for Power quality (Event)

* A pop

up appears and show the effective

range.

* A pop

up appears and show

s the effective range.

asured

waveform

“DIP”: Instantaneous voltage drop

Set the threshold value (rms voltage in one cycle) for dip in percentage of the nominal voltage. The following selection range varies depending on the selected VT ratio. The preset hysteresis has an effect on this threshold value.

Selection

0 - 100% against the nominal voltage (90%)

* Default setting is highlighted in gray.

Move the blue highlight to “DIP”. Show the value entry window.*

Set the percentages against the nominal voltage.

“INT”: A short period of power interruption

Set the threshold value (rms voltage in one cycle) for INT in percentage of the nominal voltage. The following selection range varies depending the preset VT ratio. The preset hysteresis has an effect on this threshold value. If rms voltages, 10V or less, are used for event detections, ensure that the Int event detection is enabled. Otherwise, events will not be detected properly.

Selection

0 - 100% against the nominal voltage (10%)

Move the blue highlight to “INT”. Show the value entry window.*

Set the percentages against the nominal voltage.

Example of Dip/ Int detection:

The details are described in “Displaying recorded events” (P. 116).

rms value(2)

RMS waveform

rms value(1)

(1) (2) (3)

Threshold

* Default setting is highlighted in gray.

rms value(4) rms value(6) rms value(8)

rms value(3)

(4)

rms value (5)

(5)

rms value (7) rms value(9)

(7) (8) (9)

(6)

Hysteresis

KEW6315 - 68 -

Page 71

Filter setting for Flicker measurement KEW6315

Filter setting for Flicker measurement

“Filter coefficient”

Set a proper filter coefficient according to the nominal voltage for accurate flicker measurements. Select

the values of nominal voltage, nominal frequency and filter coefficient values appropriate to the actual

measured object. If possible, harmonize the filter coefficient and the nominal voltage.

Selection

230V/ 220V/ 120V/ 100V

* Default setting is highlighted in gray.

Move the blue highlight to “Filter”. Show the pull-down menu.

Select proper Filter coefficient. Confirm. Cancel.

- 69 - KEW6315

Page 72

KEW6315 Target power factor for Capacitance calculation

* A pop

up appears and show the effective range.

Target power factor for Capacitance calculation

“Target power factor”

Set a target power factor for capacitance calculation. The power factor gets influenced badly if inductive loads,

such as motors, are connected to the power supply because current phases lag behind the voltage phases in

this case. Usually, phase advanced capacitors are installed in high-voltage-receiving installations, to reduce

such influences. Improving the power factor may cut down electricity tariffs if the customer is on low-, high- or

industrial power construction.

Selection

0.5 – 1 (1.000)

* Default setting is highlighted in gray.

Move the blue highlight to “Target PF”. Show the value entry window.*

Select a desired target PF.

KEW6315 - 70 -

Page 73

5.4 Recording setting KEW6315

5.4 Recording setting

Press the Key. Change the tabs to “Recording”.

- 71 - KEW6315

Page 74

KEW6315 Settings for recording items

Settings for recording items

The possible recording time on SD cards or the internal memory varies depending on the number of the

recorded items and the preset intervals. Select “Do not record” for the items which are not necessary to be

recorded to secure a longer recording time. The details are described in “Possible recording time”(P. 76).

“Power”

The blue highlight cannot locate on this area. This is just to make sure all the items related to electric power

are always recorded.

“Harmonics”

Select “Record” or “Do not record” the harmonics of voltage, current and power.

Selection

Record/ Do not record

* Default setting is highlighted in gray.

“Event”

Select “Record” or “Do not record” the detailed data when power quality events occur. The “Do not record” is not selectable when “AUTO”* is set for “A Range”. To select “Record”, set it to any other proper current ranges other than “AUTO”. * Measurements complied with IEC61000-4-30 Class S cannot be performed with “AUTO” setting.

Selection

Record/ Do not record

* Default setting is highlighted in gray.

Move the blue highlight to “Harmonics”/ “Event”. Show the pull-down menu.

Select “Record” or “Do not record”. Confirm. Cancel.

