Kyoritsu Electrical Instruments 6305-00 User manual

Quick Manual

DIGITAL POWER METER

KEW 6305

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 1 −

KEW6305

KEW6305

Preface

● Preface
  This Quick manual is a simplified version of the full instruction manual which can be found in the supplied

CD-ROM. This manual is intended only as a handy reference guide and should only be used
after having read the full instruction manual which contains full details on each function of this
instrument and the items contained in the package.

● Precautions

  The instruction manual (full manual) contains warnings and safety procedures which have to be

observed to ensure safe operation of the instrument and maintain it in a safe condition. Thus,
these operating instructions have to be read prior to using the instrument.

Contents

1. Instrument Overview ······························································································································2

2. Instrument Layout ··································································································································4

3. Preparations ··········································································································································· 7

4. Set-up:

SET UP

Range ······················································································································ 9

5. Measurement Ranges ·························································································································13

6. Instantaneous value Measurement:

Range···············································································14

7.

8.

9.

10.

11.

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 2 −

KEW6305

KEW6305

Instrument Overview

1. Instrument Overview

Features

This is a digital Power meter that can be used for various wiring systems and can measure up to 3
systems on single-phase 2-wire circuit. That is, this instrument does the jobs of three just by one. It can be
used for measurements of instantaneous, integration and also demand values.

Measured data can be saved in SD card or the internal memory, and the data can be t

ransmitted to PC via

USB. Measured data can be checked on android devices in real-time by using Bluetooth function.

Safety construction

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

Wiring configration

KEW6305 supports: Single-phase 2-wire, Single-phase 3-wire, Three-phase 3-wire and Three-phase

4-wire

Measurement and calculation

KEW6305 measures voltage (RMS), current (RMS), active power, frequency and calculates reactive/

apparent power, power factor, neutral current (Three-phase 4-wire only) and active/ reactive/
apparent energy.

Demand measurement

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

values.

Saving data

Instantaneous values can be saved every time pressing the

W

SAVE

Key. Integration and demand
values can be saved for various periods from 1 second up to 1 hour. The maximum, minimum and
average values of instantaneous values during each cycle can also be saved.

Dual power supply system

KEW6305 operates either with an AC power supply or with batteries. In the event of interruption,

while operating with an AC power supply, power to the instrument is automatically restored by the
batteries in the instrument.

Large display

Up to 3 measured items can be displayed on the large screen simultaneously.
(e.g. voltage, current and active power)

Backlight

Backlight to facilitate working in dimly illuminated areas

Light & compact design

Clamp sensor type, compact and light weight design

Application

Data in the internal memory and in SD card can be transferred to PC using USB connection or SD

slot. The supplied PC software application enables easy settings of the instrument and analysis
of the saved data from PC, moreover, can synchronize recording intervals and internal clocks of
two KEW6305 to perform synchronous measurement. Measured data can be checked on android
devices in r

eal-time via Bluetooth communication.

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 3 −

KEW6305

KEW6305

Functional Overview

Functional Overview

SET UP

Configures KEW6305 and makes settings for
measurements.

DATA CHECK

Displays the saved data on the LCD.

See

(Section 11) “Data Check”

for further

details.

WIRING CHECK

Performs a check for proper connection.

See

(Section 10) “Wiring check”

for further details.

[W] Instantaneous value measurement

Measures average, max, min values of instantaneous
values of current, voltage and electric power.

See

(Section 6) “Instantaneous value measurement”

for further details.

[Wh] Integration value measurement

Measures active/apparent/reactive powers on
each CH.

See

(Section 7) “Integration value measurement”

for further details.

[DEMAND] Demand value measurement

Measures demand values based on the preset
target values.

See

(Section 8) “Demand measurement”

for

further details.

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 4 −

KEW6305

KEW6305

Instrument Layout

2. Instrument Layout

Front view

Display

（LCD）

Keys

Status indicator LED

Green

Light up: Recording&
Measuring

Blink: Stand-by

Red Light up: Recording error

START/ STOP

Key

START
/STOP

Start/stop integration &
demand measurements

Backlight

Key

Turn on/off the LCD
backlight

Cursor

Key

Select settings,
switch screens

ENTER

Key

ENTER

Confirm entries

Function Switch

W SAVE

Key

ESC

/

RESET

Key

Power on/ off, select
Measurement range.

W

SAVE

Save measured
instantaneous values

ESC

Cancel setting change
or clea r i ntegr ati on/
demand data selected
with

Cursor

Key

DATA HOLD

/

KEY LOCK

Key

DATA
HOLD

Freeze the readings on the LCD.
* Measurement is being performed while the readings are

being fixed.
A long press (2 sec or longer) disables all Keys (except for
Backlight Key) to prevent operational errors in recording.
Another long press (2 sec or longer) can restore the disabled
Keys.

