POWER QUALITY ANALYZER

KEW 6315
Simultaneous recording of Power & Power Quality measurements,
The perfect tool for Energy Saving and Power Quality control.

lSimultaneous Power & Power qualitymeasurements

Power/ Harmonics/ Waveform/ Power quality arerecorded at all CHs. (Voltage: 3ch, Current 4ch)
l Helpful support functions
Quick Start Guide, Wiring check and Sensor detection
for easy and reliable measurementl Measurement with high accuracy
Guaranteed accuracy: ±0.3%rdg (energy),			±0.2%rdg (voltage/ current)
Complies with the International Standard
IEC 61000-4-30 Class S and the European Standard EN 50160

Remote monitoring on PC and Android™ device
Remote checking of measurement in real-time is possible via Bluetooth®
communication. Recorded data can be saved in the supplied SD card.
EN 50160 report can be generated after measurment by PC software.
l Various Clamp Current Sensors
Various types of clamp and flexible sensors are available: from1000mA range up to 3000A range and Earth leakage measurementsl Energy consumption check on site
Trend and demand graphs for easy recognition.
l TFT color display with high resolutionl IEC 61010-1 CAT Ⅳ 300V / CAT Ⅲ 600V / CAT Ⅱ 1000VlSimultaneous recording of all power and power quality
with easy operation
Quick Start Guide

Guide start

Easily and securely
starts recording

Connect to the circuit

Wring check

One-Touch START/STOP Key for Quick Start Guide
providing easy setup guides.

Select interval

Set recording time

Print Screen

Power & Energy● This function takes a color photo of the display screen andsaves it as BMP file. Useful for report creation.

Instantaneous value

List

Start recording

Zoom（8-split）

Zoom（4-split）● Measures instantaneous / average / min / max for voltage,current, active / reactive / apparent power, cosθ and line

frequency all on one screen.

● The recording time for these parameters can be set from 1

second up to 2 hours in several steps.

Trend● Trend of all main parameters and customized Zoom functions.
● Function to define size of capacitor banks of PF correction unit.

Integration value● The display will list the active / reactive / apparent energy intotal and for each phase consumed (or generated in case ofco-generation like solar panels, etc).

● The elapsed time is also shown on the same display screen.

DemandMeasurement

Change in specific period

Demand change

Power Quality● To support demand control, present energy usage and estimated value are dis-played on a graph while recording max demand value and the occurred time.

Measures voltage swells / dips / interruptions / transients and inrush currents
that may indicate a weak power distribution system. Such phenomena may
damage or reset devices. KEW 6315 cancatch swells / dips / interruptions andinrush currents based on half cycle (10ms @ 50Hz or 8.3ms @ 60Hz) True RMS.
All necessary data is displayed bypressing one key.

Vector and Wiring check

VectorWiring check

Event

Ideal vector● Can display voltage and current by vector per CH and also unbalance ratio.
● Wiring check function confirms connection and displays ideal vector (at thelower left corner) according to the selected wiring system, and shows connection errors.

● Swell
Swell is an instantaneous voltage increase, most of the time
origina ted by upstream power line
failure or switching
OFF large load orswitching ON large
capacitor.

POWER QUALITY ANALYZER

KEW 6315
Real-time and remotemeasurements

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 dataacquired from multiple devices.
● Data can be expressed in crude oil and● Measurements canbe graphically displayed on Android™
devices or PC in realtime via Bluetooth ®
communication.

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 registered trademark of Microsoft in the United States.
Copyright
KYORITSU ELECTRICAL
INSTRUMENTS WORKS, LTD.
2013

for POWER QUALITYANALYZER

KEW 6315

KYORITSU ELECTRICAL INSTRUMENTS WORKS, LTD. Japan

www.kew-ltd.co.jp

Waveform● Displays voltage and current
on each Ch by waveform.
● Scales of voltage/current
axis and time axis are selectable, and also full-scale
function for automatic scaling is available.

