POWER METER

KEW 6305

Compact Power meter for costsavings through Energy monitoring

Comprehensive real-time monitoring, recording and analysis of single and 3-phase systemsl Voltage, Current, Power Factor and Frequency
measurementsl Power analysis (Active, Apparent and Reactive power)l Energy analysis (Active, Apparent and Reactive energy)
l Active power accuracy: ±0.3%rdg±0.2%f.s.
l Automatic wiring check function to prevent incorrect connections
lLarge memory capability (2 GB) using built-in SD card
interfacel Real-time and remote measurementsl Windows software for data analysis and setting via USB
port or Bluetooth®
l Synchronous measurements between two units of KEW 6305
l Wide selection of clamp sensors allow measurementsfrom 0.1 to 3000A
l Automatic recoginition of connected sensor typel

A simple and dependable way for Cost
As easy as 1 Ü 2 Ü 3 !

Voltage Input Terminals

Starting from OFF position and rotating the Rotary switch clockwise,
KEW 6305 is ready to use in 3 simple steps

1. SET UP

Ü

Rotate the Rotary switch to SET UP. All the instrument settings can be easily
selected by using instrument buttons. All the settings can also be selected byconnecting KEW 6305 to a PC via USB or Bluetooth®.

2. WIRING CHECKCurrent Input Terminals (With cover)Rotate the Rotary switch to WIRING CHECK. The Automatic Wiring check function will prevent incorrect connections, check the connections and display theresults on the LCD.
Error messages appear on display to indicate wrong orientation of Clamp sensors or incorrect connections.
Everything is OK

Error is foundShows “Good”
Shows “Err” (Error) e.g.: Err PH A
Ô Current phase (orientation of sensor) may be incorrect.

Ü

3. W/Wh/DEMAND Measurements

Rotate the Rotary switch to W/Wh/DEMAND. The instrument can perform
Instantaneous, Integration and DEMAND measurements.
Press START / STOP button to start / stop recording.

Various measurements by using applications for PCs and Andr
PC software application to check synchronous measurements on 2 power lines

Real-time and remote measureme

Two units of KEW 6305 can be used simultaneously and perform synchronous measurements on 2 power lines.
PC software application can synchronize recording intervals and internal clocks of two KEW 6305 via Bluetooth®
communication or USB port. Measurements will be transmitted to the PC.
Parameters such as active, reactive and apparent power; active, reactive and apparent energy and demand will
be graphically displayed in real-time. * For wireless communication, a PC with Bluetooth function is required.

Measurements can be displayed in graphic or numeric forms on Android™ devices in real-time via
Bluetooth® communication.
Remote checking of measurements is possible
without accessing KEW 6305.

®

Max communication distance: 10mBluetooth® is a registered trademark of the Bluetooth SIG, Inc.
Android™ is a registered trademark of the Google Inc.

Combined values will be displayed ona graph in real-time.
Products with communication functions are regulated in some countries. Please contact us for purchase.
KEW 6305 is also available with the Bluetooth communication function disabled type.

Real-time display

st Savings through Energy monitoring
Data can be saved on SD card or transferred to a PC
Data transmission via USB
Data saved on an SD card or internal memory of KEW 6305 can be directly transferred to a PC via
USB. USB ver. 2.0 is supported.

SD card Interface

Max amount of data (reference)Data saved on:

SD card

Capacity
Instantaneous measurement
1 sec.
Integration / demand
1 min.
measurement interval
30 min.
Max number of files

2GB
6,670,000
17 days
992 days
3 years or more
511

SD cards up to 2GB can be used.

Internalmemory
3MB
10,00033 minutes
33 hours
42 days4*in case the SD card is empty

Data check

The last 10 measurements saved on SD card or internal memory are displayedon the LCD.
This function allows quick check of the recorded data without using a PC.

Windows software for data analysis and setting via USB port
Automatic creation of graph and list from recorded data.
Centralized management of setting and recorded data acquired from multiple devices.
Data can be expressed in crude oil and CO2 equivalent values in the report.

【System requirements】
OS:Windows® 11/10
Display: XGA(Resolution 1024×768 dots) or more
Required hard-disk space: 1Gbyte or more
Other:
With CD-ROM drive and USB port
.NET Framework (4.6.1 or later)* Windows® is a registered trademark of Microsoft in the United States.

roid™ devices

ents

FeaturesPower and Energy measurements
Voltage (True RMS), Current (True RMS), active power, apparent power, reactive power, active energy, apparent energy, reactive energy,
power factor (cosθ), frequency, demand measurement, current flowing on the neutral line (on Three-phase 4-wire measurement only)

Recording interval can be set between 1 second and 1 hour
Tablet device

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

Power and power factor for each phase
Not only the total power and power factor but also the breakdown related to each phase are shown.

Double power supply system via AC line and batteries
In case of mains blackout, the power to the instrument is automatically supplied by the Alkaline batteries (Max continuous measurement: 15 hours)
In the case of both power supplies to the instrument are interrupted, recorded data just before the event of the interruption will be saved.
Rechargeable nickel-hydrogen batteries can be used.