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 5 −

KEW6305

KEW6305

Connector

Connector

SD Card Cover

USB Port Cover

SD Card Slot

USB Port

SD Memory Card

Voltage Input Terminal

(VN, V1, V2, V3)

Power Connector

Current Input Terminal

(A1, A2, A3)

Terminal Cover

< When the Connector Cover is opened >

< When the Connector Cover is closed >

Units

Phase No.

Wiring system

Voltage range

Current range

Side face

Symbols displayed on the LCD
< All symbols >

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 6 −

KEW6305

KEW6305

Symbols displayed on the LCD

< Symbols appear to show the state of the instrument or measurement >

Symbol Description

Keys are being locked.

Preset voltage value is exceeded.

Preset current value is exceeded.

Operating with AC power supply.

Operating with batteries.

Data hold function is active.

SET UP Range is selected.

WIRING CHECK Range is selected.

Blinks while instantaneous value is being displayed on the LCD.

Blinks while integration value is being displayed on the LCD.

Blinks while demand value is being displayed on the LCD.

Capacity of SD card or internal memory is full.

DATA CHECK Range is selected.

Data can be saved in the SD card.
* Blinks while saving data.

USB cord is connected to the terminal.
* Blinks during data communication.

Using Bluetooth communication.

Data can be saved in the internal memory.
* Blinks while accessing to the memory.

VT ratio is set to other than 1.

CT ratio is set to other than 1.

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 7 −

KEW6305

KEW6305

Preparations

3. Preparations

Battery

KEW6305 operates either an AC power supply or batteries. Capable of performing measurements in an
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) can be used.

If an AC power supply is interrupted and batteries have not been installed, the instrument will be powered
of

f and the measuring data may be lost.

Indication on screen

Symbol of power supply displayed on each measurement screen changes as follows.

< During AC power supply operation > < During battery operation >
AC power supply symbol ( ) appears. Battery symbol ( ) appears.

● Battery condition
  Battery symbol changes as follows depending on battery condition.

Battery operating time

For approx. 15 hours, with new alkaline batteries.
* It is reference time and will be shortened if using the backlight or

Bluetooth function.

Batteries are exhausted.
(Accuracy of readings cannot be guaranteed.)
Depending on the states of measurement, instrument operates as
follows automatically.
* while saving instantaneous value data (Files are opened.)

-> Close the open files. (Data will be saved.)
* while measuring integration/ demand values

-> Force-quit measurements. (Data will be saved.)

How to install batteries

Install batteries in correct polarity as marked inside.
Remove all the batteries if the instrument is to be stored and will not be in use for a long period.

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 8 −

KEW6305

KEW6305

Cord connection

Cord connection

Start-up screen

KEW6305 will be powered on when setting the Function switch to any position other than OFF.
All of the LCD segments will be displayed first, and then model name with version information.
After that, stand-by screen for the selected range will be displayed.
Upon powering on the instrument, self-check routine initiates automatically. Stop using the instrument if
error message appear on the LCD after self-check and refer to

(Section 15) Troubleshooting

in the full

instruction manual.

Match the
arrow marks.

Rated supply voltage : 100 - 240VAC(±10%)
Rated supply frequency : 45 - 65Hz
Max power consumption : 10VAmax

Voltage test lead

Power cord

Clamp sensor

Error No. (001 – 063)

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 9 −

KEW6305

KEW6305

Set-up:

SET UP

Range

4. Set-up:

SET UP Range

Set the Function switch to

SET UP

Range for making various settings.

Settings listed below can be changed. (27 items in total)

List of setting items

Setting Setting no./ item Symbol Details

Basic

setting

01 Wiring system

1P 2W( 1ch)/ 1P2W( 2ch )/ 1P2 W(3 ch) /
1P3W/ 3P3W/ 3P3W3A/ 3P4W

02 Voltage range

150/ 300/ 600V

03 Clamp sensor

50/ 100/ 200/ 500/ 1000/ 3000A type

04 Current range -

03

Sensor

Range

50A 1/5/10/25/50A/AUTO
100A 2/10/20/50/100A/AUTO
200A 4/20/40/100/200A/AUTO
500A 10/50/100/250/500A/AUTO

1000A 20/100/200/500/1000A/AUTO
3000A 300/1000/3000A

05 VT ratio

0.01 - 9999.99 (can be set by 0.01)

06 CT ratio

0.01 - 9999.99 (can be set by 0.01)

Time&

Buzzer

07 Date and time

Year:Month:Day:Hour:Minute:Second

08 Buzzer

ON / OFF

Measure-

ment

09 Recording interval

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

10 Specific time period

rec. or endless rec.

ON: Specifying start/ stop time
(repeatedly recorded)
OFF : Record the data continuously

11

*1

Time period setting

Time setting

Start and stop time
(Year:Month:Day:Hour:Minute:Second)

12

*1

Time period setting

Date setting

Year:Month:Day:Hour:Minute:Second

13

*2

Start of continuous

measurement

Year:Month:Day:Hour:Minute:Second

14

*2

End of continuous

measurement

Year:Month:Day:Hour:Minute:Second

15 Target demand

Value : 0.1 - 999.9
Unit: W/kW/MW/GW/VA/kVA/MVA/GVA

16 Demand measure­ ment cycle

NO/ 10/ 15/ 30 min
* Demand measurement will not be

performed when NO has been

selected.