KEW6315 - 72 -

Page 75

Saved items KEW6315

Saved items

The following data measured on each CH will be saved according to the selected recording method. Saved items are depending on the selected recording method and wiring system.

REC file REC item

Power +Harmonics +Event

RMS voltage (line/ phase)

RMS current

Active power

Reactive power

Apparent power

Power factor

Frequency

Neutral current(3P4W)

Power

measurement

Harmonics

measurement

V/ A Change

Event type

Waveform

V/ A phase angle

Analog input voltage,

V/A unbalance ratio

1-min Voltage flicker

Short-term V Flicker (Pst)

Long-term V Flicker (Plt)

Capacitance calculation

Active power energy

Reactive power

Apparent power energy

Reactive power

Target demand (W/VA)

Total harmonic distortion of V(F/R)

Total harmonic distortion of A(F/R)

Harmonic V/ A(1-50th order)

V/ A phase angle (1-50th order)

V/ A phase difference (1-50th order)

Harmonic power (1-50th order)

RMS voltage per half-cycle

RMS current per half-cycle

Event detected date & time

Measured values at event detection

(consumption) lagging/ leading

(regenerating) lagging/ leading

Demand (W/VA)

Event type

V/A waveform

(1st order)

(consumption/ regenerating)

1CH, 2CH

Meas./ Rec. setting

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Page 76

KEW6315 Recording method

Recording method

“Interval”

Set the interval to record the measured data on the SD or internal memory. Seventeen different intervals are available, but it cannot be set to a longer time than the demand measurement cycle. The preset recording interval may be changed automatically according to the selected demand measurement cycle. Please refer to “Settings of demand measurement” (P. 59) in this manual.

Selection

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/ 2 hours/ 150,180 cycles (approx. 3 sec)

* Default setting is highlighted in gray. * The intervals: 150, 180 cycles (approx. 3 sec) are the ones defined in IEC61000-4-30. Data will be collected

in 150 cycles at 50Hz (nominal frequency) and in 180 cycles at 60Hz (nominal frequency).

Move the blue highlight to “Interval”. Show the list of the intervals.

Select a desired interval. Confirm. Cancel.

KEW6315 - 74 -

Page 77

Recording method KEW6315

“Start”

Select the method to start recording.

Selection

Manual/ Constant rec./ Time period rec.

* Default setting is highlighted in gray.

Move the blue highlight to “Start”. Show the pull-down menu.

Select a desired recording start method. Confirm. Cancel.

”Manual”

Start/ stop the recording with Key.

“Constant recording”

Measured data will be recorded continuously at the preset interval during the specified start/ stop time and date.

Please refer to “(8)/ (9) Setting for recording method” (P. 45).

Selection

Start time and date Day/ Month/ Year Hour:Minute (00/00/0000 00:00)

Stop time and date Day/ Month/ Year Hour:Minute (00/00/0000 00:00)

Move the blue highlight to “REC Start”/ “REC End”. Show the value entry window.

Specify the time and date. Confirm. Cancel.

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Page 78

KEW6315 Possible recording time

“Time period recording”

Measured data will be recorded at the preset interval for the specified time period of the selected period. When the specified time comes, a recording will start and end automatically; such a recording cycle will be repeated everyday during the specified period. Please refer to “(8)/ (9) Setting for recording method” (P. 45).

Selection

REC Period Start-Stop

REC Time Start-Stop

Day/ Month/ Year (DD/ MM/ YYYY) - Day/ Month/ Year (DD/ MM/ YYYY)

Hour:Minute (hh:mm) - Hour:Minute(hh:mm)

Move the blue highlight to “REC Period”. Show the value entry window.

Specify the time and date. Confirm. Cancel. Move the blue highlight to

“REC Time. Show the value entry window. Specify the time and date.

Confirm. Cancel.

Possible recording time

When the 2GB of SD is used:

REC item

Interval

1sec 13days 2sec 15days

5sec 38days 10sec 2.5months 15sec 3.5months 20sec 5months

Power +Harmonics

3days 3days

7days 15days 23days

1month

30sec 7.5months 1.5months

Interval

1min 2min

5min 10min 15min 20min 30min

Power +Harmonics

1-year or more

2-year or more

6-year or more

10-year or more

1hour 2hours 150/180-cycle

* Data of power quality events are not considered to estimate the possible recording time. The max possible

recording time will be shortened by recording such events. The max file size per recording is 1GB.