Optional Accessories
Load current clamp sensors

Load current flexible clamp sensors

MODEL 8128 MODEL 8127 MODEL 8126 MODEL 8125 MODEL 8124

KEW 8135

MAX50A

φ24MAX100AMAX

φ24200AMAX

φ40500A

φ40MAX1000A φ68

MAX

φ751000Aφ110

KEW 8133

MAX

φ170

3000A

Before connecting with sensors KEW 8133 or KEW 8135, confirm that the internal
firmware version is later than the one listed in the table below.

● KEW 6305 Specification
Wiring connections

MAX50A

KEW 8130

MODEL
KEW 8133
KEW 8135

1P2W, 1P3W, 3P3W, 3P3W3A, 3P4W

Firmware version
V1.10 or later
V2.00 or later

Measurements

Voltage, Current, Frequency, Active power

Parameters

Apparent power, Reactive power, Active energy, Apparent energy,
Reactive energy, Power factor (cos θ), Neutral current

The latest firmware is available on our website.

Voltage range

150.0/300.0/600.0V

Voltage accuracy±0.2%rdg±0.2%f.s. (sine wave, 45 to 65Hz)

When using sensor KEW 8135, confirm the serial number of the tester KEW 6305
is later than that is listed in the table below.

Current range

10.00/50.00/100.0/250.0/500.0A/Auto (with clamp sensor 8125)

Current accuracy±0.2%rdg±0.2%f.s.+ Accuracy of Clamp sensor (sine wave, 45 to 65Hz)*+1%f.s. at the lowest range.

Effective input range

10 to 110% of rating range

Display range5 to 130% of each range (Voltage)
1 to 130% of each range (Current)

Crest factor

Voltage : 2.5 or less, Current : 3.0 or less (with 90%f.s. or less)

Active power accuracy±0.3%rdg±0.2%f.s.+ Accuracy of Clamp sensor*+1%f.s. when the lowest current ranges is selected.

Supported serial numbers

Distribution board door can be closed during measurement?
KEW 6305 facilitates safe testing thanks to its extreme compact
design and with two attractive optional accessories: a carrying
case with magnet for attaching it to the sides of metal enclosures and a power supply adapter which takes the power for theinstrument from the supply being measured.

Effect of power factor

Active power: ±1.0%rdg cos θ=±0.5 (PF=1)

Frequency meter range

40.0 to 70.0Hz

Frequency meter accuracy±3dgt

Accuracy precondition

PF=1, Sine wave, 45 to 65Hz, 23℃±5℃

Display update period

1 second

Operating temperature andhumidity range

0 to +50℃, relative humidity 85％ or less(no condensation)

Storage temperature andhumidity range-20 to +60℃, relative humidity 85％ or less(no condensation)

Communication interface

USB, Bluetooth®

PC card interface

SD card (2GB)

Safety standard

IEC 61010-1 CAT Ⅲ 600V, IEC 61326

Power source (AC Line)

AC100 to 240V±10% (50/60Hz)

Power source (DC battery)LR6 or Ni-MH (HR-15-51)×6 (Battery charger not included),Battery life approx. 15h (LR6)Power consumption

10VA (max.)

KEW 6305-01

Dimension
Weight175 (L)×120 (W)×65 (D)mm
Approx. 800g (including batteries)

MODEL 8125 (500A) × 3(Carrying case 9125)

Accessories

Optional accessories

Power supply adapter

7141B (Voltage test lead set), 7148 (USB cable),
7170 (Power cord[EU]) or 7240 (Power cord[UK]),
9125 (Carrying case for KEW 6305, KEW 6305-01),
9135 (Carrying case for KEW 6305-03, KEW 6305-05),
8326-02 (SD card[2GB]), KEW Windows (PC Software),Battery (LR6)×6, Quick manual
8124, 8125, 8126, 8127, 8128 (Load current Clamp Sensor),
8130, 8133, 8135 (Flexible clamp sensor),
8312 (Power supply adapter), 9132 (Carrying case with magnet)

8369312 or later

If your KEW 6305 has an earlier serial number than the one listed above, accuracywill not be guaranteed when two or more KEW 8135 are connected with KEW 6305.

Carrying case with magnet

MODEL 8312

MODEL 9132

For taking single phase supply(100 to 240V) from the test leads
to power the instrument

For mounting inside
metal distribution
boardsKits

KEW 6305-03
KEW 8130 (1000A) × 3(Carrying case 9135)

KEW 6305-05
KEW 8133 (3000A) × 3(Carrying case 9135)

Photo: 6305-03

Please read the "Safety Warnings" in the instruction manual supplied with the instrument thoroughly and completelycorrect use. Failure to follow the safety rules can cause fire, trouble, electrical shock, etc. Therefore, make sure
Safety Warnings : forto operate the instrument on a correct power supply and voltage rating marked on each instrument.

For inquiries or orders :2-5-20, Nakane, Meguro-ku, Tokyo, 152-0031 Japan
Phone:+81-3-3723-0131
Fax:+81-3-3723-0152

This leaflet was produced in January 2024. The contents of this leaflet are subject to change without notice.

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