17 Demand warning

cycle

1/2/5 min. when measurement cycle is
10or15 min., 1/2/5/10/15 min. when
measurement cycle is 30 min.

*1 : Setting 11& 12 can be changed only when Setting 10 has been set to ON.
*2 : Setting 13& 14 can be changed only when Setting 10 has been set to OFF.

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 10 −

KEW6305

KEW6305

Set-up:

SET UP

Range

Setting Setting no./ item Symbol Details

SD card/

Internal

memory

18 Av ail abl e s pac e i n

SD card

Show the available space in the installed
SD card in percentage.

19 SD card Format

ON(Format)/ OFF(Not format)

20 Av ail abl e s pac e i n

Internal memory

Show the available space in the internal
memory in percentage.

21 I n t er n a l m e m o ry

Format

ON(Format)/ OFF(Not format)

Others

22 System reset

ON(Reset)/ OFF(Not reset)
23 ID number - Designate ID no. (00-001 - 99-999)
24 Setting read

Save no.: 01 - 20
25 Setting save

Save no.: 01 - 20
26 Bluetooth

ON/ OFF
27 V / A R a n g e Au t o -

switching

ON/ OFF

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 11 −

KEW6305

KEW6305

Setting procedure

4-1. Setting procedure

STEP1

Set the Function Switch to

SET UP

Range. (to show the Set-up screen)

STEP2

Use the Cursor keys and switch the Setting items with Setting no. 01 to 27.

(Up) (Right)

for increasing numbers,

(Left) (Down)

for decreasing numbers.

STEP3

Press on the desired Setting no..

(corresponding setting item starts blinking and enters into the setting change mode.)

STEP4

Use the Cursor keys and change settings.

Item no.

Set-up screen

3P3W (default setting)

3P4W 1P2W(1ch)

1P3W 1P2W(3ch)

1P2W(2ch)

< Example >

3P3W3A

or

or

Setting no. “01”, Setting Item “Wiring system”:

Setting: Select any one of 1P2W(1ch)/1P2W(2ch)/1P2W(3ch)/1P3W/3P3W/3P3W3A/3P4W.

STEP5

Confirm the changed setting.

STEP5

Cancel the change.

(Press .) (Press .)

Setting completes. Go to STEP 2 for the other settings.

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 12 −

KEW6305

KEW6305

Wiring system

4-2. Wiring system

Orientation of Clamp sensor

Power
supply

Arrow mark:
Point towards
load side

Load

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

1P3W

A1

V1

VN

V2

L1

N

L2

L1

L1

N

L2

Load

1

1P3W

A2

A2

L

N

L

N

L

N

L

N

A1

V1

VN

A3

Load

1

Load

2

Load

3

1P2W(2ch)

1P2W(3ch)

1P2W(1ch)

Power

supply

Power

supply

V2

A3

V1

V3

A1

A2

L1(R)

L1(R)

L2(S)

L3(T)

Load

3P3W

3P3W3A

VN

V2

V1

A1

A2

L1(R)

L2(S)

L3(T)

L1(R)

L2(S)

L3(T)

Load

1

3P3W

3P3W

Power

supply

Power

supply

V3

3P4W

VN

V2

A3

V1

A1

A2

L1(R)

L2(S)

N

L1(R)

L2(S)

L3(T)

N

Load

3P4W

Power

supply

L3(T)

L3(T)

L2(S)

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 13 −

KEW6305

KEW6305

Measurement Ranges

5. Measurement Ranges

KEW6305 can perform the following three different measurements.
(a) Instantaneous value measurement (W Range)
(b) Integration value measurement (Wh Range)
(c) Demand measurement (DEMAND Range)

Select a desirable Range according to the steps below.

1. Set the Function Switch to

W/ Wh/ DEMAND Range.

Set the switch to W/ Wh/ DEMAND position.

2. Select a Range
Any one of following symbols blinks on the LCD to show which Range has been selected.

e.g.: When Wh Range is selected, symbol blinks.

(a) Selecting W Range
(1) Use the Keys and select the  W  symbol on the LCD.
(2) Then use the Keys to switch screens (1- 3) to be displayed.

Screen 1 - symbol blinks on the top

Screen 2

- symbol blinks on the middle

Screen 3

- symbol blinks on the bottom

(b) Selecting

Wh or DEMAND Range

(1) Use the Keys and select the   symbol while the Function switch is at the W

Range position.

(2) Press the Keys and select the Wh or DEMAND Range.
(Selecting either Wh or DEMAND Range is impossible unless   symbol is not selected.)
(3) Use the Keys and switch the displayed contents.