* Please ensure to use the SD cards provided with this instrument or as optional parts.

REC item

23days

3months

6months

1-year or more

2-year or more

3-year or more

5-year or more

7-year or more

10-year or more

4days

KEW6315 - 76 -

Page 79

5.5 Other settings KEW6315

5.5 Other settings

Press the Key. Change the tabs to “Others”.

Settings for system environment

“Language”

Select the language to be displayed.

Selection

Japanese/ English

* Default setting is highlighted in gray. Changes made by user will remain after system reset.

Move the blue highlight to “Language”. Show the pull-down menu. Select a

desired language. Confirm. Cancel.

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Page 80

KEW6315 Settings for system environment

“Date format”

Select a desired date display format. The selected date format will be reflected to the date display on the screen

and on each setting window.

Selection

YYYY/ MM/ DD / MM/ DD/ YYYY / DD/ MM/ YYYY

* Default setting is highlighted in gray. Changes made by user will not be cleared after system reset.

Move the blue highlight to “Date format”. Show the pull-down menu.

Select a desired date format. Confirm. Cancel.

“CH color”

Specify the colors for voltage and current per CH. The colors will be reflected into the characters on item label and lines on the graph and wiring diagram.

Selection

White/ Yellow/ Orange/ Red/ Gray/ Blue/ Green

The selected colro for VN is refected into the wiring diagram only.

* Default color setting is: VN: Yellow/ 1CH: Red/ 2CH: White/ 3CH: Blue/ 4CH: Green.

Changes done by user will not be restored to default even after the system is reset.

Move the blue highlight to “CH Color”. Show the color setting window.

Select colors. Confirm. Cancel.

KEW6315 - 78 -

Page 81

KEW6315 Setting KEW6315

KEW6315 Setting

“Time”

Adjust and set the internal system clock.

Selection

dd/ mm/ yyyy hh:mm

* The selected date format has an effect on this setting.

Move the blue highlight to “Time”. Show the value entry window.

Adjust the time and date. Confirm. Cancel.

“ID Number”

Assign an ID number for the unit. Assigning ID numbers will be helpful to use multiple units at the same time

or measuring multiple systems with one unit periodically and analyze the recorded data.

Selection

00-001 to 99-999 (00-001)

* Default setting is highlighted in gray.

Move the blue highlight to “ID Number”. Show the value entry window.

Enter an ID number. Confirm. Cancel.

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Page 82

KEW6315 KEW6315 Setting

“Buzzer”

Keypad sounds can be muted. The warning buzzer for demand judgment or low battery voltage sounds even “OFF” is selected.

Selection

On/ Off

* Default setting is highlighted in gray.

Move the blue highlight to “Buzzer”. Show the pull-down menu. Select On/ Off.

Confirm. Cancel.

“Bluetooth®”

Turn on/ off the Bluetooth® function. Select “Off” if Bluetooth® communication will not be performed.

Selection

On/ Off

* Default setting is highlighted in gray.

Move the blue highlight to “Bluetooth®”. Show the pull-down menu. Select On/ Off.

Confirm. Cancel.

“Power”

Select to enable or disable the auto-power-off function. This setting is for the case KEW6315 operates with an AC power supply. Auto-power-off activates in 5 min after the last operation while KEW6315 is operating with batteries.

For: Selection

AC Power Power off in 5 min. / Disable auto-off

Battery Power off in 5 min.

* Default setting is highlighted in gray.

Move the blue highlight to “Power”. Show the pull-down menu.

Select either turning on/ off the auto-off function. Confirm. Cancel.

KEW6315 - 80 -

Page 83

KEW6315 Setting KEW6315

“Backlight”

This setting can turn off the backlight automatically when the prescribed time passes after the last key operation. The backlight will be turned off in 2 min after the last operation while KEW6315 is operating with batteries.

For: Selection

AC Power Power off in 5 min. / Disable auto-off

Battery Power off in 2 min.

* Default setting is highlighted in gray.

Move the blue highlight to “Backlight”. Show the pull-down menu.

Select either turning on/ off the auto-off function. Confirm. Cancel.