USB Terminal
Digital Output Terminal● Open Collector Output (1ch)Harmonics Analysis

Analog Input Terminal● 2ch DC100mV / 1000mV, 10V. To

record additional parameters (e.g.
Lux, Temperature, Humidity,etc.)

GraphSD card Interface

List● SD cards up to 2GB can be used

● Graphic display of harmonic components up to 50thorder for voltage, current and power in total and foreach phase.

Possible recording time
When the 2GB of SD is used:● List display of harmonic content, RMS value andphase angle of each order.

Interval
1sec.
1min.
30min.

● Can analyze harmonic currents that may contributeto damage capacitor banks for PF correction, overheating transformers / neutral conductors / cables,
unwanted tripping of breakers.

● Dip
Dip, as the opposite of a swell, is an instantaneous voltage
decrease, most of the time caused by switching ON large
load e.g. motors or by downstream power line failure.
● Interruption
Interruption is a power line cut-off from any source ofsupply. It can be caused by a fault in a power line, whichcauses switch gear to open.

REC item＋Harmonics
Power
13days
3days
1year or more
3months
10year or more 7year or more

Data of power quality events are not considered toestimate the possible recording time. The max possible time will be shortened by recording such events.

Flicker
Designed to meet IEC 61000-4-15
Flicker is a phenomenon giving an impression of unsteadiness of visual sensation induced by periodic voltage changes caused by fluctuating loads when using:arc furnace, spot welder, crane, excavator, etc.

● Transients/Over Voltage (Impulse)
Transient is a very fast and momentary voltage increasethat can seriously damage devices connected to a power line. It may be caused by electrical switching events
such as unstable contacts of relays, tripping of breakers
but also by lightening. KEW 6315 can catch Transientsfrom 24 μs.
● Inrush Current
Inrush current is a surge current that happens whenmotors, large or low impedance loads are switched ON.
Then the current will stabilize as soon as the load hasreached normal working conditions.

ListTrend graph● Displays Pst (1min.) on a trend graph.

※Products with communication functions are regulated in some countries. Please contact us for purchase. KEW 6315 is also available with the Bluetooth communication function disabled type.

Optional Accessories
Load current clamp sensors

MODEL 8128 MODEL 8127

MAX50A

φ24MAX

MODEL 8126

MAXφ24100A

Load current flexible clamp sensors

200A

φ40

MODEL 8125

MAX500A

MODEL 8124

KEW 8135

KEW 8147

KEW 8148

MODEL 8312

1000A φ68
MAX50A

MODEL 9132

MAX

φ75

1000A

MAX

φ24MAX

70A

φ40

MAX

100A

MAX

φ110

3000A

φ170

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

30A

KEW 8133

MAXφ40

Leakage & Load current clamp sensors Power supply Carrying case withadapter
magnetKEW 8146

KEW 8130

Firmware version
V1.50 or later
V3.00 or later

The latest firmware is available on our website.

φ68※8146/8147/8148 can measure up to 10A

Distribution board door can be closed during
measurement?
KEW 6315 facilitates safe testing thanks to its extreme
compact design and with two attractive optional accessories: a carrying case with magnet (9132) for attaching it to
the sides of metal enclosures and a power supply adapter(8312) which takes the power for the instrument from thesupply being measured.

Kitsphoto : 6315-03

KEW 6315-01

KEW 6315-03

KEW 6315 × 1
MODEL 8125(500A) × 3
Carrying case : MODEL 9125

KEW 6315 × 1
KEW 6315 × 1
KEW 6315 × 1
KEW 8130(1000A) × 3
KEW 8130(1000A) × 4
KEW 8133(3000A) × 3
Carrying case : MODEL 9135 Carrying case : MODEL 9135 Carrying case : MODEL 9135

KEW 6315-04

KEW 6315-05

Specification
Wiring connections
Measurements andparameters

1P2W, 1P3W, 3P3W, 3P4W
Voltage, Current, Frequency, Active power, Reactive power,
Apparent power, Active energy, Reactive energy,Apparent energy, Power factor (cosθ), Neutral current,
Demand, Harmonics, Quality (Swell/Dip/Interruption,Transients/Over voltage, Inrush current, Unbalance rate),
Capacitance calculation for PF correction unit, Flicker