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 14 −

KEW6305

KEW6305

Instantaneous value Measurement:

W

Range

6. Instantaneous value Measurement:

W Range

6-1. Steps for measurement

Ensuring your safety

↓

Preparation for measurement

↓

Setting

↓

Wiring

↓

Instantaneous value measurement

● Parameters for

W Range

Parameters to be displayed on the LCD Unit

Voltage

(RMS)

V : average voltage of each phase
Vi : voltage of each phase

V

Current

(RMS)

A : average current of each phase
Ai : current of each phase

A

Active
power

P : total active power Pi : active power of each phase
Polarity :+ (no sign) consumption

- (minus) regenerating

W

Reactive

power

Q : total reactive power Qi : reactive power of each phase
Polarity :+ (no

sign) lagging phase

- (minus) leading phase

V

ar

Apparent

power

S : total apparent power Si: apparent power of each phase VA

Power
factor

PF : power factor of whole system PFi : power factor of each phase
Polarity :+ (no sign) lagging phase

- (minus) leading phase

PF

Frequency f : frequency of V1 Hz

Neutral
current

In : current on neutral line (3P4W only) An

* i = 1, 2, 3    

SET UP Range

Basic setting Measurement setting

Setting 01 Wiring system
Setting 02 Voltage range
Setting 03 Clamp sensor
Setting 04 Current range
Setting 05 VT ratio (if necessary)
Setting 06 CT ratio (if necessary)

Range

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 15 −

KEW6305

KEW6305

Selecting/switching display contents

6-2. Selecting/switching display contents

Three parameters (max) can be displayed in one screen. (In the example 1-A below, V, A and P are
displayed.) Display screen will be different depending on wiring systems.

● e.g. For Three-phase 4-wire 3P4W (16 screens):

Screen 1-A

A B C D E F G H

1

Blink

(Screen) (1-A) (1-B) (1-C) (1-D)

− − −

Top

V
A
P

V1
A1
P1

V2
A2
P2

V3
A3
P3

Middle

Bottom

2

Blink

(Screen) (2-A) (2-B) (2-C) (2-D)

− − −

Top

P
S

PF

P1
S1

PF1

P2
S2

PF2

P3
S3

PF3

Middle

Bottom

3

Blink

(Screen) (3-A) (3-B) (3-C) (3-D) (3-E) (3-F) (3-G) (3-H)

Top

V1
V2
V3

A1
A2
A3

P1
P2
P3

PF1
PF2
PF3

S1
S2
S3

Q1
Q2
Q3

f

In

−

VL12
VL23
VL31

Middle

Bottom

* Screen 1-A is displayed after powering on the instrument.
* Use

or Key to switch screens listed above in a horizontal direction.
(from 1-A to 1-D, 2-A to 2-D and 3-A to 3-G)
* Use

or Key to switch screens listed above in a vertical direction. (from 1-A to 3-A only)
On any of screens 1-B to 1-D, press

to switch screen to 3-A or to switch screen to 2-A.

On any of screens 2-B to 2-D, press

to switch screen to 1-A or to switch screen to 3-A.

On any of screens 3-B to 3-G, press

to switch screen to 2-A or to switch screen to 1-A.

* Phase no.❶,❷,❸ will be displayed on the LCD.
(e.g.: On screen 1-B, only one Phase no. symbol ❶ is displayed and on screen 3-A all Phase no.
symbols ❶,❷,❸ are displayed. However, none of them is displayed on screen 1-A, 2-A and 3-G.)
* Screen 3-A shows Phase voltage and Screen 3-H Line voltage.

Top : V
Middle : A
Bottom : P

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 16 −

KEW6305

KEW6305

Selecting/ switching display contents 

● For the other wiring systems:
  Screens can be switched in the same way as described in the previous page.

WIRING Screen A B C D E F G

3P3W3A

1

Top V(avg) V1 V2 V3

− − −Middle A(avg) A1 A2 A3

Bottom P P1 P2 P3

2

Top P P1 P2 P3

− − −Middle S S1 S2 S3

Bottom PF PF1 PF2 PF3

3

Top V1 A1 P1 PF1 S1 Q1 f

Middle V2 A2 P2 PF2 S2 Q2 −
Bottom V3 A3 P3 PF3 S3 Q3 −

3P3W

1

Top V(avg) V1 V2

− − − −Middle A(avg) A1 A2

Bottom P P1 P2

2

Top P P1 P2

− − − −Middle S S1 S2

Bottom PF PF1 PF2

3

Top V1 A1 P1 PF1 S1 Q1 f

Middle V2 A2 P2 PF2 S2 Q2 −
Bottom − − − − − − −

1P3W

1

Top V(avg) V1 V2

− − − −Middle A(avg) A1 A2

Bottom P P1 P2

2

Top P P1 P2

− − − −Middle S S1 S2

Bottom PF PF1 PF2

3

Top

V1 A1 P1 PF1 S1 Q1 f

Middle V2 A2 P2 PF2 S2 Q2 −
Bottom − − − − − − −

1P2W (3ch)