“System reset”

Restore all the settings to default except for “Language”, “Date format”, ”CH Color” and “Time”.

Move the blue highlight to “System reset”. Show a confirmation message.

Select “Yes” or “No”. Restore the settings to default.

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Page 84

KEW6315 5.6 Saved data

5.6 Saved data

Press the Key. Change the tabs to “Saved data”.

Save the “ ”: Measurement data, “ ”: Print screen” and “ ”: Setting data” on the “ ”SD card or in the

“ ” internal memory. If SD card is inserted in the instrument, these data will be automatically saved on the

SD card. Remove or do not insert the SD card to save the data in the internal memory. Data save destination

is not adjustable. Max number of the file that can be saved in the internal memory is: 3 for measurement data

and 8 for the other data.

To delete, transfer or format the recorded data

Select a desired operation.

Confirm.

KEW6315 - 82 -

Page 85

To delete, transfer or format the recorded data KEW6315

Checkbox

location

“Delete data”

Show the list of the recorded data, and then select unnecessary data.

Icons on the screen means: : SD card, : Internal memory, Measured data, : Print screen,

: Setting data

Data are not listed in time sequence. The recorded date and time are displayed to the right of file name.

As for the data which are previously transferred from the internal memory to an SD card, the displayed

time means when the data were transferred. The scroll bar is displayed when the list of the recorded

data exceeds the display area.

Data

Scroll bar

Move the blue highlight to the data you want to delete. Confirm. A confirmation

message will appear. Select “Yes” or “No”. Delete the data.

A check mark “ ” will be put in the checkbox for the selected data. Multiple data can be selected at once.

“Delete”

Press the Key and select “Yes” on the confirmation message to delete the data.

“Internal”/ “SD card”

Pressing the Key can switch between “Internal memory” and “SD Card” and the corresponding icon

will be displayed in the upper left of the screen. Checked boxes will be cleared if the screens are switched

before deleting the data.

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Page 86

KEW6315 To delete, transfer or format the recorded data

“Space”

Storage media information can be checked with the Key. Press the Key to close the

information window.

Displayed items Selection

Capacity

Possible recording

time

Max number of

saved data

* Internal memory

only

Total size Total memory capacity

Free size Capacity of free space

Power only

Power+ Harmonics

Measurement data

Settings/

Print screen

Estimated possible recording time if the parameters to be

recorded are limited to power-related ones only.

Estimated possible recording time if the parameters to be

recorded are power-related ones and harmonics.

Number of measurement data files saved in the memory

* Max number of files: 3

Number of KEW6315 setting and print screen data files

* Max number of files: 8

“BACK”

To return to the “Saved data” screen, press the Key.

KEW6315 - 84 -

Page 87

To delete, transfer or format the recorded data KEW6315

Checkbox

Data location

“Transfer data”

Select the data you want to transfer from the “ ”: internal memory to the SD card “ ”.

Data files which can be transferred are: “ ”: Measurement data, “ ”: Print screen, “ ”: Setting data.

Data are not listed in time sequence. The recorded date and time are displayed to the right of file name.

As for the data which are previously transferred from the internal memory to an SD card, the displayed

time means when the data were transferred. The scroll bar is displayed when the list of the recorded data

exceeds the display area.

Scroll bar

Select the data you want to transfer. Confirm. A confirmation message will

appear. Select “Yes” or “No”. Selected data will be transferred.

A check mark “ ” will be put in the checkbox for the selected data. Multiple data can be selected at once.

“Transfer”

Press the (Transfer) Key and select “Yes” on the confirmation message to transfer the selected data.

“SD card”

To check the data on the SD card, press the (SD card) Key. Pressing the Key again returns

to the list of data saved in the internal memory. Checked boxes will be cleared if the screens are switched

before transferring the data.

“Space”

Storage media information can be checked with the Key. Press the Key to close the

- 85 - KEW6315

information window. Please refer to “Space” (P. 84) for further details.

Page 88

KEW6315 To delete, transfer or format the recorded data

“BACK”

To return to the “Saved data” screen, press the Key.