Voltage (RMS)
Range

Allowable input
Display range

0.15 to 130% of each range

Crest factor
Sampling speed ofVoltage transient
Current (RMS)
Range

Accuracy

3 or less
24μs

Accuracy

8128(50A type)5000mA/50.00A/AUTO
8127(100A type)10.00/100.0A/AUTO
8126(200A type)20.00/200.0A/AUTO8125(500A type)50.00/500.0A/AUTO
8124(1000A type)100.0/1000A/AUTO
8146/8147/8148(10A type)
1000mA/10.00A/AUTO
8130(1000A type)100.0/1000A/AUTO
8133(3000A type)300.0/3000A/AUTO
8135(50A type)5000mA/50.00A/AUTO±0.2%rdg±0.2%f.s.+accuracy of clamp sensor (sine wave, 40 to 70Hz)

Allowable input

1 to 110% of each range (rms). 200% of each range (peak)

Display range

0.15 to 130% of each range

Crest factor

3 or less±0.3%rdg±0.2%f.s. + accuracy of clamp sensor(power factor 1, sine wave, 40 to 70Hz)

Influence of powerfactor
Frequency meter range±1.0%rdg (reading at power factor 0.5 against power factor 1)

Power source (AC Line)Internal memory

AC100 to 240V / 50 to 60Hz / 7VA max
Alkaline size AA battery LR6 or Ni-MH (HR15-51)×6
Battery life approx. 3 h (LR6, Backlight OFF)FLASH memory (4MB)

PC card interface

SD card (2GB)Power source (DC battery)
600.0/1000V
600.0V Range : (sine wave 40 to 70Hz)
10% to 150% against 100V or more of nominal V : Nominal V±0.5%
Out of above range : ±0.2%rdg±0.2%f.s.
1000V Range : ±0.2%rdg±0.2%f.s.(sine wave 40 to 70Hz)
1 to 120% of each range (rms). 200% of each range (peak)

Accuracy

Active power

40 to 70Hz

Communication interface

USB, Bluetooth®

Display

320×240(RGB)Pixel, 3.5inch color TFT display

Display update period

1 sec.

Temperature and humidity range
Operating temperatureand humidity range
Storage temperature andhumidity range
Applicable standards

Dimension / Weight
Accessories

Optional accessories

23±5℃，relative humidity 85％ or less(no condensation)
0 to 45℃，relative humidity 85％ or less(no condensation)-20 to 60℃，relative humidity 85％ or less(no condensation)
CAT Ⅳ 300V / CAT Ⅲ 600V /CAT Ⅱ 1000V Pollution degree 2
IEC 61010-2-030, IEC 61010-031, IEC 61326, EN 50160
IEC 61000-4-30 Class S, IEC 61000-4-15, IEC 61000-4-7
175 (L) × 120 (W) × 68 (D) mm / Approx. 900g
7141B (Voltage test lead set), 7170(Power cord[EU]) or 7240(Power cord[UK]),
7219 (USB cable),8326-02(SD card [2GB]),
9125 (Carrying case for KEW 6315, KEW 6315-01)
9135 (Carrying case for KEW 6315-03, KEW 6315-04, KEW 6315-05),
Input terminal plate×6,
KEW Windows for KEW6315 (software),
Quick manual, Alkaline size AA battery (LR6)×6
8124, 8125, 8126, 8127, 8128 (Load current clamp sensor),
8130, 8133, 8135(Flexible clamp sensor),
8146, 8147, 8148(Leakage and Load current clamp sensor),
8312 (Power supply adapter), 9132 (Carrying case with magnet)

IEC 61010-1

Bluetooth® is a registered trademark of the Bluetooth SIG, Inc.
Android™ is a registered trademark of the Google Inc.

Please read the "Safety Warnings" in the instruction manual supplied with the instrument thoroughly and completely

correct 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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