1

Top V V V V

− − −Middle A(avg) A1 A2 A3

Bottom P P1 P2 P3

2

Top P P1 P2 P3

− − −Middle S S1 S2 S3

Bottom PF PF1 PF2 PF3

3

Top V1 A1 P1 PF1 S1 Q1 f

Middle − A2 P2 PF2 S2 Q2 −
Bottom − A3 P3 PF3 S3 Q3 −

1P2W (2ch)

1

Top V V V

− − − −Middle A(avg) A1 A2

Bottom P P1 P2

2

Top P P1 P2

− − − −Middle S S1 S2

Bottom PF PF1 PF2

3

Top V1 A1 P1 PF1 S1 Q1 f

Middle − A2 P2 PF2 S2 Q2 −
Bottom − − − − − − −

1P2W (1ch)

1

Top V

− − − − − −Middle A

Bottom P

2

Top P

− − − − − −Middle S

Bottom PF

3

Top

V A P PF S Q f

Middle − − − − − − −
Bottom − − − − − − −

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 17 −

KEW6305

KEW6305

Data saving

6-3. Data saving

Instantaneous values ( W Range) can be saved by manual operation only.

[Saving procedure]
(1) File no. screen is displayed and data will be saved when pressing the

Key during a measurement

at

W Range.

Screen at W Range File no. screen Screen at W Range

(2) Another press of

Key saves another data in the preceding file.

(In this case, File no. is not displayed but the buzzer sounds like pi.)

File no.

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 18 −

KEW6305

KEW6305

Integration value measurement:

Wh

Range

7. Integration value Measurement:

Wh Range

7-1. Steps for measurement

Ensuring your safety

↓

Preparation for measurement

↓

Setting

↓

Wiring

↓

Integration value measurement

● Parameters for

Wh Range

Parameters to be displayed on the LCD Unit

Active

energy

(consumption)

WP : Total active energy
WP1/WP2/WP3 : Active energy of each phase

Wh

Apparent

energy

(consumption)

WS : Total apparent energy
WS1/WS2/WS3 : Apparent energy of each phase

VAh

Integration

elapsed time

TIME : Hour; Min.; Sec.
Hour; Min.
Hour

---

SET UP Range

Basic Setting Measurement setting

Setting 01 Wiring systemSetting 09 Recording interval
Setting 02 Voltage range

Setting 10 Specifying rec. period or endless rec.
Setting 03 Clamp sensor Setting 11 Time period setting Time setting
Setting 04 Current range Setting 12 Time period setting Date setting
Setting 05 VT ratio

(if necessary)

Setting 13 Start of continuous measurement

Setting 06 CT ratio

(if necessary)



Setting 14 End of continuous measurement

Range

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 19 −

KEW6305

KEW6305

How to start/ stop measurement

Start measure­ment

LED

LED blinks

Stand-by
mode

7-2. How to start/ stop measurement

● To start/ stop measurement manually ● To start/ stop measurement at the preset date&time

Ho ld down the

START
/STOP

Key f or

over 2 sec.

Wh Range

Configure the settings for Setting 10/

11/12, and then press the

START
/STOP

Key.

File no. screen is displayed for about 2 sec.

- Manual operation : Pressing the

START
/STOP

Key starts measurement anytime.

- Automatic operation : KEW6305 enters into stand-by mode and wait until the
preset start time comes.

The Status indicator LED blinks when the instrument is in stand-by mode and it
stays on when measurement starts.

* Display is updated every 1 sec.
* Data will be saved at the interval selected at Setting 09.
* While performing measurement, select the

W Range to view

instantaneous values and the

SET UP Range to check the

details of settings.

Manual operation

Hold down the

START
/STOP

Key for over

2 sec.

Automatic operation

Measurement stops automatically
when the preset date& time comes.

The status indicator LED goes off when measurement stops (or file is closed).

* When the destination to save data has been set to the internal memory, 

 symbol is displayed

on the screen instead of 

 symbol.

Integration values remain displayed on the LCD when measurement ends.
Press the 

ESC

 Key at least 2 sec to select dEL and clear the display if the displayed values will not

be used in further measurements.

LED lights up

Measuring

Stop measurement

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 20 −

KEW6305

KEW6305

How to switch screens/ save data

7-3. How to switch screens/ save data

● Screens and switching method
< e.g. Three-phase 4-wire 3P4W >

<For the other wiring systems>

Wiring system (Setting 01) Displayed at

Parameters to be displayed

Screen 1 Screen 2 Screen 3 Screen 4

* Single-phase 2-wire (1ch) 1P2W(1ch)

Top

Middle

Bottom

TIME

WP
WS

− − −

* Single-phase 2-wire (2ch)
* Single-phase 3-wire
* Three-phase 3-wire
* Three -phase 3-wire 3A

1P2W(2ch)
1P3W
3P3W
3P3W3A

Top

Middle

Bottom

TIME

WP
WS

TIME
WP1
WS1

TIME

WP2

WS2

−

* Single-phase 2-wire (3ch)
* Three -phase 4-wire

1P2W(3ch)
3P4W

Top

Middle

Bottom

TIME

W

P

WS

TIME
WP1
WS1

TIME

WP2

WS2

TIME
WP3
WS3

● Saving data (Data will be saved automatically.)