“Format”

Format the “ ”: SD card or “ ”: Internal memory. Data are not listed in time sequence. The recorded

date and time are displayed to the right of file name. As for the data which are previously transferred from

the internal memory to an SD card, the displayed time means when the data were transferred. The scroll

bar is displayed when the list of the recorded data exceeds the display area.

Data location

Scroll bar

A confirmation message will appear. Select “Yes” or “No”. Format.

“Format”

A confirmation message will appear when pressing the (Format) Key. Select “Yes” to start format.

“Internal”/ “SD card”

Pressing the Key can switch between “Internal memory” and “SD Card” and the corresponding icon

will be displayed in the upper left of the screen.

“Space”

Storage media information can be checked with the Key. Press the Key to close the

information window. Please refer to “Space” (P. 84) for further details.

“BACK”

To return to the “Saved data” screen, press the Key.

KEW6315 86

Page 89

Type of the saved data KEW6315

Type of the saved data

Data file handling

The file name will be assigned automatically. File no. is kept and saved, even after powering off the

instrument, until the system is reset. The file number will increase until it exceeds the max file number.

If a file with the same file name already exists, the files in the data folder will be saved as another name

with a different file number. The file number will be automatically increased by 1. However, “Print screen”

and “Setting” files will be overwritten in such a case. When the file number starts from “0” or one same

SD is used for multiple instruments, extra cautions should be paid so that necessary files will not be

overwritten. When all the file numbers are used for each type of data, the files on the data folder will be

overwritten.

If files are deleted or the name of folder or file are changed on a PC, editing on the instrument or data

analysis with special software cannot be performed. Please do not change the name of folder or file.

“Print screen”

Press the to save the screen images as BMP files.

File name: PS-

| Dest. code

SD:SD card ME:Internal memory

* Dest. = Destination

000

File No.

(000-999)

.BMP

Extension (BMP file)

“KEW6315 Setting”

Press the key and move to “Saved data” tab, and then select “Save Settings”.

File name: SUP

| | Dest. code

S:SD card

M:Internal memory

- 87 - KEW6315

S 0000 .PRE

File No.

(0000-9999)

Page 90

KEW6315 Type of the saved data

“Data folder”

New folder will be created per measurement to save the interval and power quality data.

Folder name:

/ KEW

/ S

Dest. code S:SD card M:Internal memory

Data No.

(0000-9999)

0000

“Interval data”

KEW6315 setting

Measurement setting

Power measurement

Harmonics measurement

File name SUP

INI S

INP S

INH S

S:SD card M:Internal memory

Dest. code

0000 .KEW

Data No.

(0000-9999)

“Power quality data”

Event type

Waveform

V/ A change

File name EVT

WAV

VAL

S:SD card M:Internal memory

Dest. code

(0000-9999)

0000 .KEW

Data No.

KEW6315 - 88 -

Page 91

KEW6315 settings and Data loading KEW6315

Data location

KEW6315 settings and Data loading

Select a desired operation.

Confirm.

“Save settings”

Save the “ ”: Setting data on the “ ”: SD card or in the “ ”: internal memory. Data are not listed in time

sequence. The recorded date and time are displayed to the right of file name. As for the data which are

previously transferred from the internal memory to an SD card, the displayed time means when the data were

transferred. The scroll bar is displayed when the list of the recorded data exceeds the display area.

Scroll bar

A confirmation message will appear. Select “Yes” or “No”. Data will be saved.

“Save”

Press the Key and select “Yes” on the confirmation message to save the data on the SD card or in

the internal memory.

“Internal”/ “SD card”

Pressing the Key can switch between “Internal memory” and “SD Card” and the corresponding icon

will be displayed in the upper left of the screen.

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Page 92

KEW6315 KEW6315 settings and Data loading

“Space”

Storage media information can be checked with the Key. Press the Key to close the

information window. Please refer to “Space” (P. 84) for further details.

“BACK”

To return to the “Saved data” screen, press the Key.

The following settings for KEW6315 can be saved.

Basic setting

Setting item

Wiring

Voltage range

VT ratio

Nominal voltage

Clamp/ Current range

CT ratio

DC range

Frequency

Other settings

Setting item

Environment Date format

KEW6315

setting

ID number

Buzzer

Measurement setting

Setting item

Measurement cycle

Demand

THD(total harmonic distortion) calc.

