Kyoritsu Electrical Instruments Works, Ltd. KEW 6305 Quick Manual

Quick Manual

DIGITAL POWER METER

KEW 6305

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KEW6305Preface

● 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:

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

6. Instantaneous value Measurement:

7. Integration value Measurement:

8. Demand Measurement:

9. SD card/ Saved data ··························································································································24

10. Wiring check:

11. Data check:

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

SET UP

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

W

Wh

Range ···················································································18

DEMAND

WIRING CHECK

DATA CHECK

Range ·······················································································21

Range··························································································27

Range ···································································································29

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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
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

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

W

Key. Integration and demand

SAVE

ransmitted to PC via

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

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eal-time via Bluetooth communication.

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Functional Overview

KEW6305Functional Overview

SET UP

Configures KEW6305 and makes settings for
measurements.

WIRING CHECK

Performs a check for proper connection.

(Section 10) “Wiring check”

See

for further details.

[W] Instantaneous value measurement

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

(Section 6) “Instantaneous value measurement”

See
for further details.

[Wh] Integration value measurement

Measures active/apparent/reactive powers on
each CH.

(Section 7) “Integration value measurement”

See
for further details.

DATA CHECK

Displays the saved data on the LCD.

(Section 11) “Data Check”

See
details.

for further

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[DEMAND] Demand value measurement

Measures demand values based on the preset
target values.

(Section 8) “Demand measurement”

See
further details.

KEW6305

for

KEW6305 Instrument Layout

2. Instrument Layout

Front view

Display

（LCD）

Keys

Function Switch

Power on/ off, select
Measurement range.

W SAVE

Save measured

W

SAVE

instantaneous values

Key

Status indicator LED

Light up: Recording&
Measuring

Green

Blink: Stand-by

Red Light up: Recording error

START/ STOP

Start/stop integration &

START
/STOP

demand measurements

Backlight

Turn on/off the LCD
backlight

Cursor

Select settings,
switch screens

ENTER

Confirm entries

ENTER

ESC

Cancel setting change
or cl ear i nte grati on/

ESC

demand data selected
with

RESET

/

Cursor

Key

Key

Key

Key

Key

Key

DATA HOLD

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

being fixed.

DATA
HOLD

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.

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KEY LOCK

/

Key

Connector

Power Connector

Side face

< When the Connector Cover is closed >

SD Memory Card

KEW6305Connector

Voltage Input Terminal

(VN, V1, V2, V3)

Current Input Terminal

(A1, A2, A3)

Terminal Cover

< When the Connector Cover is opened >

SD Card Cover

USB Port Cover

Symbols displayed on the LCD
< All symbols >

Wiring system

Phase No.

Voltage range

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SD Card Slot

Current range

Units

USB Port

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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.

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KEW6305Preparations

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 w
off 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.

ill be powered

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.

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KEW6305 Cord connection

Cord connection

Voltage test lead

Match the
arrow marks.

Power cord

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

Clamp sensor

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
instruction manual.

KEW6305

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(Section 15) Troubleshooting

Error No. (001 – 063)

in the full

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