Screen1 Screen2

Screen3 Screen4

Integration interval

Energy

Elapsed time

Data saving

Start of integration
(Manual/ automatic operation)

Energy to be saved.

0

End of integration
(Manual/ automatic operation)

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 21 −

KEW6305

KEW6305

Demand Measurement :

DEMAND

Range

8. Demand Measurement :

DEMAND Range

8-1. Steps for measurement

Ensuring your safety

↓

Preparation for measurement

↓

Setting

↓

Wiring

↓

Demand measurement

* Measured demand values will be displayed on the LCD at the start of measurement.

● Parameters for

DEMAND

Range

Parameters to be displayed on the LCD Unit

Target value W

Predicted value W

Present value W

Load factor %

Demand time −

Max. demand value W

When max. demand value measured −

SET UP Range

Basic Setting Measurement setting

Setting 01 Wiring systemSetting 09 Recording interval
Setting 02 Voltage range

Setting 10 Specifying rec. period or endless rec.
Setting 03 Clamp sensor Setting 11 Time period setting Time setting
Setting 04 Current range Setting 12 Time period setting Date setting
Setting 05 VT ratio

(if necessary)

Setting 13 Start of continuous measurement

Setting 06 CT ratio

(if necessary)



Setting 14 End of continuous measurement

Setting 15 Target demand

Setting 16 Demand measurement cycle

Setting 17 Demand warning cycle

Range

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

KEW6305

KEW6305

How to start/ stop measurement

Start measure­ment

LED

LED blinks

Stand-by
mode

8-2. How to start/ stop measurement

● To start/ stop measurement manually ● To start/ stop measurement at the preset date&time

Ho ld down the

START
/STOP

Key f or

over 2 sec.

DEMAND

Range

Co nfigu re the set tings fo r Se tting

14/15, and then press the

START
/STOP

Key.

File no. screen is displayed for about 2 sec.

- Manual operation : Pressing the

START
/STOP

Key starts measurement anytime.

- Automatic operation : KEW6305 enters into stand-by mode and wait until the
preset start time comes.

The Status indicator LED blinks when the instrument is in stand-by mode and it
stays on when measurement starts.

* Display is updated every 1 sec.
* Data will be saved at the interval selected at Setting 13.
* Buzzer sounds when a predicted value exceeds a target value set

at Setting 15 in the pre-set period set at Setting 17.

* While performing measurement, select the W Range to view

instantaneous values, Wh Range to view integration values and

SET UP Range to check the details of settings.

Manual operation

Hold down the

START
/STOP

Key for over

2 sec.

Automatic operation

Measurement stops automatically
when the preset date& time comes.

The status indicator LED goes off when measurement stops (or file is closed).

* When the destination to save data has been set to the internal memory, 

 symbol is displayed

on the screen instead of   symbol.

Integration values remain displayed on the LCD when measurement ends.
Press the 

ESC

 Key at least 2 sec to select dEL and clear the display if the displayed values will not

be used in further measurements.

LED lights up

Measuring

Stop measurement

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 23 −

KEW6305

KEW6305

Screens/ saving data

8-3. Screens/ saving data

● Parameters displayed on screens and switching method

Screen 1 Screen 2 Screen 3
Top : Target value Top : Demand time Top : Date when max. demand value measured
Middle : Predicted value Middle : Load factor Middle : Time when max. demand value measured
Bottom : Present value Bottom : Present value Bottom : Max. demand value

● Saving data (Data will be saved automatically.)

<

Demand measurement with this instrument >

< Max demand value and data saving point >

(W)

* Load factor (%) = Present value/ Target value*100

Demand interval

Inspection

cycle

Inspection
cycle

: Target value
: Predicted value
: Present value
: Buzzer sounds and

Backlight lights up

: Demand value (Present value)

: Demand value (Present value)

: Max demand value
(displayed on the LCD)

● : Data saving
○ : Demand value to be saved

Elapsed time

0

Demand value (W) Demand interval

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 24 −

KEW6305

KEW6305

SD card/ Saved data

9. SD card/ Saved data

9-1. SD card compatibility

This instrument supports 1/ 2Gbyte SD cards.

● Max number of saved data

Destination to save data SD card Internal memory

Capacity 1GB 2GB 3MB

Manual saving (

W )

approx. 3.3 million results approx. 6.7 million results approx. 10,000 results

Auto-saving

at preset interval

1 sec approx. 8 days approx. 17 days approx. 33 min.