Harmonics

Threshold for Transient

Power

quality

Flicker Filter coefficient (Ramp)

Capacitance

calculation

Inspection cycle

Target

Allowable range

MAX HOLD

Threshold for Hysteresis

Threshold for Swell

Threshold for Dip

Threshold for INT

Threshold for Inrush current

Target PF

Recording setting

Recording

item

Recording method

Constant meas.

Time period rec.

Setting item

Harmonics

Power quality (event)

Interval

REC Start

REC End

Rec. period

Time period

Start

Start – End

KEW6315 - 90 -

Page 93

KEW6315 settings and Data loading KEW6315

Check box

Data location

“Read settings”

Read the “ ”: Setting data from the “ ”: SD card or from the “ ”: internal memory. Data are not listed

in time sequence. The recorded date and time are displayed to the right of file name. As for the data which

are previously transferred from the internal memory to an SD card, the displayed time means when the data

were transferred. The scroll bar is displayed when the list of the recorded data exceeds the display area.

Select the data you want to transfer. Confirm. A confirmation message will

Scroll bar

appear. Select “Yes” or “No”. Confirm.

The scroll bar is displayed when the list of the recorded data exceeds the display area. A check mark “ ”

will be put in the checkbox for the selected data.

“Read”

Press the (Transfer) Key and select “Yes” on the confirmation message to transfer the selected data.

“Internal”/ “SD card”

Pressing the Key can switch between “Internal memory” and “SD Card” and the corresponding icon

will be displayed in the upper left of the screen.

“Space”

Storage media information can be checked with the Key. Press the Key to close the

information window. Please refer to “Space” (P. 84) for further details.

“BACK”

To return to the “Saved data” screen, press the Key.

91 KEW6315

Page 94

KEW6315 Instantaneous value “W”

Chap. 6 Displayed Items

6.1 Instantaneous value “W”

Press the Key. Display the screen for “W”: Instantaneous value.

List display of the measured values

“List” (/Zoom)

e.g.) Instantaneous values measured under 3P3W3A+1A (Three-phase Three-wire + Current

(optional sensor))

Multiple measured values can be displayed on one screen. The displayed items can be changed by

pressing the corresponding keys.

Total

(1ch+2ch+3ch)

Measured at 1CH

Measured at 2CH

Measured at 3

Measured with an

optional sensor.

Elapsed time/

Selected interval

KEW6315 - 92 -

Page 95

List display of the measured values KEW6315

Symbol displayed on the LCD

V*1 Phase voltage VL*1 Line voltage A Current

consumption

regenerating

Lagging

leading

Reactive

power

f Frequency

DC2

V/A Phase

difference

Active

power

DC1

Power

factor

Analog input

Voltage at 1ch

An*2 Neutral current PA*3

W screen: Displays of V and VL can be “customized” when “3P4W” is selected.

W screen: “An” is displayed only when “3P4W” is selected.

W screen: Displays of PA and C can be “customized” with the (customize) Key. Line voltages

Lagging

leading

Analog input

Voltage at 2ch

Lagging

－

leading

S Apparent power

Capacitance calculation

are converted into phase voltages to determine currents and phase angles for “PA” of 3P3W3A.

e.g.) Instantaneous values measured under 1P3W-2 (2 systems)

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Page 96

KEW6315 List display of the measured values

Measured

Computed

values on

Computed

values on

“Switching the displayed systems”

Press the key and switch the displayed systems. Items displayed in a screen depend on the

selected wiring configuration and the number of systems. The dotted lines represent the space of each

display area.

1P2W-1 to -4 (Single phase, 2-wire, 1 – 4 systems)

1-system 2-system 3-system 4-system

values on

1ch

(V1/A1)

Total

values

1P3W-1, -2 (Single phase, 3-wire, 1 or 2 systems)

3P3W-1, -2 (Three-phase, 3-wire, Blondel’s theorem, 1 or 2 systems)

values on

(V12/A1)

1-system 2-system

values on

1ch

(V1/A1)

1ch and 2ch of

1ch

values on

1ch

(V1/A2)

values on

2ch

(V2/A2)

Sum of

1 system

1-system 2-system

values on

2ch

(V23/A2)

Sum of

1, 2 and 3ch of

1 system

values on

1ch

(V1/A3)

values on

1ch

(V1/A3)

1ch and 2ch of

2 systems

3ch

values on

(V2/A4)

Sum of

values on

1ch

(V12/A3)

values on

1ch

(V1/A4)

2ch

values on

(V23/A4)

Sum of

1, 2 and 3ch of

2 systems

Sum of

1ch and

2ch of

1 system

2ch

Sum of

1ch and

2ch of

2 systems

Total values

3ch

Sum of

1, 2 and

3ch of

1 system

Total values

Sum of

1, 2 and

3ch of

2 systems

KEW6315 - 94 -

Page 97

List display of the measured values KEW6315

Measured

3P3W3A (Three-phase 3-wire)

values on

1ch

(V12/A1)

values on

2ch

(V23/A2)

Sum of 1, 2 and 3ch

3P4W (Three-phase 4-wire)

values on

3ch

(V31/A3)

values on

1ch

(V1/A1)

Sum of 1, 2 and 3ch

values on

2ch

(V2/A2)

values on

3ch

(V3/A3)

“Switching the type of displayed values”

The displayed values can be switched between Inst, Avg, Max and Min values with key. If the

selected interval is “1 sec”, Inst, Avg, Max and Min values will be the same since the display update is

also “1 sec”.

“Wh” Integration value

Press the (Wh) key and switch the screens to view integration values. Please refer to

“6.2 Integration value [Wh]” (P. 100) in this manual.

“Zoom”

Four or eight measured values can be zoomed and displayed on one screen by pressing the

(Zoom) key. Please refer to “Zoom display” (P. 96) in this manual.

“Trend graph”

Press the (Trend) key to show the trend graphs. The displayed time area is from present to

the past 60 min. Please refer to “Displaying Trend graph” (P. 97) in this manual.

“Customize”

Press the (Customize) key to switch the displayed items and change the display positions.

Please refer to “Changing displayed items and display position” (P. 99) in this manual.

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Page 98

KEW6315 Zoom display

Displayed item

Zoom display

Example: 8-split screen

Select 4 or 8 values and display the values on one screen. The displayed text will be enlarged so it is easy

to see.

”Displayed items”

Type of value: Inst/ AVG.

Select the items to be displayed in each column. Then, the selectable items will be displayed to the right.

KEW6315 - 96 -

Move the blue highlight to a Displayed item in any column. Show the list.

Select a desired item to be displayed. Confirm. Cancel.

Page 99

Displaying Trend graph KEW6315

Elapsed time

”Type of value”

Any of the following values can be displayed in each column.

Inst: Instantaneous value, or AVG: Average value, MAX: Maximum value or MIN: Minimum value within the

selected interval.

If the selected interval is “1 sec”, Inst, Avg, Max and Min values will be the same since the display update

is also “1 sec”.

Move the blue highlight to a Type of value in any column. Show the pull-down menu.

Select a desirable type. Confirm. Cancel.

“List display”

Press the (List) key to display all the values on the list.

”4-Split”/ ”8-Split”

Press the (4-Split/ 8-Split) key to expand and display 4 or 8 items on one screen.

Displaying Trend graph

In the following example, active powers per ch for 1P3W-2 (Single-phase 3-wire, 2-system) are displayed

on the graph.

Changes of each measured values can be displayed on the graph.

Inst value on 1ch of system 1

Inst value on 2ch of system 1

Inst value on 1ch of system 2

Inst value on 2ch of system 2

Lines are colored per ch.

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Page 100

KEW6315 Displaying Trend graph

The following example shows 1P3W-2 (Single-phase 3-wire, 2-system).

”Change the items displayed on Trend graph”

Press the key and change the items displayed on the trend graph.

“Σ/CH”

Press the (Σ/CH) key to switch the graphs: one is to display the sum and total values per

system and another is to display the values per ch. The selection of “Σ” or “CH” will be effective for all the

trend graphs. When “Σ” is selected, while A: rms current values is selected for 3P4W, An: neutral current

values will be displayed on the trend graph.

“List display”

Press the (List) to show all the values on a list.

KEW6315 - 98 -