1 min approx. 16 months approx. 33 months approx. 33 hours

30 min 3 years or more approx. 42 days

Max number of file 511 4

* In case that no file has been contained in SD card.

● File name
  File name is assigned automatically.

File name ：

5 O – 0 0 1 . KEW

1: Manual saving
2: Auto-saving (using Timer function)

Fixed no.

SD: SD card
ME: Internal memory

File no. (001 – 999)

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 25 −

KEW6305

KEW6305

Parameters to be saved

● Parameters to be saved

The table below shows the parameters to be saved corresponding to each measurement range.
(Parameters to be saved are different depending on wiring systems.)

Manual saving : parameters in column 1 only
(except for max/ min/ avg of each parameter)
Auto-saving : all parameters in column 1 & 2

Parameters to be saved

1

Voltage

(RMS)

Vi : voltage of each phase
Vi max : max. Vi values
Vi min : min. Vi values
Vi avg : avg. Vi values

Current

(RMS)

Ai : current of each phase
Ai max : max. Ai values
Ai min : min. Ai values
Ai avg : avg. Ai values

Active power

P : total active power Pi : active power of each phase
P max : max. P value Pi max : max. Pi values
P min : min. P value Pi min : min. Pi values
P avg : avg. P value Pi avg

: avg. Pi values

Reactive power

Q : total reactive power Qi : reactive power of each phase
Q max : max. Q value Qi max : max. Qi values
Q min : min. Q value Qi min : min. Qi values
Q avg : avg. Q value Qi avg : avg. Qi values

Apparent power

S : total apparent power Si : apparent power of each phase
S max : max. S value Si max : max. Si values
S min : min. S value Si min : min. Si v

alues

S avg

: avg. S value Si avg : avg. Si values

Power factor

PF : power factor of whole system PFi : power factor of each phase
PF max : max. PF value PFi max : max. PFi values
PF min : min. PF value PFi min : min. PFi values
PF avg : avg. PF value PFi avg : avg. PFi values

Frequency

f : frequency of V1
f max : max. f value
f min : min. f value
f avg : avg. f value

Neu t r a l
current

In : current on neutral

line

In max

: max. In value
In min : min. In value
In avg : avg. In value

2

Active energy
(consumption)
(regenerating)

(overall)

+WP : total active energy (consumption)
+WPi : active energy (consumption) of each phase

-WP : total active energy (regenerating)

-WPi : active energy (regenerating) of each phase
#WP : total active energy (overall)
#WPi : active energy (overall) of each phase

Apparent

energy
(consumption)
(r

egenerating)

(overall)

+WS : total apparent energy (consumption)
+WSi : apparent energy (consumption) of each phase

-WS : total apparent energy (regenerating)

-WSi : apparent energy (regenerating) of each phase
#WS : total apparent energy (overall)
#WSi : apparent energy (overall) of each phase

Reactive energy

(consumption)

+WQ : total reactive energy (consumption)

Demand value

#DEM : total demand va

lue #DEMi

: demand value of each phase

TARGET : target demand value

* i = 1, 2, 3
where, max. and avg. mean maximum and average values during an interval.

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 26 −

KEW6305

KEW6305

Data transfer

9-2. Data transfer

1. SD card and USB
Data in SD card or internal memory can be transferred to PC using USB connection or SD card slot/

reader.

Method of transfer

USB Card reader

SD card data (file) △

*1

O

Internal memory data (file) O --------

*1 : It is reccomended to transfer the data with big size by use of SD card since trasfer of such
data via USB takes time. (transfer time : approx 320MB/ hour)

* As to the manipulation of SD cards, please refer to the instruction manual attached to the card.
* In order to save data without any problem, make su

re to delete the files other than the data measured

with this instrument fr

om the SD card.

2. Bluetooth
Measuring data can be checked on android devices in real-time via Bluetooth communication.
It is neccesary to enable Bluetooth function prior to using Bluetooth communication. (Setting No. 26:

Bluetooth)

* Before starting to use this function, download the special application KEW Smart f

rom the Internet

site.

The application 

KEW Smart is available on download site for free. (An Internet access is required.)

Internal memory/
SD card data

USB connection

SD card

SD card slot or
card reader

Bluetooth

Android device

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− −

KEW6305

KEW6305

Wiring check:

WIRING CHECK

Range

10. Wiring check:

WIRING CHECK Range

10-1．Checking procedure

Select the WIRING CHECK Range for checking proper connection.

STEP1

After connections are complete, set the Function switch to the

WIRING CHECK

Range.

Then present voltage, current, power factor and electric power (instantaneous value) are

displayed on the LCD as shown in the table below.

STEP2

Press the Key.

symbol keeps

blinking for about 5 sec.

STEP3

Check result will be

displayed as follows.

Everything is OK. Error is found.

* Check results may be affected if great power factors (0.5 or less) exist at the measurement sites.

Wiring system

(Setting no. 01)

Display

position

Items to be displayed

Screen 1Screen 2Screen 3Screen 4Screen 5Screen

6

3P4W

3P3W3A

Top

Middle

Bottom

f
V(avg)
A(avg)

V1
V2
V3

A1
A2
A3

P1
P2
P3

PF1
PF2
PF3

DEG(V1)
DEG(V2)
DEG(V3)

3P3W
1P3W

Top

Middle

Bottom

f
V(avg)
A(avg)

V1
V2

−

A1
A2

−

P1
P2

−

PF1
PF2

−

DEG(V1)
DEG(V2)

−

1P2W (3ch)

Top

Middle

Bottom

f

V
A(avg)

V

−

−

A1
A2
A3

P1
P2
P3

PF1
PF2
PF3

−

1P2W (2ch)

Top

Middle

Bottom

f

V
A(avg)

V

−

−

A1
A2

−

P1
P2

−

PF1
PF2−−

1P2W (1ch)

Top

Mid

dle

Bottom

f

V

A1

V

−

−

A1

−

−

P1

−

−

PF1

−−−

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 28 −

KEW6305

KEW6305

Criteria of judgment and cause

10-2. Criteria of judgment and cause

Check Criteria of Judgment Cause

Frequency Frequency of V1 is within 45 - 65Hz. - Voltage clip is firmly connected to the

DUT?

- M e as u r i n g to o h i gh h ar m on i c
components?

Voltage input Voltage input is 10% or more of

(Voltage Range x VT).

- Voltage clip is firmly connected to the
DUT?

- Voltage test leads are firmly connected
to the Voltage input terminal on the
instrument?

Voltage balance Voltage input is w

ithin ±20% of reference
voltage (V1)
*

(not checked in single-phase wiring)

- Settings are matched with the wiring
system under test?

- Voltage clip is firmly connected to the
DUT?

- Voltage test leads are firmly connected
to the Voltage input terminals on the
instrument?

Voltage phase Phase of voltage input is within ±10º of

reference value (proper vector).

- Volt a g e t e s t l e a d s ar e prope r l y
connect

ed?

(Connected to pr

oper channels?)

Current input Current input is 10% or more and 110%

or less of (Current Range x CT).

- Clamp sensors are firmly connected
to the Power inp ut termin als on the
instrument?

- Setting for Current Range is appropriate
for input levels?

Current phase - PFi (absolute value) is 0.5 or more.

(3P3W3A : 0≦PFi)

- Pi is positive value.

- Arr ow m a r k on th e Cla m p sen s o r
and the

orientation of flowing current

coincide with each other?

(Power supply to Load)

- Clamp sensors ar

e connected properly?

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

− 29 −

KEW6305

KEW6305

Data check:

DATA CHECK

Range

11. Data check:

DATA CHECK Range

Past 10 data (including the latest one) can be recalled and checked on the LCD.
Select the

DATA CHECK Range for checking the data.

Data No. 01 02

・・・

09 10

Saved data Latest data

Two before the

latest

Nine before

the latest

Ten before the

latest

STEP1

After connections are complete, set the Function switch to the

DATA CHECK

Range.

Then RECALL symbol appears and the latest data (No. 01) is displayed on the LCD.

STEP2

Use the Keys and select any Data no..

STEP3

Use the Keys and switch screens.

Screens can be switched at

DATA CHECK Range are as follows.

Use the

Keys and select any Data no..

Wiring system

(Setting no. 01)

Display

position

Items to be displayed

Screen 1

(Date& time)

Screen 1
(Voltage)

Screen 1

(Current)

Screen 4

(Power)

Screen 5

(Power)

Screen 5

(DEMAND)

3P4W

3P3W3A

Top

Middle

Bottom

YY.MM.DD

hh:mm:ss

----

V1
V2
V3

A1
A2
A3

P1
P2
P3

TIME
+WP
+WS

Target value

----

Present value

3P3W
1P3W

Top

Middle

Bottom

YY.MM.DD

hh:mm:ss

----

V1
V2

----

A1
A2

----

P1
P2

----

TIME
+WP
+WS

Target value

----

Present value

1P2W (3ch)

Top

Middle

Bottom

YY.MM.DD

hh:mm:ss

----

V1

----

----

A1
A2
A3

P1
P2
P3

TIME
+WP
+WS

T

arget value

----

Present value

1P2W (2ch)

Top

Middle

Bottom

YY.MM.DD

hh:mm:ss

----

V1

----

----

A1
A2

----

P1
P2

----

TIME
+WP
+WS

Target value

----

Present value

1P2W (1ch)

Top

Middle

Bottom

YY.MM.DD

hh:mm:ss

----

V

----

----

A

----

----

P

----

----

TIME
+WP
+WS

Target value

----

Present value

Select the

DATA CHECK

Range.

LCD shows the saved data.

RECALL symbol
appears.

Data no. is
displayed.

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com